Campus Units

Entomology

Document Type

Article

Publication Version

Published Version

Publication Date

5-2006

Journal or Book Title

American Journal of Tropical Medicine and Hygiene

Volume

74

Issue

5

First Page

786

Last Page

794

Abstract

Using the tsetse, Glossina pallidipes, we show that physiologic plasticity (resulting from temperature acclimation) accounts for among-population variation in thermal tolerance and water loss rates. Critical thermal minimum (CT(Min)) was highly variable among populations, seasons, and acclimation treatments, and the full range of variation was 9.3 degrees C (maximum value = 3.1 x minimum). Water loss rate showed similar variation (max = 3.7 x min). In contrast, critical thermal maxima (CT(Max)) varied least among populations, seasons, and acclimation treatments, and the full range of variation was only approximately 1 degree C. Most of the variation among the four field populations could be accounted for by phenotypic plasticity, which in the case of CT(Min), develops within 5 days of temperature exposure and is lost rapidly on return to the original conditions. Limited variation in CT(Max) supports bioclimatic models that suggest tsetse are likely to show range contraction with warming from climate change.

Comments

This is an article from American Journal of Tropical Medicine and Hygiene 74 (2006): 786. Posted with permission.

Copyright Owner

The American Society of Tropical Medicine and Hygiene

Language

en

File Format

application/pdf

Figure_3C.pdf (37 kB)
correction to Figure 3C