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This layer represents fundamentally suitable and unsuitable habitat for freshwater mussels in the Meramec Basin as modeled by these authors on May 17, 2017 based on spatial data ranging from 1990 to 2014. Identification of habitat characteristics associated with the presence of freshwater mussels is challenging but crucial for the conservation of this declining fauna. Most mussel species are found in multi-species assemblages suggesting that physical factors influence presence similarly across species. In lotic environments, geomorphic and hydraulic characteristics appear to be important factors for predicting mussel presence. We used maximum entropy (MaxEnt) modeling to evaluate hydrogeomorphic variables associated...
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Overall Rank RAP Watersheds The Riverscape Analysis Project (RAP) is a web-based GIS Decision Support System that was designed to assist in salmon conservation across North Pacific Rim (NPR) Rivers. RAP is based upon a robust classification (typology) of rivers and river habitats which is aimed at mapping habitat quality and abundance, as well as conserving the existing potential production of salmon and the rivers that they spawn and rear in. Key elements of the RAP system include relative habitat rankings, GIS tools to extract and download data, a subset of high resolution remote sensing imagery, and models of salmon habitat suitability based on current and future climate scenarios.


    map background search result map search result map Overall ranking of physical habitat complexity of watersheds (including lakes), moderated by anthropogenic influences.. Niche model results predicting fundamentally suitable and unsuitable habitat for freshwater mussel concentrations in the Meramec Basin Niche model results predicting fundamentally suitable and unsuitable habitat for freshwater mussel concentrations in the Meramec Basin Overall ranking of physical habitat complexity of watersheds (including lakes), moderated by anthropogenic influences..