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Publications associées (176)

Quorum Sensing Contributes to Natural Transformation of Vibrio cholerae in a Species-Specific Manner

Melanie Blokesch, Patrick Martin Seitz, Gaia Francesca Marianne Suckow

Although it is a human pathogen, Vibrio cholerae is a regular member of aquatic habitats, such as coastal regions and estuaries. Within these environments, V. cholerae often takes advantage of the abundance of zooplankton and their chitinous molts as a nut ...

American Society for Microbiology2011

Invasion and eradication of a competitively superior species in heterogeneous landscapes

Alexandre Buttler, Séverine Vuilleumier Varisco, Nicolas Perrin

The effect of heterogeneous environments upon the dynamics of invasion and the eradication or control of invasive species is poorly understood, although it is a major challenge for biodiversity conservation. Here, we first investigate how the probability a ...

Elsevier2011

Long-term effects of grazing exclusion on aboveground and belowground plant species diversity in a steppe of the Loess Plateau, China

Background and aims - Livestock grazing exclusion was widely used to manage degraded grassland ecosystems, but little is known on the effects of long-term grazing exclusion on aboveground and belowground species diversity of the steppe vegetation in China. ...

2011

Comparing COI and SSU rDNA barcodes for assessing the diversity and phylogenetic relationships of cyphoderiid testate amoebae (Rhizaria: Euglyphida)

Edward Mitchell, Enrique Lara, Thierry Jean Heger

The mitochondrial Cytochrome Oxidase Subunit 1 gene (COI) has been promoted as an ideal “DNA barcode” for animal species and other groups of eukaryotes. However, the utility of the COI marker for species level discrimination and for phylogenetic analyses h ...

2011

Testate amoeba analysis of lake sediments: impact of filter size and total count on estimates of density, species richness and assemblage structure

Edward Mitchell

Testate amoebae are informative about palaeoecological conditions, but the methods generally used for their analyses in lake sediments differ from those used for their analyses in peats, making comparisons difficult. This study examines how filter mesh siz ...

2010

Description of a new Eudicella daphnis (Buquet) from Eastern Africa (Scarabaeidae, Cetoniinae)

Michele De Palma

A new Eudicella (Eudicella) daphnis is described from Eastern Africa and diagnosed against the taxa that mimic it. A revised dichotomic key to all Eudicella (Eudicella) species and subspecies is presented. ...

2010

Accumulation and detoxification of sulfonated aromatic compounds from dye and textile industries by different plant species

Jean-Paul Schwitzguebel

Sulfonated anthraquinones are precursors of a large family of synthetic dyes and pigments, recalcitrant to biodegradation and thus not eliminated by classical wastewater treatments. In the development of a phytotreatment to remove sulfonated aromatic compo ...

2010

Contrasting Species-Environment Relationships in Communities of Testate Amoebae, Bryophytes and Vascular Plants Along the Fen-Bog Gradient

Edward Mitchell, Mariusz Lamentowicz

We studied the vegetation, testate amoebae and abiotic variables (depth of the water table, pH, electrical conductivity, Ca and Mg concentrations of water extracted from mosses) along the bog to extremely rich fen gradient in sub-alpine peatlands of the Up ...

Springer-Verlag2010

Potential impacts of precipitation change on large-scale patterns of tree diversity

Andrea Rinaldo, Enrico Bertuzzo

Forests are globally important ecosystems host to outstanding biological diversity. Widespread efforts have addressed the impacts of climate change on biodiversity in these ecosystems. We show that a metacommunity model founded on basic ecological processe ...

American Geophysical Union2010

Long-term dynamics of aboveground fungal communities in a subalpine Norway spruce forest under elevated nitrogen input

Rita Bütler Sauvain, François Gillet, Simon Egli

As anthropogenic N deposition has been suspected to be the main reason for the decline of macromycetous sporocarp production in forest ecosystems, various N-fertilization experiments were started in the mid 1990s. The dynamics of ectomycorrhizal (root-inha ...

Springer Verlag2010

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