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20 April 2017

Drunken crayfish show that loneliness raises alcohol tolerance [New Scientist]

For crayfish at least, a more sociable life makes booze work quicker. When crayfish were put in water containing a little alcohol, the ones who had been kept on their own over the preceding week took longer to show signs of alcohol exposure – such as tail flips – than those who had been living with others of their kind.

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20 April 2017

Dans l’Arctique aussi, les déchets plastiques s’accumulent [Le Monde - Planète]

Jusqu’à 1 200 tonnes de fragments provenant d’Europe de l’Ouest et des Etats-Unis contaminent la surface de l’océan.

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20 April 2017

Anguille européenne : les efforts engagés par la France pour réduire les causes de mortalité et reconstituer le stock [AFB]

Après avoir subi un brusque effondrement dans les années 80, la population d’anguilles européennes a poursuivi son déclin et est aujourd’hui en danger critique d’extinction. L’espèce a bénéficié dès 2009 des premières mesures du plan national de gestion de l’anguille qui répond au règlement européen adopté en 2007.

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20 April 2017

When Measuring Biodiversity, Do Individuals Matter? [Methods Blog]

Our newly-developed method simulates intraspecific trait variation when measuring biodiversity. This gives us an understanding of how individual variation affects ecosystem processes and functioning. We were able to show that accounting for within-species variation when measuring functional diversity can reveal details about ecological communities which would otherwise remain unseen. Namely, we found a negative impact of selective-logging on birds in Borneo when accounting for intraspecific variation which we could not detect when ignoring intraspecific variation.

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19 April 2017

Mutagenicity in surface waters: new insights into an old problem [The Freshwater Blog]

Where chemicals interact with our genes, resulting in harmful mutations, potentially causing cancer and damaging our offspring – is a major environmental concern. Mutagenicity in drinking water resources – including many European rivers, lakes and reservoirs – is a particular problem. Although rarely investigated, similar mutation effects can be observed in wildlife, and it is still under debate whether mutagens can damage whole populations.

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