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Vertical and seasonal variation in canopy arthropod communities in an old-growth conifer forest in southwestern Washington, USA

Published online by Cambridge University Press:  10 July 2009

T.D. Schowalter  and
L.M. Ganio
T.D. Schowalter*
Affiliation:
Department of Entomology, Oregan State University, Corvallis, OR97331-2907, USA
L.M. Ganio
Affiliation:
Department of Forest Science, Oregan State University, Corvallis, OR97331-2907, USA
*
*Fax: 541 737 3643 E-mail: schowalt@bcc.orst.edu
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Abstract

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.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 88 , Issue 6 , December 1998 , pp. 633 - 640
Copyright
Copyright © Cambridge University Press 1998

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References

Blanton, C.M. (1990) Canopy arthropod sampling: a comparison of collapsible bag and fogging methods. journal of Agricultural Entomology 7, 41–50.Google Scholar
Didham, R.K. (1997) Dipteran tree-crown assemblages in a diverse southern temperate rainforest, pp. 320–343 in Stork, N.E., Adis, J. & Didham, R.K. (Eds) Canopy arthropods. London, Chapman& Hall.Google Scholar
Erwin, T.L. (1995) Measuring arthropod biodiversity in the tropical forest canopy, pp. 109–127 in Lowman, M.D. & Nadkarni, N.M. (Eds) Forest canopies. San Diego, Academic Press.Google Scholar
Majer, J.D & Recher, H.F. (1988) Invertebrate communities on Western Australian eucalypts; a comparison of branch clipping and chemical knockdown procedures. Australian journal of Ecology 13, 269–272.CrossRefGoogle Scholar
Manly, B.F. (1991) Randomization and Monte Carlo methods in biology. New York, Chapman & Hall.CrossRefGoogle Scholar
Moran, V.C.& Southwood, T.R.E. (1982) The guild composition of arthropod communities in trees. Journal of Animal Ecology 51, 289–306.CrossRefGoogle Scholar
SAS Institute, Inc. (1982) SAS user's guide: statistics. Cary, North Carolina, SAS Institute, Inc.Google Scholar
Schowalter, T.D. (1994) Invertebrate community structure and herbivory in a tropical rain forest canopy in Puerto Rico following Hurricane Hugo. Biotropica 26, 312–319.CrossRefGoogle Scholar
Schowalter, T.D. (1995) Canopy arthropod communities in relation to forest age and alternative harvest practices in western Oregon. Forest Ecology and Management 78, 115–125.CrossRefGoogle Scholar
Schowalter, T.D., Hargrove, W.W. & Crossley, D.A. Jr., (1986) Herbivory in forested ecosystems. Annual Review of Entomology 31, 177–196.CrossRefGoogle Scholar
Shaw, D.C. (1998) Distribution of larval colonies of Lophocampa argentata Packard, the silver spotted tiger moth (Lepidoptera: Arctiidae), in an old growth Douglas-fir/western hemlock forest canopy, Cascade Mountains, Washington State, USA. Canadian Field Naturalist 111, 250–253.CrossRefGoogle Scholar
Stork, N.E. (1987) Guild structure of arthropods from Bornean rain forest trees. Ecological Entomology 12,69–80.CrossRefGoogle Scholar
Stork, N.E., Didham, R.K. & Adis, J. (1997) Canopy arthropod studies for the future, pp. 551–561 in Stork, N.E., Adis, J. & Didham, R.K. (Eds) Canopy arthropods.London, Chapman & Hall.Google Scholar
Strong, D.R., Lawton, J.H. & Southwood, R. (1984) Insects on plants: community patterns and mechanisms.Cambridge Massachusetts, Harvard University Press.Google Scholar
Winchester, N.N. (1997) Canopy arthropods of coastal Sitka spruce trees on Vancouver Island, British Columbia, Canada, pp. 151–168 in Stork, N.E., Adis, J. & Didham, R.K. (Eds) Canopy arthropods. London, Chapman & HallGoogle Scholar