caa a22 4500 397570562 CHVBK 20180308164840.0 cr unu---uuuuu 161202e19961201xx s 000 0 eng 10.1093/ee/25.6.1304 doi (NATIONALLICENCE)oxford-10.1093/ee/25.6.1304 Local Dispersal of Overwintered Colorado Potato Beetle (Chrysomelidae: Coleoptera) Determined by Mark and Recapture [Elektronische Daten] [Peter A. Follett, William W. Cantelo, George K. Roderick] Three mark-recapture experiments were conducted to determine patterns of movement in the Colorado potato beetle, Leptinotarsa decemlineata (Say), over an agricultural landscape in Maryland. In the 1st experiment, beetles were released from a central point and recaptured 5-20 d afterward in potato trap fields extending outward in 4 compass directions to a maximum distance of 0.65 km. Approximately 30% of released beetles were recaptured. Recaptures declined rapidly with distance, and a few beetles were recaptured 0.65 km from the release point after 5 d. A stream and a dense winter cover crop may have acted as impediments to movement over part of the experimental area. In the 2nd and 3rd experiments, beetles were released at various distances in 4 compass directions from a central "trap” field and recaptured 5 d later. Recapture rates were = 20% when beetles were released at 50 and 100 m and 6.5% when released at 300 m. Direction of release was a significant variable in the recapture rate in one of these experiments but not in the other. The results suggest that effective field rotation to reduce beetle population densities from year to year will require a distance of ≥0.5 km. © 1996 Entomological Society of America Population Ecology nationallicence Leptinotarsa decemlineata nationallicence mark-recapture nationallicence dispersal nationallicence host plant finding nationallicence crop rotation nationallicence Follett Peter A. Center for Conservation Research & Training, 3050 Maile Way, Gilmore 409, University of Hawaii at Manoa, Honolulu, HI 96822 aut Cantelo William W. Center for Conservation Research & Training, 3050 Maile Way, Gilmore 409, University of Hawaii at Manoa, Honolulu, HI 96822 aut Roderick George K. Center for Conservation Research & Training, 3050 Maile Way, Gilmore 409, University of Hawaii at Manoa, Honolulu, HI 96822 aut Environmental Entomology Oxford University Press 25/6(1996-12-01), 1304-1311 0046-225X 25:6<1304 1996 25 ee https://doi.org/10.1093/ee/25.6.1304 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/ee/25.6.1304 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Follett Peter A. Center for Conservation Research & Training, 3050 Maile Way, Gilmore 409, University of Hawaii at Manoa, Honolulu, HI 96822 aut NATIONALLICENCE 700 1- Cantelo William W. Center for Conservation Research & Training, 3050 Maile Way, Gilmore 409, University of Hawaii at Manoa, Honolulu, HI 96822 aut NATIONALLICENCE 700 1- Roderick George K. Center for Conservation Research & Training, 3050 Maile Way, Gilmore 409, University of Hawaii at Manoa, Honolulu, HI 96822 aut NATIONALLICENCE 773 0- Environmental Entomology Oxford University Press 25/6(1996-12-01), 1304-1311 0046-225X 25:6<1304 1996 25 ee Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford