The colonization history of British water vole (<i>Arvicola amphibius</i>(Linnaeus, 1758)): origins and development of the Celtic fringe

Brace, Selina; Ruddy, Mark; Miller, Rebecca; Schreve, Danielle C.; Stewart, John R.; Barnes, Ian

doi:10.1098/rspb.2016.0130

Cited by 28 publications

(29 citation statements)

References 34 publications

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“…However, the mid‐Holocene climate models raise the question if not a B. spinosus genetic footprint would also be found in other areas with past favourable climatic conditions including Cornwall, the coastal zone of Wales and parts of Scotland. Such observations might be aligned with Oceanic climate preferences and with the "Celtic fringe" pattern of intraspecific lineage replacement that has been postulated for several small mammals (Brace et al, ; Kotlík et al, ; Kotlík, Marková, Konczal, Babik, & Searle, ; Piertney et al, ; Searle et al, ). Of particular interest in this respect are the records for peripheral and isolated toad populations on Lundy Island and the Isles of Scilly and the possible presence of toads on the Isle of Man (NBNatlas, ).…”

Section: Discussionsupporting

confidence: 62%

An amphibian species pushed out of Britain by a moving hybrid zone

Arntzen

2019

Molecular Ecology

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Classical theory states that hybrid zones will be stable in troughs of low population density where dispersal is hampered. Yet, evidence for moving hybrid zones is mounting. One possible reason that moving zones have been underappreciated is that they may drive themselves into oblivion and with just the superseding species remaining, morphological and genetic signals of past species replacement may be difficult to appreciate. Using genetic data (32 diagnostic single nucleotide polymorphisms) from a clinal hybrid zone of the common toad (Bufo bufo) and the spined toad (Bufo spinosus) in France for comparison, alleles of the latter species were documented in common toads in the south of Great Britain, at frequencies in excess of 10%. Because long distance dispersal across the Channel is unlikely, the conclusion reached was that the continental toad hybrid zone which previously extended into Britain, moved southwards and extirpated B. spinosus. Species distribution models for the mid‐Holocene and the present support that climate has locally changed in favour of B. bufo. The system bears resemblance with the demise of Homo neanderthalensis and the rise of Homo sapiens and provides an example that some paleoanthropologists demanded in support of a hominin “leaky replacement” scenario. The toad example is informative just because surviving pure B. spinosus and an extant slowly moving interspecific hybrid zone are available for comparison.

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Section: Discussionsupporting

confidence: 62%

An amphibian species pushed out of Britain by a moving hybrid zone

Arntzen

2019

Molecular Ecology

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“…As such, for each glaciation that occurred, a substantial proportion of each species' lineage was lost, and with that its genetic heritage, complicating the interpretation of colonization patterns. The replacement of one phylogroup with another in line with climate oscillations has also been observed (Brace et al, 2012(Brace et al, , 2016Martínková et al, 2013;Palkopoulou et al, 2016;Searle et al, 2009) indicating that presentday genetic diversity alone can be insufficient to explain historical patterns (Hofreiter & Stewart, 2009;Searle et al, 2009). 2011;Stewart et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Challenging the European southern refugium hypothesis: Species‐specific structures versus general patterns of genetic diversity and differentiation among small mammals

Pedreschi

García-Rodríguez

Yannic

et al. 2018

Global Ecol Biogeogr

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Aim In this study, we conduct a quantitative meta‐analysis to investigate broad patterns of genetic variation throughout large geographical regions in order to elucidate concordant geographical patterns across species and identify common historical processes to better inform the “cryptic refugia” versus the traditional “southern refugia” hypothesis debate. Location Europe. Time period Late Pleistocene to present day. Major taxa studied Small mammals (Rodentia, Eulipotyphla). Methods A meta‐analysis was performed on large‐scale patterns of genetic diversity for 19 species from 59 papers. For each species, haplotype and nucleotide diversity were calculated using the mitochondrial D‐loop and compared to the species’ range. Results No consistent patterns were observed between mitochondrial DNA (mtDNA) diversity indices (nucleotide and haplotype diversity) and any of the indicators of distribution examined [latitude and longitude (max, min, centre, range)]. The patterns of genetic diversity observed in all the 19 species studied appear to be species‐specific. Main conclusions In contrast to the traditional southern refugial hypotheses, we found no evidence for a consistent south–north post‐glacial expansion. Instead individual species appear to respond to climate oscillations in niche‐specific ways. This individual nature of each species’ phylogeographical history indicates a complex web of post‐glacial recolonization dynamics across Europe.

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“…Much of high-latitude Europe was uninhabitable for temperate species in the late Pleistocene and the current populations in those regions were thus established at the Pleistocene-Holocene transition [1,2]. It is becoming clear, however, that the original view of postglacial colonization as southern populations merely expanding their ranges into unoccupied northern territories [3] is overly simplistic, as several reported examples of local genetic turnovers suggest that colonization of some high-latitude areas involved input from different source populations at different times, possibly coupled with competition and selection [4,5].…”

Section: Introductionmentioning

confidence: 99%

Genomics of end-Pleistocene population replacement in a small mammal

et al. 2018

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Current species distributions at high latitudes are the product of expansion from glacial refugia into previously uninhabitable areas at the end of the last glaciation. The traditional view of postglacial colonization is that southern populations expanded their ranges into unoccupied northern territories. Recent findings on mitochondrial DNA (mtDNA) of British small mammals have challenged this simple colonization scenario by demonstrating a more complex genetic turnover in Britain during the Pleistocene-Holocene transition where one mtDNA clade of each species was replaced by another mtDNA clade of the same species. Here, we provide evidence from one of those small mammals, the bank vole (), that the replacement was genome-wide. Using more than 10 000 autosomal SNPs we found that similar to mtDNA, bank vole genomes in Britain form two (north and south) clusters which admix. Therefore, the genome of the original postglacial colonists (the northern cluster) was probably replaced by another wave of migration from a different continental European population (the southern cluster), and we gained support for this by modelling with approximate Bayesian computation. This finding emphasizes the importance of analysis of genome-wide diversity within species under changing climate in creating opportunities for sophisticated testing of population history scenarios.

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The colonization history of British water vole (Arvicola amphibius(Linnaeus, 1758)): origins and development of the Celtic fringe

Cited by 28 publications

References 34 publications

An amphibian species pushed out of Britain by a moving hybrid zone

An amphibian species pushed out of Britain by a moving hybrid zone

Challenging the European southern refugium hypothesis: Species‐specific structures versus general patterns of genetic diversity and differentiation among small mammals

Genomics of end-Pleistocene population replacement in a small mammal

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