In Ecology News: Python vs the Everglades

Are exotic pythons devastating Florida’s Everglades National Park? By Liza Lester, ESA communications officer Sometimes the snake wins. The exotic Burmese python is a new and deadly predator allegedly squeezing the wildlife of Florida’s already environmentally pressured Everglades. Large snakes have been observed swallowing American alligators and 80-pound deer, but more common prey are small mammals like raccoons, rabbits, and...

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Scientists detect aquatic ecosystem warning signal

Scientists have found what appears to be the stress signals of a lake ecosystem that is on its way to collapse. Stephen Carpenter of the University of Wisconsin, Madison and colleagues carefully monitored the food web in a Wisconsin lake as they gradually introduced largemouth bass into the ecosystem. The researchers noticed a shift in the algae populations that were directly related to the altered feeding behavior of smaller lake...

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Birth control for Bremen’s cats

As spring days are punctuated with the chirps and trills of bird song, a recent article in the Guardian seems especially timely.  The northern German city of Bremen plans to take action to curtail its burgeoning population of free–roaming cats, estimated to be at least 1,000 strong. Whether feral or domestic—cats take a significant toll on birds and many other small wild animals.  A U.S. Fish & Wildlife fact sheet on bird...

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The tiny, diligent gardeners of the Amazon

The gardeners described here are not concerned with trimmed topiaries or manicured lawns—though, like designers of landscape gardens, these workers are exceptionally picky. And they have to be if they are going to survive. That is, ants such as Myrmelachista schumanni and Camponotus femoratus of South America depend on certain plants for shelter, and in return, they offer these plants nutrients and protection from predators. As a...

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Scientists closely examine causes of frog abnormalities

Currently, research on the possible causes of limb deformities in amphibians is expansive, with evidence supporting parasite infection, chemical contaminants, UVB radiation and amputation as possible factors. However, as Mari Reeves from the U.S. Fish and Wildlife Service and colleagues explained in an article in the August issue of Ecological Monographs, the most likely cause of  amphibian abnormalities is a combination of several...

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Iron-plated Snail

This post contributed by Nadine Lymn, ESA Director of Public Affairs  Another example of the ingenuity of nature: researchers are finding inspiration in the extraordinarily strong exoskeleton of a deep-sea snail, Crysomallon squamiferum.  The mollusk’s iron-plated shell is giving researchers insights that could lead to stronger materials for airplane hulls, cars, and military equipment. Researchers at the National Science Foundation...

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