The olfactory response of the reindeer nose bot fly,Cephenemyia trompe (Oestridae), to components from interdigital pheromone gland and urine from the host reindeer,Rangifer tarandus |
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Authors: | Bjørn Å Tømmerås Atle Wibe Arne C Nilssen John R Anderson |
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Institution: | (1) Department of Zoology, University of Trondheim — AVH, N-7055 Dragvoll, Norway;(2) Department of Zoology, Tromsø Museum, University of Tromsø, N-9000 Tromsø, Norway;(3) Department of Entomological Sciences, University of California, 94720 Berkeley, CA, USA;(4) Present address: Norwegian Institute for Nature Research, Tumgasletta 2, N-7005 Trondheim, Norway |
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Abstract: | Summary The linked gas chromatographical/electroan-tennogram (GC/EAG) technique revealed that the parasitic reindeer nose bot fly is able to specifically sense components produced by the interdigital pheromone gland of reindeer. The head-space extraction technique, with Porapak Q as the collecting polymer, was used to trap pheromone gland and urine components used to assess fly responses. One component from reindeer urine also was a potent stimulus for the sensory neurons of the fly. These components can be important chemical signals to the flies for long distance orientation towards host animals. This is the first report on EAG in Oestridae. |
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Keywords: | endoparasite pheromone host attraction Diptera Cephenemyia trompe Rangifer tarandus |
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