100 episodes

Conversations about the natural world with Dr. Curt Stager and Martha Foley, from member-supported North Country Public Radio. 010329

Natural Selections NCPR - North Country Public Radio

    • Natural Sciences
    • 4.9, 7 Ratings

Conversations about the natural world with Dr. Curt Stager and Martha Foley, from member-supported North Country Public Radio. 010329

    Mosaics and chimera: Mix and match DNA

    Mosaics and chimera: Mix and match DNA

    In most cases, we get half our genes from one parent, half from the other. But it doesn't always happen that way. Parts of the genetic inheritance can be turned on or off, and genes from other familial sources can play a role in shaping the individual body. Martha Foley and Curt Stager explore what happens when there are ripples in the gene pool.

    • 5 min
    Why are coral reefs so rich in life compared to an Adirondack lake?

    Why are coral reefs so rich in life compared to an Adirondack lake?

    The first time Martha Foley went snorkeling on a coral reef, she was staggered by the abundance and diversity of marine life. Doing the same in an Adirondack lake one might see a lot of mud and a snail. She asks Dr. Curt Stager of Paul Smith's College what the difference might be.

    • 4 min
    What were the Adirondacks like before the Ice Age?

    What were the Adirondacks like before the Ice Age?

    Before the last Ice Age, 100,000 year ago, the Adirondacks were a very different kind of place. The terrain was different, the climate, wildlife, and plant life bore little relationship to what we see today. Martha Foley and Dr. Curt Stager go way back.

    • 4 min
    For cats, the comfort zone is shaped like a box

    For cats, the comfort zone is shaped like a box

    Of all the places a cat can hang out, why do do many of them want to hang out in boxes? According to researchers, cats that spend time in close confines are measurably less stressed than those remaining in the open. As Curt Stager tells Martha Foley, it's not just house cats who feel this way.

    • 4 min
    "Couch potato" bass evolving in response to human predation

    "Couch potato" bass evolving in response to human predation

    The pressure to keep billions of humans fed can have a transformative impact on amimal populations. Overharvesting that targets the largest animals can result in reduction of the average size of species, as seen in Caribbean conch snails. And sport-fishing pressure on large mouth bass can winnow out the most agressive in the gene pool, resulting in a "lazier," more passive remnant population.

    Martha Foley and Curt Stager talk about the human factor in animal evolution.

    • 5 min
    Can Adirondack lake trout survive climate change?

    Can Adirondack lake trout survive climate change?

    Lake trout require a lot of cold, oxygenated water to survive. Lakes in the Adirondacks of upstate New York are at the southern edge of their natural range. Although about 100 Adirondack lakes and ponds are still home to lake trout, even a small increase in temperature could sharply cut that number.

    • 4 min

Customer Reviews

4.9 out of 5
7 Ratings

7 Ratings

Amaze5050 ,

Great podcast

This is an awesome podcast that covers a wide variety of topics. I've listened to all of the episodes and my only complaint is I wish there were more to listen to! Highly recommended.

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