Reavie, EuanUniversity of Minnesota Duluth. Natural Resources Research InstituteHeathcote, Adam JAmerican Geophysical Union2015-04-142017-04-142015-04-142017-04-142014https://hdl.handle.net/11299/186097Research posters on Great Lakes studies by faculty of the Center for Water and the Environment, Natural Resources Research Institute, University of Minnesota Duluth, Ely Field StationInferring condition from fossil biological assemblages assumes a strong relationship between the variable you want to infer and patterns in the assemblages. In recent years it has become apparent that several species-based indices to infer environmental conditions in paleorecords are providing meaningless results. The following are steps you can take to ensure valid reconstructions. This poster demonstrates a phosphorus inference model based on Great Lakes diatom assemblages, but these methods are easily transferred to many indicators; e.g. foraminifera/sealevel, chironomids/oxygen, diatoms/salinity, etc.en-USNatural Resources Research InstituteUniversity of Minnesota DuluthPoster