Articles

Apr 16 2019

Do predator control programs help gamebirds like Pheasants? (Hint…No)

Author: DakotaBirder • Discussion: 2 Comments
Ring-necked Pheasant - Phasianus colchicus

South Dakota’s favorite bird…an introduced game bird that does have an economic impact in the state. but are predator control programs like Kristi Noem’s actually beneficial to pheasant populations? Or, in fact, is it likely to WORSEN the situation? For the scads of hunters and others who evidently have found my blog…read this post. Don’t take my word for it regarding this misguided predator control program. Take the word of Sportsmen’s groups…of outdoor magazines…of conservation groups…of the SCIENCE behind bird populations, predators, and habitat. If you truly want to save your resource and stop playing political games because you’re “liberal” or “conservative”…follow the FACTS. Then petition Noem to stop this nonsense and instead focus on habitat conservation efforts.

Wow.  Traffic on my blog literally shot up ten-fold since I posted about the idiocy of Kristi Noem’s predator control program in South Dakota. And with that traffic of course comes the haters, with direct emails to me, and attempted blog replies that offered nothing more than name calling. Not surprisingly, most were from hunters.  If you can get past the four-letter words and try to make some sense of some of the emails I’ve had, the general thought is that killing skunks, opossums, red fox, and raccoons is very helpful for Ring-necked Pheasant populations. And thus, these hunters are all for Noem’s little misguided foray into “conservation”.

Let’s look at the facts. Do you like to hunt Ring-necked Pheasants? Chances are you support groups like Pheasants Forever? Here’s what Pheasants Forever has to say about predator control programs:

Stating an investment in increased habitat is FAR more effective than predator control in improving pheasant populations, they state:

Less-expensive methods to improve game bird populations and nesting success exist. Experts have focused on the amount of habitat (composition of the landscape) and the arrangement (configuration) that increase nesting success by reducing the effectiveness of predators. Well-designed habitat projects can reduce predation by up to 80 percent.

Regarding predator control, they state it’s ineffective at helping broad-scale pheasant populations…and in fact, it may INCREASE interactions among predators and pheasants:

It is important to understand that sustained trapping efforts tend to stimulate reproduction by predators (compensating for artificially low densities) and create populations with proportionately more juveniles that wander more across the landscape thereby increasing the chances of encountering pheasants.

Overall, here’s their summary statement on predator control, and where money SHOULD be spent…on habitat restoration:

While predator removal and exclusion methods can increase nesting success on small areas, these methods are too expensive for use on a landscape basis and do not significantly increase the number of nesting birds over the long term. Through the addition and management of habitat, we not only decrease the impact predators have on existing nests, but also increase the number of nests and population size in an area. Predators will continue to eat pheasants and their nests, but weather and habitat conditions will drive population fluctuations.

What’s laughable about Noem’s program is that she ignored the advice of her own people, and ignored past research in South Dakota that has focused on Ring-necked Pheasant populations. Former Governor Daugaard held a “Pheasant Habitat Summit” in 2013 and followed up by commissioning a “Governor’s Pheasant Habitat Work Group”.  You know…actually investing in RESEARCH and DISCUSSION before unilaterally making a bad decision to start a predator control program. Land owners, hunters, and government personnel participated. Regarding predator control, the working group found that “When suitable habitat is available and weather conditions warrant, pheasant populations flourish without direct predator control“. Even when a misguided bounty program like Noem’s is established, they found “Bounty systems in other states have been ineffective because the origin of the predators cannot be verified”.

More information from sportsmen’s groups.  Midwest Outdoors published a piece on the “5 widespread myths about pheasant and quail populations“. One of those 5 myths is shown below:

Myth: Predators are the main reason there are fewer pheasants and quail.

Busted: Yes, coyotes and fox will eat pheasants and quail, and raccoons and skunks are likely culprits when it comes to raided nests. But predators don’t eat habitat, which is far and away the biggest reason why pheasant populations decline. High annual losses to predators should not be misunderstood to mean that predation is responsible for long-term upland population declines. Landscapes with good habitat often have high numbers of pheasant numbers, as well as high numbers of many potential predators.

 

The impact of predators is magnified and often pinpointed as the primary problem after habitat conditions deteriorate. Confine pheasants and quail to smaller and smaller parcels of habitat, and a predator’s job gets a whole lot easier. Thankfully, well-designed habitat projects can reduce predation by up to 80 percent. Through the addition and management of habitat, not only does there tend to be a decrease in the impact predators make on existing nests, but more habitat is likely to increase the number of nests and the overall gamebird population. And habitat for pheasants and quail comes at a fraction of the cost of other intensive predator reduction methods that are cost-prohibitive across a large area.

Just like Pheasants Forever, they note it’s HABITAT that’s the key, and if you have adequate, well designed habitat, that alone decreases nest predation by predators. And just like Pheasants Forever, they note it’s a FAR bigger “bang for the buck” in using conservation dollars to promote pheasant populations.

Another sportsmen/hunting group, Quail Forever, states the following (hint…it ‘s similar to statements from all the other groups:

Bottom line: Through the addition and management of habitat, we not only decrease the impact predators have on existing nests, but also increase the number of nests and population size in the area. This management comes at a fraction of the cost of other predator reduction methods.

MORE HABITAT, LESS PREDATION, BEST OUTCOME
Less-expensive methods to improve game bird populations and nesting success exist. Experts have focused on the amount of habitat (composition of the landscape) and the arrangement (configuration) that increase nesting success by reducing the effectiveness of predators. Well-designed habitat projects can reduce predation by up to 80 percent.

 

Programs such as Noem’s may actually do more HARM than good for Pheasant populations. For example, red fox are noted as the most effective predators on Ring-necked Pheasants, by our own Game Fish and Parks. But red fox populations are quite low in South Dakota, as they simply cannot compete with Coyotes. There’s a direct, inverse relationship between high coyote densities and red fox densities. As this story notes, hunters wrongly blame coyotes for predation on Ring-necked Pheasants, but our own Game Fish & Parks notes Coyotes have a minimal impact on Ring-necked Pheasant populations. Human intervention in removing predators results in unpredictable impacts on other wildlife, and ironically, hunters calling for removal of Coyote should note that would likely HARM Ring-necked Pheasant populations, as Coyotes not only help keep Red Fox populations low, but also help control other small mammalian predators on Ring-necked Pheasant nests.  This isn’t just one isolated case of an unintended consequence of predator control programs. Some other studies note that predator control programs focused on creatures like red fox simply create more of an ecological niche that other predators come in and fill, such as feral cats.

The one common thread from our own GFP…from Pheasants Forever…from Quail Forever…from all groups associated with conservation and wildlife management…NOTHING has anything close to the impact on Ring-necked Pheasant populations as 1) habitat, and 2) climate. So what factors could contribute to any perceived decline of gamebirds in South Dakota. HABITAT LOSS.  Starting in the mid-2000s, the eastern Dakotas have seen an expansion in cropland that literally rivals rates of deforestation in the tropical rain forests.  Here are multiple studies that have quantified recent grassland loss in the Dakotas:

  1. Wright and Wimberly (2013) found a net loss of 1.3 million acres of grassland that resulted from conversion to corn or soybeans in five states comprising the western Corn Belt over the five years from 2006 to 2011.
  2. Johnston (2014) also used the CDL to analyze land cover trends across the eastern Dakotas and found that corn and soy agriculture expanded by 27% (3.8 million ha) during the two years from 2010 to 2012.
  3. Reitsma et al. (2015) reported a net grassland loss of 4.6 million acres resulting from cropland expansion in the state of South Dakota over the six years from 2006 to 2012.

