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17 February 2017

Les glaciers alpins fondent à très grande vitesse [Le Monde - Climat]

Selon une étude internationale, les formations glaciaires réagissent plus fortement que prévu au réchauffement climatique.

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16 February 2017

Biodiversity can promote ecosystem efficiency [Eawag Aquatic Research]

Humans influence evolution. In the case of whitefish in Swiss lakes, one consequence of this is replacement of a diversity of specialised species by fewer generalists. A recent analysis now suggests that communities of diverse specialists utilise trophic resources more efficiently.

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16 February 2017

Urban butterfly declines 69% compared to 45% drop in countryside [The Guardian]

Pesticides, paving and higher temperatures have put huge strain on butterflies in cities over past two decades, finds study.

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16 February 2017

Small birds, big effects: the little auk transforms high Arctic ecosystems [The Freshwater Blog]

Ecosystems on the Greenland coastline of the North Water Polynya are transformed – both positively and negatively – by nutrients brought back to land from the open sea by a tiny ‘ecosystem engineer’ bird, the little auk, according to a new study.

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16 February 2017

La lutte contre la hausse de consommation des pesticides a échoué [Reporterre]

Alors que la France a annoncé il y a dix ans vouloir réduire de moitié sa consommation de pesticides, celle-ci a crû de 25 % entre 2009 et 2014. Le plan Ecophyto 2 ne parvient pas à imposer aux entreprises phytopharmaceutiques de réduire leurs ventes.

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