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  • Söderquist, PärSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Högskolan Kristianstad,Forskningsmiljön Man & Biosphere Health (MABH),Avdelningen för Naturvetenskap,Institutionen för vilt, fisk och miljö,Department of Wildlife, Fish and Environmental Studies,Kristianstad University (author)

Admixture between released and wild game birds: a changing genetic landscape in European mallards (Anas platyrhynchos)

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • Springer Verlag (Germany),2017
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:hkr-17669
  • urn:nbn:se:hkr:diva-17669urn
  • https://doi.org/10.1007/s10344-017-1156-8DOI
  • http://www.slu.se/subweb/bibliotek/slupub/publ/?publ_id=93385URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • gratis
  • Disruption of naturally evolved spatial patterns of genetic variation and local adaptations is a growing concern in wildlife management and conservation. During the last decade, releases of native taxa with potentially non-native genotypes have received increased attention. This has mostly concerned conservation programs, but releases are also widely carried out to boost harvest opportunities. The mallard, Anas platyrhynchos, is one of few terrestrial migratory vertebrates subjected to large-scale releases for hunting purposes. It is the most numerous and widespread duck in the world, yet each year more than three million farmed mallard ducklings are released into the wild in the European Union alone to increase the harvestable population. This study aimed to determine the genetic effects of such large-scale releases of a native species, specifically if wild and released farmed mallards differ genetically among subpopulations in Europe, if there are signs of admixture between the two groups, if the genetic structure of the wild mallard population has changed since large-scale releases began in the 1970s, and if the current data matches global patterns across the Northern hemisphere. We used Bayesian clustering (Structure software) and Discriminant Analysis of Principal Components (DAPC) to analyze the genetic structure of historical and present-day wild (n = 171 and n = 209, respectively) as well as farmed (n = 211) mallards from six European countries as inferred by 360 single-nucleotide polymorphisms (SNPs). Both methods showed a clear genetic differentiation between wild and farmed mallards. Admixed individuals were found in the present-day wild population, implicating introgression of farmed genotypes into wild mallards despite low survival among released farmed mallards. Such cryptic introgression would alter the genetic composition of wild populations and may have unknown long-term consequences for conservation.

Subject headings and genre

  • Cryptic introgression; Hand-reared; Hybridization; Restocking; SNP; Wildlife management

Added entries (persons, corporate bodies, meetings, titles ...)

  • Elmberg, Johan,1960-Högskolan Kristianstad,Avdelningen för Naturvetenskap,Forskningsmiljön Man & Biosphere Health (MABH),Kristianstad University(Swepub:hkr)elj (author)
  • Gunnarsson, GunnarHögskolan Kristianstad,Avdelningen för Naturvetenskap,Forskningsmiljön Man & Biosphere Health (MABH),Kristianstad University(Swepub:hkr)gug (author)
  • Thulin, C-GUniversity of Agricultural Sciences (author)
  • Champagnon, JFrankrike (author)
  • Guillemain, MFrankrike (author)
  • Kreisinger, JTjeckien (author)
  • Prins, H THolland (author)
  • Crooijmans, R. P. M. A.Holland (author)
  • R. H. S., Kraus (author)
  • Thulin, Carl-GustafSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för vilt, fisk och miljö,Department of Wildlife, Fish and Environmental Studies(Swepub:slu)50327 (author)
  • Högskolan KristianstadForskningsmiljön Man & Biosphere Health (MABH) (creator_code:org_t)
  • Sveriges lantbruksuniversitet

Related titles

  • In:European Biophysics Journal: Springer Verlag (Germany)630175-75711432-1017
  • In:European Journal of Wildlife Research: Springer Verlag (Germany)631612-46421439-0574

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