Results 161 to 170 of about 224,713 (209)

Factors affecting blue goose nesting success

Canadian Journal of Zoology, 1971
Blue geese at McConnell River, N.W.T., lost 20% of eggs, mostly late in incubation. Parasitic jaegers and herring gulls were attracted to the colony and were efficient at finding eggs although geese defended their nests strongly. Since egg loss could only occur in the absence of both geese, jaegers, and gulls acted as scavengers rather than predators.
openaire   +2 more sources

How Well Do Artificial Nests Estimate Success of Real Nests?

The Condor, 1998
Artificial nests frequently are used to assess levels and patterns of nest predation, but how well these nests measure rates of predation or trends in predation rates at real nests is unclear. We compared predation rates between 58 active Wood Thrush (Hylocichla mustelina) nests paired with 58 artificial nests designed to resemble Wood Thrush nests ...
Wilson, Gina R., Brittingham, Margaret C., Goodrich, Laurie J.   +2 more
openaire   +1 more source

Nest-Site Characteristics and Nesting Success of the Chestnut Thrush

Ornithological Science, 2018
Nest-site characteristics may affect the daily survival rate of avian nests. We monitored the nests of Chestnut Thrush Turdus rubrocanus breeding in an agricultural landscape near the Lianhuashan Natural Reserve (central China) during the breeding seasons of 2013 and 2014.
Zhao, Qingshan, Sun, Yuehua
openaire   +1 more source

Nest-Site Selection and Nesting Success of Wood Thrushes

1998
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Hoover, Jeffrey P, Brittingham, Margaret Clark   +1 more
openaire   +1 more source

Validity of Using Artificial Nests to Assess Duck-Nest Success

The Journal of Wildlife Management, 1998
Artificial nests have been used in numerous studies of nest success because they can provide adequate sample sizes and be placed in accordance with experimental designs. However, the critical assumption that a strong linear relation exists between success of artificial and natural nests has rarely been tested.
Michael A. Butler, Jay J. Rotella
openaire   +1 more source

Nesting Success Calculated from Exposure

1961
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Suggestions for Calculating Nest Success

1975
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

How Corridors Reduce Indigo Bunting Nest Success

Conservation Biology, 2006
Abstract:  Corridors are a popular strategy to conserve biodiversity and promote gene flow in fragmented landscapes. Corridor effectiveness has been bolstered by the fact that no empirical field studies have shown negative effects on populations or communities.
openaire   +2 more sources

Ecological analyses of nesting success in evening grosbeaks

Oecologia, 1989
We studied the nesting success of Evening Grosbeaks (Coccothraustes vespertinus) inhabiting two areas of the Front Range of the Rocky Mountains of Colorado from 1983-1987. Sixty-four nests were followed during building, incubating, brooding, and fledging; 54.7% were successful (young fledged). The largest number of nests failed during incubation. Nests
Marc, Bekoff, Abby C, Scott, Douglas A, Conner   +2 more
openaire   +2 more sources

Characteristics of successful nest sites for marsh-nesting common terns

Canadian Journal of Zoology, 1987
The relationship between nest site characteristics and nest success during tidal flooding was studied in six New Jersey colonies of marsh-nesting common terns (Sterna hirundo). Most colonies were on high ground with a northeast water exposure, and almost all nests were on mats of dead vegetation.
openaire   +1 more source