ARBOREAL ARTHROPOD COMMUNITY STRUCTURE IN AN EARLY SUCCESSIONAL CONIFEROUS FOREST ECOSYSTEM IN WESTERN OREGON

ARBOREAL ARTHROPOD COMMUNITY STRUCTURE IN AN EARLY SUCCESSIONAL CONIFEROUS FOREST ECOSYSTEM IN WESTERN OREGON

This study was designed to characterize arboreal arthropod community structure in an early successional coniferous ecosystem. We sampled six-year-old snowbrush (Ceanothus velutinus Dougl. ex Hook) and Douglasfir (Pseudotsuga menziesii (Mirb.) Franco) at the H. J. Andrews Experimental Forest in weste...

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Bibliographic Details
Published in:The Great Basin naturalist Vol. 48; no. 3; pp. 327 - 333
Main Authors: Schowalter, T. D., Stafford, S. G., Slagle, R. L.
Format: Journal Article
Language:English
Published: Brigham Young University 31-07-1988
Subjects:
Ants
Arthropod communities
Arthropods
Ceanothus velutinus
Community structure
Coniferous forests
Forest ecology
Insect communities
Insect ecology
Plants
Pseudotsuga menziesii
Taxa
USA, Oregon
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Summary:This study was designed to characterize arboreal arthropod community structure in an early successional coniferous ecosystem. We sampled six-year-old snowbrush (Ceanothus velutinus Dougl. ex Hook) and Douglasfir (Pseudotsuga menziesii (Mirb.) Franco) at the H. J. Andrews Experimental Forest in western Oregon during 1982. The arthropod fauna was dominated in terms of densities by psyllids and aphids on snowbrush and by adelgids and cecidomyiids on Douglas-fir. Significant associations among taxa, e.g., positive correlation between aphids and ants, indicated trophic interactions or similar responses to host conditions. Significant seasonality was observed for individual taxa and for the community, reflecting the integration of individual life-history patterns. Significant spatial pattern (patchiness) in the arthropod community may reflect the influence of faunas on individual plants within neighborhoods and/or the influence of ant foraging patterns.
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ISSN:0017-3614