References of "Vanderpoorten, Alain"
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See detailDifferences in species–area relationships among the major lineages of land plants: a macroecological perspective
Patino Llorente, Jairo ULg; Weigelt, P.; Guilhaumon, F. et al

in Global Ecology & Biogeography (in press)

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See detailThe anagenetic world of spore-producing land plants
Patino Llorente, Jairo ULg; Carine, M.A.; Fernández-Palacios, J.M. et al

in New Phytologist (2014), 201

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See detailThe anagenetic world of spore-producing land plants.
Patino Llorente, Jairo; Carine, M.A.; Fernández-Palacios, J.M. et al

in New Phytologist (2014), 201

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See detailThree species for the price of one within the moss Homalothecium sericeum s.l.
Hedenäs, Lars; Desamore, Aurélie ULg; Laenen, Benjamin ULg et al

in Taxon (2014), 63

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See detailModeling Species Distributions from Heterogeneous Data for the Biogeographic Regionalization of the European Bryophyte Flora
Mateo, R. G. A; Vanderpoorten, Alain ULg; Muñoz, J. B D et al

in PLoS ONE (2013), 8(2),

The definition of biogeographic regions provides a fundamental framework for a range of basic and applied questions in biogeography, evolutionary biology, systematics and conservation. Previous research ... [more ▼]

The definition of biogeographic regions provides a fundamental framework for a range of basic and applied questions in biogeography, evolutionary biology, systematics and conservation. Previous research suggested that environmental forcing results in highly congruent regionalization patterns across taxa, but that the size and number of regions depends on the dispersal ability of the taxa considered. We produced a biogeographic regionalization of European bryophytes and hypothesized that (1) regions defined for bryophytes would differ from those defined for other taxa due to the highly specific eco-physiology of the group and (2) their high dispersal ability would result in the resolution of few, large regions. Species distributions were recorded using 10,000 km2 MGRS pixels. Because of the lack of data across large portions of the area, species distribution models employing macroclimatic variables as predictors were used to determine the potential composition of empty pixels. K-means clustering analyses of the pixels based on their potential species composition were employed to define biogeographic regions. The optimal number of regions was determined by v-fold cross-validation and Moran's I statistic. The spatial congruence of the regions identified from their potential bryophyte assemblages with large-scale vegetation patterns is at odds with our primary hypothesis. This reinforces the notion that post-glacial migration patterns might have been much more similar in bryophytes and vascular plants than previously thought. The substantially lower optimal number of clusters and the absence of nested patterns within the main biogeographic regions, as compared to identical analyses in vascular plants, support our second hypothesis. The modelling approach implemented here is, however, based on many assumptions that are discussed but can only be tested when additional data on species distributions become available, highlighting the substantial importance of developing integrated mapping projects for all taxa in key biogeographically areas of Europe, and the Mediterranean peninsulas in particular. © 2013 Mateo et al. [less ▲]

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See detailELEVATIONAL PATTERNS OF GENETIC VARIATION IN THE COSMOPOLITAN MOSS BRYUM ARGENTEUM (BRYACEAE)
Pisa, S; Werner, OJ; Vanderpoorten, Alain ULg et al

in American Journal of Botany (2013), 100

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See detailBaker’s law and the island syndromes in bryophytes
Patino Llorente, Jairo ULg; Bisang, I; Hedenäs, L et al

in Journal of Ecology (2013)

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See detailOrigin and fate of the single island endemic moss Orthotrichum handiense
Patino Llorente, Jairo ULg; Medina, R; Vanderpoorten, Alain ULg et al

in Journal of Biogeography (2013), 40

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See detailInverted patterns of genetic diversity in continental and island populations of the heather Erica scoparia s.l.
Desamore, Aurélie ULg; Laenen, Benjamin ULg; González-Mancebo, JM et al

in Journal of Biogeography (2012), 39(3), 574--584

Aim  Using the heather Erica scoparia s.l. as a model, this paper aims to test theoretical predictions that island populations are genetically less diverse than continental ones and to determine the ... [more ▼]

Aim  Using the heather Erica scoparia s.l. as a model, this paper aims to test theoretical predictions that island populations are genetically less diverse than continental ones and to determine the extent to which island and continental populations are connected by pollen- and seed-mediated gene flow.Location  Macaronesia, Mediterranean, Atlantic fringe of Europe.Methods  Patterns of genetic diversity are described based on variation at two chloroplast DNA (cpDNA) loci and one nuclear DNA (nDNA) locus for 109 accessions across the entire distribution range of the species. Global patterns of genetic differentiation were investigated using principal coordinates analysis. Genetic differentiation between island and continental areas, estimations of pollen- and seed-mediated gene flow, and the presence of phylogeographical signal were assessed by means of Fst/NST (continental scale) and Fij/Nij (local scale). Extant and past distribution ranges of the species were inferred from niche modelling using layers describing present and Last Glacial Maximum (LGM) macroclimatic conditions.Results  The Azores exhibited a significantly higher genetic diversity than the continent. The lowest levels of genetic differentiation were observed between the Azores and the western Mediterranean, and the diversity observed in the Azores resulted from at least two colonization waves. Within the Azores, kinship coefficients showed a significant and much steeper decrease with geographical distance in the cpDNA than in the nDNA. The distribution predicted by LGM models was markedly different from the current potential distribution, particularly in western Europe, where no suitable areas were predicted by LGM models, and along the Atlantic coast of the African continent, where LGM models predicted highly suitable climatic conditions.Main conclusions  The higher diversity observed in Azorean than in continental populations is inconsistent with MacArthur and Wilson’s equilibrium model and derived theoretical population genetic expectations. This inverted pattern may be the result of extinction on the continent coupled with multiple island colonization events and subsequent allopatric diversification and lineage hybridization in the Azores. The results highlight the role of allopatric diversification in explaining diversification on islands and suggest that this process has played a much more significant role in shaping Azorean biodiversity than previously thought. [less ▲]

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See detailCryptic taxa should have names. Reflections in the glasswort genus Salicornia (Amaranthaceae)
Kadereit, G; Piraiinen, MAM; Lambinon, Jacques ULg et al

in Taxon (2012), 61

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See detailCryptic taxa should have names. Reflections in the glasswort genus Salicornia (Amaranthaceae)
Kadereit, G; Piraiinen; Lambinon, J et al

in Taxon (2012), 61

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See detailMorphology informed by phylogeny reveals unexpected patterns of species differentiation in the aquatic moss Rhynchostegium riparioides s.l
Hutsemékers, Virginie; Vieira, C; Ros, RM et al

in Molecular Phylogenetics & Evolution (2012), 62

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See detailStriking autapomorphic evolution in Physotheca J.J.Engel & Gradst. (Marchantiophyta: Lophocoleaceae) blurred its actual relationships with Leptoscyphus Mitt
Vanderpoorten, Alain ULg; Desamore, Aurélie ULg; Laenen, Benjamin ULg et al

in Journal of Bryology (2012), 34(4), 251-256

The taxonomic status and phylogenetic position of the monotypic liverwort genus Physotheca J.J.Engel & Gradst., including P. autoica J.J.Engel & Gradst. endemic to Ecuador, are inferred from phylogenetic ... [more ▼]

The taxonomic status and phylogenetic position of the monotypic liverwort genus Physotheca J.J.Engel & Gradst., including P. autoica J.J.Engel & Gradst. endemic to Ecuador, are inferred from phylogenetic analyses of two cpDNA loci. The results indicate that the genus is nested within Leptoscyphus and the new combination, L. autoicus (J.J.Engel & Gradst.) Vanderp. & Gradst., is made. This indicates, along with an increasing body of evidence, that extreme morphological transformations can obscure the phylogenetic signal present in morphological data. © 2012 British Bryological Society. [less ▲]

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See detailHow do temperate bryophytes face the challenge of a changing environment? Lessons from the past and predictions for the future
Desamore, Aurélie ULg; Laenen, Benjamin ULg; Stech, M. B et al

in Global Change Biology (2012), 18(9), 2915-2924

Bryophytes are a group of early land plants, whose specific ecophysiological and biological features, including poikilohydry, sensitivity to moderately high temperature and high dispersal ability, make ... [more ▼]

Bryophytes are a group of early land plants, whose specific ecophysiological and biological features, including poikilohydry, sensitivity to moderately high temperature and high dispersal ability, make them ideal candidates for investigating the impact of climate changes. Employing a combined approach of species distribution modelling (SDM) and molecular phylogeography in the temperate moss Homalothecium sericeum, we explore the significance of the Mediterranean refugia, contrasting the southern and northern refugia hypotheses, determine the extent to which recolonization of previously glaciated areas has been facilitated by the high dispersal ability of the species and make predictions on the extent to which it will be impacted by ongoing climate change. The Mediterranean areas exhibit the highest nucleotidic diversities and host a mixture of ancestral, endemic and more recently derived haplotypes. Extra-Mediterranean areas exhibit low genetic diversities and Euro-Siberian populations display a significant signal of expansion that is identified to be of Euro-Siberian origin, pointing to the northern refugia hypothesis. The SDMs predict a global net increase in range size owing to ongoing climate change, but substantial range reductions in southern areas. Presence of a significant phylogeographical signal at different spatial scales suggests, however, that dispersal limitations might constitute, as opposed to the traditional view of spore-producing plants as efficient dispersers, a constraint for migration. This casts doubts about the ability of the species to face the massive extinctions predicted in the southern areas, threatening their status of reservoir of genetic diversity. © 2012 Blackwell Publishing Ltd. [less ▲]

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See detailOut of Africa: northwestwards Pleistocene expansions of the heather Erica arborea
Desamore, Aurélie ULg; Laenen, Benjamin ULg; Devos, Nicolas ULg et al

in Journal of Biogeography (2011), 38

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See detailMolecular data challenge traditional subgeneric divisions in the leafy liverwort Radula
Devos, Nicolas; Renner, MAM; Gradstein, SR et al

in Taxon (2011), 60

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