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Androgen changes and flexible rutting behaviour in male giraffes

Seeber, Peter; Duncan, Patrick; Fritz, Hervé and Ganswindt, André (2013). Androgen changes and flexible rutting behaviour in male giraffes. Biology Letters, 9(5), article no. 20130396.

DOI (Digital Object Identifier) Link: https://doi.org/10.1098/rsbl.2013.0396
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Abstract

The social organization of giraffes (Giraffa camelopardalis) imposes a high-cost reproductive strategy on bulls, which adopt a 'roving male' tactic. Our observations on wild giraffes confirm that bulls indeed have unsynchronized rut-like periods, not unlike another tropical megaherbivore, the elephant, but on a much shorter timescale. We found profound changes in male sexual and social activities at the scale of about two weeks. This so far undescribed rutting behaviour is closely correlated with changes in androgen concentrations and appears to be driven by them. The short time scale of the changes in sexual and social activity may explain why dominance and reproductive status in male giraffe in the field seem to be unstable.

Item Type: Journal Item
Copyright Holders: 2013 The Authors
ISSN: 1744-957X
Extra Information: 4 pp.
Keywords: giraffe; mating period; rut; faecal androgens; non-invasive hormone monitoring; Hwange National Park
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Environment, Earth and Ecosystem Sciences
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 42728
Depositing User: Peter Seeber
Date Deposited: 12 May 2015 10:44
Last Modified: 07 Dec 2018 10:30
URI: http://oro.open.ac.uk/id/eprint/42728
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