Addition of parasites (red spheres) visibly increases connectivity of species in this representation of an Arctic food web. Studies of food webs fascinate community ecologists. There seems to be a never-ending supply of interactions to observe, analyze and use in predictions. From the largest apex predators, feeding once a week, to the smallest alga, constantly converting sunlight to energy, there’s…
With massive issues like invasive species, climate change and protection of biodiversity moving onto the world stage, ecological knowledge has perhaps never been in higher demand than today. Support for most (about 67 percent) of biological research in the U.S. comes from the National Science Foundation’s Biological Sciences Directorate (affectionately known as NSF BIO); a similar granting program at the…
Cold-blooded animals don’t produce their own heat, and thus they must sunbathe, basking in the sun’s rays to raise their body temperatures so they have eonugh energy to go about their business. But for some ectotherms, the sun isn’t just a source of heat. A new study shows that in the panther chameleon, native to Madagascar, basking behavior also controls…
Ecologists point to forests as important sinks for atmospheric carbon. But a new report suggests that climate change could induce environmental stresses that would chnge the role of forests into a net carbon source. The report, titled “Adaptation of Forests and People to Climate Change – A Global Assessment,” was coordinated by the International Union of Forest Research Organizations (IUFRO)…
A paper in Accountability in Research last week has stirred up significant controversy among researchers, science journalists and bloggers this week. Directly from the abstract: “Using Natural Science and Engineering Research Council Canada (NSERC) statistics, we show that the $40,000 (Canadian) cost of preparation for a grant application and rejection by peer review in 2007 exceeded that of giving every…
“We have been replanting forests for 4,000 years, but we are only just now learning how to revive a coral reef.” Mineo Okamoto is a marine biologist at the Tokyo University of Marine Science and Technology. He’s one of the researchers leading the charge to restore Japan’s coral reefs, which have suffered a reported 90 percent dieback in the last…
Many trees with large seeds rely on vertebrate seed predators to disperse their seeds. The whitebark pine, a key subalpine species, has coevolved with the Clark’s nutcracker into a tight mutualism. In their paper in the April Ecological Applications, Shawn McKinney, a post-doc at the University of Montana, and his colleagues studied a natural disruption to this mutualism: an invasive…
Here are some highlights of the most recent Policy News Update, written by ESA’s Policy Analyst, Piper Corp. You can read the full update at ESA’s Policy News page. Details of Waxman-Markey climate bill: On March 31, Representatives Henry Waxman (D-Calif.) and Ed Markey (D-Ma.) released their draft climate change and energy bill — the “American Clean Energy and Security…
PBS gave a sneak preview of its Frontline documentary, Poisoned Waters, today at the National Press Club. The featured speakers included EPA Administrator Lisa Jackson and the founding EPA Administrator, Bill Ruckelshaus, who served under Richard Nixon. Both agreed that to really clean up our nation’s waterways, we need one thing: new legislation. “There is murkiness about the jurisdiction that…
The state governments of Maryland and Virginia, along with the Army Corps of Engineers, announced yesterday that Asian oysters will not be allowed in the Chesapeake bay. The decision capped a five-year study on the nonnative oyster to assess its potential to replace the rapidly diminishing native Eastern oyster, Crassostrea virginica. The decision ultimately came down to the Army Corps…
The Environmental Protection Agency is taking a leaf out of the FBI’s book in their fight against “environmental crimes.” EPA has established a Most Wanted list, including mug shots, of offenders who have been charged with violating environmental laws or regulations. The list was established to put a spotlight on environmental crime and to signal that the agency is taking…
Evolutionary biologists agree that the natural environment shapes the evolution of life. A study published in Nature today, however, finds that the evolution of a species can also have big impacts on the surrounding environment. Threespine stickleback are famous as an example of rapid, adaptive radiation. These small freshwater fish have evolved in the lakes of British Columbia to have…