Experientia

, Volume 46, Issue 5, pp 530–533 | Cite as

Heritability of locomotor performance and its correlates in a natural population

  • T. GarlandJr
  • A. F. Bennett
  • C. B. Daniels
Research Articles

Summary

Locomotor capacities and their physiological bases are thought to be of considerable selective importance in natural populations. Within this functional complex, organismal performance traits (e.g., speed, stamina) are expected to be of more direct selective importance than their suborganismal determinants (e.g., heart size). Quantitative genetics theory predicts that traits of greater selective importance should generally have lower heritabilities at equilibrium. Contrary to these expectations, we report that organismal performance traits had the highest heritabilities in a natural population of garter snakes.

Key words

Evolution genetics heritability locomotion physiology 

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Copyright information

© Birkhäuser Verlag 1990

Authors and Affiliations

  • T. GarlandJr
    • 1
  • A. F. Bennett
    • 2
  • C. B. Daniels
    • 3
  1. 1.Dept of ZoologyUniversity of WisconsinMadisonUSA
  2. 2.Dept of Ecology and Evolutionary BiologyUniversity of CaliforniaIrvineUSA
  3. 3.Dept of Physiology, School of MedicineFlinders UniversityBedford Park(Australia)

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