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27 mars 2017

Will your paper be used in a meta-analysis ? Make the reach of your research broader and longer lasting [Methods in Ecology and Evolution]

1.Ecological and evolutionary research increasingly uses quantitative synthesis of primary research studies (meta-analysis) for answering fundamental questions, informing environmental policy and summarizing results for decision makers.
2.Knowing how meta-analysis works is important for researchers so that their research can have broader impact. Meta-analytic thinking encourages scientists to see single primary research studies as substantial contributions to a larger picture.(...)

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27 mars 2017

Genetic evidence challenges the native status of a threatened freshwater fish (Carassius carassius) in England [Ecology& Evolution]

A fundamental consideration for the conservation of a species is the extent of its native range, that is, regions naturally colonized. However, both natural processes and human-mediated introductions can drive species distribution shifts. Ruling out the human-mediated introduction of a species into a given region is vital for its conservation, but remains a significant challenge in most cases. The crucian carp Carassius carassius (L.) is a threatened freshwater fish thought to be native to much of Europe. However, its native status in England is based only on anecdotal evidence.(...)

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27 mars 2017

The highly threatened and little known Amazonian savannahs [Nature Ecology & Evolution - Comment]

The biodiversity of the Amazonian savannahs may be lost before it is known, unless scientists, conservationists and policymakers come together quickly to protect it.

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27 mars 2017

The multilayer nature of ecological networks [Nature Ecology & Evolution]

Keywords : ecological networks

Although networks provide a powerful approach to study a large variety of ecological systems, their formulation does not typically account for multiple interaction types, interactions that vary in space and time, and interconnected systems such as networks of networks. The emergent field of ‘multilayer networks’ provides a natural framework for extending analyses of ecological systems to include such multiple layers of complexity, as it specifically allows one to differentiate and model ‘intralayer’ and ‘interlayer’ connectivity. The framework provides a set of concepts and tools that can be adapted and applied to ecology, facilitating research on high-dimensional, heterogeneous systems in nature.(...)

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27 mars 2017

A new hypothesis of dinosaur relationships and early dinosaur evolution [Nature]

Keywords : palaeontology, phylogenetics

For 130 years, dinosaurs have been divided into two distinct clades—Ornithischia and Saurischia. Here we present a hypothesis for the phylogenetic relationships of the major dinosaurian groups that challenges the current consensus concerning early dinosaur evolution and highlights problematic aspects of current cladistic definitions.(...)

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