Monogamy without biparental care in a dwarf antelope

Proceedings. Biological Sciences
P N Brotherton, A Rhodes

Abstract

The only widely accepted explanations for the evolution of monogamy in mammals have been based on the benefits of biparental care of offspring. This is probably because, unless biparental care is important, the most competitive males would be expected to monopolize more than one female. This study investigates whether males are important for offspring survival in a monogamous dwarf antelope, Kirk's dik-dik (Madoqua kirkii), by testing three hypotheses that have been proposed to account for monogamy in mammals. In dik-diks, males could help their mates and young by: (i) defending resources; (ii) defending against infanticide by other males; and (iii) reducing predation risk. Because territorial defence was mainly sex-specific, males did not defend resources for their mates or offspring. Males also made no attempt to kill infants they had not sired, so there is no risk of infanticide. Nor was there any evidence that males reduced predation risk: females were not alerted to an approaching predator sooner when males were present, and only mothers responded to playbacks of the call of a predator which preys on juvenile but not adult dik-diks. This is the first conclusive evidence of the absence of paternal care in any monogamous mam...Continue Reading

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Citations

May 22, 1997·Proceedings. Biological Sciences·P N BrothertonG Malarky
Oct 23, 1997·Proceedings. Biological Sciences·P E Komers, P N Brotherton
Jul 27, 2007·Proceedings. Biological Sciences·Susanne Shultz, R I M Dunbar
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Dec 16, 1998·Animal Behaviour·P N M Brotherton, M B Manser
May 30, 2015·Behavioral Ecology : Official Journal of the International Society for Behavioral Ecology·Franziska C SchaedelinRichard H Wagner
Sep 1, 1996·Environmental Science and Pollution Research International·M PaulusP Müller
May 25, 2016·Evolutionary Biology·Jamile de Moura BubaduéCarlo Meloro
May 19, 2011·The Journal of Behavioral Health Services & Research·Roger A BoothroydRobert M Friedman
Apr 1, 2015·Evolution; International Journal of Organic Evolution·James D J Gilbert, Andrea Manica
Aug 13, 2020·Frontiers in Ecology and Evolution·Nancy G Solomon, Alexander G Ophir
Jul 5, 2017·Scientific Reports·Francisco PalomaresJosé Antonio Godoy

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