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Influences of temperature and humidity on oxygen consumption of five Chihuahuan desert ants

Authors
Journal
Comparative Biochemistry and Physiology Part A Physiology
0300-9629
Publisher
Elsevier
Publication Date
Volume
52
Issue
2
Identifiers
DOI: 10.1016/s0300-9629(75)80087-9
Keywords
  • Pogonomyrmex Californicus
  • Pogonomyrmex Desertorum
  • Novomessor Cockerelli
  • Trachymyrmex Smithi Neomexicanus
  • Formica Perpilosa
  • Oxygen Consumption
  • Temperature
  • Humidity

Abstract

Abstract 1. Oxygen consumption in five sympatric species of Chihuahuan desert ants was measured at three relative humidities at 15, 25 and 35°C. 2. The rate of oxygen consumption ( QO 2) exhibited non-linear increase in Formica perpilosa, Pogonomyrex desertorum, Novomessor cockerelli and Trachymyrmex smithi neomexicanus, but was linear in Pogonomyrmex californicus. 3. Vapor pressure deficit had a significant effect on QO 2 of P. desertorum, T. s. neomexicanus and F. perpilosa but not on the other two species. 4. Activity increased at higher vapor pressure deficits in P. desertorum, N. cockerelli and T. s. neomexicanus. 5. The highest vapor pressure deficits at 35°C resulted in deaths of all species except P. californicus and T. s. neomexicanus died at intermediate and high vapor pressure deficits at all temperatures.

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