New study finds that the nutritional value of prey within a single species can widely vary, offering key insights for food web dynamics and ecosystem change The hunt is on and a predator finally zeroes in on its prey. The animal consumes the nutritious meal and moves on to forage for its next target. But how much prey does a predator need to consume? Following a period of massive starvation among animals living along the California coast, University of California…
The new approach, described in the journal Global Change Biology, takes into account many factors not included in previous methods, the researchers report.There is an urgent need to accurately assess whether particular land-use projects will increase or decrease greenhouse gas emissions, said Kristina Anderson-Teixeira, a postdoctoral researcher in the Energy Biosciences Institute at Illinois and lead author of the new study. The greenhouse gas value (GHGV) of a particular site depends on qualities like the number and size of plants; the ecosystem’s ability to take up or release greenhouse gases over time; and its vulnerability to natural disturbances, such as fire or hurricane damage, she said….
“Sunken oil is difficult to 'see' because sensing techniques show only a small space at a point in time. Moreover, the oil may re-suspend and sink, with…
Newborn dairy calves get crucial vitamin D in the colostrum from their mothers as they nurse during the first few days after birth. Later, the neonatal calf…
The first multi-century drought reconstruction that includes Morocco, Algeria and Tunisia shows frequent and severe droughts during the 13th and 16th centuries…
For marine iguanas living in the Galapagos Islands, an El Niño can be deadly. Some die from starvation while others survive. Scientists have long believed that…
The king of the savanna appears to be the termite, say ecologists who've found that these humble creatures contribute mightily to grassland productivity in…
Before 24 hours had elapsed, Bandu had already dissipated because of cooler waters, higher wind shear and drier air in the Gulf of Aden. It curved southwest…
The flow of particles, although seemingly random, can be characterized more effectively, according to work done by Virginia Tech's Shane Ross of the…
New reports are surfacing every day about the immediate impacts of the Deepwater Horizon oil spill on Gulf Coast wildlife, especially as the oil reaches the…
The flow of particles, although seemingly random, can be characterized more effectively, according to work done by Virginia Tech’s Shane Ross of the…
“In some areas there will indeed be masses, and there will be big masses of grasshoppers,” said Richard Zack, an associate professor of Entomology at…
Agricultural Research Service (ARS) plant pathologist Robert Brown, working in collaboration with Abebe Menkir at the International Institute of Tropical…
Together with colleagues, they've devised new analytical procedures for rapidly detecting and measuring phytonutrient concentrations in the tubers. Phytonutrients are plant compounds that are of particular interest for their potential to help diminish the risk of cardiovascular disease, respiratory problems and certain cancers, note Roy Navarre and Chuck Brown, geneticists with the ARS Vegetable and Forage Crop Research Unit in Prosser….
TRMM not only measures rainfall intensity from space but can also give scientists an idea about the height of a thunderstorm that is generating the rainfall…
At 1500 UTC (11 a.m. EDT), Tropical Storm 2A was packing maximum sustained winds near 45 knots (52 mph). Tropical storm-force winds extend out to 45 miles from…
Now, in the first study of its kind, Stanford University researchers have tracked a plume of polluted groundwater from a septic system to one of Northern…
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