caa a22 4500 388093412 CHVBK 20180307125258.0 cr unu---uuuuu 161130e199904 xx s 000 0 eng 10.4039/Ent131269-2 doi S0008347X00009895 pii (NATIONALLICENCE)cambridge-10.4039/Ent131269-2 VERTICAL AND TEMPORAL DISTRIBUTION OF COCCINELLIDAE (COLEOPTERA) IN FLIGHT OVER AN AGRICULTURAL LANDSCAPE [Elektronische Daten] Twenty-one species of Coccinellidae were trapped in flight between 0.8 and 14.3 m from 1992 to 1995 in New Brunswick, Canada. Catches were larger at 0.8 m, with a rapidly decreasing capture rate leading, on average, to more than 50% of the catches at or below 3.8 m every year. The capture rate at 14.3 m was lower than at any of the nine other levels. Hippodamia convergeas Guérin-Méneville flights were distributed close to the ground, with more than 50% of catches at 0.8 m, whereas Mulsantina hudsonica Casey flights were similar at all levels. The strong decreasing gradient of flight as a function of height for Coccinellidae (−0.825) was strongly influenced by that of H. convergens (−1.809) and of Coccinella septempunctata L. (−0.921) and Coccinella trifasciata perplexa Mulsant (−0.715). All other species had a slope of less than −0.5. The temporal distribution of flights was species specific, with maximum activity before the end of June for most, but this was not reflected in the frequency of catches for the entire family, which did not differ throughout the season, although they tended to be lower after mid-August. The weekly vertical flight distribution differed from the average distribution pattern only occasionally, probably during periods of long-distance dispersal. These profiles and known catches from a single trap location can be used to estimate dispersal activity at different heights. Copyright © Entomological Society of Canada 1999 Boiteau Gilles Potato Research Centre, Agriculture and Agri-Food Canada, P.O. Box 20280, 850 Lincoln Road, Fredericton, New Brunswick, Canada E3B 427 Bousquet Yves Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, K.W. Neatby Building, 960 Carling Avenue, Ottawa, Ontario, Canada KIA OC6 Osborn W.P.L. Potato Research Centre, Agriculture and Agri-Food Canada, P.O. Box 20280, 850 Lincoln Road, Fredericton, New Brunswick, Canada E3B 427 The Canadian Entomologist Cambridge University Press 131/2(1999-04), 269-277 0008-347X 131:2<269 1999 131 TCE https://doi.org/10.4039/Ent131269-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.4039/Ent131269-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Boiteau Gilles Potato Research Centre, Agriculture and Agri-Food Canada, P.O. Box 20280, 850 Lincoln Road, Fredericton, New Brunswick, Canada E3B 427 NATIONALLICENCE 700 1- Bousquet Yves Eastern Cereal and Oilseed Research Centre, Agriculture and Agri-Food Canada, K.W. Neatby Building, 960 Carling Avenue, Ottawa, Ontario, Canada KIA OC6 NATIONALLICENCE 700 1- Osborn W.P.L. Potato Research Centre, Agriculture and Agri-Food Canada, P.O. Box 20280, 850 Lincoln Road, Fredericton, New Brunswick, Canada E3B 427 NATIONALLICENCE 773 0- The Canadian Entomologist Cambridge University Press 131/2(1999-04), 269-277 0008-347X 131:2<269 1999 131 TCE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence SWISSBIB 388093412 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge