Cortisol levels are positively associated with pup-feeding rates in male meerkats

Proceedings. Biological Sciences
Anne A CarlsonT H Clutton-Brock

Abstract

In societies of cooperative vertebrates, individual differences in contributions to offspring care are commonly substantial. Recent attempts to explain the causes of this variation have focused on correlations between contributions to care and the protein hormone prolactin, or the steroid hormone testosterone. However, such studies have seldom considered the importance of other hormones or controlled for non-hormonal factors that are correlative with both individual hormone levels and contributions to care. Using multivariate statistics, we show that hormone levels explain significant variation in contributions to pup-feeding by male meerkats, even after controlling for non-hormonal effects. However, long-term contributions to pup provisioning were significantly and positively correlated with plasma levels of cortisol rather than prolactin, while plasma levels of testosterone were not related to individual patterns of pup-feeding. Furthermore, a playback experiment that used pup begging calls to increase the feeding rates of male helpers gave rise to parallel increases in plasma cortisol levels, whilst prolactin and testosterone levels remained unchanged. Our findings confirm that hormones can explain significant amounts of var...Continue Reading

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Citations

Jan 9, 2009·Proceedings. Biological Sciences·Joah R MaddenTim H Clutton-Brock
Oct 12, 2010·Proceedings. Biological Sciences·Joah R Madden, Tim H Clutton-Brock
Dec 1, 2007·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Tony D Williams
Mar 28, 2009·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Andrew F Russell, Virpi Lummaa
Aug 4, 2010·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Marta C SoaresRui F Oliveira
Jan 8, 2014·Primates; Journal of Primatology·Maricele Nascimento Barbosa, Maria Teresa da Silva Mota
Sep 25, 2007·The American Naturalist·Hansjoerg P KuncMarta B Manser
Aug 9, 2015·Hormones and Behavior·Anne E Storey, Toni E Ziegler
Nov 8, 2015·Hormones and Behavior·Javier delBarco-TrilloChristine M Drea
Aug 7, 2010·Physiology & Behavior·Luis A EbenspergerHoracio B Croxatto
Sep 12, 2009·Neuroscience and Biobehavioral Reviews·Amanda C KentnerCatherine Bielajew
Nov 20, 2012·American Journal of Primatology·Maricele N Barbosa, Maria T da Silva Mota
Mar 11, 2006·Hormones and Behavior·Anne A CarlsonTim Clutton-Brock
Jul 20, 2011·Hormones and Behavior·Anne E StoreyDonald W McKay

Apr 17, 2012·Animal Behaviour·Peter Santema, Tim Clutton-Brock
Jan 31, 2012·Trends in Ecology & Evolution·Nichola J RaihaniRedouan Bshary
Jun 22, 2014·Hormones and Behavior·Marta C SoaresRedouan Bshary
Jan 27, 2015·Behavioral Ecology and Sociobiology·Dorothy L CheneyRobert M Seyfarth
Mar 25, 2008·Physiology & Behavior·Nicole BenderMichael Taborsky
Oct 28, 2015·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Katherine McAuliffeAndrew F Russell
Sep 22, 2017·Proceedings. Biological Sciences·Ben DantzerTim H Clutton-Brock
Dec 20, 2013·Journal of Oral Science·Naser Asl AminabadiZahra Jamali
Aug 3, 2017·Animal Cognition·Federica AmiciNereida Bueno-Guerra
Jun 21, 2017·American Journal of Primatology·Maricele Nascimento BarbosaMarcela Nascimento Barbosa
May 10, 2017·Royal Society Open Science·Katy ScottEmma I K Vitikainen
Aug 29, 2018·Proceedings of the National Academy of Sciences of the United States of America·Akiyuki WataraiTakefumi Kikusui

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