Waterfowl Sex Ratios during Spring in Washington State and Their Interpretation

Johnsgard, Paul A.; Buss, Irven O.

doi:10.2307/3797149

Cited by 10 publications

(13 citation statements)

References 17 publications

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“…The evidence for grouse conforms to the sexual selection theory and conflicts with Wiley's hypothesis. Several species of promiscuous grouse are no more dimorphic in size than monogamous grouse (data in Johnsgaard, 1973;Wiley, 1974), showing that sexual size dimorphism is not a necessary prerequisite for promiscuity to evolve. More importantly, males do not survive better than females in dimorphic species.…”

Section: Precocial Birdsmentioning

confidence: 99%

“…It occurs in the great snipe (Gallinago media) (Swanberg, 1965;Ferdinand, 1966), the American woodcock (Philohela minor) (Pitelka, 1943;Sheldon, 1967), the ruff (Philomachus pugnax) (Hogan-Warburg, 1966), the pectoral sandpiper (Calidris melanotos) (Pitelka, 1959;Pitelka et al, 1974), and the buff-breasted sandpiper (Tryngites subruficollis) (Pitelka et al, 1974) among shorebirds, in Argus pheasants (Rheinartia and Argusianus) (Beebe, 1926;Delacour, 1951) among gallinaceous birds, in some populations of the great bustard (Otis tarda) (Gewalt, 1959;Lukschanderl, 1971) and little bustard (0. tetrax) (Dement'ev and Gladkov, 1967), and in Muscovy ducks (Gairina moschata) and musk ducks (Biziura lobata) among waterfowl (Delacour, 1954(Delacour, -1964Johnsgaard, 1965;Lack, 1968). Pitelka et al (1974) associated promiscuity in shorebirds with spatiotemporally variable food resources and an opportunistic breeding strategy.…”

Section: Precocial Birdsmentioning

confidence: 99%

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The Evolution of Mating Systems in Birds and Mammals

Wittenberger

1979

Social Behavior and Communication

154

120

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Section: Precocial Birdsmentioning

confidence: 99%

Section: Precocial Birdsmentioning

confidence: 99%

The Evolution of Mating Systems in Birds and Mammals

Wittenberger

1979

Social Behavior and Communication

154

120

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“…The evidence for grouse conforms to the sexual selection theory and conflicts with Wiley's hypothesis. Several species of promiscuous grouse are no more dimorphic in size than monogamous grouse (data in Johnsgaard, 1973;, showing that sexual size dimorphism is not a necessary prerequisite for promiscuity to evolve. More importantly, males do not survive better than females in dimorphic species.…”

Section: Precocial Birdsmentioning

confidence: 99%

“…It occurs in the great snipe (Gallinago media) (Swanberg, 1965;Ferdinand, 1966), the American woodcock (Philohela minor) (Pitelka, 1943;Sheldon, 1967), the ruff (Philoma-chus pugnax) (Hogan-Warburg, 1966), the pectoral sandpiper (Calidris melanotos) Pitelka et al, 1974), and the buff-breasted sandpiper (Tryngites subruficollis) (Pitelka et al, 1974) among shorebirds, in Argus pheasants (Rheinartia and Argusianus) (Beebe, 1926;Delacour, 1951) among gallinaceous birds, in some populations of the great bustard (Otis tarda) (Gewalt, 1959;Lukschanderl, 1971) and little bustard (0. tetrax) (Dement'ev and Gladkov, 1967), and in Muscovy ducks (Gairina moschata) and musk ducks (Biziura lobata) among waterfowl (Delacour, 1954(Delacour, -1964Johnsgaard, 1965;Lack, 1968). Pitelka et al (1974) associated promiscuity in shorebirds with spatiotemporally variable food resources and an opportunistic breeding strategy.…”

Section: Precocial Birdsmentioning

confidence: 99%

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Social Behavior and Communication

Marler¹,

Vandenbergh²

1979

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Main entry undcr titlc: Social behavior and communication. (Handbook of bchavioral neurobiology; v. 3) Includes bibliographics and index. l. Social behavior in anima.ls. 2. Animal communication. I. Marler, Peter Robert. II. Vandenbergh,J. G. nI. Serie,. QL775.S6 599'.05'9 79·308 ISB N 978-1-46 15-91 18-4 ISBN 978-1-4615·9 11 6-0 (eBook) e 1979 Ple num Press, New York Softcover reprint of the bardcover 1st edition 1979 All rights reserved No part of this boo k may be reproduccd, storcd in a retrieval sySlcm, or transmitted, in any fonn or by any mcans, electronic, mechanical, photocopying, microfilming, recording, or otherwise, without written permission from thc Publisher v ix PREFACE x PREFACEwith which it interacts. We thank the authors for their cooperation and forbearance in the gestation process. Of many colleagues who have aided us in its preparation, we are especially indebted for help and advice to

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Estimating adult sex ratios in nature

Ancona

Dénes

Krüger

et al. 2017

Phil. Trans. R. Soc. B

111

123

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Adult sex ratio (ASR, the proportion of males in the adult population) is a central concept in population and evolutionary biology, and is also emerging as a major factor influencing mate choice, pair bonding and parental cooperation in both human and non-human societies. However, estimating ASR is fraught with difficulties stemming from the effects of spatial and temporal variation in the numbers of males and females, and detection/capture probabilities that differ between the sexes. Here, we critically evaluate methods for estimating ASR in wild animal populations, reviewing how recent statistical advances can be applied to handle some of these challenges. We review methods that directly account for detection differences between the sexes using counts of unmarked individuals (observed, trapped or killed) and counts of marked individuals using mark-recapture models. We review a third class of methods that do not directly sample the number of males and females, but instead estimate the sex ratio indirectly using relationships that emerge from demographic measures, such as survival, age structure, reproduction and assumed dynamics. We recommend that detection-based methods be used for estimating ASR in most situations, and point out that studies are needed that compare different ASR estimation methods and control for sex differences in dispersal.This article is part of the themed issue 'Adult sex ratios and reproductive decisions: a critical re-examination of sex differences in human and animal societies'.

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Waterfowl Sex Ratios during Spring in Washington State and Their Interpretation

Cited by 10 publications

References 17 publications

The Evolution of Mating Systems in Birds and Mammals

The Evolution of Mating Systems in Birds and Mammals

Social Behavior and Communication

Estimating adult sex ratios in nature

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