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Victims of infanticide and conspecific bite wounding in a female-dominant primate: a long-term study.

Publication ,  Journal Article
Charpentier, MJE; Drea, CM
Published in: PloS one
January 2013

The aggression animals receive from conspecifics varies between individuals across their lifetime. As poignantly evidenced by infanticide, for example, aggression can have dramatic fitness consequences. Nevertheless, we understand little about the sources of variation in received aggression, particularly in females. Using a female-dominant species renowned for aggressivity in both sexes, we tested for potential social, demographic, and genetic patterns in the frequency with which animals were wounded by conspecifics. Our study included 243 captive, ring-tailed lemurs (Lemur catta), followed from infancy to adulthood over a 35-year time span. We extracted injury, social, and life-history information from colony records and calculated neutral heterozygosity for a subset of animals, as an estimate of genetic diversity. Focusing on victims rather than aggressors, we used General Linear Models to explain bite-wound patterns at different life stages. In infancy, maternal age best predicted wounds received, as infants born to young mothers were the most frequent infanticide victims. In adulthood, sex best predicted wounds received, as males were three times more likely than females to be seriously injured. No relation emerged between wounds received and the other variables studied. Beyond the generally expected costs of adult male intrasexual aggression, we suggest possible additive costs associated with female-dominant societies - those suffered by young mothers engaged in aggressive disputes and those suffered by adult males aggressively targeted by both sexes. We propose that infanticide in lemurs may be a costly by-product of aggressively mediated, female social dominance. Accordingly, the benefits of female behavioral 'masculinization' accrued to females through priority of access to resources, may be partially offset by early costs in reproductive success. Understanding the factors that influence lifetime patterns of conspecific wounding is critical to evaluating the fitness costs associated with social living; however, these costs may vary substantially between societies.

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Published In

PloS one

DOI

EISSN

1932-6203

ISSN

1932-6203

Publication Date

January 2013

Volume

8

Issue

12

Start / End Page

e82830

Related Subject Headings

  • Male
  • Lemur
  • General Science & Technology
  • Female
  • Bites and Stings
  • Behavior, Animal
  • Animals
 

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Charpentier, M. J. E., & Drea, C. M. (2013). Victims of infanticide and conspecific bite wounding in a female-dominant primate: a long-term study. PloS One, 8(12), e82830. https://doi.org/10.1371/journal.pone.0082830
Charpentier, Marie J. E., and Christine M. Drea. “Victims of infanticide and conspecific bite wounding in a female-dominant primate: a long-term study.PloS One 8, no. 12 (January 2013): e82830. https://doi.org/10.1371/journal.pone.0082830.
Charpentier, Marie J. E., and Christine M. Drea. “Victims of infanticide and conspecific bite wounding in a female-dominant primate: a long-term study.PloS One, vol. 8, no. 12, Jan. 2013, p. e82830. Epmc, doi:10.1371/journal.pone.0082830.

Published In

PloS one

DOI

EISSN

1932-6203

ISSN

1932-6203

Publication Date

January 2013

Volume

8

Issue

12

Start / End Page

e82830

Related Subject Headings

  • Male
  • Lemur
  • General Science & Technology
  • Female
  • Bites and Stings
  • Behavior, Animal
  • Animals