2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
5/23/2019 | 9:45 AM - 10:00 AM | INVESTIGATING THE EFFECTS OF NETWORK POSITION ON STREAMFISH AND MACROINVERTEBRATE COMMUNITY STABILITY AND STRUCTURE IN DIFFERENT LANDSCAPES | 151 G
INVESTIGATING THE EFFECTS OF NETWORK POSITION ON STREAMFISH AND MACROINVERTEBRATE COMMUNITY STABILITY AND STRUCTURE IN DIFFERENT LANDSCAPES
The Network Position Hypothesis postulates that isolated reaches (headwaters) are controlled by environmental effects and central reaches (downstream) controlled by spatial or dispersal effects. In community ecology, there is a lack of consensus on the effects of network position on community structure and little information about its effects on community stability. These uncertainties are prohibitive to making informed conservation and management decisions. Thus, investigating how community patterns and stability vary in space and time is a necessary step. We explored this gap by using multiple streamfish and macroinvertebrate datasets from different US management agencies. In this study, we asked the question “How does network structure and position control the structure and stability of streamfish and macroinvertebrate communities in different landscapes?”. We quantified stability with multiple metrics and compared across headwater and downstream sites and across landscapes. We used Variation Partitioning to decompose variation in communities into environmental, spatial, and temporal factors and did the same for headwater and downstream sites separately.
- Connectivity
- Fish
- Network
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Presenters/Authors
Steven Bittner
(), University of Oklahoma, stevenmbittner@gmail.com;
ASHA DISCLOSURE:
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Daniel Allen
(), University of Oklahoma, dcallen@ou.edu;
ASHA DISCLOSURE:
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