Alain Vanderpoorten

Alain Vanderpoorten
University of Liège | ulg · Institute of Botany

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197
Publications
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Introduction
Skills and Expertise

Publications

Publications (197)
Article
Unisexual bryophytes provide excellent models to study the mechanisms that regulate the frequency of sexual vs. asexual reproduction in plants, and their ecological and evolutionary implications. Here, we determined sex expression, phenotypic sex ratio, and individual shoot traits in 242 populations of the cosmopolitan moss Pseudoscleropodium purum...
Preprint
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Epiphytic communities live in a unique, three-dimensional micro-habitat space that offers an original framework to disentangle the contribution of environmental filters, biotic interactions and dispersal limitation to community structure at small spatial scales. We took advantage of a tropical canopy crane facility to record and model spatio-tempor...
Article
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Introduction Codonoblepharon forsteri (Dicks.) Goffinet is a rare epiphytic moss characteristically associated with water-filled holes in trees. We reviewed its range and population and assessed effects of climate change. Methods An inventory of sites from where Codonoblepharon forsteri has been recorded was compiled. Extent of occurrence (EOO) an...
Article
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Research in Macaronesia has led to substantial advances in ecology, evolution and conservation biology. We review the scientific developments achieved in this region, and outline promising research avenues enhancing conservation. Some of these discoveries indicate that the Macaronesian flora and fauna is composed of rather young lineages, not Terti...
Article
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Phylogenetic turnover has emerged as a powerful tool to identify the mechanisms by which biological communities assemble. When significantly structured along environmental gradients, phylogenetic turnover evidences phylogenetic niche conservatism, a critical principle explaining patterns of species distributions at different spatio-temporal scales....
Article
Aim Understanding how climate refugia and migration over great distances have facilitated species survival during past climate changes is crucial for evaluating contemporary threats to biodiversity, particularly in the face of dispersal barriers. We address this longstanding question on the refugial origins and post-glacial development of mesic for...
Article
In the present review, we provide an updated account on the level of knowledge in island bryophyte biogeography. In the framework of the 50 most fundamental questions for present and future island biology research highlighted by Patiño et al. (2017), we summarize current knowledge in bryophyte island biogeography and outline main research avenues f...
Article
Aim: Mounting evidence suggests that failure of species distribution models to integrate local adaptation hinders our ability to predict distribution ranges, raising the question of whether modelling should be performed at the level of species (clade models) or intraspecific lineages (subclade models), characterized by the restricted availability o...
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The extent to which species can balance out the loss of suitable habitats due to climate warming by shifting their ranges is an area of controversy. Here, we assess whether highly efficient wind-dispersed organisms like bryophytes can keep-up with projected shifts in their areas of suitable climate. Using a hybrid statistical-mechanistic approach a...
Article
Introduction The Alps are one of the richest biodiversity ‘hot spots’ in Europe, but also one of the most threatened in the context of climate change. Here, we report the results of a long-term survey of the bryophyte flora of Queyras, a high-altitude limestone area, which can serve as baseline data to document and monitor the flora of this poorly-...
Article
Lowland tropical bryophytes have been perceived as excellent dispersers. In such groups, the inverse isolation hypothesis proposes that spatial genetic structure is erased beyond the limits of short‐distance dispersal. Here, we determine the influence of environmental variation and geographic barriers on the spatial genetic structure of a widely di...
Article
We present a contribution to the knowledge of the Malagasy bryoflora that results from a BRYOTAN workshop organized in September 2018 at the Antananarivo Herbarium (TAN) housed at the Parc Botanique et Zoologique de Tsimbazaza, Antananarivo, Madagascar, within the framework of the BRYOTAN project (Bryophytes of TAN). Seven taxa reported here as new...
Book
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This Red List is a summary of the conservation status of the European species of mosses, liverworts and hornworts, collectively known as bryophytes, evaluated according to IUCN’s Guidelines for Application of IUCN Red List Criteria at Regional Level. It provides the first comprehensive, region-wide assessment of bryophytes and it identifies those s...
Book
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The European Red List is a review of the status of European species according to IUCN regional Red Listing guidelines. It identifies those species that are threatened with extinction at the regional level – in order that appropriate conservation action can be taken to improve their status. This publication is a summary of the conservation status of...
Article
Bryophytes are typically seen as extremely efficient dispersers. Experimental evidence suggests that efficient short‐distance dispersal coupled with random long‐distance dispersal (LDD) leads to an inverse isolation effect. Under the latter, a higher genetic diversity of colonizing propagules is expected with increasing isolation, counteracting dif...
Article
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Climatic fluctuations during the Last Glacial Maximum (LGM) exerted a profound influence on biodiversity patterns, but their impact on bryophytes, the second most diverse group of land plants, has been poorly documented. Approximate Bayesian computations based on coalescent simulations showed that the post‐glacial assembly of European bryophytes in...
