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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Empirical evidence for complex source-sink dynamics with alternative states in a butterfly metapopulation
TL;DR: The recolonization of the former sources by migrants from extant populations in the former pseudosinks is described, suggesting that asymmetric constraints on dispersal, due to temporal structure, may be a mechanism for complex source–sink dynamics in herbivorous insects and possibly other animals.
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Differential predation and growth rates of bay scallops within a seagrass habitat
TL;DR: Individual scallops appear to trade off higher predation risk for increased growth rates, and may not be set by larval settlement patterns, unlike most bivalves.
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Testing resource-based models of patchiness in four Neotropical litter ant assemblages
TL;DR: It is suggested that resources in the litter, most notably nest sites, may limit local patchiness, but that there is little evidence for food depletion, and the unstable litter environment may preclude tropical litter ant colonies from growing large or populous enough to saturate their environment.
Journal Article
Measuring the ghost of competition: Insights from density-dependent habitat selection on the co-existence and dynamics of lemmings
TL;DR: The asymmetric competition for habitat yields spectacular new kinds of isolegs categorizing habitat competition between co-existing species and Regardless of whether lemming habitat use reflects true or apparent competition, the associated densitydependent differences in habitat preference are likely to have major consequences for the nonstable dynamics of lemmings and non-linear lemsing isoclines.
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The Regulation of Seabird Colony Size: A Hinterland Model
TL;DR: An alternative model of population regulation of seabird colonies is developed, based on the notion that colony size is related to the amount of foraging habitat used by the colony (Diamond 1978), which assumes that birds recruiting as first breeders choose the colony in which feeding conditions are most favorable.
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.