PMID: 12770355May 29, 2003Paper

Feeding and respiratory gas exchange in the American dog tick, Dermacentor variabilis

Journal of Insect Physiology
L J FieldenY Rechav

Abstract

This study investigated the effect of blood feeding on respiratory gas exchange in the dog tick Dermacentor variabilis. Adult male and female ticks were fed on bovine hosts from 1 to 11days. Females fed slowly for the first 6days and then rapidly engorged on blood 2-3days prior to dropping from the host. Ticks were removed at daily intervals during feeding, weighed and CO(2) emission measured at 25 degrees C using flow-through respirometry. During feeding, females (N=39) showed a 100-fold gain in mass from 5.78+/-1.05mg to 541.15+/-18.60mg while standard metabolic rate (Vdot;co(2)) increased from 0.179+/-0.030&mgr;lh(-1) in unfed ticks to 87.32+/-5.72&mgr;lh(-1) in fully engorged ticks. CO(2) release prior to feeding was highly discontinuous with discrete spiracular bursts of CO(2) emission approximately every 30min. For CO(2) emission measured in detached partially or completely fed ticks, burst frequency became more and more rapid as feeding progressed and changed to continuous sustained CO(2) output during rapid engorgement. In contrast to females, male ticks (N=20) showed little change in mass and maintained discontinuous CO(2) throughout the 11day attachment period on the host. The switch from discontinuous to continuous C...Continue Reading

References

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Citations

May 5, 2004·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·L J FieldenM S Arakelyan
Mar 17, 2004·Journal of Insect Physiology·Boris R KrasnovLaura J Fielden
Apr 20, 2013·Journal of Insect Physiology·Zachary C DeVries, Arthur G Appel
Sep 10, 2013·Journal of Insect Physiology·Zachary C DevriesArthur G Appel
May 10, 2011·Biology Letters·Ann M PetersenDavid J Ellerby
Jan 20, 2012·The Journal of Parasitology·María José Ruiz-LópezLori S Eggert
Jan 16, 2015·Physiological and Biochemical Zoology : PBZ·Zachary C DeVriesArthur G Appel
Nov 28, 2006·Journal of Invertebrate Pathology·Gerald D BaldridgeUlrike G Munderloh
Feb 17, 2006·Annals of the New York Academy of Sciences·Michael J HerronUlrike G Munderloh
Apr 8, 2009·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Irina S KhokhlovaA Allan Degen
Oct 3, 2001·Journal of Medical Entomology·L J FieldenI Khokhlova
Apr 10, 2016·The Journal of Experimental Biology·Marshall D McCueJohn S Terblanche
May 31, 2019·Experimental & Applied Acarology·Gabriel A LandulfoLivio M Costa-Junior
Jun 8, 2001·Evolution; International Journal of Organic Evolution·T GirayL Stevens
Jun 18, 2005·The Journal of Experimental Biology·Michal SarfatiA Allan Degen

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