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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Book ChapterDOI
Movement patterns related to spatial structures
TL;DR: The ability of individuals to move in space, although highly variable between species, is a general characteristic of all organisms and the study of movement patterns deserves a key position within all disciplines of ecology.
Journal ArticleDOI
Variations in adult body mass in roe deer: the effects of population density at birth and of habitat quality
Nathalie Pettorelli,Jean-Michel Gaillard,Guy Van Laere,Patrick Duncan,Petter Kjellander,Olof Liberg,Daniel Delorme,Daniel Maillard +7 more
TL;DR: Long‐term data from 20 roe deer cohorts in a 2600 ha study area with two habitats contrasting in quality are used to analyse the effects of both cohort and habitat quality on adult mass and suggest delayed effects of density at birth on adult body mass probably affect population dynamics.
Journal ArticleDOI
Evolution in heterogeneous environments: Effects of migration on habitat specialization
Joel S. Brown,Noel B. Pavlovic +1 more
TL;DR: SummaryRichard Levins introduced fitness sets as a tool for investigating evolution within heterogeneous environments by considering the evolutionary response of organisms to any scale of habitat heterogeneity, and evolution towards the ESS can be represented with adaptive landscapes.
Journal ArticleDOI
Inadvertent social information in breeding site selection of natal dispersing birds.
TL;DR: It is suggested that differences in breeding synchronicity may induce an equivalent clinal distribution of ISI use, and it is investigated if location cues are the next best source of inadvertent social information used by young prospectors during breeding site choice.
Journal ArticleDOI
Estimating Annual Survival and Movement Rates of Adults within a Metapopulation of Roseate Terns
Jeffrey A. Spendelow,James D. Nichols,Ian C. T. Nisbet,Helen Hays,Grace Cormons,Joanna Burger,Carl Safina,James E. Hines,Michael Gochfeld +8 more
TL;DR: Several multistratum capture-recapture models were used to test various hypotheses about possible geographic and temporal variation in survival, movement, and recapture/resighting probabilities of 2399 adult Roseate Terns (Sterna dougallii) color-banded from 1988 to 1992 at the sites of the four largest breeding colonies of this species in the northeastern USA as discussed by the authors.
References
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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.