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by cmpaul 2808 days ago
> The invertebrates that live there, likewise, are adapted to these temperatures and fare poorly outside them; bugs cannot regulate their internal heat.

This makes me think that the insects which do survive will be better adapted to the higher temperatures. Hopefully the change is slow enough they have time to adapt. And this is nothing to say about the impact of that adaptation time on other species...

2 comments

Problem is the temperature keeps changing (upwards). If it was a step input, then you might see a sudden die-off and then a ramp back up. But the temperature change is, to first order, a ramp input.
Problem? Slow ramps are the ideal way to drive adaptation. That's why finishing a course of antibiotics is so important.
This isn't slow, by evolutionary standards. The bugs are trying to adapt to a changing, rapidly increasing temperature.
I'm willing to bet that the necessary genes already exist in the population, since the bugs already handle daily temperature swings that are much larger than the increases from climate change.

Given that, a few dozen generations is plenty. And insect generations are for the most part quite short.

Then why are the insects all dying? If this is true, the populations should be rebounding. They aren't.
Because it's still a bad effect that takes time to adjust to. And there might be other factors.
Arthropods can trive in the worst deserts of the planet. They just will hide by day, will migrate or look for shadowy areas. On the other hand is practically impossible to obtain funds for saving the rarest species. There is an everlasting pressure to trim and chew the borders of the protected areas.