Energetics in Liolaemini lizards: implications of a small body size and ecological conservatism |
| |
| Authors: | Félix B Cruz Daniel Antenucci Facundo Luna Cristian S Abdala Laura E Vega |
| |
| Institution: | 1.INIBIOMA (CONICET-UNCOMA) Centro Regional Universitario Bariloche,Universidad Nacional del Comahue,Bariloche,Argentina;2.CONICET, Facultad de Ciencias Exactas y Naturales,Universidad Nacional de Mar del Plata,Mar del Plata,Argentina;3.CONICET, Instituto de Herpetología,Fundación Miguel Lillo, Facultad de Ciencias Naturales e Instituto Miguel Lillo, UNT,Tucumán,Argentina;4.Facultad de Ciencias Exactas y Naturales,Universidad Nacional de Mar del Plata,Mar del Plata,Argentina |
| |
| Abstract: | Liolaemini lizards occur in southern South America in a variety of dietary habits across a broad latitudinal and altitudinal
distribution. We studied standard metabolic rates of 19 Liolaemini species and analyzed these data using both conventional
and phylogenetically informed statistics. Oxygen consumption showed a significant and positive relationship with body mass
(SMR = 0.109 × body mass0.876±0.023), with a higher slope than that expected on the basis of the three-quarter power law model. After phylogenetically informed
and conventional analyses, no significant differences in metabolic rates were found to be related to diet or elevation. We
hypothesize that small body size, ecological conservatism and physiological compensation may explain the lack of differences
in metabolic rates observed among these lizards. |
| |
| Keywords: | |
| 本文献已被 PubMed SpringerLink 等数据库收录！ |
|
