Oxygen Uptake by Cryptopygus antarcticus (Collembola) at South Georgia
- 1 January 1978
- Vol. 30 (1) , 61-67
- https://doi.org/10.2307/3543522
Abstract
Determinations of O2 uptake of size classes I, II, III and IV of the collembolan C. antarcticus Willem at +5.degree., +10.degree. and +20.degree. C were made at South Georgia, sub-Antarctic. The relation of respiration rate to live weight was similar at the 3 temperatures. O2 uptake increased with temperature within the range examined (Q10 varying from 1.58-2.63). Comparison of South Georgia and Signy Island (Antarctic) data for C. antarcticus showed similarities between respiration-weight and respiration - temperature curves especially for the +5.degree. to +10.degree. C temperature range. No significant difference in respiration rate was detected between sexes from both locations, but a difference in body size was observed both between sexes, and between sites. The South Georgian specimens were smaller, lighter in weight and appeared sexually mature at a size smaller than those at Signy Island. The similarity of metabolism and the body size difference of C. antarcticus in the 2 populations are discussed.This publication has 1 reference indexed in Scilit: