Wind erosion is a major phenomenon in the Sahel, and can affect soil fertility. Studies of Sahelian aeolian erosion or erosivity are scarce and have been mainly focused on the Central Sahel. Since February 2020, the number of saltating particles and the horizontal flux of aeolian sediment were monitored in Bambey (Senegal) in combination with […]
A study in Biological Reviews led by researchers from the Institute of ecology and environmental sciences – Paris, the Institute of Systematics, Evolution, Biodiversity and the Center for Ecology and Conservation Sciences makes the synthesis of published knowledge on Mullerian mimicry in aculeate wasps and bees. It argues that aculeates may be one of the most diverse groups of mimetic organisms and that the diversity of their mimetic interactions is currently underexplored.
“Global Deep Soil 2100” is a network bringing together experimenters, modellers and data users on experiments analyzing the warming of all ecosystems. A workshop to deepen the compilation, meta-analysis and modeling of data was organized at Sorbonne University as a hybrid meeting on four continents. It brought together 50 participants and was organized as an […]
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When the Sahel is mentioned today, this semi-arid African region between the Sahara and Sudanian Africa is often associated with the notion of desertification. But what do the latest advances in environmental science tell us about this desertification? To what extent is the “narrative” of Sahel desertification based on scientific results, or on other mechanisms, of a more political nature?
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This study unraveled the impacts of accelerated aging pace as a corollary of climate-driven population decline. We found transgenerational accumulation of telomere shortening implying that offspring were already born “old”. We suggest that this process may exacerbate across generations, leading to an aging loop in the population. This model posits that telomere dynamics should represent a molecular biomarker of extirpation, and likely a central cause and promising solution for future biodiversity managing actions.
🔗 Carbon Sinks | CNRS Images
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Results, published in Communications Biology , suggest that the evolution of a virus integrated into a eukaryotic genome is totally different when it is useful to the organism that carries it.
Based on the use of a smartphone application, the citizens of the three villages were invited to report water color changes, as these changes could reflect cyanobacteria proliferations.
“Here, we used 37 years of mark-recapture data in two nearby habitats inside a meadow viper Vipera ursinii population to quantify life expectancies, generation times and the shape of actuarial and reproductive senescence.”
We were saddened to learn on this the 1st day of September that our colleague and friend Christian Peeters, CNRS senior scientist at iEES-Paris, had passed away.
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