Experimental evidence for homeostatic sex allocation after sex-biased reintroductions

First principles predict negative frequency-dependent sex allocation, but it is unproven in field studies and seldom considered, despite far-reaching consequences for theory and practice in population genetics and dynamics as well as animal ecology and behaviour. Twenty-four years of rhinoceros calv...

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Bibliographic Details
Published in:	Nature ecology & evolution Vol. 1; no. 4; p. 88
Main Authors:	Linklater, Wayne Leslie, Law, Peter Roy, Gedir, Jay Vinson, du Preez, Pierre
Format:	Journal Article
Language:	English
Published:	London Nature Publishing Group UK 06-03-2017 Nature Publishing Group
Subjects:	631/158/1745 631/158/672 631/158/857 Bias Biological and Physical Anthropology Biomedical and Life Sciences brief-communication Ecology Evolution Evolutionary Biology Females First principles Frequency dependence Genetics Life Sciences Males Offspring Paleontology Population Population dynamics Population genetics Reintroduction Rhinocerotidae Sex Sexes Zoology
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Summary:	First principles predict negative frequency-dependent sex allocation, but it is unproven in field studies and seldom considered, despite far-reaching consequences for theory and practice in population genetics and dynamics as well as animal ecology and behaviour. Twenty-four years of rhinoceros calving after 45 reintroductions across southern Africa provide the first in situ experimental evidence that unbalanced operational sex ratios predicted offspring sex and offspring sex ratios. Our understanding of population dynamics, especially reintroduction and invasion biology, will be significantly impacted by these findings. A long-term rhinoceros experiment demonstrates that unbalanced operational sex rations predict offspring sex and offspring sex ratios.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2397-334X 2397-334X
DOI:	10.1038/s41559-017-0088