Some like it cold: distribution, ecology and phylogeny of Arenaria bernensis Favarger (Caryophyllaceae) from the western Prealps in Switzerland

Berthouzoz, Marjorie; Maendly, Simon; Bétrisey, Sébastien; Mangili, Sofia; Prunier, Patrice; Lexer, Christian; Kozlowski, Gregor

doi:10.1007/s00035-013-0116-5

Cited by 11 publications

(21 citation statements)

References 18 publications

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“…The area certainly played a major role as early source of postglacial recolonizers towards the central Alps (Parisod 2008), and several species such as Biscutella laevigata or Eryngium alpinum present genetically diversified and differentiated populations across the Western Prealps (Naciri and Gaudeul 2007;Parisod and Besnard 2007). The area appears as a major hybrid zone for lineages of species such as Arabis alpina (Rogivue et al 2018;Thiel-Egenter et al 2011) and, consistent with the hypothesis of secondary contact among lineages, the narrow endemic of the Western Prealps Arenaria bernensis was demonstrated to be of allopolyploid origin (Berthouzoz et al 2013). It calls for additional case studies on processes at the origin of endemic species in the Western Prealps to shed light on their role as a museum vs cradle of biodiversity (Gerber et al 2010).…”

Section: Endemic Species Of the Western Prealpssupporting

confidence: 54%

“…The Western Prealps (i.e., the area covering North-Western calcareous periphery of central Alps, from Haute-Savoie in France to Lake of Thun in Switzerland) form a relatively small but well-defined geological and biogeographical unit (Gilomen 1941;Caron 1973). They are part of the external calcareous Alps extending from Isère in France to Lower Austria (Berthouzoz et al 2013), and represent the intersection between the major LGM refugia at both extremities of the Alps (Gerber et al 2010;Parisod 2008;Thiel-Egenter et al 2011). Currently dominated by subalpine vegetation, those calcareous mountains show several alpine species with fragmented distribution on mountain tops (Gerber et al 2010).…”

Section: Endemic Species Of the Western Prealpsmentioning

confidence: 99%

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Genetic structure of the endemic Papaver occidentale indicates survival and immigration in the Western Prealps

et al. 2020

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Climatic oscillations of the Quaternary rapidly compelled plant species to shift their geographical range. How alpine plant species responded to climate change, however, remains elusive and remnants of the cold-adapted flora that currently strive in restricted ranges as small, isolated populations have been particularly overlooked. To address the evolutionary history of such a ‘glacial relict’, we here sampled and genotyped all known native populations of a narrow endemic species from the northwestern Alps, Papaver occidentale, as well as closely related taxa with double digest restriction-site Associated DNA (ddRAD) sequencing. Spatial patterns of genetic variation across populations coupled with insights from climatic niche modelling through time address underpinings of the long-term persistence of the species in face of climate changes. Evidence from population genetics and ecological modelling indicates that P. occidentale likely persisted through the last glacial maximum outside of the Western Prealps and that a major lineage recolonized the area from lower elevation, external regions. Differentiated lineages at the Northern margins of the species distribution range highlight highly divergent and geographically restricted populations that include considerable share of private markers and may indicate local glacial survival in isolated conditions. Our data thus imply that processes having shaped intraspecific spatial genetic structure within the Alps can be complex and lead to mosaic of populations with a mixed-history of local survival and immigration. A better understanding of spatio-temporal aspects of range contraction–expansion is crucial to shed light on processes underlying the evolution of remnant populations of such endemic species and set conservation priorities considering current climate changes.

