Oecologia

, Volume 56, Issue 1, pp 126–131

Metabolism and thermoregulation in desert and montane grasshoppers

  • Mark A. Chappell
Article

DOI: 10.1007/BF00378228

Cite this article as:
Chappell, M.A. Oecologia (1983) 56: 126. doi:10.1007/BF00378228

Abstract

Temperature regulation and oxygen consumption were examined in two species of grasshoppers: Melanoplus sanguinipes from cold alpine tundra at elevation 3,800 m, and Trimerotropis pallidipennis from hot desert habitats at elevation 250 m. Both species utilized behavioral thermoregulation to keep body temperature (Tb) more constant than environmental temperatures (Te) during the day. The difference in average Tbin the two species was much less than the difference in Te's. Microclimate measurements indicate that temperature regulation is not difficult for M. sanguinipes, but T. pallidipennis must restrict activity for much of the day to avoid heat stress and can easily overheat if it moves into sunlit areas. Oxygen consumption (\(\dot V{\text{O}}_{\text{2}} \)) at average Tband total daily energy expenditures are higher in M. sanguinipes than in T. pallidipennis, as is the Q10 for \(\dot V{\text{O}}_{\text{2}} \). These differences may be related to different strategies for energy utilization and predator avoidance.

Copyright information

© Springer-Verlag 1983

Authors and Affiliations

  • Mark A. Chappell
    • 1
    • 2
  1. 1.Department of BiologyUniversity of CaliforniaRiversideUSA
  2. 2.White Mountain Research StationBishopUSA