Remember Me
Or use your Academic/Social account:


Or use your Academic/Social account:


You have just completed your registration at OpenAire.

Before you can login to the site, you will need to activate your account. An e-mail will be sent to you with the proper instructions.


Please note that this site is currently undergoing Beta testing.
Any new content you create is not guaranteed to be present to the final version of the site upon release.

Thank you for your patience,
OpenAire Dev Team.

Close This Message


Verify Password:
Verify E-mail:
*All Fields Are Required.
Please Verify You Are Human:
fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Strømme, John Alexander; Ngari, Thomas Wanjohi; Zachariassen, Karl Erik (1986)
Publisher: Co-Action Publishing
Journal: Polar Research
Languages: English
Types: Article
Metabolic rates and Qlo values were determined for three species of Spitsbergen Coleoptera, Amara quenseli, Simplocaria metallica and Rhynchaenw flagellum. The beetles had metabolic rates which were elevated compared to values of Coleoptera from other regions. This is interpreted as an adaptation to the prevailing low temperatures and short activity period on Spitsbergen. A. quenseli had rates of water loss comparable to values of beetles in temperate and tropical xeric habitats, indicating that the habitat of the beetles on Spitsbergen at least occasionally is xeric. Determination of cold-hardiness parameters such as supercooling point and haemolymph melting point of A. quenseli beetles revealed that the beetles had values corresponding to those of active insects in the temperate and tropical region. They had no thermal hysteresis factors. Thus, during summer they show no physiological adaptations to cold.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • Andersen, J., Zachariassen, K. E., Maloiy, G. M. 0.& Kamau, J. M. Z. 1986: Adaptations of carabid beetles to dry habitats in East Africa. J . Trop. Ecol. 2, 127-138.
    • Aunaas, T . , Baust, J . G. & Zachariassen, K. E. 1983: Ecophysiological studies on arthropods from Spitsbergen. Polar Research I , 235-240.
    • Block, W. 1981: Respiration studies on some South Georgian Coleoptera. Colloque sur les Ecosysremes Subanrarcfiques, Paimponr. C.N.F.R.A. No. 51, 182-192.
    • Conradi-Larsen, E. M. & Semme, L. 1973: The overwintering of Pelophilu borealis Payk. 11. Aerobic and anaerobic metabolism. Nor. Enr. Tidsskr. 20, 325-332.
    • Duman, J . G . , Horwarth, K. L., Tomchaney, A. & Patterson, J . L. 1982:Antifreeze agents of terrestrial arthropods. Comp. Biochem. Physiol. 73A. 545-555.
    • Grammeltvedt, R. & Steen, J. B. 1978: Fat deposition in Spitsbergen ptarmigans. Arctic 31, 496498.
    • Husby, J. A. 1982:0kofysiologiskesrudierpll uinrerakriueinsekrer. Cand. real. thesis, Trondheim.
    • HAgvar, S. & Ostbye, E. 1974: Oxygen consumption, caloric values water and ash content of some dominant terrestial arthropods from alpine habitats at Finse, South Norway. Nor. Ent. Tidsskr. 21, 117-126.
    • Krog, J . 0..Wika, M.. Lund-Larsen, T., Nordfjell, J. & Myrnes. I . 1976: Spitsbergen Reindeer: Morphology, fat storage and weight in the late winter season. Nor. J. Zool. 24, 407-417.
    • Lindroth, C. H. 1945: Die fennoscandischen Carabidae. I. GQteborgs K . Vetensk. - o. Vitterh. samh. Handl. Ser. 84. 709 PP.
    • Ringberg, T . 1979: The Spitsbergen Reindeer - a winter dormant ungulate? Acra Physiol. Scand. I O S , 26b273.
    • Schmidt-Nielsen, K. 1972: How animals work. Cambridge University Press. 114 pp.
    • S ~ m m e L,. & Zachariassen, K. E . 1981: Adaptations to low temperature in high altitude insects from Mount Kenya. Ecol. Em. 6 , 199-204.
    • van der Laak, S. 1982: Physiological adaptations to low temperature in freezing-tolerant Phyllodecta faricollis beetles. Comp. Biochem. Physiol. 73A. 6E-620.
    • Zachariassen, K. E. 1980: The role of polyols and nucleating agents in cold-hardy beetles. J . Comp. Physiol. 140,167-170.
    • Zachariassen, K. E. 1985: Physiology of cold-hardiness in insects. Physiol. Reviews 65, 799-832.
    • Zachariassen K. E. & Hammel, H . T. 1976: Nucleating agents in the haemolymph of insects tolerant to freezing. Narure262, 285-287.
    • Zachariassen, K. E., Andersen, J., Maloiy, G. M. 0.& Kamau, J. M. Z. 1987: Transpiratory water loss and metabolism of beetles from arid areas in East Africa. Comp. Biochem. Physiol. (in press).
  • No related research data.
  • No similar publications.

Share - Bookmark

Cite this article

Collected from