Climate change plus human pressure caused large mammal extinctions in late Pleistocene
... extinction of many more species and unpredictable ecosystem changes," he said. The authors' warnings are based...ough different species may have filled the various ecosystem niches. In the late Pleistocene, however, something happened to make the number of large mammals nos......iation of how changes in fish behaviour can affect ecosystem processes" ...UAF scientists discover new marine habitat in Alaska
...arn precisely what their role in the Alaska marine ecosystem is," said Konar. Mike Foster, professor emeritus at Moss Landing Marine Laboratory in California, has studied the global distribution of rhodoliths, and is the author of numerous scientific papers on the subject. He says the discovery of rhodolit...AIBS tapped to coordinate design of ecological observatories
...ips between biodiversity, species composition, and ecosystem function; the impacts of land use and habitat alteration; the ecology and evolution of infectious disease; the causes and consequences of invasive species; the ecological implications of biogeochemical cycles; and hydroecology. NEON will transform th...Scientists explore genome of methane-breathing microbe
...er what conditions methane can be removed from the ecosystem before it accumulates as a greenhouse gas." Ward is an Assistant Investigator at The Institute for Genomic Research (TIGR), which led the genomic sequencing and conducted the analysis with scientific collaborators at the University of Bergen in Norw...Berkeley Lab soil scientist Margaret Torn receives Presidential Early Career Award
...ealized the first regional climate and terrestrial ecosystem supercomputer model that couples the land surface ...ickly climate may change. And we need to learn how ecosystem processes may amplify the warming we have started. The time for prevention is now." Previous Berkel...Fossils reveal direct link between global warming and genetic diversity in wildlife
...s for wildlife managers in the greater Yellowstone ecosystem who are trying to maintain genetically diverse populations of elk, bison and other mammals. "The landscape of Yellowstone arguably one of the largest relatively intact temperate zone ecosystems in the world is really chopped up and isolated, and t...Computer models expose humans as main cause of caribou decline
...udson, developed computer models that simulate the ecosystem of a 20,000 square km area in northern Alberta. Th...ation in the area. As well, a "natural" model--the ecosystem as it would be without any humans and thus no industrial development--was created, as was a "busines...NASA satellites detect 'glow' of plankton in black waters
...ese results suggest that the delicate Florida Keys ecosystem is connected to what happens on land and in two remote rivers, the Peace and Caloosahatchee, as they drain into the ocean. Extreme climate conditions, such as abnormally high rainfall in spring and summer 2003, may accelerate such connections," he ad...Better living through urban ecology
...is to include this growing and often misunderstood ecosystem type in the public dialogue about the metropolitan environment. Working with partners, including the Parks & People Foundation, the USDA Forest Service and Yale University's Urban Resources Initiative, BES has built an unprecedented platform for int...New hypoxic event found off Oregon coast
... the edge and into an hypoxia state. This coastal ecosystem off Oregon seems to be changing in a way we have never seen." Scientific data to document the changing ocean conditions only goes back a few decades at best. But anecdotal evidence from regional fisherman and other coastal residents also suggests tha......Department of Wildlife) will examine the impact of ecosystem changes on the distribution of the greater sage-grouse and the Gunnison sage-grouse in his presentation, "Changes in the distribution of sage-grouse in North America." Allen Rasmussen (Texas A&M University) will follow with a discussion on the suppre...Climate change could doom Alaska's tundra
...climate models.Tundra is a cold, comparatively dry ecosystem that now covers much of Alaska, characterized by t...ike one of the major impacts will be on the tundra ecosystem of Alaska."...Gulf of Maine marine ecosystem may have entered new phase
...nction of keeping their prey species in check, the ecosystem entered a new phase marked by abundant sea urchins and a lack of kelp beds. Urchins ate so much kelp that they created areas known as "urchin barrens" where only low growing algae could survive. In turn, the harvesting of urchins during the 1...Pocket gophers serve as 'ecosystem engineers'
... of the natural habitat. "Gophers were part of the ecosystem before grazing and before people arrived," he said. He is researching the differential effect that gophers have on native plants versus invasive species. This research is contributing to efforts to restore native habitats. In his presentation he wil...Lehmann lovegrass won't succumb to fire
... could permanently alter the characteristics of an ecosystem by affecting such processes as nutrient cycling and relationships between species. "Biological invasions usually cause extinction, so we have to assume that Lehmann is not a good thing," he said. Historical records have shown that Leh...Ecologist calls for creation of an international panel to assess human behavior
...e.'' Ethics and humanity Although modeled on the ecosystem assessment project and the IPCC, MAHB would mainly focus on the social sciences, providing more consideration of the ethical dimensions of how people treat one another other and the environment, he added. ''The MAHB at a minimum would need to determi...New study to investigate demise of coral reef ecosystems
...res worldwide. The research team will examine the ecosystem consequences of bleaching, particularly on reef fish assemblages over five to 15 year time scales at sites in the Western Indian Ocean (including the Seychelles, Kenya and Sri Lanka), and Australia. The project will conclude with a large-scale analy...American Society of Mammalogists honors CI president Russell Mittermeier with Aldo Leopold award
...de biological diversity and its value to humanity, ecosystem conservation, tropical biology and species conservation. Mittermeier's publications include 10 books and more than 300 papers and popular articles on primates, reptiles, tropical forests and biodiversity. In addition to his work at CI, Mittermeier i...... for floods. Assessments of wildlife habitats and ecosystem studies help manage the impact of fires. The briefing is sponsored by the California Water Education Foundation and Senator Gordon Smith, Representative Jim Moran, and Representative Greg Walden. For more details about the briefing, please see: ht...