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27 octobre 2017

Genome Research Challenges Previous Understanding of the Origin of Photosynthesis [Berkeley Lab]

Plant biologists at Lawrence Berkeley National Laboratory (Berkeley Lab), in collaboration with colleagues from the California Institute of Technology (Caltech), have reconstructed the evolutionary history of photosynthesis to provide new insight into the yet-unfolding story of its origins.

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26 octobre 2017

Managing invasive species on islands can curb global extinction rates [IUCN]

Managing invasive species could benefit 95 per cent of Endangered and Critically Endangered amphibians, birds and mammals that live on islands, according to a study involving researchers from the IUCN Species Survival Commission (SSC) Invasive Species Specialist Group and IUCN Member Island Conservation, published today in the journal Science Advances.

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26 octobre 2017

New genes on "deteriorating" Y chromosome [Phys]

The Y chromosome, which is found only in males, is difficult to decode even with the latest sequencing technologies. Among evolutionary biologists, the question as to which genes lie on the male sex chromosome and where they came from is therefore hotly debated. Using an innovative analysis method, a team of population geneticists from Vetmeduni Vienna have now made a crucial breakthrough.(...)

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26 octobre 2017

Artificial lighting along banks of rivers and lakes alters riparian ecology [The Freshwater Blog]

Artificial lighting beside rivers and lakes can significantly alter the dynamics of aquatic insect populations and their predators, according to a new study. The findings of a new open-access paper published in Frontiers in Environmental Science show how nocturnal lighting along waterways attracts large numbers of insects, which in turn attracts predators such as spiders.

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26 octobre 2017

À propos du rôle des plumes dans la digestion chez les grèbes [Ornithomedia]

Selon un article publié en 2017 dans le Wilson Journal of Ornithology, la formation de pelotes serait une conséquence et non la cause de l’ingestion de plumes.

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