Stronger Evidence That Global Climate Change Can Reduce The Variety Of Life
...whether natural ormanmade-could further affect the richness of life on Earth beyond the riskalready posed by habitat degradation and other environmental effects." Cronin and coauthor Dr. Maureen E. Raymo, Associate Professor atMassachusetts Institute of Technology, reported in the February 13, 1997,is...Scientists To Study Effects Of Global Warming On Wetlands
...ical energy for natural ecosystems andthat species richness abundance could change depending on how different species react to higher temperatures and moisture. "This could mean changes in the endangered species list," he said. On the other hand, architectural changes in the plant community canopycaus...Good Ergonomics Is Good Economics
... Indeed, the discipline needs both the breadth and richness of these professional backgrounds as well as the education and training in the unique technology of human factors/ergonomics. Human factors/ergonomics professionals have long recognized the tremendous potential of our discipline for improving peopl...Can The Economic Promise Of Drug Discovery Continue To Preserve The Suriname Forest?
...name is in thetop 50 countries in the world in the richness of its biodiversity. Tropical forests have been the source of 60 percent of the anticancerdrugs discovered in the last 10 years and offer a potentially huge economicreason for preserving the forest, based on the $200 billion market forplant-d...Poison-Eating Bugs Strike Gold
The richness of Australia's unique biodiversity has been highlighted with the discovery by scientists from CSIRO and BacTech Pty Ltd, a Perth-based mining biotechnology firm, of indigenous microbes capable of devouring toxic effluent from gold extraction. ...Bison Grazing Increases Biodiversity In Grasslands
...ant species diversity. In one experiment, species richness declined on burned and fertilized areas, whereas grazing maintained diversity under these conditions. In a second experiment, loss of species diversity due to frequent burning was reversed by bison, animals that Collins calls keystone herbivores in ...USGS To Present Diverse Research At ESA Annual Meeting
...NationalPark, Colo. The study examined vegetative richness in sample plots scatteredthroughout the park. The ...invasion, are apparently not. High native species richness does not preventexotic plant species invasions. ("Hot Spots of Native Plant Diversity: Additional ...Salamanders May Reveal Best Way To Manage Forests
...lturaltreatments on terrestrial salamander species richness and relative abundance.Why study the salamander? The greatest density and diversity of salamanders inNorth America occur in the southern Appalachians. They are an important link inthe food chain between tiny insects in the leaf litter and larger ver...Study Demonstrates High Conservation Potential Of Logged Rainforest
...ecover from logging. Overall, the "species richness of small trees in the eight-year loggedsite approached that of unlogged forest," said their Science report, which alsoacknowledged that the reason for this is unclear. It is important to emphasize that these sites "are not going to recoverto ...First North Americans Had Chance To Be Avid Birders
... ideas that the region wasa marginal habitat. "The richness of the avian fauna reflects an environmental richness," saysMcCuaig-Balkwill. "For example, there was not just one species of shorebird butfour different ones indicating a variety of feeding niches in the region." This conclusion is supported by a pl...Team of 200 scientists presents new research that reveals full 'tree of life' for plants
... this planet hasevolved to an astonishing level of richness and complexity in the form of plantsand animals, most of the Earth's life forms are still found in these ancientbacteria-like organisms, according to Mishler. The majority of these organismshave not been identified. To date, scientists have identifie...Biodiversity yields dividends, finds pan-European research
...ctivity decreased linearly with decreasing species richness plant communities grow better in species-rich teams (see Figure). Harvest yields were found to increase when there was a range of plants with different characteristics growing together. Similar patterns occurred in a broad range of European grasslan...New USGS research shows how land use affects amphibians
...tes shows that frog and toad abundance and species richness were low in urban areas but near normal in agricultural areas. "Despite some risks, Midwestern frog populations seem to coexist with agriculture, the dominant land use in the region," Knutson explained. "Amphibian populations in intensive row-cr...Biological legacies a key of ecological rebirth after Mount St. Helens eruption
...ts and animals. In addition, such structures add richness to a recovering site. Without them, all the plants, brush and trees would be uniformly young. With them, the habitat has more complex ecosystem functions and can be used by more kinds of animals. "Animal species dependent upon large decadent trees ...Grasslands, deserts, mountains and fire
...anks as a result of fires. They found that species richness was reduced by burning on an average of two to three species per plot. Does more carbon dioxide mean more plants in the mojave? Should the native plants care? The amount of carbon dioxide in Earth's atmosphere is expected to double before the end...How much of the world do we really see?
...ers argue that we can get the impression of visual richness without holding any of that richness in our heads. Back in 1992, Kevin O'Regan, an experimental psychologist at the French National Centr...Established ecological relationship is flawed says new study
...was believed that the relationship between species richness and land area was scale-invariant; the logarithm o...iate scales (from hectares to 10 km2) that species richness accumulated most rapidly as the size of the area sampled was increased. Professor Mick Crawley comme......New insights about patterns in green-plant species richness have been achieved by combining phylogenetic methods with data from the fossil record and estimates of the timing of ancient events based on molecular variation. This talk reviews patterns of species diversity at three scales: across all flowering pl...... pictures, which are so sparse, we reconstruct the richness of the visual world," Werblin said. "I'm curious how nature selected these 12 simple movies and how it can be that they are sufficient to provide us with all the information we seem to need." While scientists have known that the eye forwards several ...Penn researchers find proteins more dynamic than previously known
...itudes) of motion on a subnanosecond time scale, a richness of variation that was not previously known. Further, when they compared those findings with existing data on other proteins that had been studied at single temperatures, Wand and Lee discovered the same spectrum of motion. This suggests that the ran...