2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
6/08/2017 | 9:15 AM - 9:30 AM | THE ROLE OF WOOD AS MACROINVERTEBRATE HABITAT IN THE POMME DE TERRE RIVER, AN AGRICULTURAL STREAM IN WEST-CENTRAL MINNESOTA | 306C
THE ROLE OF WOOD AS MACROINVERTEBRATE HABITAT IN THE POMME DE TERRE RIVER, AN AGRICULTURAL STREAM IN WEST-CENTRAL MINNESOTA
In order to investigate the role of wood as habitat in an agricultural stream we collected paired macroinvertebrate samples from wood and benthic habitats in the Pomme de Terre River (PTR) upstream and downstream from an impoundment (N=5 in each reach). We collected 37 taxa from wood and benthic environments, 26 of which were insects. Twelve taxa occurred only on wood while only 1 was unique to the benthic habitat. Taxon richness did not differ significantly between benthic and wood habitats. However, when upstream and downstream reaches were analyzed separately we noted that significantly more taxa occurred on upstream wood samples (paired t-test, p<0.05). The PTR in this reach is dominated by sand and silt, while cobble occurred more frequently downstream. The % abundance of scrapers, shredders and plant piercers was significantly greater on wood than in benthic habitats, while collector-gatherers were relatively more abundant in the benthic habitat (paired t-tests, p<0.05). Wood provides stable habitat and access to food resources for macroinvertebrates, particularly in stretches of the stream that lack other kinds of coarse substrate.
- C11 Community Ecology
- C18 Biodiversity
- C03 Invertebrates
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Presenters/Authors
Lily Fulton
(), University of Minnesota, Morris , fulto072@morris.umn.edu;
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Jackob Lutchen
(), University of Kansas, lutch006@ku.edu;
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Bradley Ramin
(), University of Minnesota, Morris, ramin009;
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