Results 211 to 220 of about 17,475 (262)
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Nesting Biology of Mallards in California
The Journal of Wildlife Management, 1996We investigated mallard nesting biology in major wetland complexes in California from 1985 to 1989 to assess current productivity. Study sites were located in the Suisun Marsh, the Central Valley, and the intermountain region of Northeastern California. We located more than 5,500 nests of which 3,903 (70%) were mallard nests. Mallards began laying eggs
M. Robert McLandress +4 more
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Nesting biology and nest re-use ofEulaema nigrita (Hymenoptera: Apidae, Euglossini)
Insectes Sociaux, 1994The nesting behavior of the euglossine beeEulaema nigrita was observed in the laboratory after being transferred from three nests to observation boxes. Nests were re-used by successive generations with more than one female working in each re-use process. Associated females were always of the same generation.
M. L. Santos, C. A. Gar�falo
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Nesting Biology of Hooded Mergansers Using Nest Boxes
The Journal of Wildlife Management, 1990I studied nesting by hooded mergansers (Lophodytes cucullatus) using nest boxes in an area of northcentral Minnesota having no previous nest box management. Boxes were scattered with a median density of about 0.8 boxes per km 2 , and from 39 to 87 nest boxes were examined yearly. Nearly half of the boxes contained merganser eggs each year; nest density
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Nest biology of urban populations of cavity-nesting birds
Contemporary Problems of Ecology, 2009Nesting features of four species of cavity-nesting birds—common starling (Sturnus vulgaris L.), great tit (Parus major L.), common redstart (Phoenicurus phoenicurus L.), and pied flycatcher (Ficedula hypoleuca Pall.)—have been studied in city. Under urban conditions, number of eggs in a nest of a redstart is significantly larger, while for great tit ...
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Nesting Biology of the White-Winged Scoter
The Journal of Wildlife Management, 1981Nesting biology and productivity of white-winged scoters (Melanitta fusca deglandi) were studied on islands in Redberry Lake, Saskatchewan, and Jessie Lake, Alberta, in 1975-76. Males constituted 60% of the prenesting populations. Nest initiation peaked between 8 and 21 June, and most nests were under dense shrubs at least 50 m from the nearest ...
Patrick W. Brown, Mary Ann Brown
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Nesting biology and parental care
1998Abstract The nesting biology of the birds of paradise has not been reviewed previously, in large part due to limited knowledge of the subject. Notwithstanding the fact that the greatest ornithologists of their time eagerly encouraged collectors to seek out the nests and eggs of birds of paradise, few were found until the twentieth ...
Clifford B Frith +3 more
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Breeding and Nesting Biology in Raptors
2018Raptors are limited by suitable breeding habitat, and they have specific nest-site requirements. Habitats of high quality presumably have the resources required to sustain relatively high rates of survival and reproduction. High-quality individuals would occupy territories of higher quality and would have greater fitness.
Luis Tapia, Iñigo Zuberogoitia
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Biology of Nesting Ancient Murrelets
The Condor, 1976The breeding biology of the Ancient Murrelet (Synthliboramphus antiquus) previously has not been studied intensively. Contributions of C. Littlejohn (in Bendire 1895) from Alaska, Ishizawa (1933) from Korea, and Murata (1958) from Japan generally are incomplete and deal only with short periods.
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Breeding Biology and Nesting Success of Palila
The Condor, 1990We studied the breeding biology of Palila (Loxioides bailleui) at 85 nests from 20 April to 14 September 1988. Eggs were laid over a 139-day period and incubation averaged 16.6 days. The female incubated 85.2% of daylight hours and males fed incubating females.
Pletschet, Sandra M., Kelly, Jeffrey F.
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Nesting Biology Of Dolichovespula norvegicoides (Hymenoptera, Vespidae)
1994(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Akre, Roger D., Myhre, E A
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