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Presentation
Potential Effects of Global Warming on the Distribution of a Temperate Univoltine Insect
Bulletin of the Ecological Society of America
  • Thomas P. Rooney, Wright State University - Main Campus
  • L. E. Hurd
Document Type
Presentation
Publication Date
6-1-1993
Abstract

Poleward migration to remain within temperature tolerance ranges as the earth warms poses a problem for species with limited dispersal abilities. The life cycle of a typical temperate univoltine insect, Tenodera sinensis (Mantodea: Mantidae), is constrained by degree-days per season: too few prevent maturation before killing frost in the fall; too many allow egg hatch prior to killing frost. We combined field observations of dispersal ability with laboratory measurements of the relationship between temperature and maturation rate, and applied these to a global warming model to predict the effect of climate change on regional distribution of this insect by 2100 A.D. Based on the simplified biological assumptions of our model, T, sinensis would be reduced to local populations in the northern portions and higher elevations of its present broadly contiguous range, and species with similar life histories may face regional or total extinction.

Comments

Presented at the 78th Ecological Society of America Annual Meeting, University of Wisconsin, Madison, WI.

Citation Information
Thomas P. Rooney and L. E. Hurd. "Potential Effects of Global Warming on the Distribution of a Temperate Univoltine Insect" Bulletin of the Ecological Society of America Vol. 74 Iss. 2 (1993) ISSN: 0012-9623
Available at: http://works.bepress.com/thomas_rooney/84/