Metabolic rate in the whip-spider, Damon annulatipes (Arachnida: Amblypygi)

Journal of Insect Physiology
John S TerblancheSteven L Chown

Abstract

Metabolic rate estimates as well as a measure of their repeatability and response to laboratory acclimation are provided for the amblypygid Damon annulatipes (Wood). This species (mean +/- S.E. mass: 640+/-66 mg) shows continuous gas exchange, as might be expected from its possession of book lungs, and at 21 degrees C has a metabolic rate of 30.22+/-2.87 microl CO2 h(-1) (approximately 229.6+/-21.8 microW, R.Q. = 0.72). The intraclass correlation coefficient (r=0.74-0.89) indicated substantial repeatability in metabolic rate which did not change with laboratory acclimation over a period of 2 weeks. By contrast, absolute metabolic rate declined by c. 16-33%, although this was not a consequence of changes in mass (which were non-significant over the same period). Rather, it appears that a reduction in overall stress or activity in the laboratory might have been responsible for the decline in mass-independent metabolic rate. At the intraspecific level, metabolic rate scaled as microW = 342 M(0.857), where mass is in grams. Metabolic rates of this species are in keeping with its sedentary behaviour such that for a given body size they are lower than those of most arthropods (spiders and insects), higher than the very sedentary tick...Continue Reading

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Citations

Jul 8, 2010·BMC Evolutionary Biology·Bruce AndersonAllan G Ellis
Apr 30, 2011·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Roberto F NespoloJosé L Bartheld
Sep 27, 2014·Journal of Insect Physiology·Liangwen XuRoger S Seymour
Jul 14, 2010·Die Naturwissenschaften·John S Terblanche, Bruce Anderson
Feb 26, 2008·Molecular Biology and Evolution·Susan E Masta, Jeffrey L Boore
Aug 12, 2014·Molecular Biology and Evolution·Prashant P SharmaGonzalo Giribet
Dec 21, 2012·The Journal of Experimental Biology·Roger S Seymour, Philip G D Matthews
Oct 1, 2011·The Journal of Experimental Biology·Robert A JohnsonWilliam Sharp
Feb 3, 2007·The Journal of Experimental Biology·Roberto F NespoloLuis E Castañeda
Sep 23, 2008·The Journal of Experimental Biology·Susana Clusella-Trullas, Steven L Chown
Dec 13, 2005·The Journal of Experimental Biology·Elrike MaraisSteven L Chown
Jun 10, 2011·The Journal of Experimental Biology·Roger S Seymour, Stefan K Hetz

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