LOCAL EFFECTS OF WOOD-ADDITION ON STREAM MACROINVERTEBRATES IN GUNN CREEK, OREGON, USA.
Historically, much of the natural woody debris in streams has been removed due to forestry and management activities in the pacific Northwest of North America. Modern restoration plans include the addition of woody debris back into the streams. The objective of this project to evaluate the potential effects of recent wood additions on macroinvertebrate communities in Gunn Creek. We collected samples three replicated surber samples in four riffles above and four riffles below the woody debris woody addition. We conducted a similar procedure at Palmer Creek, our reference site, where there has not been an addition of woody debris. We will sort and identify specimens up to family taxonomic level. We expect to see most significant changes in aquatic invertebrate’s communities (densities and species composition) in close proximity to the wood addition. This effect will decrease in both downstream and upstream directions. We will also explore potential effects on species richness. And the consequences for higher trophic levels.
TeLa Branstetter (Primary Presenter/Author,Co-Presenter/Co-Author), Oregon State University , firstname.lastname@example.org;
William Gerth (Co-Presenter/Co-Author), Oregon State University, email@example.com;
Ivan Arismendi (Co-Presenter/Co-Author), Oregon State University, Department of Fisheries & Wildlife, firstname.lastname@example.org;