Phylogeography sheds light on the central–marginal hypothesis in a Mediterranean narrow endemic plant

Pouget, Marine; Youssef, Sami; Migliore, Jérémy; Juin, Marianick; Mèdail, Frédéric; Baumel, Alex

doi:10.1093/aob/mct183

Cited by 27 publications

(32 citation statements)

References 52 publications

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“…The results reported by Pouget et al (2013) were used to compute the evolutionary legacy (EL) of A. provincialis for each of its occurrences. The EL was computed from the haplotypic diversity of four chloroplast loci (internal part of matK gene, trnK intron plus 5 part of matK, tnrL-trnF spacer and trnT-trnL spacer).…”

Section: Assessment Of Evolutionary Legacymentioning

confidence: 99%

“…The EL was computed from the haplotypic diversity of four chloroplast loci (internal part of matK gene, trnK intron plus 5 part of matK, tnrL-trnF spacer and trnT-trnL spacer). This haplotypic diversity was demonstrated to be geographically costructured with the genomic multi-locus variation estimated by Amplified Fragment Length Polymorphism as well as the ecological distinctness of the populations (Pouget et al, 2013), and therefore we considered it a relevant indicator of the EL of A. provincialis.…”

Section: Assessment Of Evolutionary Legacymentioning

confidence: 99%

“…First, a chronogram was created using the BEAST software to approximate the ages of divergence among haplotypes of A. provincialis (details of the methods are presented by Pouget et al (2013)). This chronogram was used to calculate a distance matrix between the haplotypes using the function "distTips" (package "adephylo", R).…”

Section: Assessment Of Evolutionary Legacymentioning

confidence: 99%

“…A recent phylogeographical study demonstrated highly structured genetic diversity from the centre towards the margins of its distribution and a high distinctness of its populations at the genetic and ecological levels (Pouget et al, 2013). One of the main striking points of the phylogeography of A. provincialis, revealed by the study of Pouget et al (2013), is that the core area of its distribution has the highest level of genetic diversity. Any efficient conservation planning of A. provincialis should, at least, target this core area.…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies Imbert et al, 2011;Pouget et al, 2013) have demonstrated that A. provincialis evolved throughout the Pleistocene, acquiring very specific adaptations to persist in its highly stressful habitats. A recent phylogeographical study demonstrated highly structured genetic diversity from the centre towards the margins of its distribution and a high distinctness of its populations at the genetic and ecological levels (Pouget et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Spatial mismatches between plant biodiversity facets and evolutionary legacy in the vicinity of a major Mediterranean city

Pouget

Youssef

Dumas

et al. 2016

Ecological Indicators

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a b s t r a c tThe analyses of congruencies among biodiversity components address the issue of conservation priorities, but previously they have been done at coarse scales with limited relevance for conservation actions. Moreover, these former studies consider only the species level components of biodiversity and not the intra-specific evolutionary legacy that influences future biodiversity. This study represents the first assessment of congruencies between various components of plant biodiversity and the evolutionary legacy of a narrow endemic taxon (Arenaria provincialis, Caryophyllaceae). Assessment is conducted in the vicinity of a Mediterranean big city (Marseille, S.E. France) where habitats and flora are threatened by mass tourism and urban sprawl. Our analyses reveal that the different plant biodiversity facets assessed are spatially mismatched and unequally protected. Moreover, by using only species-level components of biodiversity as conservation targets we ignore crucial areas for the evolutionary legacy of this narrow endemic plant. Our results highlight the crucial role of phylogeography as a criterion to target the genetic precursors of future biodiversity in conservation planning.

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Section: Assessment Of Evolutionary Legacymentioning

confidence: 99%

Section: Assessment Of Evolutionary Legacymentioning

confidence: 99%

Section: Assessment Of Evolutionary Legacymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Spatial mismatches between plant biodiversity facets and evolutionary legacy in the vicinity of a major Mediterranean city

Pouget

Youssef

Dumas

et al. 2016

Ecological Indicators

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Islands, mainland, and terrestrial fragments: How isolation shapes plant diversity

Martín-Queller

Albert

Dumas

et al. 2017

Ecology and Evolution

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The fragmentation of natural habitats is a major threat for biodiversity. However, the impact and spatial scale of natural isolation mechanisms leading to species loss, compared to anthropogenic fragmentation, are not clear, mainly due to differences between fragments and islands, such as matrix permeability. We studied a 500 km2 Mediterranean region in France, including urban habitat fragments, continuous habitat, and continental‐shelf islands. On the basis of 295 floristic relevés, we built species–area relationships to compare isolation in fragments after urbanization, with continuous habitat and continental‐shelf islands. We assumed either no dispersal, infinite dispersal, or estimated intermediate levels of habitat reachability through graph theory. Isolation mechanisms occurred in fragments but with a lower strength than in near‐shore islands, and most importantly affected perennial plants. Annual plants were less affected, probably due to their smaller size and shorter life cycle. Isolation occurred at landscape level in fragments and at patch level in islands. The amount of reachable habitat (accounting for spatial configuration) explained local species richness in both systems, but the amount of habitat (no consideration of spatial configuration) was already a good predictor. These results suggest an important role of habitat amount around fragments in mitigating the isolation effects observed in near‐shore islands, and the importance of carefully considering different functional groups.

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Conservation unit allows assessing vulnerability and setting conservation priorities for a Mediterranean endemic plant within the context of extreme urbanization

et al. 2016

Self Cite

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Current biodiversity patterns are a temporary state in a continuum of ecological and evolutionary changes. Conservation policies must incorporate this dynamic to ensure the long-term conservation of biodiversity which is particularly challenging in a context of extreme urbanization. An original approach, rarely used for plant conservation, is to define conservation units to set conservation priorities within species by combining ecological and evolutionary divergences. In the Maritime Alps (southern France), the ecological and evolutionary divergences between the populations of Acis nicaeensis has allowed us the determination of conservation units of this endemic plant threatened by severe urbanization and land-use changes. Phylogeographical data (cpDNA haplotype) were considered as a proxy for evolutionary legacy, and ecological data (multivariate analysis of habitat) were used as a proxy for ecological distinctiveness. Our goal was to explore the potential of this approach to assess vulnerability and set conservation priorities for narrow endemic species in the context of conflict between biodiversity and human activities. The results highlight five different conservation units within A. nicaeensis distribution. Genetic and ecological divergences are present at fine-scale. This pattern is highly endangered by urbanisation. This study highlights the vulnerability of conservation units near the coast whose Communicated by Daniel Sanchez Mata.

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Phylogeography sheds light on the central–marginal hypothesis in a Mediterranean narrow endemic plant

Cited by 27 publications

References 52 publications

Spatial mismatches between plant biodiversity facets and evolutionary legacy in the vicinity of a major Mediterranean city

Spatial mismatches between plant biodiversity facets and evolutionary legacy in the vicinity of a major Mediterranean city

Islands, mainland, and terrestrial fragments: How isolation shapes plant diversity

Conservation unit allows assessing vulnerability and setting conservation priorities for a Mediterranean endemic plant within the context of extreme urbanization

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