A further new species in the lichen genus Arctomia: A. borbonica from Reunion (Mascarene archipelago)

in MycoKeys (2012), 4

Arctomia borbonica sp. nov. is described as new for science from montane natural and secondary habitats in Reunion in the Mascarene archipelago (Indian Ocean). It has a sterile, foliose, usually wrinkled ... [more ▼]

Arctomia borbonica sp. nov. is described as new for science from montane natural and secondary habitats in Reunion in the Mascarene archipelago (Indian Ocean). It has a sterile, foliose, usually wrinkled, thallus whose margins produce goniocysts that disintegrate into a soredioid margin; it looks like a Leptogium species. Its phylogenetic position in the Arctomiaceae (Ostropomycetidae, Ascomycota) has been determined with 3 genes (nuLSU, mtSSU, RPB1) inferences. [less ▲]

Multilocus-based phylogeny and species recognition within the cosmopolitan Peltigera neopolydactyla-dolichorhiza complex

Poster (2012, January)

The Peltigera neopolydactyla/dolichorhiza complex is broadly distributed, growing in boreal and temperate regions from northern Norway to southern Chile, as well as in tropical mountains. Observed ... [more ▼]

The Peltigera neopolydactyla/dolichorhiza complex is broadly distributed, growing in boreal and temperate regions from northern Norway to southern Chile, as well as in tropical mountains. Observed morphotype and chemotype variation within this complex suggested the presence of multiple undescribed species. We inferred the phylogeny of Peltigera section Polydactylon with a special focus on the Peltigera neopolydactyla/dolichorhiza complex to determine the full breadth of this species complex, and to assess if taxa from different parts of the worlds but with similar morphological features share a most recent common ancestor. About 525 ITS sequences representing 104 distinct haplotypes were generated for representatives of Peltigera section Polydactylon. We selected a representative of each broadly defined phylotype for which three protein-coding loci: RPB1.1, b-tubulin and EFT2.1 were sequenced. Each of the three protein coding loci provided equivalent or more resolution and support than the ITS locus. The greatest proportion of significantly supported nodes across the tree resulted from β-tubulin alone. Many specimens identified as P. neopolydactyla and P. dolichorhiza are placed outside of this species complex. As currently defined both species represent polyphyletic assemblages of taxa including several potentially undescribed species. Our phylogenies suggest the presence of putatively new species within several complexes across the section. [less ▲]

Further photomorphs in the lichen family Lobariaceae from Reunion (Mascarene archipelago) with notes on the phylogeny of Dendriscocaulon cyanomorphs

in Bryologist (2012), 115(2), 243-254

Two new photomorphs in the Lobariaceae have been found on the remote island of Reunion in the Mascarene archipelago: the free-living Dendriscocaulon-like cyanomorph of the pantropical Lobaria discolor ... [more ▼]

Two new photomorphs in the Lobariaceae have been found on the remote island of Reunion in the Mascarene archipelago: the free-living Dendriscocaulon-like cyanomorph of the pantropical Lobaria discolor, and the cyanomorph of Sticta dichotoma, a species apparently endemic to the western parts of the Indian Ocean, known only from its chloromorph. Inferences from three loci demonstrate that the fungus involved in each morph of either pair belongs to the same species. Phylogenetic analyses resolve all genera of the Lobariaceae as polyphyletic, and all Dendriscocaulon-like cyanomorphs within Lobaria, except for D. dendroides, which belongs to Sticta. [less ▲]

Biodiversité et aménagement du territoire : quels indicateurs pour la Wallonie ?

