caa a22 4500 463167953 CHVBK 20180406164805.0 cr unu---uuuuu 170326e20070801xx s 000 0 eng 10.1007/s10530-006-9068-7 doi (NATIONALLICENCE)springer-10.1007/s10530-006-9068-7 A synopsis of suggested approaches to address potential competitive interactions between Barred Owls ( Strix varia ) and Spotted Owls ( S. occidentalis ) [Elektronische Daten] [Joseph Buchanan, R. Gutiérrez, Robert Anthony, Tim Cullinan, Lowell Diller, Eric Forsman, Alan Franklin] The conservation of Spotted Owl (Strix occidentalis) populations has been one of the most controversial and visible issues in United States conservation history. Coincident with declines in Spotted Owl populations over the last three decades has been the invasion of Barred Owls (Strix varia) throughout the range of the Northern Spotted Owl (S. o. caurina) and into the range of the California Spotted Owl (S. o. occidentalis). This invasion has confused the reasons behind recent Spotted Owl declines because anecdotal and correlative information strongly suggests that Barred Owls are a new factor influencing the declines. There is great uncertainty about all aspects of the invasion, and this has sparked discussion about appropriate management and research responses regarding the effects of this invasion on Spotted Owls. We present a set of possible responses to address the issue, and we discuss the relative merits of these with regard to their efficacy given the current state of knowledge. We recommend that research specifically aimed at learning more about the interspecific relationships of these two owls throughout the range of sympatry should begin immediately. Approaches that seem unlikely to be useful in the short-term either because they do not facilitate knowledge acquisition, are relatively costly, or would be technically less feasible, should not be considered viable at this time. We believe the consequences of the invasion are potentially dire for the Spotted Owl and that research and management actions, including the use of adaptive management, are required to inform the near- and long-term decision-making process for conservation of Spotted Owls. Springer Science+Business Media, Inc., 2006 Barred Owl nationallicence Review of potential approaches to respond to Barred Owl invasion nationallicence Spotted Owl nationallicence Strix occidentalis nationallicence Strix varia nationallicence Buchanan Joseph Washington Department of Fish and Wildlife, 600 Capitol Way North, 98501, Olympia, WA, USA aut Gutiérrez R. Department of Fisheries, Wildlife and Conservation Biology, University of Minnesota, 200 Hodson Hall, 1880 Folwell Avenue, 55108, St. Paul, MN, USA aut Anthony Robert Department of Fisheries and Wildlife, Oregon State University, 97331, Corvallis, OR, USA aut Cullinan Tim Audubon Washington, 1063 Capitol Way South, Suite 208, 98382, Olympia, WA, USA aut Diller Lowell Green Diamond Resource Company, 900 Riverside Road, 95550, Korbel, CA, USA aut Forsman Eric Forestry Sciences Laboratory, Pacific Northwest Research Station, United States Forest Service, 3200 SW Jefferson Way, 97331, Corvallis, OR, USA aut Franklin Alan USDA/APHIS/WS National Wildlife Research Center, 4101 Laporte Avenue, 80521, Fort Collins, CO, USA aut Biological Invasions Springer Netherlands 9/6(2007-08-01), 679-691 1387-3547 9:6<679 2007 9 10530 https://doi.org/10.1007/s10530-006-9068-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10530-006-9068-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Buchanan Joseph Washington Department of Fish and Wildlife, 600 Capitol Way North, 98501, Olympia, WA, USA aut NATIONALLICENCE 700 1- Gutiérrez R. Department of Fisheries, Wildlife and Conservation Biology, University of Minnesota, 200 Hodson Hall, 1880 Folwell Avenue, 55108, St. Paul, MN, USA aut NATIONALLICENCE 700 1- Anthony Robert Department of Fisheries and Wildlife, Oregon State University, 97331, Corvallis, OR, USA aut NATIONALLICENCE 700 1- Cullinan Tim Audubon Washington, 1063 Capitol Way South, Suite 208, 98382, Olympia, WA, USA aut NATIONALLICENCE 700 1- Diller Lowell Green Diamond Resource Company, 900 Riverside Road, 95550, Korbel, CA, USA aut NATIONALLICENCE 700 1- Forsman Eric Forestry Sciences Laboratory, Pacific Northwest Research Station, United States Forest Service, 3200 SW Jefferson Way, 97331, Corvallis, OR, USA aut NATIONALLICENCE 700 1- Franklin Alan USDA/APHIS/WS National Wildlife Research Center, 4101 Laporte Avenue, 80521, Fort Collins, CO, USA aut NATIONALLICENCE 773 0- Biological Invasions Springer Netherlands 9/6(2007-08-01), 679-691 1387-3547 9:6<679 2007 9 10530 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer