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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Does colonization asymmetry matter in metapopulations
TL;DR: A Monte Carlo simulation model is developed that suggests that metapopulation extinctions are more likely when dispersal is asymmetric, and has important implications for managing spatially structured populations, when asymmetric dispersal may occur.
Journal ArticleDOI
Habitat‐specific differences in adult survival rates and its links to parental workload and on‐nest predation
TL;DR: On-nest predation and parental workload during chick rearing combine to largely explain habitat-specific adult survival rates and suggest SHORT field margins and other residual habitat elements to be important for the conservation of farmland passerines breeding in cropland plains.
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Experimental studies of exploitative competition in a grazing stream insect
TL;DR: The result suggests that Glossosoma larvae may compete for food even at densities below those employed in this study, and indicates that a model based solely on exploitation explains nearly as much of the variance in mass as a model incorporating both interference and exploitation.
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Strong personalities, not social niches, drive individual differences in social behaviours in sticklebacks.
Kate L. Laskowski,Alison M. Bell +1 more
TL;DR: It is found that individuals' social foraging behaviour was related to their behavioural type, specifically their shoaling behaviour, and the behavioural types of the members of a group strongly influenced a group's average foraging behaviours.
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Frequency–dependent pollinator foraging in polymorphic Clarkia xantiana ssp. xantiana populations: implications for flower colour evolution and pollinator interactions
TL;DR: It is suggested that a mixture of positive and negative frequency-dependent selection on flower colour occurs in C. xantiana, with the form and intensity of selection varying in space and time with pollinator assemblages, and an unappreciated form of niche partitioning among specialist pollinators is suggested.
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.