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Corpus Systématique Végétale

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Experimental studies on the respiratory rates of mites (Acari) from beech-woodland leaf litter

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  • T. G. Wood 1,2
  • J. H. Lawton 1
  • 1) Animal Ečology Research Group, Department of Zoology, University of Oxford, Oxford, England
  • 2) Division of Soils, C.S.I.R.O., Private Bag No. 1, 5064, Glen Osmond, S. A., Australia

Respiratory rates (oxygen consumption) of thirty-six species of mites from beech-woodland leaf-litter were measured at 10°C in a Cartesian Diver. The first published information on the respiratory rates of Prostigmata, and new information on the respiratory rates of adult and juvenile stages of Mesostigmata and Cryptostigmata are presented. The most important single variable influencing respiratory rate (for mites of a given size at a constant temperature) was activity; however, progressively increasing levels of activity increased not only the level of metabolism, but also the slopes of the regression lines of log10 respiratory rate against log10 weight, from a minimum of 0.54 in very inactive Cryptostigmata to a maximum of 1.03 in extremely active Prostigmata. The effect of activity on the metabolic cost of searching for prey in predatory mites is discussed. Respiratory rates per unit weight declined smoothly as a simple function of weight throughout the life-histories of two species of mite, but not in two others. Sexual differences and differences in the respiratory rates of gravid and nongravid females of several species were also demonstrated. Results are compared with previously published work on mite respiration. Some discrepancies are apparent between our data and that of other workers. Possible reasons for, and consequences of these discrepancies are discussed.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - ecology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
Catégories Scopus
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - ecology
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