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Earth United States

Mass Die-Off of Birds in Southwest US 'Probably Linked to Climate Crisis' (theguardian.com) 109

The Guardian reports: The mass die-off of thousands of songbirds in south-western U.S. was caused by long-term starvation, made worse by unseasonably cold weather probably linked to the climate crisis, scientists have said.

Flycatchers, swallows and warblers were among the migratory birds "falling out of the sky" in September, with carcasses found in New Mexico, Colorado, Texas, Arizona and Nebraska. A USGS National Wildlife Health Center necropsy has found 80% of specimens showed typical signs of starvation... The remaining 20% were not in good enough condition to carry out proper tests. Nearly 10,000 dead birds were reported to the wildlife mortality database by citizens, and previous estimates suggest hundreds of thousands may have died...

"It looks like the immediate cause of death in these birds was emaciation as a result of starvation," said Jonathan Sleeman, director of the USGS National Wildlife Health Center in Madison, Wisconsin, which received 170 bird carcasses and did necropsies on 40 of them. "It's really hard to attribute direct causation, but given the close correlation of the weather event with the death of these birds, we think that either the weather event forced these birds to migrate prior to being ready, or maybe impacted their access to food sources during their migration...."

Most deaths happened around 9 and 10 September during a bout of cold weather that probably meant food was particularly scarce...

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Mass Die-Off of Birds in Southwest US 'Probably Linked to Climate Crisis'

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  • by indytx ( 825419 ) on Sunday December 27, 2020 @07:53AM (#60869308)

    The article does not delve into any background, but some recent studies have confirm massive reductions in insect populations. I really don't know why we have articles with such wishy-washy language, but anyone can understand long term reductions of food (insects) and food insecurity causing a calamity when a sudden weather event occurs which cuts off access to food. Of course, the anti-climate change troll-machine will line up, so maybe that's part of it.

    • Or the machine calling anything climate change. Here's a much more probable explanation: pesticides. Mile after mile after mile of farm fields being completely eradicated of insects by modern insecticides is going to make finding them for animals that eat them difficult to impossible.
      • by AleRunner ( 4556245 ) on Sunday December 27, 2020 @09:57AM (#60869440)

        Or the machine calling anything climate change. Here's a much more probable explanation: pesticides. Mile after mile after mile of farm fields being completely eradicated of insects by modern insecticides is going to make finding them for animals that eat them difficult to impossible.

        Pesticides are definitely a problem but these things don't work in isolation. If there were fewer pesticides, the birds could probably get more insects; if there was less climate change there would also be more insects for them. The case that the biggest problem is climate change has been getting much stronger. In previous climate changes at the ends of ice ages and so on, the change was much slower and so species could move around to new areas that suited them. This time round, human driven climate change is just so much faster that it's likely to be too difficult to adapt to. That is happening everywhere whilst pesticides are more area specific, though in areas like California central valley that area can be huge. Insects could probably recover from pesticides with time, but if there aren't any insects in the other areas then they never come back.

        • Re: (Score:1, Insightful)

          by dgatwood ( 11270 )

          Or the machine calling anything climate change. Here's a much more probable explanation: pesticides. Mile after mile after mile of farm fields being completely eradicated of insects by modern insecticides is going to make finding them for animals that eat them difficult to impossible.

          Pesticides are definitely a problem but these things don't work in isolation. If there were fewer pesticides, the birds could probably get more insects; if there was less climate change there would also be more insects for them. The case that the biggest problem is climate change has been getting much stronger.

          Not really. There's no plausible reason to believe that climate change has resulted in the loss of any significant number of insects, most species of which have a lifecycle measured in single-digit weeks. If anything, the milder winters with fewer days of freezing temperatures caused by climate change should mean more insects, not fewer.

          Blaming climate change seems to be a knee-jerk reaction these days, probably because climate change research gets funded. That doesn't mean it's the cause for even half o

          • Pesticides are definitely a problem but these things don't work in isolation. If there were fewer pesticides, the birds could probably get more insects; if there was less climate change there would also be more insects for them. The case that the biggest problem is climate change has been getting much stronger.

            Not really. There's no plausible reason to believe that climate change has resulted in the loss of any significant number of insects, most species of which have a lifecycle measured in single-digit weeks. If anything, the milder winters with fewer days of freezing temperatures caused by climate change should mean more insects, not fewer.

            I don't know enough to say for sure the priority between three things I have heard of - pesticides, climate change, habitat destruction and and artificial lights. Each of those appear to be serious issues. However, saying there is "no plausible reason" just isn't true. Pretty serious studies and modelling have show that climate change is a major issue [theguardian.com]. The claim is that most insects depend on specific ecosystems and that with climate change those become unsuitable for them. Insect lifecycles are complex

          • Not really. There's no plausible reason to believe that climate change has resulted in the loss of any significant number of insects, most species of which have a lifecycle measured in single-digit weeks. If anything, the milder winters with fewer days of freezing temperatures caused by climate change should mean more insects, not fewer.

            Here's a plausible hypothesis. Background - Insects have adapted to their environment. As proof of that, there are insects that only live in Tropical or damp environments - they do not have worldwide distribution. Sometimes they will move to different areas in order to obtain an environment that suits.

            But if a mass of insects dies off because of a climate that has changed to say dry when they were adapted to a rainy climate, it is then plausible that the animals that feed on them will also expire of star

            • Not really. There's no plausible reason to believe that climate change has resulted in the loss of any significant number of insects, most species of which have a lifecycle measured in single-digit weeks. If anything, the milder winters with fewer days of freezing temperatures caused by climate change should mean more insects, not fewer.

              Apologies - I forgot one thing. If some insects do not die off because of milder winters, it does not mean there are more insects, it means that the insects that once were killed off are now interfering with other insect life cycles. So there might be less, or there might be insects not as useable as food for species adapted to eating other insects that are in short supply now.

              • by dgatwood ( 11270 )

                Not really. There's no plausible reason to believe that climate change has resulted in the loss of any significant number of insects, most species of which have a lifecycle measured in single-digit weeks. If anything, the milder winters with fewer days of freezing temperatures caused by climate change should mean more insects, not fewer.

                Here's a plausible hypothesis. Background - Insects have adapted to their environment. As proof of that, there are insects that only live in Tropical or damp environments - they do not have worldwide distribution. Sometimes they will move to different areas in order to obtain an environment that suits.

                But if a mass of insects dies off because of a climate that has changed to say dry when they were adapted to a rainy climate, it is then plausible that the animals that feed on them will also expire of starvation.

                My main problem with that is that most insect species have a really wide range. For example, the American grasshopper covers almost all of North and South America. Two species of anopheles mosquito cover almost all of the United States, with their territories separated only by a narrow arid strip in the middle. And so on.

                Also, insect species can migrate pretty quickly. Africanized bees expanded their territory at a rate of several hundred miles per year. Red ants expanded their territory at well over a

                • Not really. There's no plausible reason to believe that climate change has resulted in the loss of any significant number of insects, most species of which have a lifecycle measured in single-digit weeks. If anything, the milder winters with fewer days of freezing temperatures caused by climate change should mean more insects, not fewer.

                  Here's a plausible hypothesis. Background - Insects have adapted to their environment. As proof of that, there are insects that only live in Tropical or damp environments - they do not have worldwide distribution. Sometimes they will move to different areas in order to obtain an environment that suits.

                  But if a mass of insects dies off because of a climate that has changed to say dry when they were adapted to a rainy climate, it is then plausible that the animals that feed on them will also expire of starvation.

                  My main problem with that is that most insect species have a really wide range. For example, the American grasshopper covers almost all of North and South America. Two species of anopheles mosquito cover almost all of the United States, with their territories separated only by a narrow arid strip in the middle. And so on.

                  Let me start off by saying that your arguments are pretty sound. As well, I am not convinced that it is AGW for insect decline anyhow. I just wanted to point out that there were plausible arguments for AGW related dieoff.

                  My main criticisms on your points are that migratory routes are pretty fixed, and that the way a species changes it's location to a changing food source is that the individuals that live where the food is no longer available, die, and where there is still food, they continue to live. Also

                  • by dgatwood ( 11270 )

                    So much of all of this is conjecture, and we'll know soon. The good news is that birds have an incredible capacity to regenerate populations once protected. Locally we used to make fun of the Ducks Unlimited's quest to protect Mallards. They were having some issues here, but Many started feeding and protecting them, and their population rose to the point were people were told not to feed them, they needed to disperse themselves. Apparently something similar happened to the Chickadees. Something was killing them a few years back. Now at our backyard feeder, they are close to dominant.

                    And then, there are the [expletive deleted] starlings.

                    If you've never seen your entire lawn turn black with starlings, count yourself lucky. Heck, I wouldn't be surprised if the songbirds were just being out-competed for food by aggressive and prolific invasive species.

