Journal
JOURNAL OF COMPARATIVE PHYSIOLOGY B-BIOCHEMICAL SYSTEMS AND ENVIRONMENTAL PHYSIOLOGY
Volume 183, Issue 4, Pages 491-500Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00360-012-0732-1
Keywords
Crocodile; Metabolic rate; Scaling; Allometry
Categories
Funding
- Australian Research Council [LP0882478]
- Rural Industries Research and Development Corporation
- Northern Territory Research and Innovation Fund
- Wildlife Management International
- Australian Research Council [LP0882478] Funding Source: Australian Research Council
Ask authors/readers for more resources
Standard metabolic rate (SMR, ml O-2 min(-1)) of captive Crocodylus porosus at 30 A degrees C scales with body mass (kg) according to the equation, SMR = 1.01 M-0.829, in animals ranging in body mass of 3.3 orders of magnitude (0.19-389 kg). The exponent is significantly higher than 0.75, so does not conform to quarter-power scaling theory, but rather is likely an emergent property with no single explanation. SMR at 1 kg body mass is similar to the literature for C. porosus and for alligators. The high exponent is not related to feeding, growth, or obesity of captive animals. The log-transformed data appear slightly curved, mainly because SMR is somewhat low in many of the largest animals (291-389 kg). A 3-parameter model is scarcely different from the linear one, but reveals a declining exponent between 0.862 and 0.798. A non-linear model on arithmetic axes overestimates SMR in 70 % of the smallest animals and does not satisfactorily represent the data.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available