Evol Ecol Res 11: 817-825 (2009) Full PDF if your library subscribes.
Non-adaptive strategies explain variation in rate of development under different thermal conditions
Guillermo Folguera, Tamara P. Catalán and Francisco Bozinovic
Center for Advanced Studies in Ecology and Biodiversity (CASEB), LINC-Global and Departamento de Ecología, Facultad de Ciencias Biológicas, P. Universidad Católica de Chile, Santiago, Chile
Correspondence: F. Bozinovic, Departamento de Ecología, Facultad de Ciencias Biológicas, P. Universidad Católica de Chile, Santiago 6513677, Chile.
Objective: To test for an effect of isomorphy on development rate under different experimental thermal environments.
Methods: In three different thermal environments, we studied the following characters as response variables during development: metabolic rate, body mass, and body length. We used as our study model the terrestrial isopod Armadillidium vulgare during the first 14 weeks of development.
Conclusions: Our results suggest that although metabolic rate and body mass may depend on the internal state of individuals, body length may present an isomorphic response. This would be evidence that a non-adaptive interpretation could explain developmental patterns and thus highlight the importance of avoiding the frequent use of unsupported adaptive explanations in evolutionary ecology.
Keywords: adaptation, Armadillidium vulgare, development, isomorphy.
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