Dr. Roland Kays

speaker

117 appearances 1 recordings 1 series first heard May 2026 last heard 28 May

Dr. Roland Kays’s voice in public audio — every appearance, attributed to the second.

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Recordings per month over the last 12 months — 1 in all, peaking in May 2026 with 1.

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Science Friday · Surveying wildlife along Lewis and Clark's route, 220 years later · 28 May 2026 podcast

And so that's one that we can use to compare from one region to another and from one year to another, you know, in recent time with camera traps.

Lewis and Clark didn't have camera traps.

So, you know, the comparison with what they saw...

isn't going to be, you know, super statistically robust.

But there are some big obvious patterns that we can see, you know, not only from the Lewis and Clark time point to today, but, you know, over the last few decades, the last few centuries.

And so we're really trying to tell some of those stories of how the wildlife's doing in our country and what have we done to help them and what have we done to hurt them?

And what can we do sort of moving forward to maintain sustainable, healthy wildlife populations?

Well, so a lot of, when you look at the big arc of wildlife, a lot of what we see today is good news.

A lot of the animals that we see today are doing way better than they were a hundred years ago.

We started in Pittsburgh where Lewis started his journey.

And by the time he was leaving Pittsburgh, a lot of the big animals had already been shot out.

And he observed flocks of passenger pigeon and not that long afterwards,

those birds were shot out and they went extinct.

He didn't even observe Sandhill Crane there.

But when we visited a wildlife-friendly farm north of Pittsburgh, we saw Sandhill Cranes every day.

There were deer all over the place.

The turkey were super abundant.

And the reason this happened is because we invented things like protected areas, right?

There didn't used to be protected areas.

We invented hunting regulations like bag limits and seasons.

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