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2 novembre 2017

A third of animals are vanishing as roads spread through forests [New Scientist]

Imagine you could teleport to any forest on Earth. When you land, you have a 50 per cent chance of being within half a kilometre of the forest’s edge. That is how badly our planet’s forests have been sliced and diced.
A new study shows that 85 per cent of animals are being affected by living in these dismembered forests. The findings will help conservationists figure out how best to protect these species.

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2 novembre 2017

The Language of Odors : Different Odor Dialects in Wild Otter Populations [PLOS - Blogs]

Researchers from Cardiff University in Wales have shown for the first time that genetically distinct populations of wild mammals have different “odor dialects.” In a study published in Scientific Reports, they describe how populations of otters from across the UK possess sex- and biogeography-specific odors and speculate on how these odor dialects may affect individual behavior and conservation efforts.

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2 novembre 2017

Réchauffement climatique : la bataille des 2°C est presque perdue [Le Monde - Climat]

Les Nations unies sonnent l’alerte sur les efforts très insuffisants des Etats pour contenir la hausse de la température planétaire. Après 2030, il sera trop tard.

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2 novembre 2017

Croaking Science : The Problem of Data Deficiency in Amphibian Conservation [Froglife]

There are currently 7737 recognised species of amphibian and new species are being added to the list each month. This is either due to new species discoveries or as a result of taxonomic revisions where a taxonomic split of one previously recognised species results in several new species. Each species is given an extinction risk by the International Union for the Conservation of Nature (IUCN) which ranges from Extinct through four threatened categories (Extinct in the Wild, Critically Endangered, Endangered and Vulnerable) to Near Threatened, Data Deficient and Not Evaluated (NE).

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30 octobre 2017

Des chercheurs créent un "crayon génomique" pour réécrire les lettres de l’ADN [Sciences & Avenir - Santé]

Des chercheurs ont créé une sorte de "crayon génomique" qui permet de réécrire le génome à la lettre près. Une technique qui serait plus efficace que les fameux ciseaux moléculaires CRISPR-Cas9.

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