                    • So much of all of this is conjecture, and we'll know soon. The good news is that birds have an incredible capacity to regenerate populations once protected. Locally we used to make fun of the Ducks Unlimited's quest to protect Mallards. They were having some issues here, but Many started feeding and protecting them, and their population rose to the point were people were told not to feed them, they needed to disperse themselves. Apparently something similar happened to the Chickadees. Something was killing them a few years back. Now at our backyard feeder, they are close to dominant.

                      And then, there are the [expletive deleted] starlings.

                      If you've never seen your entire lawn turn black with starlings, count yourself lucky. Heck, I wouldn't be surprised if the songbirds were just being out-competed for food by aggressive and prolific invasive species.

                      There was a mass poisoning of Starlings near our city airport. It worked once or twice, but it turns out that it really didn't help much, and new ones moved in immediately. They probably shouldn't have put the airport where it's surrounded by working farmed fields on all sides. A veritable smorgasbord for birds and their predators.

                      Which was pointed out when they were asked if they were going to constantly poison all the birds in the city. Not a terribly pleasant task, and a lot more than starlings were ki

          • by XXongo ( 3986865 )

            Pesticides are definitely a problem but these things don't work in isolation.

            More notably, pesticides are definitely a problem but they're not particularly new.

            • by dgatwood ( 11270 )

              The problem is, neither is climate change. I realize that either can reach a tipping point, and I guess maybe that could be it, but given the rate of decline, this intuitively seems more like an infectious process. Have they ruled out wasting diseases (e.g. bornavirus) as the cause of malnutrition?

          • by rtb61 ( 674572 )

            Don't think of the birds migrating to where the insects, think more migrating back to the same locations. As climate changes, the ecology changes and shifts, impacting insect populations that then impact those that prey upon them. The insects spring back next season further south or north as the case may be and the bird populations tend to shift with them, sort of, think younger birds in new territory older birds dying in the old territory, sort of thing.

            Unseasonal weather and just the typical outliers you

            • by rtb61 ( 674572 )

              PS by localised, keep in mind what birds do in the morning, scream "My tree, I am not dead yet, over and over", so returning to the same exact locale and blocked from other locales by other existing residents, birds are territorial especially insect eaters, seed eaters not so much.

        • Pesticides can absolutely work in isolation. They aren't dependent on the weather.

      • Was the dead guy killed by the kick to the kidneys or the punch to the head? He suffered both, and the doc says either would have put him on the brink of death -- but I believe it was the kick, head trauma can't possibly kill someone!

    • No, it does not mean *that*, nor did it ever.

      It means *this*: http://www.catb.org/jargon/htm... [catb.org]

    • by rsilvergun ( 571051 ) on Sunday December 27, 2020 @12:05PM (#60869666)
      is because of decades of "liberal media" propaganda. The right wing, who opposes all efforts to address climate change on economic grounds, has been pushing the narrative of liberal media bias for over 30 years. Journalists don't like being called biased, you get it hammered into your skull at school that bias is bad. So they over correct and give patently false ideas equal air time.

      This is made possible because the right wing has zero compunction about lying (we know they're lying too, we have SEC filings where they don't lie discussing climate change, the US Military talking about it in detail, the oil executive's own scientists discussing it in papers from 50+ years ago, etc, etc).

      And thanks it it being a left/right political issue you can't even bring it up. Watch as I'm modded down into pulp for bringing politics into it. We've been conditioned to think anything that touches politics and the left/right divide is verboten and evil. That wasn't an accident either.

      And the worst thing is, we never learn. These tactics were developed in the 70s as a response to the right wing's losses in the 50s & 60s then perfected in the 80s. We've had 30 years to figure them out and see them for what they are. And we've done jack and shit.
      • Or maybe most major media outlets in the United States have been friendly to the Democrat party for decades. Liberal or otherwise.

        • OANN. Facebook [vox.com].

          But Twitter flags the Prez when he lies so all is Fair & Balance(tm), right?

          Media has an Establishment bias. Not left or right. The goal is to benefit their owners, which are the billionaires that run everything, including your life and mine. Dems call them the ruling class. GOP's rank & file call them "The Swamp" and the hard core call them the "Deep State". It's the same people.

          But again, we never learn. Are you a paid shit poster? A troll? A fool? Doesn't matter. The fa
          • Media has a Democrat bias. Has since Cronkite. He basically admitted it years after he retired (and tried to pass it off as "well we're human in the press, so anyone who isn't liberal is inhumane"). Stop fooling yourself.

            The only people around here getting paid are either on the take from Xi or spamming affiliate links.

