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Abstract (from http://onlinelibrary.wiley.com/doi/10.1111/fwb.12569/abstract): Lakes Michigan and Huron, which are undergoing oligotrophication after reduction of phosphorus loading, invasion by dreissenid mussels and variation in climate, provide an opportunity to conduct large-scale evaluation of the relative importance of these changes for lake productivity. We used remote sensing, field data and an information-theoretic approach to identify factors that showed statistical relationships with observed changes in chlorophyll a (chla) and primary production (PP). Spring phosphorus (TP), annual mean chla and PP have all declined significantly in both lakes since the late 1990s. Additionally, monthly mean...
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Fisheries and aquatic habitats throughout the United States are in dire need of protection or restoration because human activities have resulted in severe degradation of those habitats. Further, future climatic changes will continue to affect human land-use, temperature, and water flows. Natural resource managers need to identify and prioritize habitats so that limited time and funding can be focused on habitats that are in most need of protection both now and in the future, based on projected climate changes. This project was comprised of a team of scientists from the US Geological Survey, Kansas State University, Michigan State University, Penn State University, the University of Minnesota-Duluth, the University...
This publication is a product from the project, "Predicting Climate Change Threats to Key Estuarine Habitats and Ecosystem Services in the Pacific Northwest".
Abstract: Native freshwater mussels are long-lived, sessile, benthic invertebrates that may be extremely susceptible to elevated water temperatures because of their patchy distribution, limited dispersal and mobility, and larval dependence on fish. Recent research suggests that many species may be living close to their upper thermal limits and that some rivers have seen a shift in species composition to more thermally tolerant mussel species. We tested the hypothesis that elevated water temperatures (20, 25, 30, and 35°C) adversely affected the survival and physiology of juvenile mussels and physiology of adult mussels. In juveniles, the 28-d LT50s ranged from 25.3 to 30.3°C. H eart rate was significantly affected...
Abstract: The predictive power of recruitment models often relies on the identification and quantification of external variables, in addition to stock size. In theory, the identification of climatic, biotic, or demographic influences on reproductive success assists fisheries management by identifying factors that have a direct and reproducible influence on the population dynamics of a target species. More often, models are constructed as one-time studies of a single population whose results are not revisited when further data become available. Here, we present results from stock recruitment models for Alewife Alosa pseudoharengus and Bloater Coregonus hoyi in Lakes Michigan and Huron. The factors that explain variation...
This article is a product from the project "Can Mammals Mediate Climatically-Induced Vegetation Transitions in Alpine Ecosystems of the Western United States?". Abstract: It is very common that only presence data are available in ecological niche modeling. However, most existing methods for evaluating the accuracy of presence–absence (binary) predictions of species require presence–absence data. The aim of this study is to present a new method for accuracy assessment that does not rely on absence data. Two new statistics Fpb and Fcpb were derived based on presence–background data. With generated six virtual species, we used DOMAIN, generalized linear modeling (GLM), and maximum entropy (MAXENT) to produce different...
These publications exemplify the use of the data from this project, " A Land of Flowers on a Latitude of Deserts: Aiding Conservation and Management of Florida’s Biodiversity", by the broader scientific community.
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A Coupled Hydrosphere Atmosphere Research Model was developed that predicted vertical water temperature profiles, ice cover, and precipitation within 40-km grids and lake levels for Lake Michigan between 2058 and 2066. In this data set, daily predicted water temperature profiles are summarized for four regions in Lake Michigan (north: North of 45 degrees 20 minutes N; central: between 43 degrees 30 minutes N and 45 degrees 20 minutes N; south: south of 43 degrees 30 minutes N; south-shallow: only areas less than <40 m bottom depth and south of 43 degrees 30 minutes N). Model output was driven by the Canadian CRCM3 GCM and assumed SRES A2 scenario greenhouse gas concentrations.


map background search result map search result map Science to Inform Future Management of the Nation's Fisheries and Aquatic Habitat Black-throatedsparrowBinaryProbability Water Temperature Profiles from CHARM for Lake Michigan Water Temperature Profiles from CHARM for Lake Michigan Black-throatedsparrowBinaryProbability Science to Inform Future Management of the Nation's Fisheries and Aquatic Habitat