2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
6/06/2017 | 9:45 AM - 10:00 AM | IDENTIFYING REASONABLE EXPECTATIONS FOR URBAN ASSESSMENT AND RESTORATION | 302A
IDENTIFYING REASONABLE EXPECTATIONS FOR URBAN ASSESSMENT AND RESTORATION
Urbanization degrades biological conditions in streams in an almost universally accepted manner that results in the impairment of streams that requires states pursue a remedy. Restoration practices are frequently implemented as this remedy. The impairment decision is frequently based on a single, least-disturbed reference based biological condition target that also serves as the restoration goal. However, is a single biological target based on reference condition an achievable goal? And what other structure might be used instead? We analyzed biological conditions along gradients of urbanization in North Carolina to explore these questions. We found that essentially no streams in urban watersheds met least-disturbed reference based targets. However, biological condition did vary within these watersheds, with some maintaining better biological conditions than others. We developed a biological potential scoring framework to evaluate sites that were further from meeting what is attainable in urban streams and used that to explore and compare watershed and reach scale predictors to try and understand this variability. This scoring framework is consistent with the biological condition gradient concept and seeks to develop existing realistic targets for urban assessment and restoration.
- S26 Biological Success Criteria for Stream Restoration Project Monitoring: Are We Still Searching for Unicorns?
- C16 Restoration Ecology
- S23 Rehabilitating urban streams: perspectives from science and management
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Presenters/Authors
Michael Paul
(), Tetra Tech, Inc., Michael.Paul@tetratech.com;
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Diane Allen
(), Tetra Tech Inc., Diane.Allen@tetratech.com;
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