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Tag: "nesting" at biology news

Rare soft-shell turtle, nesting ground found in Cambodia

...bras,?Emmett said. The researchers also found a nesting ground for the species and brought back eggs that ... plan to employ local community members to protect nesting beaches for the turtles and to conduct patrols during the dry season to prevent illegal fishing of t...

Cambodian vulture nests offer hope for species

...sents one of the only known slender-billed vulture nesting areas in the world, and therefore one of the last chances for recovery for the species, now listed as "Critically Endangered" by the World Conservation Union (IUCN). "We discovered the nests on top of a hill where two other vulture species were ...

Turtles are loyal in feeding as well as in breeding

...foraging sites and migratory routes as they are to nesting sites. Published today (25 April) in the journal P...r team tracked twenty green and loggerhead turtles nesting at two beaches on Cyprus, using satellite transmitters. All females tracked for more than six months...

Climate change creates dramatic decline in red-winged black bird population

...ogical patterns like earlier migration and earlier nesting of birds. "When you first start out, you don't ... of red-winged black birds in order to track their nesting habits. They winter in southeastern United States. In mid-July they become gregarious and switch fro...

Disappearing nest egg: Researcher studying declining numbers of macaws

... up to 100 feet high," Brightsmith confirms. "So nesting areas and food sources for macaws are being eliminated." Other prime macaw nesting grounds are being lost by logging and clearing the land for agriculture, he adds. Brightsmith will r...

Mother birds give a nutritional leg up to chicks with unattractive fathers

... maximize the reproductive output from the current nesting effort." ...

New strategy developed to combat West Nile Virus

... triggered by a complex interaction of mosquitoes, nesting birds and specific weather patterns, scientists sa... These moist hammocks also happen to be the spring nesting and roosting sites of many species of wild birds, which act as hosts and carriers for the diseases. ...

Recent, rapid climate change is driving evolution of animal species

...birds) are migrating and arriving earlier to their nesting grounds; and, North American mosquitoes living in the water-filled leaves of carnivorous plants are using shorter, more "southern" day lengths to cue the initiation of larval dormancy. In contrast, the authors write that no studies have found geneti...

All the eggs in one basket

... turtle populations on many historically important nesting beaches are overlooked by conservation assessments that focus instead on the few large nesting sites that remain. The study, "Conservation implications of historic sea turtle nesting beach loss,"...

A dichotomy in migration patterns found for sea turtles in east Atlantic

...y in turtle behavior: While some turtles leave the nesting grounds to feed on bottom-dwelling sea life in shallow coastal waters, others leave Cape Verde to roam the much deeper open ocean along the African coast and exhibit a distinct feeding strategy. Interestingly, while adults compose both groups, the co...

How satellite tracking revealed the migratory mysteries of endangered Atlantic loggerhead turtles

..., West Africa, which is one of the world's largest nesting sites for loggerheads and a hotspot for industrial...thought. The team tracked the turtles as they left nesting sites, following them for up to two years over ranges that covered more than half a million square k...

Not just the birds

...ts (Rattus norvegicus) reduced the number of birds nesting on the islands. Arctic foxes were introduced in the late 1800's to maintain the North Pacific fur trade, and later removed in an attempt to return the islands to their more natural states. Most of the islands are now fox-free, but the effects of th...

African amphibians make extreme parental sacrifice: The skin off their backs

...plastic boxes filled with soil to simulate natural nesting conditions. Then they observed and videotaped interactions between young and their mothers. "We observed eight episodes of skin feeding by different young from five different broods," Nussbaum said. "In each episode, the young moved over and around...

Penguins waddle but they don't fall down, UH researchers say

... miles across rugged ground terrain to reach their nesting sites. Kurz believes the penguins have learned to use the waddling motion in a way that makes their movements more efficient, adjusting for the limitations of the size of their legs and their weight. Humans, on the other hand, have not developed su...

Primates harvest bee nests in Ugandan reserve

...enting effects of pollen and nectar collecting and nesting ecology on native-American stingless bees. Kajobe invited Roubik to visit the Bwindi-Impenetrable National Park in southwestern Uganda, where African honeybees coexist with five or more species of honey-making stingless bees in their native habitat....

Overfishing may drive endangered seabird to rely upon lower quality food

...ugh April breeding season, and another after their nesting period ends between August and September. Brown-ti...ng a double whammy. Not only are they losing their nesting habitat, they're also experiencing a degraded prey environment." The researchers pointed out that t...

Pulp mill devastates swans' sanctuary in Chile

... and the white-faced Ibis. It was also the largest nesting area in South America for the black necked swan, the region's iconic species and a major tourist attraction. "This was an area that was once teeming with water birds," added David Tecklin, WWF's Valdivia ecoregion coordinator. "Now, within the space...

The ecological effects of the Chernobyl disaster

...in in the area, as well as examining age, sex, and nesting preferences to determine the amounts and types of ...ow quantities of 90Sr and 137Cs vary with feeding, nesting and migration habits. Timothy Mousseau will present "Consequences of radiation for reproduction and...

DNA from feathers tells tale of eagle fidelity

...orming DNA analysis on the feathers left behind at nesting sites, the researchers were able to identify individual Eastern imperial eagles in a nature reserve in Kazakhstan. Their analysis showed that not one adult strayed from its mate - a degree of fidelity highly unusual among birds, the vast majority of ...

Ants, not evil spirits, create devil's gardens in the Amazon rainforest, study finds

...lowing the ant colony to expand as it occupies new nesting sites in the saplings," Frederickson explains. To...stems, called domatia, which are the ants' primary nesting sites. Artificial domatia were constructed out of foil-wrapped test tubes partially filled with cott...

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