Gigantism, temperature and metabolic rate in terrestrial poikilotherms.

  title={Gigantism, temperature and metabolic rate in terrestrial poikilotherms.},
  author={Anastassia M. Makarieva and Victor G. Gorshkov and Bai-Lian Li},
  journal={Proceedings. Biological sciences},
  volume={272 1578},
The mechanisms dictating upper limits to animal body size are not well understood. We have analysed body length data for the largest representatives of 24 taxa of terrestrial poikilotherms from tropical, temperate and polar environments. We find that poikilothermic giants on land become two-three times shorter per each 10 degrees of decrease in ambient temperature. We quantify that this diminution of maximum body size accurately compensates the drop of metabolic rate dictated by lower… CONTINUE READING

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