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Habitat selection determines an animal's spatial distribution at various scales. In ground-breeding birds, selecting the right nesting location can be decisive for the survival of parents and offspring. However, it remains often unclear what cues birds use to settle in their breeding habitat.
View Article and Find Full Text PDFThe importance of viewshed in nest site selection of a ground-nesting shorebird.
PLoS One
February 2025
Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, United States of America.
Birds and their nests are vulnerable to predation during the breeding season. Many birds have evolved nest placement strategies that minimize risk such as concealing nests in vegetation, or nesting in inaccessible cavities or on cliffs. Some ground-nesting species choose open areas where vegetative concealment or physical protection is minimal.
View Article and Find Full Text PDFShelter Distribution and Type Affect Space Use of a Desert Reptile.
Ecol Evol
February 2025
Arizona Game and Fish Department Phoenix Arizona USA.
Animal home ranges derive from the distribution of resources across the landscape. For example, home ranges of most tortoise species in the United States revolve around networks of burrows. However, human disturbances that damage shelters can decrease habitat suitability, individual survival, and population persistence.
View Article and Find Full Text PDFSexual Offspring Production by Acorn Ant Colonies Is Associated with the Colony Size but Not with the Volume of the Nest Cavity.
Animals (Basel)
December 2024
Institute of Biology, University of Opole, Oleska 22, 45-052 Opole, Poland.
Nest sites are important for ants, as the nests provide refuge against enemies and ensure optimal conditions for the brood development. As the construction of a nest is a time and energy consuming activity, many ant species dwell in ready-for-use cavities. For them, choosing a good nest site is important, as the quality of nest site could affect factors such as the energy allocation and production of sexual individuals.
View Article and Find Full Text PDFAdult Sex-Ratio Bias Does Not Lead to Detectable Adaptive Offspring Sex Allocation Via Nest-Site Choice in a Turtle With Temperature-Dependent Sex Determination.
Ecol Evol
November 2024
Departments of Fisheries and Wildlife & Integrative Biology, W.K. Kellogg Biological Station Michigan State University Hickory Corners Michigan USA.
Sex-ratio theory predicts that parents can optimise their fitness by producing offspring of the rare sex, yet there is a dearth of empirical evidence for adaptive sex allocation in response to the adult sex ratio (ASR). This is concerning, as anthropogenic disruption of the sex ratios of reproductive individuals threatens to cause demographic collapse in animal populations. Species with environmental sex determination (ESD) are especially at risk but may possess the capacity to adaptively influence offspring sex via control over the developmental environment.
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