caa a22 4500 388035854 CHVBK 20180307125004.0 cr unu---uuuuu 161130e199812 xx s 000 0 eng 10.1017/S0007485300054304 doi S0007485300054304 pii (NATIONALLICENCE)cambridge-10.1017/S0007485300054304 Vertical and seasonal variation in canopy arthropod communities in an old-growth conifer forest in southwestern Washington, USA [Elektronische Daten] Variation in canopy arthropod abundances and community structure were evaluated in an old-growth (500-year-old) forest at the Wind River Canopy Crane Research Facility in southwestern Washington, USA. Arthropods were sampled at three canopy levels and two seasons in each of four tree species (Pseudotsuga menziesii, Tsuga heterophylla, Abies grandis, and Thuja plicata). The four tree species had distinguishable arthropod species compositions and community organization. Thuja plicata (Cupressaceae) had a particularly distinctive canopy fauna dominated by several mite taxa which did not occur on the other tree species (all Pinaceae). Pseudotsuga menziesii hosted a relatively diverse arthropod fauna with greatest richness of taxa and functional groups. Distinct arthropod assemblages were not observed among canopy levels and sampling dates, but these factors significantly influenced abundances of 63% of the arthropod taxa, either individually or interactively with other factors. These data indicate that forests managed for fewer tree species eliminate important components of arthropod diversity in Pacific Northwest forests and that sampling for biodiversity assessment also should represent season and canopy level. Copyright © Cambridge University Press 1998 Schowalter T.D. Department of Entomology, Oregan State University, Corvallis, OR97331-2907, USA Ganio L.M. Department of Forest Science, Oregan State University, Corvallis, OR97331-2907, USA Bulletin of Entomological Research Cambridge University Press 88/6(1998-12), 633-640 0007-4853 88:6<633 1998 88 BER https://doi.org/10.1017/S0007485300054304 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0007485300054304 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schowalter T.D. Department of Entomology, Oregan State University, Corvallis, OR97331-2907, USA NATIONALLICENCE 700 1- Ganio L.M. Department of Forest Science, Oregan State University, Corvallis, OR97331-2907, USA NATIONALLICENCE 773 0- Bulletin of Entomological Research Cambridge University Press 88/6(1998-12), 633-640 0007-4853 88:6<633 1998 88 BER CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge