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Transabdominal Ultrasound for Pregnancy Diagnosis in Reeves' Muntjac Deer
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Mate choice on fallow deer leks.

T H Clutton-Brock1, M Hiraiwa-Hasegawa, A Robertson

  • 1Department of Zoology, University of Cambridge, UK.

Nature
|August 10, 1989
PubMed
Summary
This summary is machine-generated.

Female fallow deer choose mates based on male traits, not territory location. Experiments showed male mating success persisted even after territory changes, indicating female choice drives lek dynamics.

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Area of Science:

  • Behavioral Ecology
  • Evolutionary Biology
  • Animal Behavior

Background:

  • Lek mating systems involve males defending territories for mating opportunities.
  • Female choice is a key factor in lek evolution, but the basis of this choice is debated.
  • Potential factors include male phenotype, territory quality, or interference between males.

Purpose of the Study:

  • To investigate the primary factors driving female mate choice in fallow deer leks.
  • To differentiate between female preference for male traits versus territory characteristics.

Main Methods:

  • Experimental manipulation of territory positions for fallow bucks on a lek.
  • Observation and recording of mating success and female movements between territories.
  • Analysis of correlations between male phenotype, territory location, and mating success.

Main Results:

  • Male mating success differences persisted after experimental territory exchanges.
  • Territory position relative to the lek center did not significantly impact mating success.
  • Females moved freely between territories, and male interference was minimal.

Conclusions:

  • Female fallow deer primarily choose mates based on male phenotypic traits, not territory attributes.
  • Female choice, rather than territory defense or male-male competition, appears to be the main driver of mating success in this lek population.
  • Harem size was the immediate factor influencing female movements between males.