04/16/2021

SciFri Soundscape: Justice In The Jungle

1:45 minutes

a jaguar caught on film at night bowing its head towards the forest floor
Jaguar in a cacao plantation. Credit: Panthera

In Central America, jaguar poaching is a big issue. The sounds of bullets and barking dogs are telltale signs that poachers are around. In 2017, to combat this issue, wild cat conservation group Panthera set up acoustic monitoring devices in Guatemala and Honduras. These recorders collect the sounds of the forest, so that scientists, with the help of artificial intelligence, can analyze the collected sounds. Wildlife patrols can then target places where poachers have been the most active.

It turns out this strategy has been working: Evidence of poaching has gone way down around these recorders. The forest sounds more as it should–natural.

a jaguar in the jungle
Jaguar in Punta de Manabique. Credit: Panthera
a puma comes up close to a camera
A curious puma in Pico Bonito. Credit: Panthera
two male researchers wearing hiking gear in a jungle environment
Mauro Zavala (head ranger) and Franklin Castaneda on patrol in Honduras. Credit: Jeanette Kawas/Panthera

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Segment Transcript

IRA FLATOW: Oh, one last thing– our SciFri soundscape.

[TROPICAL BIRDS AND WILDLIFE]

We’re taking you to Central America, where jaguar poaching is a big issue. The sounds of bullets and barking dogs–

[BARK]

–are telltale signs that poachers are around.

[BARKING]

[GUNSHOT]

In 2017, to combat this issue, wildcat conservation group Panthera set up acoustic monitoring devices in Guatemala and Honduras. These recorders collect the sounds of the forest. Those sounds are what you are hearing now.

[PRIMATE VOCALIZATION]

[FROG CROAKING]

Scientists, with the help of artificial intelligence, analyze the collected audio. They can then send wildlife patrols to places where the poachers have been most active. It turns out, this is working. Evidence of poaching has gone way down around these recorders. And the forest sounds more as it should– natural.

[TROPICAL BIRDS, REPTILES AND WILDLIFE]

That’s about all the time we have. If you missed any part of this program or you would like to hear it again, subscribe to our podcast, or ask your smart speaker to play Science Friday. Of course, you can say hi to us on social media– Facebook, Twitter, Instagram– or email us the old-fashioned, classic way– SciFri@ScienceFriday.com. Have a great weekend. We’ll see you next week. I’m Ira Flatow.

[TROPICAL BIRDS]

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About Kathleen Davis

Kathleen Davis is a producer at Science Friday, which means she spends the week brainstorming, researching, and writing, typically in that order. She’s a big fan of stories related to strange animal facts and dystopian technology.

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