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Respiration patterns of resting wasps (Vespula sp.).
- Source :
-
Journal of insect physiology [J Insect Physiol] 2013 Apr; Vol. 59 (4), pp. 475-86. Date of Electronic Publication: 2013 Feb 09. - Publication Year :
- 2013
-
Abstract
- We investigated the respiration patterns of wasps (Vespula sp.) in their viable temperature range (2.9-42.4°C) by measuring CO2 production and locomotor and endothermic activity. Wasps showed cycles of an interburst-burst type at low ambient temperatures (Ta<5°C) or typical discontinuous gas exchange patterns with closed, flutter and open phases. At high Ta of >31°C, CO2 emission became cyclic. With rising Ta they enhanced CO2-emission primarily by an exponential increase in respiration frequency, from 2.6 mHz at 4.7°C to 74 mHz at 39.7°C. In the same range of Ta CO2 release per cycle decreased from 38.9 to 26.4 μl g(-1)cycle(-1). A comparison of wasps with other insects showed that they are among the insects with a low respiratory frequency at a given resting metabolic rate (RMR), and a relatively flat increase of respiratory frequency with RMR. CO2 emission was always accompanied by abdominal respiration movements in all open phases and in 71.4% of the flutter phases, often accompanied by body movements. Results suggest that resting wasps gain their highly efficient gas exchange to a considerable extent via the length and type of respiration movements.<br /> (Copyright © 2013 Elsevier Ltd. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1879-1611
- Volume :
- 59
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Journal of insect physiology
- Publication Type :
- Academic Journal
- Accession number :
- 23399474
- Full Text :
- https://doi.org/10.1016/j.jinsphys.2013.01.012