caa a22 4500 397572336 CHVBK 20180308164845.0 cr unu---uuuuu 161202e19960601xx s 000 0 eng 10.1093/ee/25.3.559 doi (NATIONALLICENCE)oxford-10.1093/ee/25.3.559 Sampling Method Assessment and Quantification of Temporal Shifts in Densities of Grasshopper Species (Orthoptera: Acrididae) Between Winter Wheat, Triticum aestivum, and Adjacent Rangeland [Elektronische Daten] [Robert L. Gillespie, William P. Kemp] In this study,we determined that 2 sampling methods (D-Vac and sweep net) taken at weekly intervals could be used to sample grasshopper species across 2 adjacent habitats of winter wheat and rangeland. We also quantified temporal density estimate shifts between winter wheat, Triticum aestivum L., and rangeland by migratory grasshoppers, Melanoplus sanguinipes (F.), twostriped grasshopper, M. bivittatus (Say), and Packard grasshopper, M. packardii Scudder, all 3 species coinhabit these areas. Specifically, at 4 study sites with the highest grasshopper densities there were significant seasonal shifts in density estimates of these species between winter wheat and rangeland suggesting that these species dispersed between habitats. At a 5th site, sweep net sampling detected a shift in density estimates between habitats by M.sanguinipes and D-Vac sampling at this site suggested there was a similar trend. At 4 study sites such shifts in density estimates did not occur suggesting that no dispersal occurred or it was not detectable at these sites using our sampling methods. In all but 1 case the density of these species, were lower than those where density estimate shifts occurred. © 1996 Entomological Society of America Pest Management and Sampling nationallicence grasshoppers nationallicence density estimates nationallicence shifts nationallicence dispersal nationallicence habitat nationallicence Gillespie Robert L. Cooperative Extension, Washington State University, Courthouse, P.O. Box 37, Ephrata, WA 98823 aut Kemp William P. Rangeland Insect Laboratory, USDA-ARS, Bozeman, MT 59717 aut Environmental Entomology Oxford University Press 25/3(1996-06-01), 559-569 0046-225X 25:3<559 1996 25 ee https://doi.org/10.1093/ee/25.3.559 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/ee/25.3.559 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gillespie Robert L. Cooperative Extension, Washington State University, Courthouse, P.O. Box 37, Ephrata, WA 98823 aut NATIONALLICENCE 700 1- Kemp William P. Rangeland Insect Laboratory, USDA-ARS, Bozeman, MT 59717 aut NATIONALLICENCE 773 0- Environmental Entomology Oxford University Press 25/3(1996-06-01), 559-569 0046-225X 25:3<559 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