 

I’m a scientist. I look at evidence. I look at FACTS. The FACTS couldn’t be clearer.

  1. Predators aren’t driving any broad-scale decline in gamebirds such as pheasants. 
  2. Habitat loss is far and away the biggest concern for gamebirds (and other wildlife) in the Dakotas
  3. Predator control problems are expensive and ineffective, with a miniscule impact compared to dollar-for-dollar habitat conservation efforts.

I’ll end with one more driving factor for the long term…climate change. As noted above, conservation and management groups all noted TWO factors that had the biggest impact on gamebird populations..habitat, and weather/climate. The climate is changing…whether you “believe” in it or not.  What are the potential impacts on gamebird populations in South Dakota? Let’s look at Sharp-tailed Grouse populations in the state.  They are found from the southern to northern border in South Dakota, in much of the western half to two-thirds of the state. They are found as far south as the Platte River in Nebraska. What about the future?

Using projected changes in both land use (habitat loss) and projected changes in climate, this (wonderful!!!) study found that your grandchildren aren’t going to be hunting Sharp-tailed Grouse. Not in South Dakota anyway.  The top map below shows the “current” distribution of Sharp-tailed Grouse. The areas in red in the bottom three maps? Those all show areas where Sharp-tailed Grouse will be severely impacted by climate and land use change…with a bulls-eye right on South Dakota and northern Nebraska. Three climate scenarios are shown, with “A2” being the most severe scenario, and “B1” being the least severe. REGARDLESS of scenario, this research shows that SHARP-TAILED GROUSE WILL BE EXTIRPATED FROM THE SOUTHERN TWO-THIRDS OF SOUTH DAKOTA BY 2075.

Sharp-tailed Grouse - Tympanuchus phasianellusSo please, sportsmen…if you want to preserve your resource, do ALL of us some good. Predator control? NOBODY (other than our rather clueless governor) believe it’s an effective long-term solution. You want a big bang-for-the-buck? Petition Noem’s office for habitat conservation and preservation programs. Contribute to groups that foster habitat protection. That’s a “win” for all concerned, as it not only benefits Ring-necked Pheasants and reduces predation, but it helps non-game species as well.

And if you’re like me and have a son…and if you worry about his future…play the long game as well, and start paying attention to the long-term devastation climate change is going to have in the state.

Ring-necked Pheasant - Phasianus colchicus

A young Ring-necked Pheasant hanging out on a fence post. Do you want to preserve these birds, and also end up helping ALL wildlife in the state? Stop supporting this ridiculous predator control effort, and focus the state’s attention on habitat conservation.

Aug 11 2018

Climate Change is for the Birds

Author: DakotaBirder • Discussion: No Comments

This morning was one of the most bizarre birding trips I’ve taken in a while. The forecast was clear skies and low wind, a combination you need to take advantage of when it happens in South Dakota. I headed up to the Lake Thompson area in Kingsbury County, South Dakota, to shoot gulls, terns, shorebirds, herons, egrets…all the wonderful water-loving birds you find up there this time of year.

I wanted to arrive just before dawn, and given it’s a 1 1/2 hour drive, I was up and on the road quite early. I knew right away something was different. Even before the sun arose, the lighting was strange. There were clearly no visible stars in the dark sky, but yet I had no doubt it was indeed cloud-free.  We had a hint of this phenomena yesterday, but this morning it hit full bore…a sky full of smoke from the fires hundreds of miles away in the western US and Canada.

Not was I was expecting when I left this morning, and it certainly changed the types of photos I went after! As usual at this time of year, there were birds everywhere. However, even after sunrise, the light was so poor that it was difficult to grab any decent photos.  It wasn’t until about half an hour after sunrise when it started to get bright enough to shoot. It’s not often you can point your expensive camera right at the sun at that time of day, and not permanently fry your sensor, but the light was so diffuse this morning I certainly could.  I ended up settling down at a wetland area near Lake Thompson, trying to shoot the numerous Black Terns against the odd, but beautiful lighting.  Not a situation I’m used to shooting in, but I was able to get some photos I thought were “cool”.

I’ve been in South Dakota 25 years now, and lived at basically the same latitude down in southern Nebraska before that. Until the last few years, I just don’t remember fire seasons out West being SO bad, that our air here on the eastern side of South Dakota was this affected.  But last year too, on one rock-hunting trip, the air was so bad that my eyes were watering and I started wheezing a bit. Something has changed!  That something most likely is due to, or at least severely exacerbated by, climate change!

Climate change is for the birds. But at least for one morning, it made for some cool photos.

Black Tern (Chlidonias niger) - Flying through smoke-filled skies

Black Tern, flying through the reflection of a smoke-diffused sun. This is at LEAST half an hour after sunrise!

Black Tern (Chlidonias niger)Highway 81 Lakes and Smoky Sky

 

 

Aug 06 2018

Who’s to blame for climate change impacts? Environmental activists!!

Author: DakotaBirder • Discussion: No Comments
Senator Mike Rounds (R) - South Dakota

Our beloved former Governor turned Senator, Mike Rounds. Not only did he strongly advocate for the US to leave the Paris Climate Accords, evidently he found the REAL cause of climate change…environmental activists! I wonder if he also blames them for that massive bald spot and his ridiculous comb-over attempt.

The West is burning.  Scandanavia is sweltering. Ocean temperatures off the coast of California are the highest they’ve ever been. Clearly something is happening, right? A normal person would look at the evidence in front of them, believe their own eyes, and declare climate change to be humanity’s number one threat.  Those in the GOP are far from normal. Over the past week I’ve encountered at least two stories where those in the GOP aren’t blaming carbon dioxide levels or humanity for disasters striking the US. No, it turns out the REAL culprits are environmental activists themselves!!

The first story has been widely reported over the last day, when Orange Hitler tweeted “California wildfires are being magnified & made so much worse by the bad environmental laws which aren’t allowing massive amount of readily available water to be properly utilized. It is being diverted into the Pacific Ocean. Must also tree clear to stop fire spreading!” The “logic” behind the tweet? Trump evidently believes California’s environmental and water use laws that actually let rivers, you know…FLOW…are causing a lack of water, resulting in massive fire outbreaks in the state.  I prefer this gentleman’s take on the GOP logic:

California climate and water expert Peter Gleick tweeted that Trump’s explanation was “gobbledygook bullshit” and “unmitigated crap.”

Note I attribute a blanket “GOP logic” rather than just “Trump logic”, as he’s clearly not alone in his level of delusion. When taking my son fishing along the Missouri River this past week, I looked for news about water levels.  There are abnormally high water levels in the northern portions of the Missouri River, and as a result, they are releasing large quantities of water through the turbines at Oahe Dam in Pierre, South Dakota.  The resultant downstream flooding has caused an outcry against the Corps of Engineers for supposedly mismanaging the river’s flow.  There’s only so much the Corps can can do, as the water has to go somewhere, but former-South-Dakota-Governor-turned-Senator-yet-always-clueless Mike Rounds took it one step further. So what’s causing the downstream flooding, according to our resident super-genius?

Rounds thinks climate-change driven policy choices might have caused greater challenges in balancing the mainstem dam system’s electric power and flood control functions. Arguments based on climate change have led increasingly to adoption of wind power, Rounds said, and wind power production is not uniform, because the amount of wind varies.

Yes…it’s those damn climate change activists, insisting on wind turbines as an alternative energy source. Because of them, Rounds claims, it’s much more difficult to manage water flow through the Missouri River dams. And thus…CLIMATE CHANGE ACTIVISTS ARE CAUSING THE FLOODING.

I don’t know what’s sadder…the fact that our Nation’s supposed leaders have the gall to claim environmental activists are causing environmental disaster…or that evidently 40% of Americans are stupid enough to believe them.

 

Oct 22 2017

Scientists are Assholes

Author: DakotaBirder • Discussion: 1 Comment

I’m a scientist. I’ve been in my field for over 25 years, employed at the same place for the vast majority of that time. I’ve got a many peer-reviewed journal publications, and have been around science and science publishing long enough to realize that…

Scientists are assholes.

Scientists have egos. I think for any successful venture, including scientific research, you HAVE to have a healthy ego, a confidence in your own capabilities, and a confidence in what  you’re doing. But underlying the “confident” form of ego is the seedy underbelly of scientists acting like assholes.

The New York Times posted a wonderful piece that focuses on social psychology, but the same general storyline could have played out in any of the sciences. In short, a young scientist published an article in 2010 that summarized one piece of her research. That led to notoriety, and even a 2012 TED talk that become one of the most widely viewed talks ever. After basking in the glow of the work for a short time, other researchers began to question her methodology, and question her results. Even worse, it got personal, with scientists and science bloggers taking the young woman to task, making unfounded and hurtful accusations. In short, the young woman DARED to experience success…which triggered a backlash from other scientists, a group of human beings that love NOTHING more than to tear each other down.

Scientists are assholes. At least there’s a segment of the profession that act in this manner. Many of them have built careers not on perfecting their own new, original research path, but instead by tearing apart the work of others. Even in my own field, there are scientists who I am only aware of because of their published “bakeoffs”, assessing the collective work of OTHER scientists, and meticulously picking through the work to find (perceived) flaws.

Given my cynical nature, it’s not like being an asshole is restricted to the field of science. So why devote a blog post to trashing my own profession? To make a point about climate change science. Climate change skeptics are nearly ALL politicians…talking heads…pundits…but very rarely, actual scientists. Even the majority of “scientists” who do attempt to discredit climate science are not climate scientists themselves.  Most often they are from another field. The pool of real climate scientists that are skeptical that 1) the climate is warming, and 2) mankind is at fault is TINY.

Scientists are assholes. And yet among scientists, climate change discord is remarkably absent. In a profession where ego and competitiveness are sometimes out of control, I can think of no better evidence of the sound scientific basis behind anthropogenic climate change. IF there were any speck of credible evidence that the climate isn’t warming, or that mankind’s activities aren’t the primary cause, stories such as the one provided by the New York Times would be rampant. Scientists would be eagerly ripping apart each other’s work, trying to discredit not only the research, but the researcher him/herself.

 

Apr 20 2017

The economics of climate change

Author: DakotaBirder • Discussion: No Comments
Norfolk - Hurricane storm surge risks

A map showing downtown Norfolk and the surrounding areas, and likely storm surge inundation areas under different categories of Hurricanes. Should a category 4 ever strike the area, most of the region will be flooded. However, coastal flood risks in the area go well beyond the risk of hurricane-related storm surges. Coastal flooding events are becoming increasingly common as sea levels rise, with huge economic impacts on the region. Map Source: Source: Virginia Department of Emergency Management, Commonwealth of Virginia Storm Surge Inundation Maps.

This is the the week the Trump administration may announce their intentions to stay or abandon the Paris climate agreement. There’s some indication that Trump may actually be getting cold feet about abandoning the agreement. However, given the other moves the administration has already made, stating they’re sticking with the agreement may just be window dressing, as reversing Obama’s Clean Power Plan likely makes it impossible that the U.S. could actually meet the agreed upon levels of greenhouse gas reductions. With an administration full of climate-change deniers, it may not seem like there’s a lot of long-term hope that the U.S. will be a meaningful player in trying to mitigate the worst potential climate-change scenarios. However, there is hope…

The New York Times had a great piece yesterday about the Norfolk, Virginia area, and the potential impacts of climate change. What makes the piece wonderful is that it localizes the impacts of climate change and shows how it’s already changing people’s lives. Norfolk, like most coastal cities, is likely to be heavily impacted by climate change and the resultant sea-level rise in coming decades. In the case of Norfolk, however, those impacts have already arrived. Sea-level rises, coupled with sinking coastal land overall in the area, means that the relative sea-level is now 18 inches higher than it was at the start of the 20th century. As the story notes, locals have become accustomed to learning the “dry” spots for parking their cars, avoiding parking in areas where wind-blown tides may bring water inland. The impacts go far beyond the minor inconvenience of finding a dry parking spot, however.

As stated in the New York Times piece, Elisa Staton bought a house in the Larchmont-Edgewater area of Norfolk in 2005.  There were never any records that it had been flooded. Her flood insurance was reasonable, and although the house was within the 100-year flood zone, she wasn’t worried. In the last 10 years, her house has twice flooded. Her flood insurance rates skyrocketed, and the house she purchased for $320,000 was worth perhaps half of that original value. The story notes that flood insurance premiums are rising by as much as 25% a year, and that for every $500 annual increase in flood insurance cost, the value of a house goes down by about $10,000. Short-term remedies include “re-purposing” lower-level rooms to “low value storage space”…in effect reducing the habitability of lower-level rooms in order to get breaks on insurance premiums. Longer-term remedies typically involving raising the house and allowing for increasingly frequent coastal flood waters to flow under the habitable space of a home.  However, even those measures are likely doomed to fail, as relative sea levels in the area may rise by an astounding 6 feet by 2100.

So why did I say there’s some hope regarding climate change, after pointing out the damage Trumps administration has done to U.S. efforts to mitigate greenhouse gases? The current administration may be completely inept on climate change issues, but eventually, basic economics is going to force the hand of government.  The Norfolk story quantifies economic impacts for just one small coastal area in the U.S. In 2008, Norfolk hired a Dutch team (a country well-versed in dealing with coastal flooding and inundation) to develop a climate-change adaptation plan for the city. The price tag? At least $1 billion. That “100-year flood plain” that Elisa Staton’s house was found, where 2 coastal inundation events have occurred in just the last 10 years?  There is over $1 trillion in property in 100-year coastal flood plains along the eastern seaboard of the U.S.  The story does a great job talking about insurance and other economic impacts as well.

Economics.  That’s why there’s hope. Politicians are too short-sighted. As politics has become more partisan in the United States, governing for the long-term welfare of the people has been replaced by governing for the next election cycle.  Climate change impacts? When the next election is a year or two away, climate change is the last thing D.C. politicians worry about.  At a local level however?  With coastal home prices plummeting in areas like Norfolk, you can certainly imagine that local politicians have to address climate change and the resultant economic impacts in their area.  Local residents who feel their livelihoods and homes threatened by climate change will demand it.

That’s where there’s some hope, in the local-level, aggregate response to the economic impacts of climate change. As stories like Norfolk’s become more and more common, the sheer economic impacts of climate change will have to be addressed at the larger state and national scales. Business interests increasingly recognize the devastating impacts climate change may have on their bottom dollar, and realize they can’t ignore the issue.  Our own Defense Department recognizes the threat of climate change to disrupting populations across the globe and introducing instability. At some point, D.C. politicians are going to have to follow suit.

 

Mar 13 2017

Meteors in your Gutter, Pollinating Crops with Drones, and more science news – Week of March 12, 2017

Author: DakotaBirder • Discussion: No Comments

This week, let’s try something novel…science news, sans politics.  It seems that politicians in this country have decided we can live without science, so for one week, I’ll try a “news” post where science avoids politics.

Long-horned Bee - Melissodes

A Long-horned Bee, doing what bees do best…collecting nectar and in the process, distributing pollen. If one Japanese researcher has his way, we could soon be using drones to augment nature’s pollinators. A personal comment…let’s hope this never comes to pass.

Who Needs Honeybees when we have Drones? — A first…TWO drone-related stories in one week! While the story above about using drones to acoustically sample birds may seem practical, I admit I don’t see much of a future for this application!  Eijiro Miyako, a chemist in Tsukuba, Japan, was trying to make an electricity-conducting gel in 2007, an endeavor that wasn’t working. His concoction was stored, until 8 years later when he dropped the jar while cleaning out a drawer. Miyako certainly thinks differently than I do, because upon cleaning up the sticky substance, he wondered, “could this be used to pollinate plants”? The decline of honeybees and other pollinators is well-noted, something of potentially devastating consequences to not only natural ecosystems, but to our very survival, given the need to pollinate crops.  Miyako started working with methodologies to pollinate crops, starting out by coating ants with his sticky gel to see if their movements would attract and distribute pollen. It kind of worked, but didn’t seem practical, so he eventually started working with drones.  The drones have a fuzzy material that collects pollen and can redistribute it when the drone brushes up against another plant.  His eventually plan? Build a fleet of 100 or so drones, use GPS and artificial intelligence, and set them loose in a field to pollinate the crops. Well…I guess we all need dreamers, and given how science works, who knows what practical application may come of Miyako’s work?  But hey, how about instead of developing drone pollinators, we instead focus on preserving the natural pollinators we have now?

Norwegian Gutters Clogged with Meteors!! — Jon Larsen, a Norwegian jazz musician, has an interesting hobby.  He’s devoted much of his free time in recent years to looking through material in gutters, downspouts, and drains, searching for extraterrestrial visitors.  Tons of material from outer space enters Earth’s atmosphere every day, much of it microscopic. Larsen has searched through debris in urban settings in search of these microscopic visitors.  His passion has been published in the journal Geology, with a paper that discusses the identification of over 500 “large micrometeorites” from rooftops and other urban settings. Larsen has learned the typical characteristics of micrometeorites, stating “Once I knew what to look for, I found them everywhere”.  Next time you’re up on the roof, cleaning leaves out of those gutters, do it with a smile and a sense of wonder, because it’s extremely likely that you’re cleaning up cosmic debris along with those leaves.

Normalized Difference Vegetation Index - Great Britain

Normalized Difference Vegetation Index (NDVI) for Great Britain, showing relative “greenness” of vegetation at the time. Researchers are studying linkages between NDVI, tree ring width, and volcanic activity to see if vegetation is responding to pre-eruption conditions. Potentially, such changes could be used to help predict an eruption.

Predicting Volcano Eruptions from…the greenness of trees? — I believe this is a poorly written article, but the premise behind it is VERY cool for a scientist like myself who works with satellite imagery.  The title of the story is very poor and somewhat misleading, stating “Can tree rings predict volcanic eruptions”? The story focuses on the work of scientists at the Swiss Federal Institute for Forest, Snow, and Landscape Research. In 1973, scientists noted an anomaly on satellite images along Mount Etna’s flank, a streak of trees that were greener than normal.  With satellite imagery, we can measure a “Normalized Vegetation Difference Index”, a measure of live green vegetation.  NDVI measurements in 1973 satellite observations were high along a streak on the volcanos flank, and less than a year later, a flank eruption occurred right along that very streak.  These scientists hypothesized that measuring tree rings from 1973 would also show an anomaly, and thus the title of this story that tree rings could “predict volcanic eruptions”.  However, the actual results showed no difference in tree ring width during that time frame. Given the relationship between tree ring width and how “good” a year a tree has had, I can see why continued research is warranted to try to find relationships between increased NDVI greenness, and tree ring width, and see if other areas have experienced changes prior to a volcanic eruption.  As it is, there’s not much in this initial research that proves a strong linkage.

Spying on Birds with Drones — On-site surveys of birds is a time-intensive and potentially expensive endeavor if trying to systematically survey birds across broad regions. Researchers at Gettysburg College in Pennsylvania investigated the use of drones for conducting acoustical surveys of birds. They tried flying a drone and extracting acoustical information from a recorder on the drone, and found that the method was able to sample bird presence for about as large a region as a human observer performing a survey.  They have some kinks to work out, primarily related to the noise of the drone masking some of the low-frequency bird noises (think cooing of a Mourning Dove), but they believe technological innovation will soon make drones quieter and more efficient at sampling bird acoustics. I admit I do kind of roll my eyes when I hear people talking about trying to use drones for photography, and for science applications, because in many cases it seems like a stunt more than an actual practical application.  Gettysburg College may be proving me wrong, as this actually does sound like an interesting use of drone technology.

American Chestnut - Wild Survivor

One of the VERY few wild, mature American Chestnut trees left in the wild. Trees such as this may be resistant to blight, and are being used in efforts to develop a blight-resistant stock for eventual transplantation in the wild. Genetic modification is also being done to introduce Chestnut Blight resistant genes in tree stocks.

American Chestnut, Returning to a Forest Near You? — I often wonder what it would be like to travel back in time, to visit locations before they were touched by man. In the United States, the entire eastern half of the country was once dominated by forest land. While forest cutting started in earnest in the 1800s and even earlier in some locations, remaining deciduous forests by 1900 were still populated by 3 to 4 billion American Chestnut trees. It is estimated that one-quarter of trees in the Appalachians were American Chestnuts.  The American Chestnut was a prolific nut producer, with mast from the trees supporting deer, turkeys, bears, and other wildlife, including the now extinct Passenger Pigeon.  In 1904 a fungal blight was discovered, a disease that eventually wiped out nearly every wild American Chestnut. Asiatic Chestnut trees were imported into the country, but with them came an Asian bark fungus that was lethal to American Chestnuts. The disease spread rapidly, killing every American Chestnut tree in its path.  It is now estimated that fewer than 100 trees of any size are left in their former range. Root systems of surviving trees still send up shoots, but the blight infects the trees as they mature, resulting in practically no American Chestnut stems over 10-years old in the wild.  This story is focused on efforts to genetically modify the American Chestnut to include resistance to the blight. 30 years of research has resulted in the introduction of a gene from wheat that makes the trees able to withstand the blight. They hope to gain approval to publicly distribute the trees within 5 years.However, it will still be a long process to repopulate Eastern forests with American Chestnut. The researchers want to cross-pollinate the blight resistant trees with native wild tree stock. Half of the offspring will be blight resistant, and genetic diversity will be much improved over the current research tree stock.  We’re at the start of a VERY long process to restore the tree to the wild, but hopefully our great-great grandchildren will be able to enjoy the same Eastern forest trees that existed prior to 1900.

10 years until “Snowball Earth” — I admit my scientist side geeks out when I read a story like this, as it’s just so cool to think of the physical changes that have, can, and will again happen to our Earth.  Of course the absolutely catastrophic consequences for mankind put a bit of a damper on that excitement!  Harvard scientists have pinpointed the circumstances that led to “Snowball Earth”, a period about 717 million years ago where the Earth was covered in ice from pole-to-pole.  Models suggest that the climate destabilization that plunged the Earth into polar hell could have happened in a blink of an eye in geologic time. Massive volcanic eruptions back then could have ejected enough aerosols into the atmosphere in just a 10-year period to initiate the rapid freeze.  Don’t worry, it’s not a single volcanic eruption that’s capable of such a long-term change, but instead the kind of massive eruptions that mankind hasn’t experienced in our history. 717 million years ago, it was a string of volcanic eruptions across what’s now Canada and Greenland that set off the freeze.  As I said, from a scientific standpoint, fascinating to think what could happen, but it also points out the fragile balance of our climate system.  “Snowball Earth” happened because of runaway cooling and feedbacks that amplified and accelerated the cooling, primarily with increased ice increasing reflectance of solar radiation in a self-reinforcing feedback loop.  Right now we’re playing a game of “chicken” with our climate system, doing the exact opposite, and removing that ice in a self-reinforcing feedback loop that’s amplifying warming.

Snowy Bison

The Bison, invasive species that forever changed North America! Well, if we were around about 150,000 years ago, they would have been considered an invasive species, one that transformed grassland ecosystems of North America.

Bison Contributing to Mammoth Decline?  — OK, my chosen title here doesn’t reflect the purpose of this research, but after reading the story it did make me curious…did Bison contribute to the decline and eventual extinction of the Mammoth? The story used DNA analysis to establish that the ancestors of North American Bison first arrived between 130,000 and 190,000 years ago.  As the story notes, in this case, Bison were the invasive species, rapidly colonizing North America and forever changing the grassland ecosystems of the continent.  It does make me wonder…if not for the establishment of the Bison as a primary grazer in North America, would the Mammoth and other North American megafauna have been better positioned to withstand climate change and the establishment of man? Interesting story, and a story that shows that not all “invasive species” are those that are introduced by mankind.

Managing Diabetes with your Sweat — Especially as a family that deals with the consequences of Juvenile Diabetes, we’re quite familiar with the frequent finger prick to check glucose levels in blood. Researchers in South Korea have developed a prototype glucose sensing and insulin delivery device that looks like an arm cuff.  Instead of measuring blood glucose, it measures glucose in sweat. It’s not just these guys, there are also other researchers who are looking at measuring glucose levels in tears. There certainly have been many technological advances and devices for testing and treating diabetics, innovations that are certainly welcome! I just wish there were some real advances on actually treating the disease, and not just the symptoms.
 
Feb 22 2017

Spring Has Sprung! It’s February 22nd!

Author: DakotaBirder • Discussion: No Comments
Snow Goose Migration

Snow Geese migrating through the area. We started seeing Snow Geese in small numbers over 10 days ago. Starting in the latter half of last week, huge flocks started moving through. Just a few days after Valentine’s Day, when normal HIGH temperatures should be around freezing, and we’ve got a major migration going on. That’s not the only sign of an early spring…or of global warming.

Ignore for a moment the forecast.  We’re supposed to get hammered with snow tomorrow, with a full-fledged blizzard watch.  We’re likely to get a foot, and possibly more, over a 24 hour period starting tomorrow.  It’s not supposed to get very cold though, with high temperatures of close to 30…very close to “normal” for this time of year.  Disregarding what’s likely to happen tomorrow though, it’s been anything BUT a “normal” winter in South Dakota.

Right before Valentine’s Day, people started noticing small groups of geese passing overhead.  We can get truly massive flocks of Snow Geese that move through in the spring, and we also get large flocks of migrating Canada Geese and Greater White-fronted Geese.  What’s NOT normal is to start seeing the goose migration in mid-February!  With incredibly warm weather in February (It was over 70 degrees in Sioux Falls yesterday, and nearly 65 today, more than 30 degrees above normal!!), the trickle of migrating geese has become a torrent, with truly massive flocks of birds moving through the area.  Normally at this time of year, I’m hunkered down in the cold, with my local birding restricted to the few Dark-eyed Juncos, Downy Woodpeckers, or American Goldfinches that might visit my feeders.  This year I’m already enjoying the sights and sounds of thousands upon thousands of VERY early migrants.

The warm weather and the migrating geese aren’t the only signs of an incredibly early “spring”.  Given that my livelihood is based on the use of satellite imagery for mapping, monitoring, and ultimately predicting what’s going to happen on the earth’s surface, I follow a lot of other similar work, including data provided by the National Phenology Network.  “Phenology” is “the study of cyclic and seasonal phenomenon”, and the National Phenology Network examines plant and animal phenology and how it relates to the environment.  From a vegetation standpoint, we can  use satellite imagery to assess the phenology of growing vegetation, tracking the timing of spring “green-up”, peak vegetation activity in the summer, and the senescence/browning of vegetation in the fall.

The National Phenology Network produces a data product called the “Spring Leaf Index Anomaly”.  The measure compares satellite-based measurements of spring “green-up” of vegetation compared to the historical green-up across the United States. The latest update was a map of conditions released today, as shown here:

National Phenology Network - Spring Leaf Index Anomaly

The “Spring Leaf Index Anomaly” released today. Vegetation is already greening up as far north as Kansas City, a rate that is over 3 weeks ahead of when things normally start to green up. It’s such an anomalous, warm late winter so far that the legend is going to need some revising!!

We’re SO early in terms of vegetation green-up that we’re literally off the scale!  The legend for the Spring Leaf Index Anomaly shows how early or late spring green up is compared to historical, but only goes out to a 20-day departure from normal.  We are almost a full MONTH ahead of schedule for many parts of the U.S.

Warm weather, migrating geese, vegetation green-up from satellite imagery…it doesn’t stop there!  Daffodils are coming up around Sioux Falls!  In FEBRUARY!  Talking with colleagues from the east coast, daffodils and tulips started coming up a few weeks ago already!  We’ve still got plenty of porous, honeycombed ice on many of the lakes around here, but there’s quite a bit of open water, particularly with all the rivers and streams now unfrozen.

I’m still baffled how any rational human being can choose not to believe that climate change is occurring.  Even for the right-wing nut jobs who have long denounced climate change as some kind of incredibly elaborate, world-wide hoax that evidently involves all scientists on the planet, there’s been increased recognition that something is happening.  Well…duh!! Those same climate-change deniers have increasingly accepted that climate change is occurring, but refuse to believe that human beings that are the cause.

As a scientist, at this stage…frankly I don’t CARE if people believe we’re the cause.  The ship has already sailed…we’re already FAR down the path to severe climate change, given that we’re now over 400 ppm of carbon dioxide in the atmosphere.  There’s just no concerted, global, political, social, or MORAL will to make the sacrifices necessary to slow down climate change, so at this stage…SCREW the cause of climate change.  It’s HERE.  It’s HAPPENING.

If I could say one thing to the politicians who don’t want to acknowledge our role in changing the climate…AT LEAST SUPPORT ACTIVITIES THAT MONITOR CLIMATE CHANGE, and HELP US TO ADAPT TO WHAT’S COMING.  REGARDLESS of what you think is causing climate change, CLEARLY IT IS HERE.  The environment around is, the creatures within that environment, are necessarily adapting to the rapidly changing conditions.

The million dollar question is now if we can do the same.

Jan 24 2017

How much carbon dioxide in the atmosphere? Ssshhhhh….it’s classified

Author: DakotaBirder • Discussion: No Comments
Atmospheric Carbon Dioxide

Trends in atmospheric carbon dioxide from pre-industrialization until today. We’ve gone from a baseline of 280 ppm to 404 ppm today, a level of atmospheric CO2 not seen in over 600,000 years. It’s irrefutable evidence of the impact man has had on the atmosphere and our climate. And now…evidently under the Trump administration, the level of atmospheric CO2 is classified information.

Science is in the news again!  Front page of the Washington Post, New York Times, and other major media outlets!! No, we haven’t discovered extraterrestrial life.  No, we haven’t found a cure for cancer.  In fact, there haven’t really been any earth-shaking research results published  No, the science-related stories that are capturing the front pages of major newspapers are those related to the muzzling of scientists in the federal government under the Trump Administration, after only 5 days.

It started on the 2nd day of the Trump administration.  Information on climate change was deleted from all White House website pages on Saturday, along with other issues that evidently aren’t important any more, such as civil rights.  Who needs to worry about civil rights, when we’re headed back to how it “should” be, with hairy old white men in charge of everything?  It’s all good!  In place of the climate change and LGBT information?  Melania Trump’s jewelry line. Yes, that’s right, a sales pitch for Melania’s jewelry literally is more important to the new administration than climate change or civil rights, and occupies space on the White House website.

Science and environmental research and reporting in the federal government was immediately under attack on other fronts as well.  This week Trump issued an executive order freezing all research grants and contracts at the EPA. All contract and grant awards, as well as all “task orders and work assignments”, are to be “temporarily suspended, effective immediately”.  It’s clearly the first step in dismantling regulatory activity at the EPA, with the Trump administration believing that regulation hinders business activity.  “Regulation”…you know…making sure you and your family don’t DIE or get sick just by breathing, drinking, and eating.  Minor little things like that get in the way of rich people making even more money, and we simply can’t have that.

Other federal agencies were instructed to halt “external communication”.  The Department of Health and Human Services has been instructed not to communicate “with any public officials”.  EPA was told to halt all press releases, blogs, or social media posts.  The U.S. Department of Agriculture was told to stop releasing any “public-facing documents”.  In other words, federal agencies have been instructed by the Trump administration to stop communicating with the public, to stop releasing results of the work that is done with taxpayer dollars.

Social media posts and press releases are a primary means by which federal agencies communicate with the public, and some bold renegade Feds today pushed the envelope on what’s now “allowed” in the Trump administration.  I say “push the envelope”, when in fact, all they did was do what they’ve done since social media became popular…they DARED to report scientific fact, without any inherent political message.  Badlands National Park in South Dakota sent out a series of tweets earlier today, simply providing the facts on what’s happening with our atmosphere and climate change.  Here’s a sampling of their tweets from the day:

National Park Service - Badlands Tweets

Pretty innocuous stuff, and pretty much the same kind of science information that’s tossed out on social media by many federal science agencies.  The response to DARING to state how much carbon dioxide is in the atmosphere? After a few hours, all climate-related tweets on the Badlands site were deleted, without explanation. Was there some violation of federal policy with the release of this mundane, extremely well-known, and well-verified data? As this story from Salon.com notes,the following rule of thumb generally applies to the disclosure of information by federal employees:

A public employee is allowed to speak publicly or share information with the media, if that information is not considered a government secret or classified information.

Evidently stating how much carbon dioxide is in the atmosphere is now a “government secret” or “classified information”.

The public clearly has a right to know how their tax dollars are being spent.  There were several reported cases of the Bush administration editing climate-related research results, changing phrasing or eliminating certain results to downplay the expected impact of climate change. While the Bush administration was openly criticized for their attempts to downplay climate-change impacts, those interventions were in fact relatively infrequent.  Science research in the federal government, including climate-change research, has generally been considered public domain information, and attempts to muzzle or modify research results have been few and far between.

The actions of the Trump administration in just the first 5 days are a warning shot across the bow for scientists in general, a warning that science is now subject to the same vagaries of politics as is the rest of the federal government.

Jan 18 2017

Killer Grizzlies, Ice Twisters, and more – Science, Nature, and other news

Author: DakotaBirder • Discussion: No Comments

Killer Grizzlies, “Ice Twisters”, and more…Science, nature, and other news of the week. Click on each headline for the story itself.

Grizzly Bear - Ursus arctos

Taken this morning, A Grizzly Bear, lurking JUST outside the Brandon Valley Middle School attended by my son. STAY BRAVE, MY SON!! We finally have a leader…nay…a HERO…who will stand up for you and your fellow children.  No longer will you cower in fear each day at school, wondering if…wondering WHEN...the next child will be taken by a Grizzly Bear. Prepare for firearm training, my son! Soon you will be able to defend yourself!

Grizzly Bear Scourge Killing Thousands of American Children — With all the testimony this week of potential Trump Cabinet members, the most insightful, meaningful words of wisdom came from Betsy Devos, the woman who (shockingly) is about to lead the Department of Education.  When asked about her stance on guns in schools, Devos first deflected, stating that it should be a local choice.  When pushed, Devos spoke of the one issue that wasn’t discussed NEARLY enough during the fall campaign…the deadly scourge of Grizzly Bear attacks on our children at school.  Yes, that’s right folks, FINALLY we have a Trump Cabinet member who “gets it”, who understands the daily struggles of everyday Americans. Who hasn’t worried about Grizzly Bear attacks when dropping off their child at school in the morning? Betsy, we love you.  You’ve proven you are one of US, everyday Americans struggling with everyday, life-or-death problems.  Hopefully under your watch, teachers, or…better yet…children THEMSELVES will be allowed to carry semi-automatic weapons to combat the Grizzly Bear scourge.  God bless you, Betsy Devos!

Cat toll on wildlife tallied – We had a neighbor with a cat that started showing up on their front step.  They adopted it, although for the much of the time, they kept it as an outdoor cat. Every night it would be out on its own, and often during the day as well.  It was a sweet cat! It was also an evil, bird-killing machine that was seemingly always in our yard. There would be many, many times I’d look out our sun room at the bird feeders, only to see the cat crouched and hiding by a nearby bush. Over the years, the visits to our yard became less frequent, either because 1) it was scared to death of me chasing it out of the yard again, or 2) it progressively got fatter and less agile.  He took a toll on birds in my yard.  I often witnessed him killing a bird, and other times, I’d just find the aftermath, with a pile of feathers or a dead mangled body. One cat, one yard, and likely many dozens upon dozens of kills.  So what is the toll of cats on wildlife?  As this story notes, a wildlife rehab group in Virginia tallied cat-related animal injuries over the years, and found they treated over 80 species that had been attacked by cats, including over 60 different bird species.  This past summer, the neighbor cat disappeared one day, as it didn’t return home after (yet another) night left outside on its own.  I love what pets bring into a home, but admit I was NOT fond of the way the neighbor cat was treated, and what it was allowed to do. Leaving it outside all the time ended up costing it its life, but it also ended up costing the lives of countless small critters over the years.

Tornado - 1884

What’s thought to be the world’s oldest photo of a tornado, taken in 1884. This photo always terrified me, ever since I saw it as a kid. It just looks…evil. And hey, GREAT! THANKS SCIENCE! In addition to every other way a tornado can kill you, now we also know that the inside of a funnel is quite cold! “Ice Twisters”, the SyFy movie, may have actually been a documentary!

Ice Twisters!! — Several weeks ago, my son and I were flipping through the channels, and as we passed the SyFy channel, we saw a movie called “Ice Twisters!” was on.  Typical SyFy movie…government research gone wrong, with drone-related atmospheric research somehow resulting in deadly “Ice Twisters” that were ravaging the landscape. In the movie, the cause of death for those impacted by an Ice Twister wasn’t necessarily wind…no…they froze to death!  Yes, twisters that were THAT cold!  Well, it turns out there’s a hint (the slightest hint) of truth in the show.  The story goes back to 1955, when three employees from a radio station in Nebraska were taking cover from a tornado in the basement of an old stone house. The vortex passed directly overhead, and as it did so, the structure above was blown away.  The three people in the basement noted the difficulty in breathing as the tornado passed overhead, but also felt the temperature dropping very sharply.  Researchers studying the case found that the temperature likely dropped from around 27° Celsius to 12° as the funnel went overhead.  The drop in temperature and the difficulty they had in breathing were related. The density of the air in the funnel would have been equivalent to being at nearly 30,000 feet in elevation, and as warmer, denser air is sucked into low pressure of the funnel, the expansion causes the large drop in temperature.  Touche’, SyFy, Touche’.  Never again will I make fun of your (admittedly sometimes entertaining) movies.  Ice Twisters was simply a movie ahead of its time, ahead of the science behind it.

Move over “Polar Vortex”! Now we have “Atmospheric Rivers” — I just love when the mainstream media gets excited and jumps all over a “new” scientific phenomenon. A few years ago, somebody put a label of “Polar Vortex” on the same kinds of cold snaps the U.S. has always experienced, evidently deciding that just calling it “winter” as we always have wasn’t exciting enough.  Today, I see we have a new entry in the journalistic annals of creating new and exciting ways to describe phenomena that have been around forever. A very significant precipitation event did just recently occur in California, but the same kind of event has occurred countless times throughout history.  The term “Atmospheric Rivers” itself is evidently old, mentioned by a couple of researchers back in the 1990s. Other terms for it in California have been the “Pineapple Express” or “Hawaiian Express”.  Reading this story, however, and you’d think it was the first time such a phenomenon had been discovered or discussed.

February 2016 Temperature Anomalies

An image that shows global temperature anomalies in February of 2016. February was the most “anomalous” month in history up to that point, with the greatest departure from the “normal” for any month that had ever been measured. 2016 as a whole ended up setting yet another global temperature record. Leading the way…much of the Arctic. This graphic shows a temperature anomaly of nearly 12° for much of Arctic, but even greater departures from normal were found this fall and early winter.

3rd straight year of record global temperatures — For the first time ever, we’ve now had three straight years where all-time global temperature records have been broken. As stated by Gavin Schmidt of the Goddard Institute for Space Studies, ““What’s going on in the Arctic is really very impressive; this year was ridiculously off the chart”. Parts of the Arctic were 20 to 30 degrees (Fahrenheit) above normal for much of the fall and early winter, including days with temperatures hovering at or above freezing even at the North Pole. Globally, levels of sea ice have never been lower.  Irrefutable evidence of the continued onslaught of climate change…not that more evidence is needed at this stage, but it comes at a time when a new incoming President and his Party are about to take power in Washington D.C.  Which leads into…

Mixed bag for Trump’s Cabinet on Climate Change — Not a single story, but a collection of stories related to confirmation hearings for Trump’s Cabinet members this week. First the good…incoming Secretary of the Interior, Ryan Zinke, openly disagreed with Trump’s statements on climate change.  He stated “The climate is changing, and man is an influence”, certainly welcome words from a man tasked to manage the Department that oversees Federal lands and natural resources.  Responses related to the issue of climate change were more reserved and mixed from other Trump nominees.  Scott Pruitt, tasked to lead the Environmental Protection Agency said “I do not believe climate change is a hoax”, but he stopped short of saying man was the major cause, or that we need regulation and change to mitigate the effects. Given that EPA is the Federal Agency that can potentially regulate greenhouse gas emissions, it’s not comforting to see a lack of conviction about regulatory action.  The aforementioned Betsy Devos, who could very well be in charge of the Department of Education (GOD I hope not), didn’t specifically comment on climate change in her confirmation hearing, but did offer a simple statement of “I support the teaching of great science“.  Note the word “simple”, a statement that could be attributed to MUCH of her testimony this week.  It’s not encouraging when the Secretary of Education is clearly not even aware of the many programs her agency is responsible for.  Rex Tillerson, an oilman slated to become Secretary of State, did state that the climate is changing and that greenhouse gases are a cause. However, he also stated that the science was murky, saying “The increase in the greenhouse gas concentrations in the atmosphere are having an effect. Our ability to predict that effect is very limited.”  Tillerson’s comments were perhaps the most representative of what’s likely to happen in a Trump administration.  In the face of overwhelming evidence that’s slowly convincing even a scientifically illiterate American public, the stance of many Cabinet members was to recognize climate change as “real”, yet simultaneously state the science is very uncertain. In short, they’re setting the stage to potentially monitor the situation, but not do a damn thing about it.

Sit on your butt and watch your life drain away — That’s the basic message of new research that assessed the biologic “age” of cells, related to the level of physical activity.  Telomeres, little caps on the ends of DNA strands within a cell, gradually shorten as a person ages. Telomeres protect your chromosomes, and a shortening of telomeres is associated with cell “aging”, and increased likelihood of diseases including diabetes and cancer. Interesting study, and one of the first to take this form of measurement and connect it with activity levels.  That’s the price of blogging, I guess…sitting here for hours trying to come up with interesting and clever stories, all while my damned telomeres shorten by the second.

Eating and Sitting

A family sitting AND eating at the same time. As science has proven this week, this could be one of the most dangerous aspects of American life. This, or rampaging Grizzly Bears around our children’s schools.

Don’t eat, live longer — To riff off of Charlton Heston…Damn you, science.  DAMN YOU ALL TO HELL!!  FIRST you have the story above about deadly Ice Twisters, amplifying my already well-ingrained fear of tornadoes.  Then you have the story of your DNA rotting away while you sit still.  And now, this story, noting that restricting calories is one way to ensure a longer life. Survival and health of rhesus monkeys was found to be significantly higher as caloric consumption was reduced.  Great.  What.  The.  Hell.  My favorite pastime is lounging on the couch in the basement, hiding from tornadoes, eating a bowl of ice cream.  Little did I know how much I was putting my life in danger. As a scientist, and as an avowed atheist, I do find it incredibly fascinating that so many things that human beings crave in life, are inherently bad for you.  Eating fatty and sugary foods, relaxing and taking it easy.  From an evolutionary and biologic standpoint, does that make sense?  Does it make sense that the very things we crave can kill us? How does simple biology explain that?  It’s times like this where my belief in a “god” may not be reinforced, but it does reinforce my belief in a “devil”.

10,000-km long “wave” on Venus — The Akatsuki spacecraft captured a spectacular image of Venus in December, marked by a massive, vertical “smile” that stretched nearly pole-to-pole.  The 10,000-km long feature is thought to be a “gravity wave”, which would make it the largest gravity wave observed in the solar system.  It’s thought to have developed from air movement over mountain ranges on the surface of Venus, with the feature then propagating higher into the thick Venetian atmosphere. However, such a feature isn’t easily explained by the current understanding of the surface of Venus and near-surface atmospheric conditions. Either some other explanation is in order, or our understanding of the surface/atmospheric interactions on Venus needs to be reevaluated.

 

Jan 08 2017

In The News – Week of January 8th

Author: DakotaBirder • Discussion: No Comments

Science, nature, and other miscellaneous news for the week:

Binary Star Collision

An artist’s impression of a collision of the two stars in a binary star system. In an unprecedented prediction, two stars are forecast to collide in 2022, potentially lighting up the nighttime skies for several months.

Cosmic collision coming in 2022 — The two stars that are found in a binary star system called KIC9832227 have been forecast to collide in 2022, an unprecedented forecast that, if true, could provide some real celestial fireworks. Scientists are using past observations of collisions from a binary star pair to predict the 2022 collision.  In a past collision, scientists noted that the relative orbital speeds of the two stars sped up in leading to the actual collision, a phenomenon that is currently being observed in KIC9832227.  The actual collision has already occurred, but because the star system is 1,800 light years from earth, the light of the collision won’t be visible until 2022. 1,800 light years is actually relatively close in cosmic terms, which means we could be in for a bit of a show in 2022. The two stars are currently too dim to be seen by the naked eye, but it is thought that for several months, the new star created by the collision of the binary stars will be among the brightest features in the nighttime sky. Along with the total solar eclipse coming to the United States this August, there are some exciting cosmic events happening in the next few years!

Extreme tornado outbreaks increasing in recent decades — The most extreme tornado outbreaks in the United States have been on the increase in recent decades. Outbreaks, defined as 6 or more tornadoes occurring in a relatively short time span, are responsible for the most extensive property damage and loss of life.  According to the research, the largest tornado outbreak occurring in 1965 would have had around 40 tornadoes, while today, the number of expected tornadoes might double to 80.  I’m a bit skeptical of studies that deal with numbers of tornadoes.  We’re so much better at observing tornadoes now compared to several decades ago, both because we simply have a much larger population, but also because we have the technological tools to help us monitor tornado occurrence.  Any empirical record of tornado occurrence is undoubtedly biased towards the present day, in terms of the number of tornado observations.  Still fascinating research. The authors don’t make the case that the increase may be linked to climate change, stating that they found outbreaks are most strongly related to a measure called storm relative helicity, a measure that’s not been predicted to increase under climate change. However the authors have a bit of a “diss” towards climate science, stating that it’s hard to tell whether climate change plays a role “given the current state of climate science”.

Costa's Hummingbird - Calypte costae

A Costa’s Hummingbird male in flight. Scientists have found a remarkable adaptation in the visual motion part of the brain, a characteristic that may enable the rapid and precise aerial acrobatics of hummingbirds.

Seeing like a hummingbird — We’re animals…smart, sometimes amazing, sometimes incredibly annoying, but we share the same biological characteristics as most other animals on the planet.  Nearly every 4-limbed animal on the planet has a part of the brain that focuses on the processing of visual signals related to motion. The processing is focused on motion in a direction that comes from behind a creature…a very useful adaptation for detecting and responding to an attack from behind, for example.  Scientists have found that hummingbirds process motion-related visual cues much differently than other animals.This part of the brain in hummingbirds is larger than in other birds, and unlike other birds, individual neurons  are all tuned to focus on motion in different directions.  It is thought that this enables the amazing aerial acrobatics flying hummingbirds are capable of, as they can quickly process motion cues and adapt flight direction very quickly.

Media in a tizzy over giant iceberg — A check of science-news websites over the past week has shown many stories of the imminent crack-up of a part of the Larson C ice shelf in Antarctica.  It is a dramatic event, as a 60-mile long, 300-foot wide crack has split a part of the ice shelf.  Assuming the crack continues to grow, an iceberg the size of Delaware (!!) will break off.  It’s certainly a cool event, and one the media can sink its teeth into given the “cool” factor.  Of course the angle the story is written about often focuses on climate change (particularly in the mainstream media), but it really is hard to tell the role of climate change.  What IS dramatic is the continued thinning of the ice shelf overall, the incredible loss of ice mass in Greenland in the last decade, or the loss of sea ice in the Antarctic, event that are all definitely related to climate change. However, it’s tougher for the media (and people in general) to recognize the slow, inexorable march of climate change, versus dramatic events such as the Larson C crack.

Breathing option in Beijing — Air quality has been so bad in Beijing in recent years that officials recently established an “environmental police squad” to crack down on illegal burning and other contributors to the poor air quality. Additional measures announced this week include cutting coal-fired power production by 30% this year, revamping the most highly polluting factories in the region, and restriction pollution levels from vehicles in and around Beijing.  Air you can’t breathe, water you can’t drink…that’s what happens when you put economic growth over the environment, over human health. Keep that in mind when Trump and the environmentally hostile Congress start putting in “business-friendly” policies in the coming months.

You have a new body organ! — Have you had your doctor check your mesentery lately?  Have you even VISITED your local mesentery specialist? Well, probably not.  Medicine knew of the these structures in the digestive system, but they didn’t fit the definition of an organ because it was thought they were distinct separate fragments and not one continuous unit.  What bothers me about this article? This statement…from J Calvin Coffey, who “discovered” its an organ, stating this discovery “opens up a whole new area of science”.  Just because they discovered it’s one piece, not several pieces? Just because it fits the definition of an organ, it’s a new science?  The categorization doesn’t affect actual function of the organ.  This all goes with my “in the news” from last week, and how much of the human existence is defined by how we categorize the world around us.

Hagfish

A hagfish, a creature that evidently has the capability to evade shark attacks thanks to its loose saggy skin. Perhaps being ugly and slimy has its advantages.

Escaping a shark attack with “loose skin” — Ever wonder how a hagfish escapes a shark attack?  Well, neither have I. Hagfish are kind of disgusting looking things, akin to a lamprey or slimy eel.  Scientists (well, these scientists) wondered how hagfish escape when sharks attack.  They have a “slime defense”, emitting a cloud of slime that repels an attack, but that’s usually after a shark gets in a bite.  Scientists found it’s their very loose skin that makes it difficult for a shark’s tooth to actually penetrate into flesh, allowing them to react to attack without a fatal wound.  You DO have to give these guys points for creativity though, with their creation of an “indoor guillotine” that they developed to drop shark teeth into hagfish carcasses.

Chicken intelligence — Not a lot of bird-related science news this week, but there was this piece about the intelligence of chickens.  They’re not a bird you generally think of as being that intelligent, although when my son and I visited Reptile Gardens near Rapid City last summer, they had a trained chicken that came roaring out on cue and stole dollar bills from an unsuspecting audience member.  Evidently this research group felt the need to come to the defense of the poor, intellectually maligned chicken.  They determined that chickens are smarter than  you think that they have distinct social structures (a sign of intelligence) and even an ability to deductively reason.  A quote from the study lead:

“A shift in how we ask questions about chicken psychology and behavior will, undoubtedly, lead to even more accurate and richer data and a more authentic understanding of who they really are,” says Marino.

I can’t say as I’ve ever thought about chicken psychology.  But I am thankful that soon I’ll be able to get “a more authentic understanding of who they really are”.  🙂

 

%d bloggers like this: