• Publications
  • Influence
Parent–offspring conflict
An evolutionary theory of the family.
  • S. Emlen
  • Biology
    Proceedings of the National Academy of Sciences…
  • 29 August 1995
TLDR
An evolutionary framework for viewing the formation, the stability, the organizational structure, and the social dynamics of biological families is developed and it is suggested that this evolutionary perspective will provide insights into understanding human family systems.
The Evolution of Helping. I. An Ecological Constraints Model
  • S. Emlen
  • Environmental Science
    The American Naturalist
  • 1 January 1982
TLDR
It is argued that a necessary first step for the evolution of cooperative breeding is a substructuring of the population into small, stable, social units; in most known cases these are extended-family units.
Reproductive sharing in animal societies: reproductive incentives or incomplete control by dominant breeders?
TLDR
Overall, current data on reproductive skew and its relationships to intragroup aggression and ecological constraints support the optimal skew model, but more data are needed to rule out the incomplete control model.
Cognitive processes underlying human mate choice: The relationship between self-perception and mate preference in Western society
  • P. Buston, S. Emlen
  • Psychology
    Proceedings of the National Academy of Sciences…
  • 3 July 2003
TLDR
It is concluded that, in Western society, humans use neither an “opposites-attract” nor a “reproductive-potentials-attraction” decision rule in their choice of long-term partners but rather a "likes-attracted" rule based on a preference for partners who are similar to themselves across a number of characteristics.
Inclusive fitness theory and eusociality
TLDR
It is argued that inclusive fitness theory has been of little value in explained the natural world, and that it has led to negligible progress in explaining the evolution of eusociality, but these arguments are based upon a misunderstanding of evolutionary theory and a misrepresentation of the empirical literature.
Lek organization and mating strategies in the bullfrog
  • S. Emlen
  • Biology
    Behavioral Ecology and Sociobiology
  • 1 September 1976
TLDR
Three potential mating systems that might result from the combination of intense sexual selection plus female choice of mate are discussed: harems; polygyny based on differential territory quality; and leks.
Sex-Ratio Selection in Species with Helpers-At-The-Nest
TLDR
The expanded Fisher's sex-ratio model is expanded to incorporate the concept of a sex-specific helper payback and leads to the testable hypothesis that the male-biased adult sex ratio found in most species of cooperatively breeding birds may be a result rather than a cause of the helping behavior.
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