The largest population of leatherback sea turtles in the world has been identified off the coast of Gabon, Africa, and is estimated at somewhere between 15,700 and 41,400 female turtles. This seems to be a big bounceback for the endangered turtles, which are the largest living members of the sea turtle superfamily. This rough estimate was compiled during three nesting…
New movement patterns may be a sign of good news for blue whales. Blue whales have begun moving around the ocean in ways that strongly resemble their historical patterns before the advent of the whaling trade. A century ago, about 300,000 blue whales existed. But in the early 1900s, humans hunted and killed 99.9 percent of them. The population decimation…
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)…
“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…
Yesterday marked the 16th annual United Nations World Water Day, a day of advocacy for sustainable and careful management of clean freshwater supplies worldwide. This year’s theme was “Shared Water – Shared Opportunities.” The goal of the theme is foster goodwill and collaboration among neighboring nations to promote working together to preserve their waterways. More than 45 percent of the…
A comprehensive analysis of the current condition of birds in the U.S. was released yesterday by The Nature Conservancy, USGS, the Audubon Society, the Cornell Lab of Ornithology and many other non-profit groups. Dubbed The State of the Birds, the document reports that of the nation’s approximately 800 bird species, 67 are federally listed as endangered, 184 are of conservation…
It’s nice to have some good conservation news every once in awhile, even with caveats. North Atlantic right whales are one of the most endangered species on Earth. These mammals were dubbed by 18th-century whalers to be the “right” whales to catch because they’re huge (up to 70 tons and 55 feet long), stay close to shore, move slowly and…
Ethanol as the next generation of alternative fuels has stirred significant controversy. While some tout its lower-than-gasoline greenhouse-gas emissions and its usefulness in creating carbon sinks in its agricultural fields, many other ecologists call ethanol production the most inefficient of alternative fuel options. Even the most optimistic scenarios still show that using current technologies, it can take years – in…
One of last week’s Nature editorials extols the 109th annual Christmas bird count, a tradition started by the National Audubon Society as an alternative to the former competitive sport of shooting birds to mark the holidays. The survey, which takes place during a three-week interval that overlaps Christmas and New Year’s Day each year, involves birders of all ages and…