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Conceptualizing Ecological Responses to Dam Removal: If You Remove It, What's to Come?
Bellmore, J Ryan; Pess, George R; Duda, Jeffrey J; O'Connor, Jim E; East, Amy E; Foley, Melissa M; Wilcox, Andrew C; Major, Jon J; Shafroth, Patrick B; Morley, Sarah A; Magirl, Christopher S; Anderson, Chauncey W; Evans, James E; Torgersen, Christian E; Craig, Laura S.
Afiliação
  • Bellmore JR; US Department of Agriculture, Forest Service, Pacific Northwest Research Station, in Juneau, Alaska.
  • Pess GR; NOAA Fisheries' Northwest Fisheries Science Center, in Seattle, Washington.
  • Duda JJ; US Geological Survey's Western Fisheries Research Center, also in Seattle.
  • O'Connor JE; US Geological Survey's Geology, Minerals, Energy, and Geophysics Science Center, in Portland, Oregon.
  • East AE; US Geological Survey's Pacific Coastal and Marine Science Center, in Santa Cruz, California.
  • Foley MM; US Geological Survey's Pacific Coastal and Marine Science Center, in Santa Cruz, California.
  • Wilcox AC; University of Montana's Department of Geosciences, in Missoula.
  • Major JJ; US Geological Survey's Cascades Volcano Observatory, in Vancouver, Washington.
  • Shafroth PB; US Geological Survey's Fort Collins Science Center, in Fort Collins, Colorado.
  • Morley SA; NOAA Fisheries' Northwest Fisheries Science Center, in Seattle, Washington.
  • Magirl CS; Studies chief at the US Geological Survey's Arizona Water Science Center, in Tucson, Arizona.
  • Anderson CW; US Geological Survey's Oregon Water Science Center, in Portland, Oregon.
  • Evans JE; Department of Geology at Bowling Green State University, in Bowling Green, Ohio.
  • Torgersen CE; US Geological Survey's Forest and Rangeland Ecosystem Science Center, Cascadia Field Station, at the University of Washington, in Seattle, Washington.
  • Craig LS; American Rivers, in Washington DC.
Bioscience ; 69(1): 26-39, 2019 Jan 01.
Article em En | MEDLINE | ID: mdl-30647476
One of the desired outcomes of dam decommissioning and removal is the recovery of aquatic and riparian ecosystems. To investigate this common objective, we synthesized information from empirical studies and ecological theory into conceptual models that depict key physical and biological links driving ecological responses to removing dams. We define models for three distinct spatial domains: upstream of the former reservoir, within the reservoir, and downstream of the removed dam. Emerging from these models are response trajectories that clarify potential pathways of ecological transitions in each domain. We illustrate that the responses are controlled by multiple causal pathways and feedback loops among physical and biological components of the ecosystem, creating recovery trajectories that are dynamic and nonlinear. In most cases, short-term effects are typically followed by longer-term responses that bring ecosystems to new and frequently predictable ecological condition, which may or may not be similar to what existed prior to impoundment.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Bioscience Ano de publicação: 2019 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Prognostic_studies Idioma: En Revista: Bioscience Ano de publicação: 2019 Tipo de documento: Article