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Science 9 July 1976:
Vol. 193. no. 4248, pp. 148 - 150
DOI: 10.1126/science.935864
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Articles

Science, Vol 193, Issue 4248, 148-150
Copyright © 1976 by American Association for the Advancement of Science

articles

Heart rate in spiders: influence of body size and foraging energetics

JE Carrel and RD Heathcote

Resting heart rates in 18 species of spiders as determined by a cool laser transillumination technique range from 9 to 125 beats per minute. Cardiac frequencies obtained in this fashion may readily serve as a measure of standard rates of metabolism. A spider's resting heart rate is a function of body size and of foraging energetics.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)