, Volume 46, Issue 5, pp 530–533

Heritability of locomotor performance and its correlates in a natural population


  • T. GarlandJr
    • Dept of ZoologyUniversity of Wisconsin
  • A. F. Bennett
    • Dept of Ecology and Evolutionary BiologyUniversity of California
  • C. B. Daniels
    • Dept of Physiology, School of MedicineFlinders University
Research Articles

DOI: 10.1007/BF01954257

Cite this article as:
Garland, T., Bennett, A.F. & Daniels, C.B. Experientia (1990) 46: 530. doi:10.1007/BF01954257


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.

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© Birkhäuser Verlag 1990