caa a22 4500 445857773 CHVBK 20180317145433.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10592-011-0201-5 doi (NATIONALLICENCE)springer-10.1007/s10592-011-0201-5 Population genetic structure and conservation genetics of threatened Okaloosa darters ( Etheostoma okaloosae ) [Elektronische Daten] [James Austin, Howard Jelks, Bill Tate, Aria Johnson, Frank Jordan] Imperiled Okaloosa darters (Etheostoma okaloosae) are small, benthic fish limited to six streams that flow into three bayous of Choctawhatchee Bay in northwest Florida, USA. We analyzed the complete mitochondrial cytochrome b gene and 10 nuclear microsatellite loci for 255 and 273 Okaloosa darters, respectively. Bayesian clustering analyses and AMOVA reflect congruent population genetic structure in both mitochondrial and microsatellite DNA. This structure reveals historical isolation of Okaloosa darter streams nested within bayous. Most of the six streams appear to have exchanged migrants though they remain genetically distinct. The U.S. Fish and Wildlife Service recently reclassified Okaloosa darters from endangered to threatened status. Our genetic data support the reclassification of Okaloosa darter Evolutionary Significant Units (ESUs) in the larger Tom's, Turkey, and Rocky creeks from endangered to threatened status. However, the three smaller drainages (Mill, Swift, and Turkey Bolton creeks) remain at risk due to their small population sizes and anthropogenic pressures on remaining habitat. Natural resource managers now have the evolutionary information to guide recovery actions within and among drainages throughout the range of the Okaloosa darter. Springer Science+Business Media B.V., 2011 AMOVA nationallicence Bayesian cluster analysis nationallicence Distinct population segments nationallicence Endangered nationallicence Evolutionary significant units nationallicence Phylogeography nationallicence Austin James Wildlife Ecology and Conservation, University of Florida, PO Box 110430, 32611, Gainesville, FL, USA aut Jelks Howard U. S. Geological Survey, Southeast Ecological Science Center, 7920 Northwest 71st Street, 32653, Gainesville, FL, USA aut Tate Bill U. S. Fish and Wildlife Service, Jackson Guard Natural Resources Facility, Eglin Air Force Base, 32578, Niceville, FL, USA aut Johnson Aria Wildlife Ecology and Conservation, University of Florida, PO Box 110430, 32611, Gainesville, FL, USA aut Jordan Frank Department of Biological Sciences, Loyola University New Orleans, 6363 St. Charles Avenue, 70118, New Orleans, LA, USA aut Conservation Genetics Springer Netherlands 12/4(2011-08-01), 981-989 1566-0621 12:4<981 2011 12 10592 https://doi.org/10.1007/s10592-011-0201-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-011-0201-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Austin James Wildlife Ecology and Conservation, University of Florida, PO Box 110430, 32611, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Jelks Howard U. S. Geological Survey, Southeast Ecological Science Center, 7920 Northwest 71st Street, 32653, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Tate Bill U. S. Fish and Wildlife Service, Jackson Guard Natural Resources Facility, Eglin Air Force Base, 32578, Niceville, FL, USA aut NATIONALLICENCE 700 1- Johnson Aria Wildlife Ecology and Conservation, University of Florida, PO Box 110430, 32611, Gainesville, FL, USA aut NATIONALLICENCE 700 1- Jordan Frank Department of Biological Sciences, Loyola University New Orleans, 6363 St. Charles Avenue, 70118, New Orleans, LA, USA aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/4(2011-08-01), 981-989 1566-0621 12:4<981 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer