Relationship between Nest and Body Temperature and Microclimate in the Paper Wasp Polistes dominula

Author:

Kovac Helmut1ORCID,Nagy Julia Magdalena1,Käfer Helmut1ORCID,Stabentheiner Anton1ORCID

Affiliation:

1. Institute of Biology, University of Graz, 8010 Graz, Austria

Abstract

The paper wasp Polistes dominula is a thermophilic species originating from the Mediterranean climate, but is now widely spread in Europe. They live in quite differing habitats; and as synanthropic species, they have been established in human settlement areas. They build a single small comb at protected places with a favorable microclimate. We measured the temperature of the wasps, the nests and their environment at typical nesting sides in Austria (Europe) in the temperate climate, in order to reveal relationships between nest and body temperature and the habitats’ microclimate. The temperatures of the comb and of the wasps’ body were in a wide range (~20–37 °C) above the ambient air temperature at the nest. This is an advantage as higher temperatures accelerate the development speed of the brood. However, the mean comb temperature did not exceed approximately 38.6 °C. This was managed by cooling efforts of the adult wasps. The ambient air temperature near the nest (~1–2 cm) was always clearly elevated above the ambient air temperature at a local standard weather station in the habitat. A comparison with climate-model-generated macroclimate data revealed the necessity of measuring microclimate data for a reliable description of the insects’ thermal environment.

Funder

Austrian Science Fund

Publisher

MDPI AG

Subject

Insect Science

Reference47 articles.

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5. Hymenoptera Aculeata Westfalica. Die Faltenwespen von Nordrhein-Westfalen. (Hymenoptera, Vespoidea; Vespidae und Eumenidae) (Soziale Papier-und Lehmwespen);Woydak;Abh. Westfälischen Mus. Naturkunde,2006

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