Tag: "species" at biology news
Increasing international insect threat to stored food
... book describes how to identify each pest group or species
and summarises the latest information on their biology, ecology, geographical distribution, the damage they cause and their economic importance. Hundreds of colour photographs illustrate the identifying features of the most important beetles, moths, ...
Parasitic cowbirds thrive with a less ruthless strategy than cuckoos
...irds, laying their eggs in the nests of other bird species
and leaving the chick-rearing to another parent. ...to be successful generally among all the 100 or so species
of birds parasitized by cowbirds, Hauber said. "We found in a comparative analysis of 18 different h...
Two-month study of life in mid-Atlantic yields trove of species, new insights & questions
...s and marine life specimens, several thought to be species
never before known to science. Using remotely-oper... has captured or recorded rare and potentially new species
of squid and fish, measured the abundance of life, and advanced knowledge of - while raising new que...
Oldest evidence for processing of wild cereals: starch grains from barley, wheat, on grinding stone
...rain is compared to starch grains from hundreds of species
maintained in a modern reference collection of plants. "We had used starch grain analysis to study the development of agriculture in the tropics, where plant materials are poorly preserved, "explained Piperno. Significant and consistent differences...
NHGRI adds 18 organisms to sequencing pipeline
...ysis group to help determine the optimal number of species
and/or depth of sequence coverage for identifying ... beetle, the flatworm Schimdtea mediterranea, more species
of fruit fly and more species
of fungi. ...
Endangered turtles' trek along ocean currents revealed by satellite
...cks by fishermen has left the 100-million-year-old species
on the brink of extinction in the Pacific and Indian oceans. In the Atlantic their numbers are higher partly due to a ban on longline US fishermen operating in the Ocean's northern section - but the turtles are still being lost at an unsustainable r...
Education, monitoring vital for sport-fish eaters
... attention to fish advisories and make appropriate species
selection, especially if they are of reproductive age, says a U of T researcher. Given environmental concerns about contaminants in the Great Lakes, Professor Donald Cole of U of T's Department of Public Health Sciences and colleagues from Health Can...
Study suggests humans can speed evolution
...ns may have sped up the evolutionary clock for one species
of fish. Cichlid fish are well known to biologist...Lake Malawi are estimated to have formed 1,000 new species
in only 500,000 years, lightning speed in evolutionary terms. But in the 1960s a fish exporter may h...
Manatee population rising in some regions, likely stalled or declining in others
...monitoring," Runge said. "Second, recovery of the species
may largely depend on achieving and maintaining high adult survival rates." Survival Rates One companion study, led by USGS scientist Catherine Langtimm, estimated survival rates of adults and calves. Every year, scientists from sever...
Where the sage-grouse roam
...fueled by cheatgrass in his presentation "Invasive species
and fire cycles in sagebrush steppe ecosystems." ...of sage sparrows, Brewers sparrows, and other bird species
living within 250-meter buffers along roadsides in their paper, "Effect of multiscale habitat change...
Huge market for forest moss raises concerns
...f moss are taken from an area, we aren't sure what species
may grow back in their place," Muir said. "There m...trol the flow of water in forests. Some threatened species
such as the marbled murrelet build their nests in moss mats. And the moss is habitat for hundreds of...
Gulf of Maine marine ecosystem may have entered new phase
... long dominance of predators has given way to many species
playing 'king of the hill,'" says Steneck. "While there is no fear of these species
going extinct," he adds, "entire sections of the food web have become so rare that they no longer pe...
Lehmann lovegrass won't succumb to fire
... native grasslands ever since. Non-native species
can alter ecosystems by supplanting native species. The consequences of having a non-native species
present depend on its characteristics and the way it interacts with the ecological community it's in...
Ants protect plants better when jacked up on nectar
..., because many ants need meat in their diets. Some species
of ants are more aggressive than others, and many plants don't have any choice about which species
visit. Researchers report for the first time that when plants supply ants with nectar, it boosts th...
An exotic grass kills trees by hijacking their water
...o reason why the grass couldn't affect other plant species
in a similar manner. He said, "What makes buffelgrass a potential threat to the foothill palo verdes and other native plants is that it can move into undisturbed habitats and effectively compete for water."...
New England forests at greater risk from air pollution
... Forest Service have turned to the leafy or tufted species
of lichens. Lichens typically live on tree trunks...le, that areas with dirtier air tend to have fewer species
of lichens. The opposite is true for areas with cleaner air. With these models, Will-Wolf and other...
Forest managers can fight invasive species that come with roads
...nly question is how long it will take for invasive species
to colonize a new road. To help answer that quest... of dispersal patterns. Usually, seeds of invasive species
are spread by animals or wind over short distances, but on rare occasions can also be spread over lo...
Duke study disputes idea that trees can 'relocate' quickly in response to climate change
... accepted theory that many of the continent's tree species
migrated rapidly from the deep South as glaciers r... of the Environment and Earth Sciences. "Maybe the species
that are growing far to the north today weren't far to the south during the last glacial," Clark sai...
Warmer weather, human disturbances interact to change forests
...limate were to warm, we project that many northern species
would not be able to reproduce or compete well, and southern species
that are adapted to warmer conditions, such as the oaks and hickories found in southern Wisconsin, w...
A changing landscape may have dire implications for birds
... well be hastening the decline of many native bird species
that breed in forest habitats. The development boo...oads and openings for new houses, many native bird species
are at risk as deep forest breeding habitat is perforated. Using data from the Breeding Bird Surve...
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