On territorial behavior and other factors influencing habitat distribution in birds
TLDR
In this article, the Dickcissel sex ratio is employed as an indirect index of suitability and a sex ratio index was found to be correlated positively with density, consistent with the hypothesis that territorial behavior in males of this species limits their density.Abstract:
This example is provided so that non-theorists may see actual applications of the theory previously described. The Dickcissel sex ratio is employed as an indirect index of suitability. A sex ratio index was found to be correlated positively with density. This is consistent with the hypothesis that territorial behavior in the males of this species limits their density. This study provides a valid example of how the problem can be approached and offers a first step in the eventual identification of the role of territorial behavior in the habitat distribution of a common species.read more
Citations
More filters
Journal ArticleDOI
Sources and Expectations for Hierarchical Structure in Bird-habitat Associations
TL;DR: Hierarchical structure in bird-habitat associations can arise from hierarchical structure in environmental variables and from the scale-dependent responses of birds to habitat as mentioned in this paper, which is expected to result from interactions between variables that differ in grain size (spatial resolution) and frequency, and should occur commonly.
Journal ArticleDOI
Trade-offs in daphnia habitat selection
TL;DR: The results show that the nighttime movement into the surface waters contributes to the fitness of Daphnia, given the costs and benefits associated with the trade-off between food and temperature.
Journal ArticleDOI
Age, plumage brightness, territory quality, and reproductive success in the black-headed grosbeak
Journal ArticleDOI
A model simulating the impact of habitat supply limits on northern pike, Essox lucius, in Hamilton Harbour, Lake Ontario
TL;DR: In this paper, the effects of life-stage habitat supply limits on fish populations were examined using a simple model of northern pike (Esox lucius), and the model has submodels for spawning, fry and juveniles + adults (1+).
Journal ArticleDOI
Fidelity and breeding probability related to population density and individual quality in black brent geese Branta bernicla nigricans.
TL;DR: Estimation of permanent and temporary emigration of black brent geese from the Tutakoke River colony suggests substantial variation in individual quality associated with fitness, which other analyses suggest is strongly influenced by early environment.
References
More filters
Journal ArticleDOI
Principles and Procedures of Statistics.
Book
Animal dispersion in relation to social behaviour
TL;DR: Wynne-Edwards has written this interesting and important book as a sequel to his earlier (1962) Animal Dispersion in Relation to Social Behaviour, and reviewing it has proven to be a valuable task for one who normally is only at the periphery of the group selection controversy.