Report (2011)

La biodiversité ou diversité du monde vivant peut, selon une approche spatiale, se définir au travers de l’expression et de la disponibilité des niches écologiques des espèces de la flore et de la faune ... [more ▼]

La biodiversité ou diversité du monde vivant peut, selon une approche spatiale, se définir au travers de l’expression et de la disponibilité des niches écologiques des espèces de la flore et de la faune d’un territoire. Pour permettre l’existence et le maintien de cette biodiversité, les niches doivent répondre aux exigences écologiques variées des espèces vivantes. Ces exigences concernent tout particulièrement la surface mobilisable, la disponibilité de la niche dans le temps et la connectivité des lieux où elle s’exprime, l’absence de substances eutrophisantes ou toxiques d’origine anthropique, et d’une façon plus générale la fonctionnalité des processus fondamentaux du milieu (bilan hydrique, cycle du carbone). Les options prises en matière de développement territorial peuvent constituer des leviers puissants pour enrayer la forte érosion constatée de la biodiversité en Wallonie. Ces leviers sont multiples : création d’aires protégées, prise en compte de la connectivité écologique dans les différents outils (plan de secteur, schémas de structure, plans communaux d’aménagement...), intégration systématique de la fonction écologique des habitats naturels dans les différentes catégories d’affectation du sol, etc. Placé dans la perspective de la planification du SDER, la biodiversité doit donc être abordé à la fois comme un secteur réclamant que des espaces lui soient directement dédicacés et comme une contrainte ou une opportunité à intégrer dans tous les autres actes et programmes territoriaux. [less ▲]

Discovering the lichen diversity of a remote tropical island: working list of species collected on Reunion (Mascarene archipelago, Indian Ocean)

in Herzogia (2011), 24(2), 325-349

463 lichen taxa are reported from the island of Reunion (Mascarene archipelago) in the Indian Ocean. This report is based on extensive collections recently made by the authors or hosted in B and LG. A ... [more ▼]

463 lichen taxa are reported from the island of Reunion (Mascarene archipelago) in the Indian Ocean. This report is based on extensive collections recently made by the authors or hosted in B and LG. A total of c. 600 species is estimated for the number of lichenized fungi present on the island; although this is a low figure for a varied tropi- cal area, this is plausible due to its small size and remoteness. The significance of the lichen diversity of the island lays in its endemics, which need further study for a reliable assessment, and in the occurrence of a poorly known southern hemisphere element (“austral” species). The discovery of the following in Reunion is of special interest as it considerably enlarges their distribution range: Anzia corallophora, Caloplaca caesiosorediata, Coccocarpia delicatula, Fuscopannaria praetermissa, Gomphillus morchelloides, G. pedersenii, Gyalideopsis bispora, Heterodermia koyana, Hypotrachyna evansii, Lithogyalideopsis zeylandica, Lobaria asperula, Megaloblastenia marginiflexa var. dimota, Menegazzia capitata, Myeloconis erumpens and Pannaria squamulosa. [less ▲]

One hundred new species of lichenized fungi: a signature of undiscovered global diversity

in Phytotaxa (2011), 18

Thème 1A Eco-zonings - Subvention 2009-2010 - Rapport final

Report (2010)

Dans le cadre d'une recherche exploratoire, le concept d'éco-zoning est encadré par comparaison à des concepts similaires présents dans la littérature, des études de cas et des rencontres avec les parties ... [more ▼]

Dans le cadre d'une recherche exploratoire, le concept d'éco-zoning est encadré par comparaison à des concepts similaires présents dans la littérature, des études de cas et des rencontres avec les parties prenantes. puis une définition en est formulée. La mise en oeuvre coordonnée de mesures d'aménagement et d'urbanisme, de management environnemental et d'écologie industrielle est préconisée pour contribuer à une plus grande durabilité des zones d'activité économique. Une structure d'évaluation des zones d'activité économique est élaborée. [less ▲]

A two-gene phylogeny shows the lichen genus Niebla (Lecanorales) is endemic to the New World and does not occur in Macaronesia nor in the Mediterranean basin

in Fungal Biology (2010), 114

Notes on the lichen genus Erioderma in La Réunion

in Cryptogamie. Mycologie (2009), 30

Taxonomy, phylogeny and biogeography of the lichen genus Peltigera in Papua New Guinea

in Fungal Diversity (2009), 38