Tag: "season" at biology news
Breeding programs should incorporate mate choice
...eries. Like many fish species, during the breeding season
male whitefish develop hundreds ornamental structures called breeding tubercles all over their bodies. Although these tiny, colorless tubercles may look insignificant, they are a powerful predictor of how well a male's young will survive: 12% more em...
NASA researchers developing tools to help track and predict West Nile Virus
... us to knowwhen to start our mosquito-surveillance season
and when toconsider the season
over." Another NASA program, called the International ResearchPartnership for Infectious Diseases (I...
Scientists find insects can alter plant chemistry to help them find mates
... chemicals so that males emerging after the winter season
can recognize when they are on the right stems at ...are in the fields at the right period of the right season
you are never going to see them."...
Researchers find genes connected to seasonal reproductive clock in hamsters
... and whether it differed depending on what season
the hamsters were kept in. The results showed that the three genes were being expressed in other words, they were turned on in the hamsters that were kept constant...
K-State researchers study response of prairie ecosystem
...mount of precipitation received during the growing season
in their experimental plots. "All plots get the same amount of rain, but there are different durations in the dry periods between events and the size of the storms is different," Knapp said of the. "We're changing just the distribution of rain and th...
Shifts in rice farming practices in China reduce greenhouse gas methane
...ning their paddies midway through the rice growing season
when they learned that replacing a strategy of continuous flooding would in fact increase their yields and save water. As an unintended consequence of this shift, less methane was emitted out of rice paddies. Methane is 21 times more potent as a gre...
Biologist unlocks secrets of winter survival
...ist at the bottom of ponds for the duration of the season
without coming up for air. In his new book, "Winter World," University of Vermont biologist Bernd Heinrich offers a fascinating look at the amazing adaptability and ingenuity which in many cases, defy the laws of physics enabling animals large and ...
Researchers identify key pathway in the pupils response to light
...e eye tells the brain whether it's light out, what season
it is, and so on, even in the absence of vision," ...life, including plants. They help tell plants what season
it is and when to flower, and we believe these same kinds of genes also may be working in mammalian ...
Facing extreme ice conditions, coast guard, NSF deploy second icebreaker to Antarctica
...Healy recently conducted a very productive science season
in the Arctic, notably in support of the NSF-supported Western Shelf-Basins Interactions (SBI) project, which is looking for early indicators of climate change in the Arctic Ocean. Researchers on a previous Healy cruise found evidence that the Arctic...
For spinal cord injury patients, new insights for rehabilitation therapy
...about 200,000 others similarly disabled. The peak season
for spinal cord injury is in the summer and is caused primarily by motor vehicle accidents, falls, sports injuries and violence. Paraplegia (the loss of sensation and or movement in the legs and part of the trunk) affects 47 percent of people with sp...
Male groundhogs hibernate less to visit the ladies
... early encounters. "The length of the hibernation season
at a given location appears to be consistent for groundhogs also called woodchucks and is characterized by a predictable timing of immergence and emergence," Zervanos reported in theProceedings of the Fourth International Conference on Genus Marmot...
Hikers may disturb breeding spotted owls
...ut and Steidl studied 10 nests during the breeding season
in Utah's Canyonlands and Capitol Reef national pa...wl habitat during the late Marchearly June nesting season
by limiting hiking or establishing buffers around nest sites. The researchers had previously found t...
Genetically modified crops in India produced greater yields, reduced pesticide use, new study finds
...cing states in India during the seven-month cotton season
that began in June 2001. The field trials were initiated by the Maharashtra Hybrid Seed Company (Mahyco), which has been studying Bt hybrids in India since 1997. The farm sites contained three adjacent plots that measured 646 square meters each. One...
Michigan researcher helps resolve the conflict between exotic birds and eco-tourists
...o, on the banks of the Cuiab River. During the dry season
(June-October) thousands of wood storks move into the area, nesting in densely packed groups at the tops of trees. By the time Bouton arrived, it was clear that regular visits by tourists were already changing the birds' nesting success and breeding ...
USDA Forest Service publishes wildland-urban interface assessment
... in 1998. The complex challenges the 1998 wildfire season
presented to the people who live and work in the wildland-urban interface pointed out the need for more information to support quality decision-making and policy development by local agencies. Other critical issues in the interface relate to land use...
Research reveals use of tree rings and ocean temperature shifts in anticipating megadroughts
...rom physiological stress. Given the longer growing season
associated with global warming, the species present in the region now would be more likely to be replaced by other native and non-native species, producing long-term vegetation changes....
Researchers will no longer be 'snowed' in predicting future avalanches
...st two deaths of the current North American winter season
when an avalanche buried two people last November. "Snow is highly dynamic and we've done years of research on snow stability, but now we feel we have the tools to fill a fundamental gap of knowledge by studying how snow stability changes at various ...
Six-week, six-shot regimen fights hayfever for more than one season
...an have lasting positive effects for more than one season
of ragweed exposure," said Peter Creticos, M.D., a...d for relief medications during the second ragweed season
and these changes were similar to those observed during the initial ragweed season. Other investigat...
The spice of life: Antibody cocktail targets deadly foodborne germs
... recalls, says Sunwoo. Although summer is the peak season
for food contamination, cases can occur throughout the year. Consumers are urged to continue practicing safe-food handling techniques to reduce their chances of developing foodborne illness. People most vulnerable to serious complications from foodbo...
West Nile Virus can cause polio-like symptoms
...s and impaired breathing. "As we head into another season
with this virus, it's very important for doctors to recognize that people with symptoms of sudden muscle weakness or paralysis could have West Nile virus," said the study's lead author, Jonathan Fratkin, MD, of the University of Mississippi Medical C...
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