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The Florida Scrub Jay (MPB-20), Volume 20

Demography of a Cooperative-Breeding Bird. (MPB-20)

Glen Everett Woolfenden, John W. Fitzpatrick

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Princeton University Press img Link Publisher

Naturwissenschaften, Medizin, Informatik, Technik / ÷kologie

Beschreibung

Florida Scrub Jays are an excellent example of a cooperative-breeding species, in which adult birds often help raise offspring not their own. For more than a decade Glen E. Woolfenden and John W. Fitzpatrick studied a marked population of these birds in an attempt to establish a demographic base for understanding the phenomenon of "helping at the nest." By studying both population biology and behavior, the authors found that habitat restraints, rather than kin selection, are the main source of the behavior of Florida Scrub Jays: the goal of increasing the number of close relatives other than descendants in future generations is of relatively minor importance in their cooperative-breeding behavior.


The Florida Scrub Jay lives only in the Florida oak scrub. All acceptable habitat is constantly filled with breeders. Each year about half of the pairs are assisted by one to several nonbreeding helpers. This book provides extensive data on fecundity, survivorship, relatedness, and dispersal to establish the demographic milieu and to address questions arising out of observed helping behavior--whom, how, when, and why the helpers help.

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American kestrel, Carolina wren, Breeding pair, Palm warbler, Mexican jay, Longevity, Merlin (bird), E. O. Wilson, Arabian babbler, Common yellowthroat, Reproductive value (population genetics), University of South Florida, Probability, Pinyon jay, Survivorship curve, Pair bond, Tit (bird), Mockingbird, Passerine, Sandhill crane, Bird, Eastern screech owl, Inclusive fitness, Kin selection, Cooperative breeding, Demography, Eurasian magpie, Bachman's sparrow, Loggerhead shrike, Steller's jay, Millipede, Cooper's hawk, Egg, Magnolia virginiana, Brood patch, Mottled duck, Predation, Mourning dove, Southwestern United States, Foraging, Female, Florida scrub jay, Calculation, Florida scrub, Gallberry, Bird egg, Mortality rate, Reproductive success, Result, Hymenoptera, Sex ratio, Nesting season, Aphelocoma, Fecundity, Lake Okeechobee, Yearling (horse), Blue jay, Coefficient of relationship, Tasmanian nativehen, Brown jay, Harris's hawk, Inbreeding, Northern bobwhite, Polymorphism (biology), The Yearling, Brood (honey bee), Life table, Sociality, Breeding season, Year