Tag: "ecological" at biology news
Alternative states in the ocean
...scape further predation. The study emphasizes the ecological
importance and generality of size escapes, a mechanism also characterizing potentially permanent transformations of terrestrial grasslands to forests....
Earth, sky tapped in unique global climate change study
...ay help scientists worldwide better understand the ecological
impact of global climate change. It's an ecosystem where native plants must react to rain and temperature extremes along a dusty, winding road under an intricate, watchful plan of three Texas Agricultural Experiment Station scientists. Thick white ...
Model shows long-held constant in ocean nutrient ratio may vary as ecological conditions change
...ould actually vary in the future depending on the ecological
scenarios that affect competition for resources am... subject to change." As is the case in many other ecological
studies, researchers in this study had to confront the natural variability found in nature. "This i...
Adaptation, niche conservatism, and convergence
...botanical information, highlight the importance of ecological
processes in concert with adaptive evolution in shaping the form and function of organisms in modern communities....
Fire ant killing protozoa found in 120 Texas counties
...questions because ants play a critical role in the ecological
balance. The predatory types kill and eat many other insects, both harmful and beneficial. Though small individually, collectively ants can make a huge impact. Worldwide, a figure for ants comprising 15 percent of all terrestrial animal biomass is no...
World's oldest modern hummingbirds described in Science
...icas, has no clear answer. Mayr, however, suspects ecological
competition with other birds or with insects....
Jennie Hunter-Cevera wins 2004 USFCC/J. Roger Porter Award
...products in the process. She began a program using ecological
factors as a way to screen microorganisms living i...octoral student, Hunter-Cevera initiated the first ecological
computer database for comparative analyses of species and habitat relationships at Rutgers Universit...
Biological oceanographers examine 'regime shifts' in complex marine ecosystems
...ime shifts in ecosystems and use oceanographic and ecological
theory to shed light on the relationships between forcing and response variables. The focus of the paper is to establish a theoretical basis for the occurrence of regime shifts in the ocean. Our understanding of regime shifts relies on observations ...
Newfound grasshopper takes to the trees on Konza Prairie
...student collected the insect as part of an ongoing ecological
study of grasshopper diversity on Konza called "Schoolyard LTER," short for Long-Term Ecological Research, a program funded by the National Science Foundation. The rare tree-dweller has now been positively identified as the Grizzly ...
Rutgers ecologists and Brooklyn Botanic Garden botanists to plan Beijing Olympics Forest Park
...and planning company, the CURE team formulated the ecological
basis of the new park, including lake, stream, mea... the vast site. CURE was invited to contribute the ecological
and botanical components of the competition entry by Sasaki Associates, based in Boston, who coordin...
Study reveals poor Houston air quality
...ts of potential health problems for people and the ecological
systems in the area."...
Sticklebacks reveal secrets to evolutionary change in Stanford study
...separated population evolving in response to local ecological
conditions. A handful of the thousands of populations around the world lost their hind fins and associated spines, probably to avoid local predators that grabbed the fish by those spines. Kingsley, who is also an associate investigator with the Howar...
Study marks increased trends in infectious disease occurrences in our oceans
...zed trends in the scientific literature to test an ecological
hypothesis. The study found increased reports in scientific literature of disease outbreaks for turtles, corals (non-infectious bleaching), mollusks, mammals and urchins, said Dr. Kevin Lafferty, a USGS marine ecologist in Santa Barbara, Calif., and ...
Conservation International & SC Johnson invest in Ecuador's rainforest to offset climate impacts
...Mache-Chindul Ecological Reserve is a 300,000-acre ecological
reserve established by Ecuador's Ministry of the Environment in August 1996 and contains the Laguna de Cube which was declared a "Wetland of International Importance" by the Ramsar Convention of Wetlands in 2002. These types of restoration efforts a...
New book urges ecologists to think 'outside the helmet'
... In the book, though, the authors say the old ecological
niche theory has about as much relevance to modern...'re trying to resurrect niche theory in the modern ecological
world," said Chase. "The old theory is based on a species' ability to carve out its own ability to ...
Four IU professors are 2004 Guggenheim Fellows
...ded the honor to Rieseberg and coauthors of "Major ecological
transitions in wild sunflowers facilitated by hybridization," published last year in the journal Science....
Scientists question reports of massive ant supercolonies in California and Europe
...r genetic diversity," Ingram said. "There are also ecological
factors contributing to the ants' success." Gordon agreed, pointing to an experiment by North Carolina State University in which researchers were able to turn nonaggressive nestmates into combatants simply by changing their diet. "It s...
Female gluttony blamed on male tick
...o treat ticks is pesticides, which often come with ecological
problems and may affect the meat, said Kaufman....
Three new South American fish identified
...," he said. "And yet the more you know about their ecological
role, the better you are able to know in detail what makes up an ecosystem." Geophagus, for example, may be vital to their ecosystem because they constantly stir the river bottoms, scooping up and sifting sand in their mouths to find invertebrates t...
Ferns diversified in shadow of flowering plants
...ome 144 million years ago, ferns took advantage of ecological
niches in the new angiosperm forests to diversify ...ls, including humans. As a result of such dynamic ecological
opportunism, ferns now comprise more than 10,000 living species, making them the second largest grou...
1 2 3 4 5 6 7 8 9 10