Results 51 to 60 of about 136,603 (185)

Postfledging Survival, Movements, and Dispersal of Ring Ouzels (Turdus torquatus) [PDF]

open access: yes, 2013
We thank Invercauld Estate for cooperation with access to Glen Clunie. S. Redpath, J. Wilson, and S. Roos provided valuable comments on the manuscript. This study was funded by the Royal Society for the Protection of Birds, Scottish Natural Heritage, and
Eaton M. A.   +10 more
core   +1 more source

Nest Change and Individual Fitness in a Scopoli’s Shearwater Population: A Capture-Recapture Multistate Analysis

open access: yesDiversity, 2023
Seabirds are compelled to nest on land, away from their feeding areas, which they can only reach by leaving eggs or chicks in the nest, often for long periods of time.
Massimo Sacchi   +7 more
doaj   +1 more source

Fence and plough for Lapwings: Nest protection to improve nest and chick survival in Swiss farmland [PDF]

open access: yes, 2013
Switzerland had up to 1000 Lapwing pairs breeding in the 1970s. Actually, there are some 200. The crash was mainly due to a poor productivity of 0.2 to 0.4 fledglings per pair and year.
Koller, Andreia   +2 more
core  

Influence of patch shape on mallard nest survival in northern Iowa

open access: yesWildlife Society Bulletin, 2016
Reproductive success of mallards (Anas platyrhynchos) is influenced by distribution and amount of wetlands and grasslands on the landscape during the breeding season.
Rolf R. Koford   +5 more
doaj   +1 more source

A Comparison of Nest Survival Between Cliff- and Tree-nesting Golden Eagles [PDF]

open access: yesJournal of Raptor Research, 2016
Comparacion de la Supervivencia Del Nido Entre Individuos de Aquila chrysaetos Que Nidifican En Roquedos O En Arboles Aquila chrysaetos elige numerosos sustratos diferentes sobre los que construir sus nidos, incluyendo roquedos, arboles, estructuras artificiales y el suelo. Sin embargo, A.
Ross H. Crandall   +2 more
openaire   +1 more source

Nest site selection and nest survival of Black-backed Woodpeckers after wildfire [PDF]

open access: yesThe Condor, 2019
Abstract Recently burned coniferous forests host wildlife communities that respond to variation in burn severity, post-fire habitat structure, and patch configuration. Habitat selection theory predicts that birds inhabiting these variable post-fire landscapes will select nesting locations that confer an adaptive advantage through ...
Andrew N Stillman   +5 more
openaire   +3 more sources

Reintroduction of North Island robins to Paengaroa Scenic Reserve : factors limiting survival, nest success, and population viability in a mainland restoration area : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Ecology at Massey University [PDF]

open access: yes, 2001
Forty North Island robins (Petroica australis longipes) were reintroduced to Paengaroa Scenic Reserve in March 1999. I monitored the survival and breeding success of this population for two years post-release.
Raeburn, Elizabeth Helen
core  

Nest predation in Afrotropical forest fragments shaped by inverse edge effects, timing of nest initiation and vegetation structure [PDF]

open access: yes, 2014
High levels of nest predation influence the population dynamics of many tropical birds, especially when deforestation alters nest predator communities. The consequences of tropical forest fragmentation on nest predation, however, remain poorly understood,
Callens, Tom   +4 more
core   +2 more sources

Kin-selected siblicide and cannibalism in the European earwig [PDF]

open access: yes, 2017
Aggression levels among individuals can severely increase under high density or shortage of crucial resources, sometimes resulting in individuals killing conspecifics.
Dobler, Ralph, Kölliker, Mathias
core  

Polygamy in the Marsh Harrier, Circus aeruginosus: Individual Variation in Hunting Performance and Number of Mates [PDF]

open access: yes, 1982
1. Theories postulating that sexual task differentiation may lead to polygamy such that the sex investing the least effort in raising the offspring, engages in simultaneous matings, contrast with polygyny in raptors where the male provides most of the ...
Altenburg, Wibe,   +3 more
core   +1 more source

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