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
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Journal ArticleDOI
Spatial contagion of predation risk affects colonization dynamics in experimental aquatic landscapes
TL;DR: It is demonstrated that abundance and diversity of colonizing aquatic beetles is a function of both spatial variation in predator presence/absence and risk contagion generated by the proximity of predator patches to predator-free patches.
Journal ArticleDOI
Physiological Ecology Meets the Ideal-free Distribution: Predicting the Distribution of Size-structured Fish Populations Across Temperature Gradients
TL;DR: A habitat selection model that predicts the distribution of size-structured groups of fish in a habitat where food availability and water temperature vary spatially and makes the novel prediction that temperature based size-segregation will be common and that the strength and direction of this segregation will depend on per capita resource renewal rates and the manner in which competitive weight scales with body size.
Book ChapterDOI
Population biology and rarity: on the complexity of density dependence in insect—plant interactions
TL;DR: The study of density dependence concerns the consequences of a population being (at least locally) rare or common, yet the vast majority of the research to date has dealt with only half of this question.
Journal ArticleDOI
Observations on Stream Minnows in a Patchy Environment: A Test of a Theory of Habitat Distribution
Douglas F. Fraser,Thomas E. Sise +1 more
TL;DR: The seasonal habitat use and movement patterns of juvenile and adult Semotilus atro- maculatus and Rhinichthys atratulus, two stream-dwelling cyprinids, were studied to test a prediction that populations tend to be more uniformly distributed over habitat patches as population size increases.
Journal ArticleDOI
Combining demographic and count‐based approaches to identify source–sink dynamics of a threatened seabird
TL;DR: The results suggest that Marbled Murrelets in central California represent a sink population that is stable but would decline in the absence of immigration from larger populations to the north.
References
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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.