Affiner les résultats

Molecular Phylogenetics of Thecata (Hydrozoa, Cnidaria) Reveals Long-Term Maintenance of Life History Traits despite High Frequency of Recent Character Changes

Leclère, Lucas ; Schuchert, Peter ; Cruaud, Corinne ; Couloux, Arnaud ; Manuel, Michael

In: Systematic Biology, 2009, vol. 58, no. 5, p. 509-526

Genomic Scans Support Repetitive Continental Colonization Events during the Rapid Radiation of Voles (Rodentia: Microtus): the Utility of AFLPs versus Mitochondrial and Nuclear Sequence Markers

Fink, Sabine ; Fischer, Martin C. ; Excoffier, Laurent ; Heckel, Gerald

In: Systematic Biology, 2010, vol. 59, no. 5, p. 548-572

Current Methods for Automated Filtering of Multiple Sequence Alignments Frequently Worsen Single-Gene Phylogenetic Inference

Tan, Ge ; Muffato, Matthieu ; Ledergerber, Christian ; Herrero, Javier ; Goldman, Nick ; Gil, Manuel ; Dessimoz, Christophe

In: Systematic Biology, 2015, vol. 64, no. 5, p. 778-791

Components of phylogenetic signal in antagonistic and mutualistic networks.

Rohr, Rudolf P. ; Bascompte, Jordi

In: The American Naturalist, 2014, vol. 184, no. 5, p. 556–564

Recent studies have shown a phylogenetic signal in the structure of ecological networks, making the point that evolutionary history is important in explaining network architecture. However, this previous work has focused on either antagonistic (i.e., predator-prey) or mutualistic networks and has used different methodologies. Thus, a comparative assessment of both the frequency and the...

Explaining the variation in impacts of non-native plants on local-scale species richness: the role of phylogenetic relatedness

Vilà, Montserrat ; Rohr, Rudolf P. ; Espinar, José L. ; Hulme, Philip E. ; Pergl, Jan ; Roux, Johannes J. Le ; Schaffner, Urs ; Pyšek, Petr

In: Global Ecology and Biogeography, 2014, p. -

Aim: To assess how the magnitude of impacts of non-native plants on species richness of resident plants and animals varies in relation to the traits and phylogenetic position of the non-native as well as characteristics of the invaded site.Location: Global.Methods: Meta-analysis and phylogenetic regressions based on 216 studies were used to examine the effects of 96 non-native plant species on...

On the placement of the Cretaceous orthopteran Brauckmannia groeningae from Brazil, with notes on the relationships of Schizodactylidae (Orthoptera, Ensifera)

Heads, Sam W. ; Leuzinger, Léa

In: Zookeys, 2011, vol. 77, p. 17–30

Modeling food webs: exploring unexplained structure using latent traits

Rohr, Rudolf Philippe ; Scherer, Heike ; Kehrli, Patrik ; Mazza, Christian ; Bersier, Louis-Félix

In: The American Naturalist, 2010, vol. 176, no. 2, p. 170-177

Several stochastic models have tried to capture the architecture of food webs. This approach is interesting, but it is limited by the fact that different assumptions can yield similar results. To overcome this limitation, we develop a purely statistical approach. Body size in terms of an optimal ratio between prey and predator is used as explanatory variable. In 12 observed food webs, this model...

Evolution of climate niches in European mammals?

Dormann, Carsten F. ; Gruber, Bernd ; Winter, Marten ; Herrmann, Dirk

In: Biology Letters, 2010, vol. 6, p. 229–232

New skeleton from the early Oligocene of Germany indicates a stem-group position of diomedeoidid birds

De Pietri, Vanesa L. ; Berger, Jean-Pierre ; Pirkenseer, Claudius ; Scherler, Laureline ; Mayr, Gerald

In: Acta Palaeontologica Polonica, 2010, vol. 55, no. 1, p. 23-34

We report a new specimen of the extinct procellariiform species Diomedeoides brodkorbi (Aves, Diomedeoididae) from the early Oligocene (Rupelian) of Rheinweiler in southwestern Germany. The well−preserved partial skeleton allows the recognition and reassessment of new osteological details that bear on the phylogenetic affinities of diomedeoidids. The presence on the coracoid of a deeply...

A basal sauropod dinosaur from the Early Jurassic of Morocco

Allain, Ronan ; Aquesbi, Najat ; Dejax, Jean ; Meyer, Christian ; Monbaron, Michel ; Montenat, Christian ; Richir, Philippe ; Rochdy, Mohammed ; Russell, Dale ; Taquet, Philippe

In: Comptes Rendus Palevol, 2004, vol. 3(3), p. 199

Parce que les dépôts continentaux du Jurassique inférieur affleurent rarement, l'histoire des dinosaures sauropodes est très mal connue avant la radiation des néosauropodes au Jurassique moyen. Les premiers crânes de sauropodes associés à des restes osseux bien préservés datent ainsi du Jurassique moyen. Nous rapportons ici la découverte, dans le Jurassique inférieur du Haut Atlas...