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30 mai 2017

Amazon rainforest may be more resilient to deforestation than previously thought [Phys]

The Amazon forest stores about half of the global tropical forest carbon and accounts for about a quarter of carbon absorption from the atmosphere by global forests each year. As a result, large losses of Amazonian forest cover could make global climate change worse.

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29 mai 2017

The high cost of communication among social bees [Phys]

Eusocial insects are predominantly dependent on chemosensory communication to coordinate social organization and define group membership. As the social complexity of a species increases, individual members require a greater diversity of signals. The communications of highly social insects such as wasps are well documented, but relatively little is known about the evolutionary transition between solitary and social living.

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29 mai 2017

Scientists are accidentally helping poachers drive rare species to extinction [The Conversation]

"But after we published our data, the landowners with whom we worked began to find trespassers on their properties. The interlopers had scoured online wildlife atlases. As well as putting animals at risk, this undermines vital long-term relationships between researchers and landowners."

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26 mai 2017

See-through frog has heart you can see beating through its chest [New Scientist]

A newly discovered glass frog species whose beating heart is visible through its chest is already feared to be in danger, because its habitat is threatened by oil exploitation.

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26 mai 2017

Tree-climbing goats spit out and disperse valuable argan seeds [New Scientist]

In south-western Morocco, acrobatic goats climb argan trees to eat their fruit and leaves. A tree full of goats is a striking sight, but the goats’ widely overlooked habit of regurgitating and spitting out the nuts may be important to the life of these forests.

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