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24 May 2017

Confronting the risks of large-scale invasive species control [Nature Ecology & Evolution - Comment]

Julien Cucherousset

Large-scale invasive species control initiatives are motivated by laudable desires for native species recovery and economic benefits, but they are not without risk. Management interventions and policies should include evidence-based risk–benefit assessment and mitigation planning.

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24 May 2017

[Offre de thèse financée] Effets de la variabilité génotypique et phénotypique des espèces invasives sur le fonctionnement des écosystèmes aquatiques

Les invasions biologiques sont une cause majeure d’érosion de la biodiversité qui affecte tous les niveaux d’organisation biologique. De récentes études ont démontré l’importance de la variabilité phénotypique et génotypique au sein des populations invasives. Néanmoins, il n’existe à peu d’étude ayant abordé les invasions biologiques de manière intégrative en utilisant une approche éco-évolutive allant du génotype à l’écosystème. Dans ce projet de thèse, nous proposons donc de déterminer le rôle relatif de l’environnement, du mode de colonisation et des pratiques de gestion sur la variabilité phénotypique et génotypique des espèces non-natives et de mesurer l’impact de cette variabilité individuelle sur le fonctionnement des écosystèmes.

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18 May 2017

Did the first farmers deliberately domesticate wild plants? [Evolution Letters Blogs]

Study with Benoît Pujol

A new study published in Evolution Letters, available now via Early View, has given us an interesting insight into the history of crop domestication. The work, by researchers at The University of Sheffield, UK, and the University of Toulouse, France, shows that seed enlargement probably evolved without the deliberate intention of early crop farmers. Humans have been artificially selecting for specific traits in domestic plants and animals for hundreds of years, selecting only the best individuals to breed and rejecting those with undesirable traits. However, this study shows that during the course of domestication, unintended changes have also occurred with dramatic effects.(...)

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17 May 2017

[Podcast] Sapience N°8 - Le réchauffement climatique met-il en danger la flore microbienne ? [Radio Village Innovation]

Suite au communiqué de presse CNRS du 8 Mai 2017 "Réchauffement climatique : la flore microbienne en danger ?", Jean-Louis Vinet, de Radio Village Innovation, interroge Joël White sur ces récents travaux de recherche.(A 2min38)

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11 May 2017

Investors and Exploiters in Ecology and Economics - Principles and Applications

Philipp Heeb


In the natural world, some agents (investors) employ strategies that provide resources, services, or information, while others (exploiters) gain advantages through these efforts. This behavior coexists and can be observed in many species and at many levels. For example, bacteria depend on the existence of biofilms to synthesize constituent proteins; cancerous cells employ angiogenesis to feed a tumor; and parents forgo vaccinating their children yet benefit from herd immunity. Two independent research traditions have developed to analyze this behavior—one couched in evolutionary theory championed by behavioral ecologists, the other in social science concepts advocated by economists. In this book experts from economics, evolutionary biology, behavioral ecology, public health, and anthropology look for commonalities in understanding and approach.

The contributors consider parasitic strategies in ecological and economic terms; the governance of natural resources, with insights from “producer-scrounger models,” forest management, and game theory; human health, discussing therapeutic opportunities, public health economics, and the integration of perspectives; and behavioral, social, and institutional consequences of exploitation strategies.

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