    • by Qwertie ( 797303 )

      I don't think "cold weather probably linked to the climate crisis" is one of those things you can say without a really good explanation. It's like saying "increasing Republican power linked to the election of Joe Biden," it's just bizarre. But that's exactly what this article does.

      There are no quoted scientists in the article linking "cold weather" to "the climate crisis". One biologist is quoted saying "it appears that a change in climate is playing a role in this [mega-drought]". This is the only link to

      • by Qwertie ( 797303 )

        And yes, I know there's also a line saying "Sleeman could not say if this event was directly related to climate change but acknowledged that it is making extreme weather events more likely," which to me sounds like the journalist is trying a bit too hard to make it about climate change: "Was the the cold weather related to climate change?"..."Er, well, I can't say if it's directly related. Global warming is, uh, mostly warming."..."But isn't it true, Mr. Sleeman, that climate change makes extreme weather e

        • by shess ( 31691 )

          And yes, I know there's also a line saying "Sleeman could not say if this event was directly related to climate change but acknowledged that it is making extreme weather events more likely," which to me sounds like the journalist is trying a bit too hard to make it about climate change

          Or, and bear with me on this, every time a scientist says "It's climate change", they get death threats from random patriotic citizens and their funding cut by random patriotic congresscritters. So even if it's obvious, they've decided to obfuscate to maintain their short-term advantage of continued life and work, even though it's to the long-term disadvantage of their grandchildren.

  • Say... by a pointless and dumb relocation into middle of nowhere, shedding experts by hundreds [bizjournals.com] and then simply not hiring replacements.
    Along with all other fun things done to CDC, NIH, FDA, NSF... [nih.gov] and general day-to-day sabotage [sciencemag.org] done by the Dumpeacho administration...

    It is safe to say that the great Dumpeacho carnage of America will continue for generations.

    We suggest investing in graveyard space, caskets and crematorium services.

  • and the birds depend on the bugs to survive then theres that,
  • Climate and ? (Score:3, Informative)

    by Revek ( 133289 ) on Sunday December 27, 2020 @10:44AM (#60869510)
    Pesticide use has destroyed insect populations.
  • by awwshit ( 6214476 ) on Sunday December 27, 2020 @11:27AM (#60869584)

    Since when is Nebraska in the south-west?

    From the article:
    > It’s really hard to attribute direct causation, but given the close correlation of the weather event with the death of these birds, we think that either the weather event > forced these birds to migrate prior to being ready, or maybe impacted their access to food sources during their migration.

    Keep reading and you find only climate considerations. It says the cause of death is related to starvation and that the big flying muscles were wasting so this wasn't a short-term starvation. There is no mention of pesticides, no mention of GMO crops - or anything other than climate. I'm all of science, really, but we need to pay attention to confirmation bias and test things that we don't already believe too.

    • by hey! ( 33014 )

      Why should it mention GMO crops?

      • Because GMO crops are *designed*, in some cases, to target insects that are considered *pests* to the farmer. Those same insects *might* be *food* for birds. Food to the birds, pest to the farmer, *maybe*. These scientists could not see past a weather event and then point to climate change when there could be other things at work here. I'm not condemning GMOs, I'm saying that there are other things we could look at in the ecosystem beyond weather/climate. A weather event may have been too much for the

    • Geography is hard.
  • Relentless paving over their food habitats in the name of progress (gotta get that tax revenue!), plus use of broad spectrum pesticides and herbicides killing off their food plants and insects.
    • by hey! ( 33014 )

      Is that suddenly a much bigger factor this year?

      Even with climate, climate change per se doesn't kill things. Unusual weather events do, and what *were* unusual weather events are more common with climate change; the 100 year storm or drought becomes a twenty year or even ten year event. So this doesn't mean there'll be a big die off next year, in fact there may be a population rebound over several years until the 100 year famine happens ahead of schedule again.

  • Soylent Green will be People

  • There has been almost no rain in the southwest, with many locations having experienced no rain for 100 days or more. The monsoon never materialized, was also very hot. Vegas broke the record for days without rain Ranchers have described conditions so dry, they have not been seen in 70 years or more. Most populations are highly dependent on water and also rely on the monsoon to keep them going through summer

  • Society's worship of cats means a lot more cats nowadays that their owners let outside, resulting in billions of bird deaths every year:

    https://en.wikipedia.org/wiki/... [wikipedia.org]

  • If something bad happens, it's due to climate change, a crisis and religion founded by climate scientists to get more research money and the news media to get more readers, since only bad news sells.

It's a naive, domestic operating system without any breeding, but I think you'll be amused by its presumption.

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