Larval damselflies in extreme environments: behavioral and physiological response to hypoxic stress

Journal of Insect Physiology
Christine K Apodaca, Lauren J Chapman

Abstract

The extensive papyrus (Cyperus papyrus) swamps of East and Central Africa form a habitat of great ecological importance due to their extent, the extreme and chronic hypoxia of the interior swamp, and the unique assemblages of water-breathing insects that characterize these communities, including zygopteran (damselfly) larvae. The major goal of this study was to quantify physiological and behavioral responses of gilled and gill-less damselfly larvae of a papyrus swamp specialist, Proischnura subfurcatum, to low-oxygen conditions. Gill autotomization was common in P. subfurcatum of the Rwembaita Swamp in Kibale National Park, Uganda, with one to three gills missing from 56% of the specimens surveyed. We examined behavioral (ventilation activity and vertical migration) and physiological (metabolic rate) response to hypoxia in gilled and gill-less P. subfurcatum. Behavioral response to progressive hypoxia indicated that gill-less individuals rely more on use of wing sheaths (lifting and spreading) than gilled P. subfurcatum larvae. However, both morphs migrated to the surface to gain contact with atmospheric air under extreme hypoxia. On average, the rate of oxygen consumption of gill-less individuals was 51% lower than that of gil...Continue Reading

References

Aug 1, 1974·Journal of Insect Physiology·W Wichard, H Komnick
Mar 11, 2000·American Journal of Primatology·C A Chapman, J E Lambert
Mar 16, 2001·Journal of Insect Physiology·W W. Hoback, D W. Stanley

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Citations

Oct 16, 2008·Biology Letters·Stefanie SlosRobby Stoks
Jul 13, 2007·Biological Reviews of the Cambridge Philosophical Society·Patricia A FlemingPhilip W Bateman
Apr 6, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Joanna Joyner-Matos, Lauren J Chapman
Nov 17, 2012·Journal of Insect Physiology·Timothy M SesterhennLauren J Chapman
Sep 6, 2019·Annual Review of Marine Science·Gabriel E Machovsky-Capuska, David Raubenheimer
Oct 11, 2017·Annual Review of Entomology·Jon F HarrisonWilco C E P Verberk
Sep 27, 2020·Archives of Insect Biochemistry and Physiology·Maribet Gamboa
May 13, 2021·Biology Letters·James I FrakesH Arthur Woods
Oct 16, 2021·The Journal of Experimental Biology·Sydney Silver, Andrew Donini

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