4/5/2023 0 Comments Genodive fstcryptic species, recent/ongoing diversification and hybridisation. This can pose challenges for conservation, as situations may arise where management of the ‘species’ is inappropriate, e.g. In reality, the natural world is not fixed but is changing, thus species exist on a continuous spectrum that evolves in space and time. From a conservation management perspective it is most often the species that is the unit of consideration, yet species are classified by the human mind as an attempt to make order of the natural world. Biodiversity can be assessed at various hierarchical levels, from the ecosystem all the way down to genetic diversity. The conservation and maintenance of biodiversity is important for the stability and functioning of ecological communities and populations and also provides immeasurable benefits to human society such as ecosystem services and aesthetic value. All other data is available as Supporting Information files.įunding: LKF received funding from Olsson Borghs Stiftelse ( and Carl Tryggers Stiftelese ( and ÖÖ received funding from Vetenskapsrådet ( The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Ĭompeting interests: The authors have declared that no competing interests exist. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.ĭata Availability: Sequence data are available at Genbank, Accession Nos. Received: NovemAccepted: MaPublished: March 31, 2016Ĭopyright: © 2016 Faulks, Östman. PLoS ONE 11(3):Įditor: Arnar Palsson, University of Iceland, ICELAND The ecological and evolutionary consequences of the observed hybridisation are priorities for further research and the conservation of the evolutionary potential of native salmonid species.Ĭitation: Faulks L, Östman Ö (2016) Genetic Diversity and Hybridisation between Native and Introduced Salmonidae Fishes in a Swedish Alpine Lake. There was clear evidence of hybridisation between the native Arctic charr and the introduced brook charr, with 6% of individuals being hybrids, all of which were sampled in tributary streams. Overall genetic structure differed between species, Fst = 0.01, 0.02 and 0.04 in Arctic charr, brown trout and brook charr respectively, and there was differentiation at only a few specific locations. There were indications of elevated inbreeding coefficients in brown trout (G IS = 0.144) and brook charr (G IS = 0.129) although sibling relationships were likely a confounding factor, as a high proportion of siblings were observed in all species within and among sampling locations. The genetic diversity of the three species was similar and sufficiently high from a conservation genetics perspective: corrected total heterozygosity, H’ T = 0.54, 0.66, 0.60 and allelic richness, A R = 4.93, 5.53 and 5.26 for Arctic charr, brown trout and brook charr, respectively. Here we assessed the microsatellite genetic diversity and structure of three salmonid species, two native (Arctic charr, Salvelinus alpinus and brown trout, Salmo trutta) and one introduced (brook charr, Salvelinus fontinalis), from an alpine lake in sub-arctic Sweden, Lake Ånn. Understanding the processes underlying diversification can aid in formulating appropriate conservation management plans that help maintain the evolutionary potential of taxa, particularly under human-induced activities and climate change.
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