Three Frogs In the Bog
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Hazards of nature: a bog frog in the throat and a man-eating camera thief
Play Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Share Facebook Twitter Mail. The three key things are water, shelter and food. Frog Friendly Tips Put a solar powered light beside the pond to attract insects at night. This is how to attract frogs to your pond. They eat insects, and love flying insects.
Broadcast: Fri 25 May , pm. Published: Fri 25 May , pm. Credits plus minus. Presenter Costa Georgiadis. Related video. Sat 17 May , am.
Between a Bog and a Hard Place
Hop Into It! Sat 20 Jul , am. Growing Friendship. For the frogs and salamanders, the solution would seem fairly straightforward: Simply move downslope to lakes and ponds that are less likely to dry out. In the s, settlers, and later fish and wildlife managers, stocked many of those ponds and lakes with trout—first for food, and then to promote recreation. Although official stocking was discontinued years ago, some dedicated anglers still pack trout into backcountry lakes.
Once in the lakes, the trout were efficient predators and duly ate almost all the amphibians that lived there. The only places frogs and salamanders are still found in any great number are lakes without trout—a relatively rare commodity—and those many small ponds scattered throughout the landscape that are most at risk for drying out. To aid amphibian communities, and as part of a larger climate-adaptation strategy, some national parks are considering removing fish from what were naturally fishless lakes.
But that is a long and difficult process.
Biologists must visit targeted lakes frequently for five years or more, catching trout with gill nets until all of them are gone. In larger lakes where gill-netting is unfeasible, pesticides are sometimes used, which brings an entirely different set of challenges. To help park biologists determine where best to spend their money and time, Palen and Ryan are developing a model that will prioritize lakes for fish removal by showing which are most likely to persist in future climate scenarios.
You can read this and other stories about history, nature, culture, art, conservation, travel, science and more in National Parks magazine. In North Cascades National Park, where fish removals have been under way since , the benefits to biotic communities are already apparent, says Regina Rochefort, the research coordinator for the park.
Read more from NPCA
Frogs, newts, salamanders, and toads have already started to recolonize lakes recently cleared of fish. Rochefort and fellow biologists have discovered trout in a couple of the lakes where fish had been completely removed.
The park has launched educational outreach efforts to inform people about the benefits of fish removal. They will place their temperature loggers and hunt for the frogs that lurk in the surrounding vegetation. But now, in the face of the cold and the coming snows, most of the frogs are nowhere to be found. Where exactly they go during the winter is unknown, even to Palen, who has studied them for almost 15 years. For her, though, this is part of their appeal—the way they show the rigors of an alpine life.
Eric Wagner writes from Seattle, where he lives with his wife and daughter. A group of private business leaders offered controversial recommendations for park campgrounds that go against the spirit and character of public lands.
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