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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The mechanisms of interference competition: two experiments on foraging waders
TL;DR: The relationship between forager density and foraging success in two wader species: the red knot and the ruddy turnstone was experimentally determined and the mechanistic basis of the effects of bird density was complex for each of the two species and differed between them.
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Dynamic occupancy models reveal within-breeding season movement up a habitat quality gradient by a migratory songbird
TL;DR: This article used a new indirect method, dynamic site occupancy modeling, to estimate apparent movement of black-throated blue warbler Dendroica caerulescens among sites within a breeding season.
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Nesting density and reproductive success of piping plovers in response to storm- and human-created habitat changes.
TL;DR: Neither reproductive output nor any of its components were correlated with population density, and reproductive output was correlated between the sites despite their different population trajectories, suggesting that the population was primarily regulated by adult survival, emigration, or immigration.
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Cascading impacts of large-carnivore extirpation in an African ecosystem
Justine L. Atkins,Ryan A. Long,Johan Pansu,Johan Pansu,Johan Pansu,Joshua H. Daskin,Arjun B. Potter,Marc Stalmans,Corina E. Tarnita,Robert M. Pringle +9 more
TL;DR: Experiments showed that changes in prey behavior were reversible when signs of predator activity were introduced, supporting the impact of the predator loss and providing mechanistic detail about the importance of the "landscape of fear" perceived by prey animals.
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Effects of food supply, hunger, danger and competition on choice of foraging location by the fifteen-spined stickleback, Spinachia spinachia L.
Marion I. Croy,Roger N. Hughes +1 more
TL;DR: Fifteen-spined sticklebacks behave in accordance with the ‘energy maximization premise’, subject to the constraints that risks of starvation and predation are minimized and that adjustments must be made towards competitors.
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.