Naslov
Do morphological condition indices predict locomotor performance in the lizard Podarcis sicula?

Autori
Vervust, Bart ; Lailvaux, Simon ; Grbac, Irena ; Van Damme, Raoul

Izvornik
Acta Oecologica - International Journal of Ecology (1146-609X) 34 (2008), 2; 244-251

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
condition; performance; sprinting; endurance

Sažetak
Biologists have developed a number of simple metrics to assess the health and energetic status of individual organisms and populations. While these condition indices have been widely used to address questions in evolutionary ecology and conservation biology, the ability of such indices to predict ecologically relevant locomotor performance abilities remains unknown. We show here that the functional links between six commonly used morphological condition indices and locomotor performance in two populations of Adriatic lizards (Podarcis sicula) are weak at best. Indeed, no indices consistently predict either maximum sprint speed or maximum exertion across sexes, seasons or populations. These results cast doubt on the ecological relevance of morphological condition indices in terms of locomotor performance, measured in laboratory conditions, at least in this species. We urge caution in using condition indices as proxies for individual physiological or phenotypic quality in ecological and evolutionary studies

Izvorni jezik
Engleski

Znanstvena područja
Biologija

POVEZANOST RADA