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Dr. Elske Tielens

๐Ÿ‘ค Speaker
87 total appearances

Appearances Over Time

Podcast Appearances

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

And so there has to be sort of sufficient signal, sufficient density of insects for our methods to be able to differentiate and say, okay, this is real insects, right?

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

No, not at all.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

The radar totally doesn't know and doesn't care.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

And that's an interesting thing about this tool.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

It's really good for quantifying abundances and looking at a standardized way of measuring how many insects are out there.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

It's the same tool.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

across all these different radars across different regions across the entire United States.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

But if you wanted to know more about what's happening specifically with this population or that, then you need to combine it with sort of local surveys or citizen science or other types of tools that we have.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

Yeah, interestingly, we sort of expected everyone's been really worried about insect declines.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

Obviously, there's a lot of studies demonstrating that insect biodiversity is going down, and in many species, insect abundances have been declining over the past 10-something years.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

And so we sort of expected to find widespread declines, and instead we found that

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

At the continental scale, insect abundances are pretty stable.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

There's areas where they're declining and there's areas where they're increasing.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

And it sort of offsets each other that over the 10-year period, we don't see a strong trend.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

That's exactly right.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

You've got winners and losers, probably.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

Some species doing really well.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

And the species that we know sort of don't handle anthropogenic change so well maybe are declining.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

And so there's a balancing act happening of increases and declines in different species that results in this stable trend.

Science Friday
Bizarre exoplanet clouds + Counting insects with weather radar

Yeah, I mean, that's a really good question.