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Climate Change: Challenge of Invasive Species

Climate Change: Challenge of Invasive Species. Pam Fuller Florida Integrated Science Center. U.S. Department of the Interior U.S. Geological Survey. Changes in Habitat Suitability. Water temperature, depth, velocity, and timing Intensity and timing of hydrologic and fire regimes

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Climate Change: Challenge of Invasive Species

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  1. Climate Change: Challenge of Invasive Species Pam Fuller Florida Integrated Science Center U.S. Department of the Interior U.S. Geological Survey

  2. Changes in Habitat Suitability • Water temperature, depth, velocity, and timing • Intensity and timing of hydrologic and fire regimes • Physical, chemical, and biological components of habitat • Advantage to invasive species: many are habitat generalists

  3. Response of Plants and Animals • Climate change will shift • Where species are located: range shifts • Timing of biological events: phenology • Biotic interactions: predation and competition

  4. Climate Change and Invasive Species • Climate change alters • Means of transport and introduction • Establishment of additional species • Impact of existing invasive species • Distribution of existing invasive species • Effectiveness of control strategies (modified from Hellmann et al. 2007)

  5. Nonnative Diseases & Pathogens: Ichthyophonus Jim Winton, Western Fisheries Research Center • Protozoan parasite • Yukon chinook salmon

  6. Prevalence of Ichthyophonus in the Yukon River System

  7. Purple Loosestrife and Climate Change • Study comparing growth of worldwide ecotypes • Found in all 50 states • Different habitat here • Stems are shorter toward northern range limit • Purple loosestrife is likely to spread northward with climate change, too • dry for southern expansion Beth Middelton, National Wetlands Research Center  light gap Northernmost limit in North America, Amos, northern Quebec Purple loosestrife grows in gaps of white poplar forest in Turkey

  8. USGS Database Resources Pam Fuller, Florida Integrated Science Center

  9. Predicting Range Shifts Kudzu Catherine Jarnevich, Fort Collins Science Center Current distribution with future habitat

  10. Conclusions • Prevention, detecting, monitoring, and controlling invasive species is a • resource-intensive management endeavor • Complicated by uncertainties regarding climate change • Understanding and working to minimize these uncertainties will • become increasingly important with further environmental stressors • Baseline information on species distribution is critical to future • management success • Modeling efforts to predict future scenarios will become increasingly • important to resource managers • USGS will continue to work with partners to maintain and improve databases and provide research to help managers make more informed decisions

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