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Fleming 1992 US Government.pdf
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Fleming 1992.pdf
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Fleming et al 1993 Research.pdf
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Fleming et al 1993.pdf
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Fleming et al 1995.pdf
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Flexing Their Mussels - Restoration of the Cheoah River
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The N.C. Wildlife Resources Commission's (NCWRC) mussel breeding program helps augment some declining populations and save others from extinction. There are about 17 places in the United States that grow freshwater mussels, but many of those are for research purposes. The Marion facility has held 17 of the approximately 50 species in North Carolina and has propagated seven species to bolster local populations throughout the state. Biologists Rachel Hoch, David Deaton and Peter Lamb are leading the effort in Marion with the help of the NCWRC's Aquatic Wildlife Diversity Program staff.
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Floating the Conasauga or Just Another Day at the Office
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No, all of our days are not this nice, but this one was a pretty good one! A beautiful July day, not too hot, clear blue sky and pretty good water conditions! The Conasauga is one of our favorite rivers to work! It originates in North Georgia, flows north into Tennessee, then flirts with the state line until finally turning back south into Georgia. Video by Conservation Fisheries Inc.
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Flock Ubelaker SMU.pdf
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Florida Department of Agriculture and Consumer Services
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The Florida Department of Agriculture and Consumer Services (FDACS) supports and promotes Florida agriculture, protects the environment, safeguards consumers, and ensures the safety and wholesomeness of food. Our programs and activities are so varied and extensive, they touch the life of just about every Floridian.
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Flow regime, temperature, and biotic interactions drive differential declines of trout species under climate change
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Broad-scale studies of climate change effects on freshwater species have focused mainly on temperature, ignoring critical drivers such as flow regime and biotic interactions. We use downscaled outputs from general circulation models coupled with a hydrologic model to forecast the effects of altered flows and increased temperatures on four interacting species of trout across the interior western United States (1.01 million km2), based on empirical statistical models built from fish surveys at 9,890 sites. Projections under the 2080s A1B emissions scenario forecast a mean 47% decline in total suitable habitat for all trout, a group of fishes of major socioeconomic and ecological significance. We project that native cutthroat trout Oncorhynchus clarkii, already excluded from much of its potential range by nonnative species, will lose a further 58% of habitat due to an increase in temper- atures beyond the species’ physiological optima and continued negative biotic interactions. Habitat for nonnative brook trout Salvelinus fontinalis and brown trout Salmo trutta is predicted to decline by 77% and 48%, respectively, driven by increases in temperature and winter flood frequency caused by warmer, rain- ier winters. Habitat for rainbow trout, Oncorhynchus mykiss, is projected to decline the least (35%) because negative temperature effects are partly offset by flow regime shifts that benefit the species. These results illustrate how drivers other than tempera- ture influence species response to climate change. Despite some uncertainty, large declines in trout habitat are likely, but our find- ings point to opportunities for strategic targeting of mitigation efforts to appropriate stressors and locations.
global change | hydrology | invasive species | niche model | distribution modeling
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