Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-28T11:46:12.131Z Has data issue: false hasContentIssue false

POSSIBLE DUAL COLD-HARDINESS STRATEGIES IN CISSEPS FULVICOLLIS (LEPIDOPTERA: ARCTIIDAE)1

Published online by Cambridge University Press:  31 May 2012

Paul G. Fields
Affiliation:
Département de biologie, Université Laval, Québec, Québec, Canada G1K 7P4
Jeremy N. McNeil
Affiliation:
Département de biologie, Université Laval, Québec, Québec, Canada G1K 7P4

Extract

Insects are usually classified as either freeze-intolerant or freeze-tolerant (Danks 1978; Sømme 1982; Baust and Rojas 1985). Freeze-intolerant species cannot survive the formation of ice in their bodies and typically lower their supercooling points (SCP), the temperature of spontaneous ice formation, during the winter months (Sømme 1982). This is the lower lethal temperature for the insect, although prolonged exposure to temperatures above this may be harmful (Turnock et al. 1983). On the other hand, freeze-tolerant insects can survive the presence of ice crystals in their extracellular fluid and usually have nucleators that prevent supercooling below – 10°C (Zachariassen 1982).

Type
Articles
Copyright
Copyright © Entomological Society of Canada 1986

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Angell, C.A. 1982. Supercooled water. pp. 181in Franks, F. (Ed.), Water: A Comprehensive Treatise, Vol. 7. Plenum Press, New York.Google Scholar
Baust, J.G. 1976. Temperature buffering in an arctic microhabitat. Ann. ent. Soc. Am. 69: 117119.Google Scholar
Baust, J.G., and Rojas, R.R.. 1985. Review—Insect cold-hardiness: facts and fancy. J. Insect Physiol 31: 755759.CrossRefGoogle Scholar
Borror, M.J., Delong, D.M., and Triplehorn, C.A.. 1976. An introduction to the study of insects, 4th ed. Hoff, Rinehard and Winston, New York. 852 pp.Google Scholar
Danks, H.V. 1978. Modes of seasonal adaptation in the insects. I. Winter survival. Can. Ent. 110: 11671205.CrossRefGoogle Scholar
Duman, J.G. 1982. Insect antifreezes and ice-nucleating agents. Cryobiol. 19: 613627.Google Scholar
Duman, J.G. 1984. Change in overwintering mechanism of the cucujid beetle Cucujus clavipes. J. Insect Physiol. 30: 235239.CrossRefGoogle Scholar
Fields, P.G., and McNeil, J.N.. 1984. The overwintering potential of the true armyworm, Pseudaletia unipuncta (Lepidoptera: Noctuidae), populations in Quebec. Can. Ent. 116: 16471652.CrossRefGoogle Scholar
Humble, L.M., and Ring, R.A.. 1985. Inoculative freezing of a larval parasitoid within its host. Cryo-Letters 6: 5966.Google Scholar
Luff, M.L. 1966. Cold-hardiness of some beetles living in grass tussocks. Ent. exp. appl. 9: 191199.Google Scholar
Sømme, L. 1974. The overwintering of Pelophila borealis. Payk. III. Freezing tolerance. Norsk. Ent. Tidsskr. 21: 131134.Google Scholar
Sømme, L. 1982. Supercooling and winter survival in terrestrial arthropods. Comp. Biochem. Physiol. 73A: 519543.Google Scholar
Tanno, K. 1977. Ecological observations and frost-resistance in overwintering prepupae, Sciara sp. (Sciaridae). Low Temp. Sci. Sec. B 35: 6374.Google Scholar
Turnock, W.J., Lamb, R.J., and Bodnaryk, R.P.. 1983. Effects of cold stress during pupal diapause on the survival and development of Mamestra configurata (Lepidoptera: Noctuidae). Oecol. 56: 185192.Google Scholar
Zachariassen, K.E. 1982. Nucleating agents in cold-hardy insects. Comp. Biochem. Physiol. 73A: 557562.Google Scholar