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Section: Endemic Species Of the Western Prealpssupporting

confidence: 54%

Section: Endemic Species Of the Western Prealpsmentioning

confidence: 99%

Genetic structure of the endemic Papaver occidentale indicates survival and immigration in the Western Prealps

et al. 2020

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“…These remnants were left behind during past range shifts and can persist today only in enclaves with suitable environmental conditions in areas with inhospitable regional climates [6]. The Alps, along with the neighboring mountain ranges, played an important role in forming the biogeographical patterns in Europe and acted as a refugium for many taxa throughout several ice age cycles [7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Climate Change and Alpine Screes: No Future for Glacial Relict <em>Papaver occidentale</em> (Papaveraceae) in Western Prealps

Fragnière¹,

Pittet²,

Clément³

et al. 2020

Preprint

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Glacial relicts, especially those with very narrow habitat requirements, are particularly affected by global warming and thus good models for studying the future biodiversity patterns of the Alps. We have used as a model taxon Papaver occidentale, a glacial relict endemic to the Western Prealps, belonging to the alpine poppy complex (P. alpinum aggr.). All known localities were visited, each population was georeferenced and the number of individuals was estimated. Species Distribution Modelling (SDM) was used to evaluate the present and future potential distribution range and habitat suitability, taking into account the specificity of its habitat (calcareous screes). According to our study, there are globally 19 natural populations of P. occidentale. The total number of individuals was estimated at 30756 (with 72% of all individuals in canton of Bern). The taxon is a highly specialized alpine plant growing preferentially between 1900 and 2100 m a.s.l. on north facing screes. Predictions for the end of the 21st century indicate that suitable area will significantly decrease, for both the entire studied area (0-30% remaining) and sites nearby current P. occidentale populations (0-17% remaining). Under the most severe scenario, the species risks complete extinction. The long-term in situ conservation of P. occidentale, and all other taxa of the P. alpinum complex, is unlikely to be achieved without slowing global climate change. More generally, our fine-scale study shows that local environmental buffering of large-scale climate change in high-mountain flora may be very limited in specialised taxa of such patchy environments as screes.

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“…In the distant past and during more recent geological periods, complex biogeographical and evolutionary processes resulted in an extraordinarily high number of endemic alpine taxa (Berthouzoz et al 2013). Five hundred and one endemic taxa have been described in the Alps, comprising ca.…”

Section: Introductionmentioning

confidence: 99%

“…The most emblematic species are the narrow endemics. However, only a few of them have been objects of intensive ecological and/or genetic studies (Berthouzoz et al 2013). Hladnikia pastinacifolia Rchb.…”

Section: Introductionmentioning

confidence: 99%

Micropropagation of the Narrow Endemic Hladnikia pastinacifolia (Apiaceae)

Ambrožič-Dolinšek¹,

Ciringer²,

Kaligarič³

2016

Acta Botanica Croatica

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-The monotypic Hladnikia pastinacifolia Rchb. is a narrow endemic species, with an extremely small distribution area in Slovenia, prone to any kind of threat that could lead to species extinction. Tissue culture techniques are proposed as a conservation measure for rapid propagation and ex-situ conservation. Tissue culture was initiated from seeds and juvenile plants obtained from natural sites on a solid Murashige and Skoog (MS) medium, with and without growth regulators. We tested various combinations and concentrations of growth regulators, and the best proliferation of axillary shoots, on average 14, was obtained on MS medium with 5 μM BAP and 3 μM IBA and 3% sucrose. Rooting was achieved after transferral of the shoots to an MS medium with 2 μM IBA and 3% sucrose. The rooted plants were acclimatized on a mixture of limestone sand, potting soil and vermiculite in a ratio of 10:2:2, with pH in the range of 7.5-8.0. In vitro propagation methods provide an important opportunity for the propagation and preservation of H. pastinacifolia by rapidly increasing the number of plants, without disturbing the wild population.

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Some like it cold: distribution, ecology and phylogeny of Arenaria bernensis Favarger (Caryophyllaceae) from the western Prealps in Switzerland

Cited by 11 publications

References 18 publications

Genetic structure of the endemic Papaver occidentale indicates survival and immigration in the Western Prealps

Genetic structure of the endemic Papaver occidentale indicates survival and immigration in the Western Prealps

Climate Change and Alpine Screes: No Future for Glacial Relict <em>Papaver occidentale</em> (Papaveraceae) in Western Prealps

Micropropagation of the Narrow Endemic Hladnikia pastinacifolia (Apiaceae)

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