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Summary: Mechanistic and experimental analysis of condition
and reproduction in a polymorphic lizard
E.I. SVENSSON, B. SINERVO & T. COMENDANT
Department of Ecology and Evolutionary Biology, Earth and Marine Sciences Building, University of California, Santa Cruz, CA, USA
Keywords:
adaptive peaks;
competition;
endocrinology;
epistatic selection;
frequency-dependent selection;
phenotypic integration;
polymorphism;
social environment.
Abstract
The importance of genetic and environmental variation in condition in
shaping evolutionary trade-offs have recently been subject to much theoretical
discussion, but is very difficult to investigate empirically in most field-based
systems. We present the results from mechanistic experimental manipulations
of reproductive investment and condition in two female colour morphs
(`orange' and `yellow') of side-blotched lizards (Uta stansburiana). We
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