caa a22 4500 445857722 CHVBK 20180317145433.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s10592-011-0210-4 doi (NATIONALLICENCE)springer-10.1007/s10592-011-0210-4 Population genetic structure of the endangered Eastern Bristlebird, Dasyornis brachypterus [Elektronische Daten] ; implications for conservation [David Roberts, Jack Baker, Cécile Perrin] For species that are habitat specialists or sedentary, population fragmentation may lead to genetic divergence between populations and reduced genetic diversity within populations, with frequent inbreeding. Hundreds of kilometres separate three geographical regions in which small populations of the endangered Eastern Bristlebird, Dasyornis brachypterus, a small, ground-dwelling passerine that occurs in fire-prone bushland in eastern Australia, are currently found. Here, we use mitochondrial and microsatellite DNA markers to: (i) assess the sub-specific taxonomy designated to northern range-edge, and central and southern range-edge D. brachypterus, respectively, and (ii) assess levels of standing genetic variation and the degree of genetic subdivision of remnant populations. The phylogenetic relationship among mtDNA haplotypes and their spatial distribution did not support the recognised subspecies boundaries. Populations in different regions were highly genetically differentiated, but in addition, the two largest, neighboring populations (located within the central region and separated by ~50km) were moderately differentiated, and thus are likely closed to migration (microsatellites, F ST=0.06; mtDNA, F ST=0.12, Θ ST=0.08). Birds within these two populations were genotypically diverse and apparently randomly mating. A long-term plan for the conservation of D. brachypterus's genetic diversity should consider individual populations as separate management units. Moreover, managers should avoid actively mixing birds from different populations or regions, to conserve the genetic integrity of local populations and avoid outbreeding depression, should further translocations be used as a recovery tool for this species. Springer Science+Business Media B.V., 2011 Gene flow nationallicence Genetic diversity nationallicence Microsatellite and mitochondrial DNA nationallicence Fire-sensitive nationallicence Habitat modification nationallicence Passerine nationallicence Threatened species nationallicence Roberts David Institute for Conservation Biology and Environmental Management, School of Biological Sciences, University of Wollongong, 2522, Wollongong, NSW, Australia aut Baker Jack Institute for Conservation Biology and Environmental Management, School of Biological Sciences, University of Wollongong, 2522, Wollongong, NSW, Australia aut Perrin Cécile Institute for Conservation Biology and Environmental Management, School of Biological Sciences, University of Wollongong, 2522, Wollongong, NSW, Australia aut Conservation Genetics Springer Netherlands 12/4(2011-08-01), 1075-1085 1566-0621 12:4<1075 2011 12 10592 https://doi.org/10.1007/s10592-011-0210-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-011-0210-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Roberts David Institute for Conservation Biology and Environmental Management, School of Biological Sciences, University of Wollongong, 2522, Wollongong, NSW, Australia aut NATIONALLICENCE 700 1- Baker Jack Institute for Conservation Biology and Environmental Management, School of Biological Sciences, University of Wollongong, 2522, Wollongong, NSW, Australia aut NATIONALLICENCE 700 1- Perrin Cécile Institute for Conservation Biology and Environmental Management, School of Biological Sciences, University of Wollongong, 2522, Wollongong, NSW, Australia aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/4(2011-08-01), 1075-1085 1566-0621 12:4<1075 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer