Hormonal correlates of reproductive behavior in the cooperatively breeding Harris' hawk (Parabuteo unicinctus)

Persistent Link:
http://hdl.handle.net/10150/277088
Title:
Hormonal correlates of reproductive behavior in the cooperatively breeding Harris' hawk (Parabuteo unicinctus)
Author:
Mays, Nora Ann, 1952-
Issue Date:
1989
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
I correlated the plasma titers of testosterone (T), estradiol (E), luteinizing hormone (LH), progesterone (P), corticosterone (B) and prolactin (Prl) with the reproductive behavior of breeders and adult and juvenal-plumaged helpers of the Harris' Hawk. During nest building, breeding males and adult male helpers had higher T levels than those in immature male helpers. Among females, only breeders had elevated T levels during nest building. During nest building, breeding females had higher E levels than those in adult and immature females helpers. Patterns of LH were similar to those of T and E. Concentrations of P and B varied only with handling time. During incubation, Prl titers were elevated only in breeding males and females. In contrast to other altricial species, all breeders showed no elevation in Prl levels during feeding of young. Among males, adult male helpers had the highest Prl levels while feeding young.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Hawks.; Hormones, Sex.; Sexual behavior in animals.; Breeding.; Birds of prey -- Southwest, New.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Ecology and Evolutionary Biology
Degree Grantor:
University of Arizona
Advisor:
Russell, Stephen M.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleHormonal correlates of reproductive behavior in the cooperatively breeding Harris' hawk (Parabuteo unicinctus)en_US
dc.creatorMays, Nora Ann, 1952-en_US
dc.contributor.authorMays, Nora Ann, 1952-en_US
dc.date.issued1989en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractI correlated the plasma titers of testosterone (T), estradiol (E), luteinizing hormone (LH), progesterone (P), corticosterone (B) and prolactin (Prl) with the reproductive behavior of breeders and adult and juvenal-plumaged helpers of the Harris' Hawk. During nest building, breeding males and adult male helpers had higher T levels than those in immature male helpers. Among females, only breeders had elevated T levels during nest building. During nest building, breeding females had higher E levels than those in adult and immature females helpers. Patterns of LH were similar to those of T and E. Concentrations of P and B varied only with handling time. During incubation, Prl titers were elevated only in breeding males and females. In contrast to other altricial species, all breeders showed no elevation in Prl levels during feeding of young. Among males, adult male helpers had the highest Prl levels while feeding young.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectHawks.en_US
dc.subjectHormones, Sex.en_US
dc.subjectSexual behavior in animals.en_US
dc.subjectBreeding.en_US
dc.subjectBirds of prey -- Southwest, New.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineEcology and Evolutionary Biologyen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorRussell, Stephen M.en_US
dc.identifier.proquest1337971en_US
dc.identifier.oclc22842341en_US
dc.identifier.bibrecord.b17509816en_US
dc.identifier.bibrecord.b17509798en_US
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