Show simple item record

dc.contributor.authorBurnett, Hamish Andrew
dc.contributor.authorBieker, Vanessa Carina
dc.contributor.authorLe Moullec, Mathilde
dc.contributor.authorPeeters, Bart
dc.contributor.authorRosvold, Jørgen
dc.contributor.authorPedersen, Åshild Ønvik
dc.contributor.authorDalén, Love
dc.contributor.authorLoe, Leif Egil
dc.contributor.authorJensen, Henrik
dc.contributor.authorHansen, Brage Bremset
dc.contributor.authorMartin, Michael David
dc.coverage.spatialSvalbard, Norwayen_US
dc.identifier.citationEvolutionary Applications. 2023, 16 (9), 1531-1548.en_US
dc.description.abstractAnthropogenic reintroduction can supplement natural recolonization in reestablishing a species' distribution and abundance. However, both reintroductions and recolonizations can give rise to founder effects that reduce genetic diversity and increase inbreeding, potentially causing the accumulation of genetic load and reduced fitness. Most current populations of the endemic high-arctic Svalbard reindeer (Rangifer tarandus platyrhynchus) originate from recent reintroductions or recolonizations following regional extirpations due to past overharvesting. We investigated and compared the genomic consequences of these two paths to reestablishment using whole-genome shotgun sequencing of 100 Svalbard reindeer across their range. We found little admixture between reintroduced and natural populations. Two reintroduced populations, each founded by 12 individuals around four decades (i.e. 8 reindeer generations) ago, formed two distinct genetic clusters. Compared to the source population, these populations showed only small decreases in genome-wide heterozygosity and increases in inbreeding and lengths of runs of homozygosity. In contrast, the two naturally recolonized populations without admixture possessed much lower heterozygosity, higher inbreeding and longer runs of homozygosity, possibly caused by serial population founder effects and/or fewer or more genetically related founders than in the reintroduction events. Naturally recolonized populations can thus be more vulnerable to the accumulation of genetic load than reintroduced populations. This suggests that in some organisms even small-scale reintroduction programs based on genetically diverse source populations can be more effective than natural recolonization in establishing genetically diverse populations. These findings warrant particular attention in the conservation and management of populations and species threatened by habitat fragmentation and loss.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectconservation geneticsen_US
dc.titleContrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeeren_US
dc.title.alternativeContrasting genomic consequences of anthropogenic reintroduction and natural recolonization in high-arctic wild reindeeren_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holder© 2023 The Authorsen_US
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.source.journalEvolutionary Applicationsen_US
dc.relation.projectNorges forskningsråd: 325589en_US
dc.relation.projectNorges forskningsråd: 295908en_US
dc.relation.projectNorges forskningsråd: 276080en_US
dc.relation.projectNorges forskningsråd: 223257en_US
dc.relation.projectSvalbards miljøvernfond: 14/137en_US
dc.relation.projectSvalbards miljøvernfond: 15/105en_US
dc.relation.projectNorges forskningsråd: 302619en_US
dc.relation.projectSigma2: NN8052Ken_US
dc.relation.projectSigma2: NS8052Ken_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal