Battle of the sexes: cost asymmetry explains female dominance in lemurs

  title={Battle of the sexes: cost asymmetry explains female dominance in lemurs},
  author={Amy E. Dunham},
  journal={Animal Behaviour},
  • A. Dunham
  • Published 1 October 2008
  • Biology
  • Animal Behaviour

Tables from this paper

Female Power: A New Framework for Understanding “Female Dominance” in Lemurs
This article utilizes the 4 characteristics outlined in the power framework to review the existing “female dominance” literature for lemurs and highlights the value of adopting both an expanded concept of power and a more precise language.
Food availability and male deference in the female-dominant ring-tailed lemur, Lemur catta.
Female dominance, a trait common to some Malagasy lemurs, has been viewed as an adaptation that decreases intersexual feeding competition. A hypothesized relationship exists between male "deference"
Sex and dominance: How to assess and interpret intersexual dominance relationships in mammalian societies
The causes and consequences of being in a particular dominance position have been illuminated in various animal species, and new methods to assess dominance relationships and to describe the
Peaceful primates: affiliation, aggression, and the question of female dominance in a nocturnal pair‐living lemur (Avahi occidentalis)
Findings support the hypothesis that social relations in pair‐living primates are linked to the cohesiveness of pair partners in time and space irrespective of phylogeny and activity mode.
Non-sex-biased Dominance in a Sexually Monomorphic Electric Fish: Fight Structure and Submissive Electric Signalling
It is confirmed that body size is the best RHP proxy in non-breeding intra- and intersexual contests of this monomorphic species and demonstrated a sequential pattern of submissive signalling by means of two different electric displays.
Sources of variation in social tolerance in mouse lemurs (Microcebus spp.)
The study suggests that mouse lemur females have higher aggression rates and more agonistic conflicts with males when females in the population are reproducing, at least in resource-rich humid forests.
Exploring Social Dominance in Wild Diademed Sifakas (Propithecus diadema): Females Are Dominant, but It Is Subtle and the Benefits Are Not Clear
This unexpected pattern (female dominance despite rare aggression, clear female leadership and displacement, yet no observable benefit in grooming or feeding outcomes) defies easy explanation, and reinforces the fact that studies examining female power in lemurs should take a multifaceted approach.
Post-weaning maternal effects and the evolution of female dominance in the spotted hyena
It is suggested that constraints imposed by the development of a feeding apparatus specialized for bone cracking, in combination with the intensive feeding competition characteristic of spotted hyenas, led to the evolution of female dominance.


The Social Systems of Gregarious Lemurs: Lack of Convergence with Anthropoids due to Evolutionary Disequilibrium?
It is concluded that the social systems of non-nocturnal lemurs are best considered as groups formed by species adapted to live in pairs, and that the possibility that cathemeral activity is an old and stable activity pattern among lemur cannot conclusively exclude.
Patterns of female dominance in Propithecus diadema edwardsi of Ranomafana national park, Madagascar
It is proposed that female dominance exists because it provides a fitness advantage to both males and females.
The Relationship between Concealed Ovulation and Mating Systems in Anthropoid Primates: A Phylogenetic Analysis
There is a linkage between absence of ovulation signs and monogamy, but the temporal relationship is generally such that the lack of ovulatory signs is more likely to promote monogamy than monogamy is to promote a lack of Ovulatory signs.
Female white-handed gibbons (Hylobates lar) lead group movements and have priority of access to food resources
It is concluded that, although appearing co-dominant, gibbon females assume a greater leadership role in coordinating group activities.
New World primates, new frontiers: Insights from the woolly spider monkey, or muriqui (Brachyteles arachnoides)
  • K. Strier
  • Biology
    International Journal of Primatology
  • 2005
Data presented on the wooly spider monkey, or muriqui (Brachyteles arachnoides), provide examples of the ways in which traditional views of primate behavior are being reconsidered, including constraints on sexual dimorphism.
Female Dominance in African Lorises (Otolemur garnettii)
Observation of male/female pairs of captive Garnett’s greater bushbabies allowed us to study dominance relationships between the sexes that would be otherwise hard to investigate in a nocturnal and normally solitarily foraging species.
Variation in Social Structure: the Effects of Sex and Kinship on Social Interactions in Three Lemur Species
It is revealed that patterns of agonistic and affinitive interactions are not generally predictable from sexual selection theory and interspecific differences in life histories, indicating a need for more quantitative descriptions of social relationships in diverse taxa to identify other ecological and social determinants of social structure.
It was found that dominant individuals initiated aggressive interactions signie cantly more often than lowerranking ones, they initiated group movements more often and higher-ranking individuals were groomed more often.
Sexual Dimorphism, the Operational Sex Ratio, and the Intensity of Male Competition in Polygynous Primates
A weight-corrected measure of sexual dimorphism and a biologically realistic assay of mating competition, the operational sex ratio, are employed to reexamine the factors favoring the evolution of sexual sizeDimorphism in primates and produce results consistent with the sexual selection hypothesis.
Causes and Consequences of Life-History Variation Among Strepsirhine Primates
  • P. Kappeler
  • Biology, Psychology
    The American Naturalist
  • 1996
Lemurs and lorises were found to have similar postnatal litter growth rates, indicating that the energetic costs of reproduction did not figure prominently in the evolution of female dominance, and strepsirhine life histories are not narrowly constrained by nonadaptive forces.