INVESTIGADORES
ABDALA cristian Simon
artículos
Título:
Energetics in Liolaemini lizards: ecological implications of a small body size and conservative biology
Autor/es:
CRUZ F. D ANTENUCCII F LUNA Y C S ABDALA
Revista:
PHYSIOLOGICAL AND BIOCHEMICAL ZOOLOGY
Editorial:
UNIV CHICAGO PRESS
Referencias:
Año: 2010 vol. 2011 p. 373 - 382
ISSN:
1808-9798
Resumen:
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 9 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.
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.
9 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.