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Science Friday

African Wild Dogs, Spotted Lanternfly, Seashells. July 9, 2021, Part 1

Science Friday

Science Friday and WNYC Studios

Science, Life Sciences, Wnyc, Natural Sciences, Friday

4.4 • 6.3K Ratings

🗓️ 9 July 2021

⏱️ 47 minutes

🧾️ Download transcript

Summary

Sniffing Out How To Save African Wild Dogs One of the most endangered mammals on Earth, African wild dogs are known for their oversized ears, social bonds, and highly efficient hunting style. That predatory nature is now contributing to their threatened status, as their territory in sub-Saharan Africa increasingly overlaps with human farmers, who often use poison or other lethal deterrents to protect their livestock from wild dogs and other predators. Producer Christie Taylor talks to carnivore biologist Gabi Fleury about their research on African wild dogs and other threatened wildlife, and how thoughtful applications of technology could help solve conflicts between farmers and hungry predators—hopefully saving dogs’ lives. Plus, she talks about what it’s like to make it into conservation biology, after a lifetime of dreaming about it. See A Spotted Lanternfly? Squash It! If you live in Pennsylvania or any of its surrounding environs, you’ve probably seen a really interesting looking bug in the past few years: the spotted lanternfly. Around this time of year, it’s in its nymph stage. But when fully grown, these lanternflies sound a little like the joke—they’re black and white and red all over. They’ve also got spots, as their name suggests. The charming news about how interesting they look is offset by the bad news: They are an invasive species. And they frighten crop farmers because they have a taste for just about anything, and a fondness for grapes, which could have dramatic economic consequences.  Many states have a unified stance on what to do if you spy a spotted lanternfly—stomp them out. But is that an effective way to stop their spread? Joining Ira to chat about stomping techniques and lanternfly biology is Julie Urban, associate research professor in entomology at Penn State University, in State College, Pennsylvania. Listening To Shells, An Oracle Of Ocean Health If you’re a beach person, few things are more relaxing than slowly wandering along the shore, looking for seashells. Your goal might be a perfect glossy black mussel shell, or a daintily-fluted scallop, or a more exotic shell full of twists and spirals, like a queen conch. The human fascination with seashells dates back to prehistory. Shell trumpets have been found in Mayan temples. Shell beads abound in the remains of the midwestern metropolis of Cahokia. And the Calusa Kingdom, in what is now Florida, literally built their civilization on shells.  But seashells are more than just a beachgoer’s collector’s item. They’re homes to living creatures known as mollusks, built through a complex process called biomineralization. They’re also a harbinger of environmental change—and warming seas and acidifying oceans could change the outlook for shells around the world.  Environmental journalist Cynthia Barnett joins Ira to talk about the biology, history, and environmental significance of the seashell. She’s the author of the new book, The Sound of the Sea: Seashells and the Fate of the Ocean.

Transcript

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0:00.0

This is Science Friday. I'm Ira Flato. One of the most endangered mammals on the planet is the African

0:06.1

wild dog. There are only perhaps 6,000 left in all of sub-Saharan Africa. And as their habitat gets

0:14.1

broken up by more human settlements, they're learning that an easy source of food is, well, farm animals like goats and cattle,

0:22.7

which, it turns out, results in a not so great outcome for the wild dogs.

0:27.9

Producer Christy Taylor interviewed a researcher working on exactly this problem.

0:32.7

Hey there, Christy.

0:34.0

Hey there, Ira.

0:35.1

You know, if I were an endangered animal trying to get by, it seems like eating a farmer's goat would be like a brilliant idea. I mean, it's a good source of food.

0:44.6

You would think so, Ira. Unfortunately, it turns out that when you are a farmer and you have a predator eating the source of your livelihood, it's actually a very natural response to try to kill that predator.

0:55.5

And farmers who often use poison are actually a really big problem for African wild dogs

1:00.1

and even other carnivores like lions and jackals. So a lot of researchers are actually working on ways

1:05.3

to keep these carnivores away from livestock in order to keep them all alive. Yeah, I see what you're talking about. So tell us a

1:12.6

little bit about your story. Sure. I talked to Gabby Fleury, who is an early career scientist who

1:18.0

is up to all kinds of cool stuff. They've done research in Namibia, South Africa, and Kenya,

1:23.1

and they are a Fulbright scholar with an upcoming research project in Botswana. Wow, sounds like a lot of frequent flyer miles.

1:29.9

Yeah, I'm not going to lie, Gabby's work sounds amazingly cool to me.

1:33.7

And it's all in the name of finding technology tricks to keep livestock safe from African wild dogs and other big endangered carnivores,

1:41.0

which, as I mentioned, will keep those carnivores themselves alive and

1:44.9

thriving. And I started by asking Gabby how they first got interested in carnivore conservation.

1:50.6

Yeah, so I've always known I wanted to become a conservation biologist. I knew from the age of three.

1:55.0

I'm not sure if I watched too much Captain Planet or too much Lion King. Probably one of the two.

1:59.9

But it's something I've always wanted to do.

...

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