caa a22 4500 605514003 CHVBK 20210128100702.0 cr unu---uuuuu 210128e20150801xx s 000 0 eng 10.1007/s00360-015-0915-7 doi (NATIONALLICENCE)springer-10.1007/s00360-015-0915-7 Respiration and metabolism of the resting European paper wasp ( Polistes dominulus ) [Elektronische Daten] [Helmut Käfer, Helmut Kovac, Barbara Oswald, Anton Stabentheiner] The European paper wasp, Polistes dominulus Christ, is an abundant wasp species in South and Central Europe which dispersed to the north in recent times. Polistes dominulus exhibits an energy-extensive mode of life, spending much time resting at the nest, which should be reflected in adaptations regarding gas exchange and standard metabolism. We analysed the resting metabolism (CO2 emission) of Polistes dominulus workers in the ambient temperature range an individual may be exposed to during a breeding season (T a=2.4-40.6°C) via flow through respirometry. Behaviour and endothermic activity were assessed by infrared thermography. With rising T a, CO2 release followed an exponential increase from 27 to 149 and 802nlg−1min−1 at T a=3, 20 and 35°C, respectively. Measurements of the thermal regime at the nest showed that resting P. dominulus are most of the time in the lower range of their standard metabolic curve. A comparison with a "highly energetic” wasp like Vespula sp. revealed that Polistes dominulus not only optimises behaviour but also reduces metabolism to save energy. The CO2 emission patterns changed with ambient temperature, from discontinuous (≤25°C) to cyclic (25-36°C) and continuous gas exchange at higher temperatures. A pronounced break appeared in the data progression regarding cycle frequency and CO2 emission per gas exchange cycle between 15 and 10°C. This striking change in gas exchange features indicates a physiological adaptation to special respiratory requirements at low temperatures. The Author(s), 2015 Polistes nationallicence Resting metabolism nationallicence Respiration nationallicence Adaptation nationallicence Environment nationallicence Insects nationallicence Käfer Helmut Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, 8010, Graz, Austria aut Kovac Helmut Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, 8010, Graz, Austria aut Oswald Barbara Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, 8010, Graz, Austria aut Stabentheiner Anton Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, 8010, Graz, Austria aut Journal of Comparative Physiology B Springer Berlin Heidelberg 185/6(2015-08-01), 647-658 0174-1578 185:6<647 2015 185 360 https://doi.org/10.1007/s00360-015-0915-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00360-015-0915-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Käfer Helmut Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, 8010, Graz, Austria aut NATIONALLICENCE 700 1- Kovac Helmut Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, 8010, Graz, Austria aut NATIONALLICENCE 700 1- Oswald Barbara Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, 8010, Graz, Austria aut NATIONALLICENCE 700 1- Stabentheiner Anton Institut für Zoologie, Karl-Franzens-Universität Graz, Universitätsplatz 2, 8010, Graz, Austria aut NATIONALLICENCE 773 0- Journal of Comparative Physiology B Springer Berlin Heidelberg 185/6(2015-08-01), 647-658 0174-1578 185:6<647 2015 185 360