Proximate causes of intraspecific variation in locomotor performance in the lizard Gallotia galloti.

Abstract excerpt

To understand the evolution of biological traits, information on the degree and origins of intraspecific variation is essential. Because adaptation can take place only if the trait shows heritable variation, it is important to know whether (at least) part of the trait variation is genetically based. We describe intra- and interindividual variation in three performance measures (sprint speed, climbing, and...

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