A model of sea-levels in the Irish and Celtic seas during the end-Pleistocene to Holocene transition

Wingfield, R.T.R.

doi:10.1144/gsl.sp.1995.096.01.15

Cited by 36 publications

(36 citation statements)

References 43 publications

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“…Owing to the depth of genetic divergence between Irish and Scottish mountain hare samples, recolonisation via a landbridge from Scotland to northerly Ireland (Wingfield, 1995;Lambeck, 1996) is not supported by our observations. A late-glacial southerly landbridge across Cornwall to Ireland from southern France is possibly more consistent with our data.…”

Section: Genetics and Colonisation History Of Mountain Hares In Irelandcontrasting

confidence: 84%

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Spatial patterns of genetic diversity across European subspecies of the mountain hare, Lepus timidus L.

2006

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Fossil evidence shows that populations of species that currently inhabit arctic and boreal regions were not isolated in refugia during glacial periods, but instead maintained populations across large areas of central Europe. These species commonly display little reduction in genetic diversity in northern areas of their range, in contrast to many temperate species. The mountain hare currently inhabits both temperate and arctic-boreal regions. We used nuclear microsatellite and mtDNA sequence data to examine population structure and alternate phylogeographic hypotheses for the mountain hare, that is, temperate type (lower genetic diversity in northern areas) and arctic-boreal type (high northern genetic diversity). Both data sets revealed concordant patterns. Highest allelic richness, expected heterozygosity and mtDNA haplotype diversity were identified in the most northerly subspecies, indicating that this species more closely maps to phylogeographic patterns observed in arctic-boreal rather than temperate species. With regard to population structure, the Alpine and Fennoscandian subspecies were most genetically similar (F ST E0.1). These subspecies also clustered together on the mtDNA tree and were assigned with highest likelihood to a common Bayesian cluster. This is consistent with fossil evidence for intermediate populations in the central European plain, persisting well into the postglacial period. In contrast, the geographically close Scottish and Irish populations occupied separate Bayesian clusters, distinct clades on the mtDNA maximum likelihood tree and were genetically divergent from each other (F ST 40.4) indicating the influence of genetic drift, long isolation (possibly dating from the late glacial era) and/ or separate postglacial colonisation routes.

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Section: Genetics and Colonisation History Of Mountain Hares In Irelandcontrasting

confidence: 84%

“…Both northerly (from Scotland) and southerly (from France across Cornwall) land bridges have been suggested at various dates (Wingfield, 1995;Lambeck and Purcell, 2001). Genetic data has the potential to inform this debate.…”

Section: Genetics and Colonisation History Of Mountain Hares In Irelandmentioning

confidence: 99%

Spatial patterns of genetic diversity across European subspecies of the mountain hare, Lepus timidus L.

2006

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“…In Wingfield's (1995) And.1 Figure 3. Unrooted minimum-parsimony network of all haplotypes within the Andorran-Irish lineage based on the single most parsimonious tree (see table 1 for geographical origins of haplotypes).…”

Section: Discussionmentioning

confidence: 99%

How did pygmy shrews colonize Ireland? Clues from a phylogenetic analysis of mitochondrial cytochromebsequences

Mascheretti

Rogatcheva

Gündüz

et al. 2003

Proc. R. Soc. Lond. B

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There is a long-standing debate as to how Ireland attained its present fauna; we help to inform this debate with a molecular study of one species. A 1110 base pair fragment of the mitochondrial cytochrome b gene was sequenced in 74 specimens of the pygmy shrew, Sorex minutus, collected from throughout its western Palaearctic range. Phylogenetic analysis of these sequences revealed several well-supported lineages. Most of the 65 haplotypes belonged to a northern lineage, which ranged from Britain in the west to Lake Baikal in the east. The other lineages were largely limited to Iberia, Italy and the Balkans. One exception, however, was a lineage found in both Ireland and Andorra. This affinity, and the large difference between the mitochondrial sequences of Irish and British individuals, suggest that pygmy shrews did not colonize Ireland via a land connection from Britain, as has been previously supposed, but instead were introduced by boat from southwest continental Europe. All the Irish pygmy shrews analysed were identical or very similar in cytochrome b sequence, suggesting an extreme founding event.

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“…The origins of the terrestrial fauna and flora of western Europe in general and Ireland in particular are the subject of prolonged debate [1][2][3][4]. Similar to the rest of northern Europe, most of Ireland was covered by ice during the last glacial maximum (LGM) some 20 000 years BP; thus, all endemic Irish species are thought to be descendants from colonists arriving post-glacially from refugia in southern Europe.…”

Section: Introductionmentioning

confidence: 99%

New insights on postglacial colonization in western Europe: the phylogeography of the Leisler's bat (Nyctalus leisleri)

et al. 2015

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Despite recent advances in the understanding of the interplay between a dynamic physical environment and phylogeography in Europe, the origins of contemporary Irish biota remain uncertain. Current thinking is that Ireland was colonized post-glacially from southern European refugia, following the end of the last glacial maximum (LGM), some 20 000 years BP. The Leisler's bat (Nyctalus leisleri), one of the few native Irish mammal species, is widely distributed throughout Europe but, with the exception of Ireland, is generally rare and considered vulnerable. We investigate the origins and phylogeographic relationships of Irish populations in relation to those across Europe, including the closely related species N. azoreum. We use a combination of approaches, including mitochondrial and nuclear DNA markers, in addition to approximate Bayesian computation and palaeo-climatic species distribution modelling. Molecular analyses revealed two distinct and diverse European mitochondrial DNA lineages, which probably diverged in separate glacial refugia. A western lineage, restricted to Ireland, Britain and the Azores, comprises Irish and British N. leisleri and N. azoreum specimens; an eastern lineage is distributed throughout mainland Europe. Palaeo-climatic projections indicate suitable habitats during the LGM, including known glacial refugia, in addition to potential novel cryptic refugia along the western fringe of Europe. These results may be applicable to populations of many species.

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A model of sea-levels in the Irish and Celtic seas during the end-Pleistocene to Holocene transition

Cited by 36 publications

References 43 publications

Spatial patterns of genetic diversity across European subspecies of the mountain hare, Lepus timidus L.

Spatial patterns of genetic diversity across European subspecies of the mountain hare, Lepus timidus L.

How did pygmy shrews colonize Ireland? Clues from a phylogenetic analysis of mitochondrial cytochromebsequences

New insights on postglacial colonization in western Europe: the phylogeography of the Leisler's bat (Nyctalus leisleri)

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