Tag: "nests" at biology news
Bumblebees make bee line for gardens, National Bumblebee Nest Survey finds
...gardens contain the highest densities of bumblebee nests
per ha), followed by hedgerows, fence lines and woodland edges (20-37 nests/ha). Nest densities were...
Gannet population under threat from global warming
...y flying faster to make sure they dont leave their nests
for too long, but our research shows theyve hit th...eing forced further afield and are away from their nests
for longer. The Leeds researchers are already seeing the numbers of unprotected chicks rise and fear...
Uganda's mountain gorillas increase in number
...o census methodologies such as counting trails and nests
(gorillas construct a nest each night), researchers used genetic analyses as well, specifically because many of the groups were clustered in the same area of the park, which presented survey teams with the risk of double-counting the same individuals...
Human pubic lice acquired from gorillas gives evolutionary clues
...kely got the gorilla's lice from sleeping in their nests
or eating the giant apes, said David Reed, assistant curator of mammals at the Florida Museum of Natural History on the UF campus, one of the study's authors. The research is published in the current edition of the BMC Biology journal. "It certainl...
Cambodian vulture nests offer hope for species
... Conservation Union (IUCN). "We discovered the nests
on top of a hill where two other vulture species were also found, one of whichthe white-rumped vultureis also 'Critically Endangered'," said Song Chansocheat, manager of the Cambodia Vulture Conservation Project, a government project supported by WCS...
Recently discovered species gain protection
...lining cerulean warbler a migratory songbird that nests
in North America. "The area is such a remarkable center of micro-endemism that scientists believe more species may be there waiting to be discovered," said Claude Gascon of Conservation International, who is co-chair of the IUCN/SSC Amphibian Spec...
Bumblebee house warming -- it takes a village
...ve discovered some answers. By exposing bumblebee nests
to a range of temperatures, the researchers found that the workers are effective at buffering the nest from temperature extremes. Some workers specialized in raising the temperature in a nest when they incubated the colony's young developing bees or...
Invasive ants territorial when neighbors are not kin
...m expansive "supercolonies" containing millions of nests
and stretching hundreds of miles. Researchers hav...the lack of aggression between ants from different nests
in the same colony. "Some ecologists have hypothesized that environmental factors act to reduce a...
USGS at The Wildlife Society: From sea-ice change to contaminants to predators and prey
...luding the marbled murrelet (B. marmoratus), which nests
in coastal old-growth conifers from California to ...eld studies, extensive aerial surveys of pairs and nests
were conducted and the fate of over 500 nests
and associated cygnets were monitored. We analyzed dat...
Bird moms manipulate birth order to protect sons
...g and getting them out of the nest quickly because nests
are targets for predators and parasites, he said. ...es start showing up on the adult females, in their nests
and on their nestlings. The exact timing depends on the year. Mites can kill nestlings. "When it...
Ancient raptors likely feasted on early man, study suggests
...eys. They had collected the bones from beneath the nests
of African crowned eagles in the Ivory Coast's Tai...ld be small. But these mangabeys are turning up in nests
more often than chance alone would predict." The finding suggests that birds of this size were quit...
Rapid-fire jaws propel ants to safety
...be especially important given that O. bauri builds nests
in leaf litter, rather than below ground," the researchers write. "Without the subterranean strongholds typical of many ants, temporary escape from predators and ejection of intruders may be essential for this species." To study the ants' movements...
Worker ants store fat to share with colony members during times of need
...colonies under controlled laboratory conditions in nests
for two years, feeding the ants a combination of frozen cockroach and moth eggs, mixed with honey, vitamins, and salt. He then sampled five colonies each of the two different species, and found that, despite similar environments, darker workers and s...
Honeybee decision-making ability rivals any department committee
...ongly for the other site. offered five desirable nests
and found that it took much longer for a quorum to develop at any one site, and takeoff took almost twice as long. To study whether bees always choose the best site, the researchers offered swarms four small and one superior site in size. Although th...
NASA helps researchers diagnose recent coral bleaching at Great Barrier reef
... birds. The adult birds ultimately abandoned their nests
resulting in a population loss in an animal vital to the marine ecosystem. "Rising ocean temperatures are just one of the ever-increasing number of environmental stresses faced by coral reefs in general and the Great Barrier Reef in particular," sai...
No place like home: Ant navigation skills used in robot navigation
...rator", says Knaden. "We have designed artificial nests
where we can observe the ants after they return from their foraging trips in order to test this." What next? The group plan to study other ant species that live in landmark rich areas. "Maybe we will find that such ants rate landmarks more highly an...
Leave it to salmon to leave no stone unturned
...d tip the scales at 45 pounds or more. The biggest nests
are nearly a foot and a half deep and extend up to...ds more than once, being forced to superimpose new nests
on top of old nests
when the females run out of room. Moore's work and the UW's Alaska Salmon Progr...
How to grow a bigger brain
...l Biology. Wild steelhead lay their eggs in gravel nests
on the riverbed. After hatching, the fry, called alevins, stay among the gravel and live off their yolk sac until they emerge as free-swimming fry. In hatcheries, the fish are reared in tanks of clean, well-aerated water, but without environmental fe...
Genetic study shows humans have pushed orangutans to the brink of extinction
...ir study, the researchers collected hair from tree nests
and feces found under nests
or near orangutans encountered along the Kinabatangan River. Two hundred orangutans were identified ...
On the loose: Urban coyotes thrive in North American cities
...o. Also, while coyotes can clean out several goose nests
in one night, they don't actually eat all of the eggs. Rather, they usually carry the eggs away from the nest and bury them, saving the eggs until later, Gehrt said. The prevalence of large packs. Coyotes prefer to hunt alone, but often form packs ...