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Every summer, thousands of citizen scientists help researchers track bat populations

SCOTT SIMON, HOST:

Bats have been in decline across the country for years. Some reasons include habitat loss and disease. But for scientists to understand these threats, they have to track a flying, nocturnal animal that can't really see or hear - unlike BJ Leiderman, who does our theme music - so they get help from special technology and many volunteers. Nikolai Mather with member station WHQR in Wilmington, N.C., recently went on a midnight quest for bats.

NIKOLAI MATHER, BYLINE: It's a balmy summer night. I'm on a country road on the border of North and South Carolina with Jen Gore and Jen Hufham. They have their hazard lights on, and they're taking me for a very slow drive.

Why do we have to go 20 mph?

JEN HUFHAM: We're at the pickup. I assume if we're going faster, maybe the wind will be too much.

(SOUNDBITE OF HORN HONKING)

HUFHAM: Oh, see.

JEN GORE: Have a great day.

MATHER: Going this slow on a two-lane road means you'll hear a lot of angry honks. But Gore and Hufham have to drive slow in order to collect bat calls. They're volunteers for the North American Bat Monitoring program, or NABat for short. Gore and Hufham taped a special microphone to the roof of their Toyota. That way they can figure out which bats are flying overhead.

HUFHAM: Eastern red bat.

GORE: Yeah, we're going to get some more through here.

MATHER: They pick up their first sound. Bats use high-pitched noises to hunt. It's called echolocation. The sound bounces off of obstacles in their path, which allows them to kind of see in the dark. The noises are too high for humans to hear, which is why our volunteers use the microphone. The sound waves show up on an iPad that Hufham is holding. It's connected to the microphone. A special app can identify the species.

HUFHAM: Oh, southeastern myotis - we didn't get that one before.

MATHER: Already two bats in the can for these volunteers. And there are 17 species in North Carolina. We can also use technology to make the bat calls audible for the human ear. It sounds a little weird, but here it is.

(SOUNDBITE OF BAT CALLING)

MATHER: Every summer, thousands of citizen scientists across North America go on these excursions. They collect these bat calls in the field to share with researchers.

HUFHAM: How visible is the moon? It was, like, halfway visible before, wasn't it?

GORE: Yeah.

MATHER: Hufham is checking the weather conditions. Volunteers have to record the temperature, the cloud coverage and other environmental data for each run.

HUFHAM: It was, like, cloudy but not covering it, really.

MATHER: We reached the end of the route. Gore turns off her hazard lights and drives us back to the gas station where we met. Every volunteer in every region follows the exact same procedure. Scientists need standardized data for their analyses to be accurate. They take their job seriously, Hufham tells me, because they know this work matters.

HUFHAM: The data we collect helps us to look at what species are doing well, what species need our help, and what ecosystems are good for not just bats but other wildlife as well.

MATHER: And in just half an hour, we recorded 11 different bat species.

For NPR News, I'm Nikolai Mather in Wilmington, N.C. Transcript provided by NPR, Copyright NPR.

NPR transcripts are created on a rush deadline by an NPR contractor. This text may not be in its final form and may be updated or revised in the future. Accuracy and availability may vary. The authoritative record of NPR’s programming is the audio record.

Nikolai Mather

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SOMOS CONNECTICUT es una iniciativa de Connecticut Public, la emisora local de NPR y PBS del estado, que busca elevar nuestras historias latinas y expandir programación que alza y informa nuestras comunidades latinas locales. Visita CTPublic.org/latino para más reportajes y recursos. Para noticias, suscríbase a nuestro boletín informativo en ctpublic.org/newsletters.

The independent journalism and non-commercial programming you rely on every day is in danger.

If you’re reading this, you believe in trusted journalism and in learning without paywalls. You value access to educational content kids love and enriching cultural programming.

Now all of that is at risk.

Federal funding for public media is under threat and if it goes, the impact to our communities will be devastating.

Together, we can defend it. It’s time to protect what matters.

Your voice has protected public media before. Now, it’s needed again. Learn how you can protect the news and programming you depend on.