Flight distance and return capacity of Polistes lanio lanio (Hymenoptera: Vespidae) workers
Abstract
Social wasps find prey mainly using olfactory cues when foraging. Flight area and the ability to return to the nest after this activity was studied for the predatory wasp Polistes lanio lanio (Fabricius) (Hymenoptera: Vespidae) using mark-recapture techniques. One hundred workers of this wasp were removed from 20 nests (5 per nest), marked on the mesothorax, and released after 2 d. Wasps were released at different times and distances to reduce memorization of the flight path. We determined that P. lanio lanio workers’ hypothetical foraging area was 13.2 km2 based on their greatest return capacity to nests.
Key Words: foraging; nests; social wasps; workers
Resumo
Vespas sociais localizam lagartas usando principalmente pistas olfativas quando forrageando. A área de voo e a capacidade de retornar ao ninho após esta atividade foram estudadas para a vespa predadora Polistes lanio lanio (Fabricius) (Hymenoptera: Vespidae) usando técnicas de marcação e recaptura. Cem operárias desta vespa foram removidas de 20 ninhos (5 por ninho) marcadas no mesotórax e liberadas após dois dias. As vespas foram liberadas em diferentes momentos e distâncias para reduzir a memorização do trajeto do voo. Nós determinamos que a área hipotética de forrageamento das operárias de P. lanio lanio foi de 13.2 km2 com base em sua maior capacidade de retorno aos ninhos.
Palavras Chave: forrageamento; ninhos; operárias; vespas sociais
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