Diapause, Aerobic and Anaerobic Metabolism in Alpine, Adult Melasoma collaris (Coleoptera)
- 1 October 1983
- Vol. 41 (2) , 239-244
- https://doi.org/10.2307/3544270
Abstract
Adult females of the chrysomelid beetle M. collaris L., emerged in Aug. and collected in Sept. do not develop mature eggs and have a lower O2-consumption at 21.degree. C than beetles exposed to 0.degree. C for a period of 19 wk. After 19 wk at 0.degree. C they accomplish vitellogenesis and oviposition within 10 days when transferred to 21.degree. C. Adult females of M. collaris enter diapause after hatching in Aug. and the diapause decreases in intensity with the time of exposure to low temperature and is broken after 19 wk at 0.degree. C. When stored in 99.9% N2 at 0.degree. C for 120 days, 60% of the beetles survived. During anoxia lactate was accumulated in the hemolymph. It appears that anaerobiosis is an important factor in the overwintering biology of the beetle.This publication has 2 references indexed in Scilit:
- Cold tolerance of two Antarctic terrestrial arthropodsCellular and Molecular Life Sciences, 1978
- Metabolic adaptations of antarctic terrestrial micro-arthropodsComparative Biochemistry and Physiology Part A: Physiology, 1978