Article
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Mosses are a highly diverse lineage of land plants, whose diversification, spanning at least 400 million years, remains phylogenetically ambiguous due to the lack of fossils, massive early extinctions, late radiations, limited morphological variation, and conflicting signal among previously used markers. Here, we present phylogenetic reconstruction...
Article
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Bryophytes are a group of land plants wherein the role of hybridization has long been challenged. Using Genotyping by Sequencing to circumvent the lack of molecular variation at selected loci previously used for phylogeny and morphology, we determine the level of genetic and morphological divergence and reproductive isolation between the sibling Sy...
Article
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In the past decade, floristic studies have rebounded as checklists are fundamental for executing meta-analyses which address ecological, biogeographic and evolutionary questions of broad geographic scope. Despite the importance of checklists as baseline records of local diversity and distributions, few attempts have been made to quantify sampling e...
Article
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Dispersal is a fundamental biological process that can be divided into three phases: release, transportation, and deposition. Determining the mechanisms of diaspore release is of prime importance to understand under which climatic conditions and at which frequency diaspores are released and transported. In mosses, wherein spore dispersal takes plac...
Article
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The taxon currently known as Isothecium myosuroides var. brachythecioides (Dixon) Braithw. is reinstated as a species, I. interludens Stirt., the name originally assigned by Stirton when it was first described. The morphological characters separating I. myosuroides s.s. and I. interludens are summarised. The sporophytes of I. interludens, described...
Article
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Muchas especies de briófitas tropicales crecen en habitats periódicamente inundados como lechos del río, pantanos y cascadas, pero se presentan pocos briófitas sumergidas permanentamente y están más que todo en lagunas de alta montaña. Su identificación podría ser dificil por la modificación de rasgos inducidos por el medio acuático. Aquí se trata...
Article
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Islands harbour evolutionary and ecologically unique biota, which are currently disproportionately threatened by a multitude of anthropogenic factors, including habitat loss, invasive species and climate change. Native forests on oceanic islands are important refugia for endemic species, many of which are rare and highly threatened. Long-term monit...
Article
Aim Trees represent striking examples of habitat islands, with various degrees of spatial isolation and evolving properties during their life cycle. Here, we investigate whether changes in habitat conditions, dispersal limitations or competition cause variation in patterns of epiphytic species richness and turnover. Location Madeira island. Taxon...
Article
Bryophytes include about 20,000 species characterized by their poikilohydric condition, high long-distance dispersal capacities, and cold tolerance. Despite these specific life-history traits, large-scale biogeographic patterns in bryophytes are consistent with those observed in other groups, wherein they have been interpreted in terms of historica...
Article
Morphometrics, the assignment of quantities to biological shapes, is a powerful tool to address taxonomic, evolutionary, functional and developmental questions. We propose a novel method for shape quantification of complex modular architecture in thalloid plants, whose extremely reduced morphologies, combined with the lack of a formal framework for...
Article
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The bryophyte flora of the Sahelian region of sub-Saharan Africa is characterized by a low species richness, but is also extremely poorly documented. We present here the results of a floristic survey in Kedougou (eastern Senegal), which yielded 22 species. Two liverworts and 15 moss species are new to the country, so that the bryophyte flora of Sen...
Article
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In this paper we provide new bryophyte reports for Macaronesia as a whole, for single archipelagos, and for single islands. New to Macaronesia are Aneura pseudopinguis, Didymodon brachyphyllus, Diplophyllum obtusifolium, Distichium capillaceum, and Schizymenium pontevedrense. First archipelago reports concern Brachythecium albicans (Canary Islands)...
Article
A checklist of 137 liverwort and 445 moss species is established for Andorra based on a review of the literature and a long-term floristic survey. Five moss species, Barbula amplexifolia, Ditrichum zonatum, Grimmia donniana, Pohlia bulbifera, and P. lutescens, are new to the Iberian Peninsula. Another 7 liverwort and 156 moss species are new to And...
Article
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Bryophytes, with their reduced morphologies and challenging taxonomy, appear as ideal candidates for the application of the fast-developing tools of molecular species delimitation. Here, we apply species delimitation techniques to the moss genus Rhynchostegiella, which has long served as a convenient repository for small pleurocarpous species. Spec...
Article
Sexual condition has been employed as a key character within the moss family Thuidiaceae to discriminate the dioicous genera Aequatoriella and Thuidiopsis from the monoicous Pelekium. Here, we implemented phylogenetic analyses of the chloroplast trnL-F region and two unicopy nuclear regions to test the monophyly of Pelekium, and hence, the taxonomi...
Article
Why some species exhibit larger geographical ranges than others, and to what extent does variation in range size affect diversification rates, remains a fundamental, but largely unanswered question in ecology and evolution. Here, we implement phylogenetic comparative analyses and ancestral area estimations in Radula, a liverwort genus of Cretaceous...
Article
The impact of Pleistocene climate changes substantially varied between tropical regions, resulting in striking differences in angiosperm species richness caused by post-glacial recolonization delays. Tropical bryophytes, which have been perceived as extremely good dispersers due to biased rates of monoecy and hence spore production, differ striking...
Article
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Paper presents couple of new national and regional bryophyte records accross the world, including Europe, Asia, Africa, Central and South America, Antarctica. In Europe there are interesting findings from Poland (Sphagnum molle, Pseudocalliergon lycopodioides), Hungary (Seligeria acutifolia), Bulgaria and Macedonia (Didymodon icmadophilus), etc. A...
Article
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Paleontological evidence and current patterns of angiosperm species richness suggest that European biota experienced more severe bottlenecks than North American ones during the last glacial maximum. How well this pattern fits other plant species is less clear. Bryophytes offer a unique opportunity to contrast the impact of the last glacial maximum...
Article
As opposed to angiosperms, moss species richness is similar among tropical regions of the world, in line with the hypothesis that tropical bryophytes are extremely good dispersers. Here, we reconstructed the phylogeny of the pantropical moss genus Pelekium to test the hypothesis that high migration rates erase any difference in species richness amo...
Article
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Sexual traits are often the most divergent characters among closely related species, suggesting an important role of sexual traits in speciation. However, to prove this, we need to show that sexual trait differences accumulate before or during the speciation process, rather than being a consequence of it. Here, we contrast patterns of divergence am...
Data
Table S2. List of compounds detected in the four species.
Data
Table S1. Detailed list of sampled individuals for the four Bicyclus species.
Article
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Oceanic islands are of fundamental importance for the conservation of biodiversity because they exhibit high endemism rates coupled with fast extinction rates. Nowhere in Europe is this pattern more conspicuous than in the Macaronesian biogeographic region. A large network of protected areas within the region has been developed, but the question of...
Article
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Background and aims: The settling velocity of diaspores is a key parameter for the measurement of dispersal ability in wind-dispersed plants and one of the most relevant parameters in explicit dispersal models, but remains largely undocumented in bryophytes. The settling velocities of moss spores were measured and it was determined whether settlin...
Article
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It remains hotly debated whether latitudinal diversity gradients are common across taxonomic groups and whether a single mechanism can explain such gradients. Investigating species richness (SR) patterns of European land plants, we determine whether SR increases with decreasing latitude, as predicted by theory, and whether the assembly mechanisms d...
Article
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Shifts in sexual systems are one of the key drivers of species diversification. In contrast to angiosperms, unisexuality prevails in bryophytes. Here, we test the hypotheses that bisexuality evolved from an ancestral unisexual condition and is a key innovation in liverworts. We investigate whether shifts in sexual systems influence diversification...
Article
Full-text available
Why some species exhibit larger geographical ranges than others remains a fundamental, but largely unanswered, question in ecology and biogeography. In plants, a relationship between range size and mating system was proposed over a century ago and subsequently formalized in Baker's Law. Here, we take advantage of the extensive variation in sexual s...
Book
Full-text available
Inventaire de 720 espèces de bryophytes sur l'ensemble du territoire de la Wallonie sur une période de 35 ans (1980-2014) sur base de 280.000 observations effectuées sur le terrain
Article
Aim Why some groups of species radiate, when others appear not to have done so to, remains a fundamental question in evolutionary biology. Here, we investigate why island endemism, a common surrogate of speciation rate, reaches its lowest levels among land plants in bryophytes. Using molecular phylogeographical analyses in the moss genus Rhynchoste...
Article
Full-text available
Using the moss genus Rhynchostegiella (Brachytheciaceae) as a model, we address the question of whether taxonomic short- comings account for the extremely low rates of endemism reported in the Azorean bryophyte flora. eight accessions initially assigned to three of the four previously reported species in the Azores were identified as a distinct spe...
Article
The distinction between native and introduced biotas presents unique challenges that culminate in organisms with high long-distance dispersal capacities in a rapidly changing world. Bryophytes, in particular, exhibit large distribution ranges and some species can truly be qualified as cosmopolitan. Cosmopolitan species, however, typical occur in di...
Article
Essl and colleagues documented worldwide invasion patterns in bryophytes, which so far have been neglected in invasion biology. In the absence of historical evidence, Essl and colleagues used criteria such as anomalous geographical distribution, preference for disturbed habitats, and indirect associations with some means of human transport as crite...
Article
Full-text available
The perceived low levels of genetic diversity, poor interspecific competitive and defensive ability, and loss of dispersal capacities of insular lineages have driven the view that oceanic islands are evolutionary dead ends. Focusing on the Atlantic bryophyte flora distributed across the archipelagos of the Azores, Madeira, the Canary Islands, weste...