2022 Early Hearing Detection & Intervention Virtual Conference

March 13 - 15, 2022

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6/08/2017  |   10:15 AM - 10:30 AM   |  CO-OCCURRENCE AND SPECIES INTERACTION PATTERNS OF MUSSEL SPECIES WITHIN BEDS   |  302C

CO-OCCURRENCE AND SPECIES INTERACTION PATTERNS OF MUSSEL SPECIES WITHIN BEDS

To aid in the conservation of freshwater mussels (Bivalvia, Unionidae), a better understanding of mussel species composition and co-occurrence patterns is needed. We examined patterns among mussel occurrence, abundance, and biomass in the Little River, a 6th order tributary of the Red River in southeastern Oklahoma with high mussel species richness (35 species). We semi-quantitatively sampled 42 mussel beds along a 111 km stretch of the river by conducting timed searches. In addition, we quantitatively sampled 12 large mussel beds by excavating 0.25m2 quadrats. We are analyzing these data to look for patterns of co-occurrence and association that might indicate underlying species interactions. To date we have found strong, positive relationships between the biomass of three dominant species (Actinonaias ligamentina, Amblema plicata, and Quadrula pustulosa) and the abundance of most rare species.

  • C05 Unionid Ecology
  • C03 Invertebrates
  • C11 Community Ecology

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Presenters/Authors

Kathryn Murphy (), University of Oklahoma, Kathrynmurphy@ou.edu;


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Caryn C. Vaughn (), University of Oklahoma, carynvaughn@gmail;


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Lara Souza (), University of Oklahoma , lara.souza@ou.edu;


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