Ecosystems

Ecosystems

Sea Change: People have affected what penguins eat

Adélie penguins in Antarctica significantly changed their eating habits about 200 years ago, after whaling and other human activities transformed the ocean ecosystem.

Ecosystems

Sawfish Central

Sawfish will soon be getting United Nations protection from exploitation. Right now, the only U.S. state where these ancient fish can generally be found—and then, only rarely—is Florida. Here’s a site to view the fish, a member of the shark family, and link to research aimed at rescuing populations of its seven beleaguered species worldwide. […]

Ecosystems

Slime Dwellers

The health of corals, and their adaptability in the face of adversity, may rest largely on the microbes they recruit into a slime that coats their surfaces.

Ecosystems

The Great Turtle Race

This international conservation event involves 11 leatherback turtles that are “racing” toward feeding areas south of the Galapagos Islands. Pick your favorite of these endangered animals and follow its progress, as tracked by satellite, from April 16 to April 29. Go to: http://greatturtlerace.com

Ecosystems

Lakeshore Nature Preserve

This nature preserve at the University of Wisconsin–Madison protects undeveloped lands along the shore of Lake Mendota. Even if you can’t visit it in person, the award-winning interactive map will help you appreciate the qualities of this beautiful slice of nature. Go to: http://www.lakeshorepreserve.wisc.edu

Ecosystems

Warming Sign? Larger dead zones form off Oregon coast

Unprecedented recent changes in the yearly pattern of ocean currents off North America's West Coast have wreaked havoc on aquatic ecosystems there, another possible symptom of Earth's warming climate.

Ecosystems

An unexpected, thriving ecosystem

A diverse group of creatures beneath an Antarctic ice shelf could give pause to researchers who infer past ecological conditions from fossils found in such sediments.

Ecosystems

Saving Whales the Easy Way? Less lobstering could mean fewer deaths

A provocative proposal suggests that the U.S. lobster fleet in the Gulf of Maine could reduce the number of traps, maintain its profits, and improve life for endangered right whales.

Ecosystems

Alien Alert: Shrimpy invader raises big concerns

A shrimplike European invader just discovered in the Great Lakes could prove ecologically disruptive to populations of native lake animals.

Ecosystems

Most Bees Live Alone

Concern about honeybee shortages has inspired new interest in bees that lead solitary lives and don't bother storing honey.

Ecosystems

Going Native: Diverse grassland plants edge out crops as biofuel

Biofuels made from mixtures of plants native to prairies can yield more net energy than do biofuels derived from corn and soybeans.

Ecosystems

Brave Old World

If one group of conservation biologists has its way, lions, cheetahs, elephants, and other animals that went extinct in the western United States up to 13,000 years ago might be coming home.