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The Heat Is On: Climate Change Causes Birds To Hatch Early (australiangeographic.com.au)
grrlscientist writes: A recently published study reveals that climate change can cause birds' eggs to hatch early. In addition to creating warmer temperatures that trigger early embryonic development in birds, climate change also increases the frequency and duration of heat waves. Thus, warming temperatures are leading to asynchronous hatching of individual eggs within a clutch and increased chick mortality, particularly for birds breeding in the tropics and semi-tropics, and in tropical deserts.
I read another study about a year ago (the link for which I can't find, so I profusely apologize in advance for the lack of citation), which also found that warmer temperatures were causing eggs to hatch sooner... but that the new birdlings were starving to death for a different reason: the timing of their hatching no longer aligns with the bloom of insects which are required for their sustenance. Apparently the insects did not get the memo that the warmer temperatures should also make them spring forth earlier in the season. So they are still business as usual after the young birds are already dying out, but as far as the birds are concerned, the bugs are late to the party... now I wonder if an additional side effect is an atypically larger insect population due to the comparative lack of predators.
Good question. TFA explains that a female zebra finch will lay one egg a day for five days, but she won't start incubating them until they're all laid. This means that all five will hatch at about the same time, making them easier to care for. If the weather's too hot, the first eggs laid start developing before she starts sitting on them, messing up the timing. And, if it gets hot enough in the nest, the embryos can be damaged or even killed.
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Native communities in Northern Saskatchewan are dealing with the problem of caribou herds moving north. Their ranges are no longer within range of hunters from the communities. I theory, the climate change would have probably cause buffalo to move north to replace them, but the buffalo are mostly extinct, now.
Sometimes boldness is in fashion. Sometimes only the brave will be bold.
This climate change is caused almost entirely by the sun and the oceans.
But this isn't borne out by evidence. The sun has cooled very slightly, but the temperature has spiked up: https://www.skepticalscience.c...
The oceans absorb and release carbon dioxide in direct proportion to atmospheric carbon dioxide. They essentially function to reduce the impact of atmospheric CO2 changes that would otherwise happen, in either direction. The ocean doesn't just burp out CO2 on a whim.
Every reputable expert on geologic evidence I can find suggest that geologic evidence actually indicates that current climate change is overwhelmingly from human activity, and unusually rapid. There will of course be error bars and overall trendlines from natural sources as well, although it's not even clear that trendline runs in the same direction as current climate change.
Imagine that, a change that effects the entire planet's atmosphere might cause a whole variety of changes across said planet. Its almost like if you change variables in a chaotic system you can get a wide range of surprising effects.
Probably because of this "Thank you for visiting Forbes. We noticed that you have an ad blocker enabled." Which makes the site useless to many of us.
Time is what keeps everything from happening all at once.
Or you could go actually read the original paper to see if you could detect any confirmation bias. I did and it's not that hard to read if you have a little biology literacy.
Every reputable expert on geologic evidence I can find suggest that geologic evidence actually indicates that current climate change is overwhelmingly from human activity, and unusually rapid.
Well there's your problem. Getting your science information from Scientists, instead of Politicians and the industries that own them. Whooooeeeee! what next? Gettin' healthcare from Doctors? That's crazy thinkin'!
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
So birds in their wisdom can adapt to climate change but the weeping willies say humans can't.
Of course we can. Those adaptations might not be all that much fun for some of us though.
The shepherds did so well protecting the flock that the sheep no longer believed that wolves existed.
The paper was about the effect of temperatures on the nesting success of zebra finches. As part of the study they looked at natural conditions but they also tested the effects of artificially raising the temperature. The paper barely mentions global warming.