2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/27/2021 | 2:00 PM - 3:30 PM | A PRELIMINARY COMPARISON OF MACROINVERTEBRATE COMMUNITIES WITHIN INVASIVE STARRY STONEWORT (NITELLOPSIS OBTUSA) AND NATIVE PLANT STANDS | Virtual Platform
A PRELIMINARY COMPARISON OF MACROINVERTEBRATE COMMUNITIES WITHIN INVASIVE STARRY STONEWORT (NITELLOPSIS OBTUSA) AND NATIVE PLANT STANDS
The composition of macroinvertebrate communities is dictated by the biotic, abiotic, and historical conditions within a given aquatic system. For communities found within submerged aquatic vegetation (SAV), the arrival of a dominant non-native species may reconfigure the physical, chemical, or biotic nature of those conditions. Starry stonewort (Nittelopsis obtusa), a Eurasian macroalgae, recently invaded habitats in western New York, producing some nearly monospecific stands. We compared macroinvertebrate communities within starry stonewort stands to communities gathered from native stands of SAV using standard D-net sampling techniques. Preliminary observations indicate no difference in total abundance or taxa richness of macroinvertebrates among the SAV stands. However, analyses of community composition suggested there were several taxa under or over-represented in stonewort patches. Snails dominated stonewort patches (64%), whereas midges and isopods (34%) and ‘other’ (53%) were dominant in elodea and muskgrass patches, respectively. These preliminary results suggest that invasive SAV’s may affect local macroinvertebrate community composition even if total abundance and richness is unaffected.
- Food webs
- Habitat
- Ecosystem
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Presenters/Authors
Alexander Krest
(), Great Lake Center, Buffalo State College, 1300 Elmwood Avenue, Buffalo, NY 14222 / Biology Department, Buffalo State College, 1300 Elmwood Avenue, Buffalo, NY 14222 , krestac01@mail.buffalostate.edu;
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Christopher Pennuto
(), Great Lake Center, Buffalo State College, 1300 Elmwood Avenue, Buffalo, NY 14222 / Biology Department, Buffalo State College, 1300 Elmwood Avenue, Buffalo, NY 14222 , PENNUTCM@buffalostate.edu;
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