L'unité Fonctionnement écologique et gestion durable des agrosystèmes bananiers et ananas (Geco) a son nouveau site web en ligne. Le site allie simplicité et efficacité des informations, pour une présentation claire de l'unité, de ses équipes et de l'Observatoire des marchés et ses produits éditoriaux.
Conférence internationale organisée par l'Universidade Federal Do Rio Grande Do Sul. Avec la participation du Cirad.
Scientists at CIRAD and IRD are testing the use of medicinal plants as an alternative to antibiotics in fish farms. Between laboratory analyses and field research, this innovative work is aimed at limiting the global problem of antibiotic resistance and reviving traditional knowledge of small-scale family fish farming in Southeast Asia. Samira Sarter, a researcher at CIRAD, will present different approaches for a prudent use of antibiotics to the 2 500 participants at the AQUA 2018 international congress, to be held in Montpellier from 25 to 29 August.
Several research results have recently disproved the theory that Japanese encephalitis is limited to rural areas. The work in question, led by CIRAD, has provided new information on the mechanisms involved in the transmission, persistence and spread of this emerging disease. Half the world’s population is now under threat from Japanese encephalitis. Although vaccination remains the best way of protecting humans, according to researchers, various control methods, from targeted vaccination of farmed pigs to vector control, could restrict virus circulation effectively.
Optimising fish feed is the best way of reducing the economic and environmental costs of aquaculture. In order to select the tilapia that best process the feed given to them, researchers at CIRAD are closely studying feed efficiency. Recent research has shown that there is no correlation between feed efficiency and aggressive behaviour in Nile tilapia. These findings will be presented by Hugues de Verdal, a researcher at CIRAD, to the 2 500 participants at the AQUA 2018 international congress, to be held in Montpellier from 25 to 29 August.
At AQUA 2018, the world aquaculture congress to be held for the first time in Montpellier from 25 to 29 August, CIRAD will support FAO in the organisation of a special session on agroecology and its application to aquaculture on Saturday 25 August. Around 100 participants are expected out of the 2 500 people attending the congress, which will bring together 60 nationalities.
À l’occasion d’Aqua2018, congrès mondial d’aquaculture qui se tiendra pour la première fois du 25 au 29 août à Montpellier, le Cirad apporte son soutien à la FAO dans l’organisation d’une session spéciale sur l’agro-écologie appliquée à l’aquaculture le samedi 25 août. Une centaine de participants sont attendus sur les 2500 personnes du congrès qui rassemblera 60 nationalités.
An international research team, including scientists from CIRAD and the European Commission Joint Research Centre, has assessed the potential impact on primates of the expansion of oil palm cultivation in Africa. The authors of the study combined information on land suitability for oil palm cultivation with primate distribution, diversity and vulnerability. They concluded that it will be very difficult to reconcile oil palm development in Africa with biodiversity conservation. These results were published today in the American journal PNAS.
Une équipe internationale, comprenant des chercheurs du Cirad et du Centre Commun de Recherche de la Commission Européenne, vient d’évaluer l’impact potentiel sur les primates de l’expansion de la culture du palmier à huile en Afrique. Les auteurs de l’étude ont combiné des données sur l’adéquation des terres à cette culture avec des données sur la répartition, la diversité et la vulnérabilité des primates. Ils concluent que concilier développement du palmier à huile en Afrique et conservation de la biodiversité sera très difficile. Ces résultats sont publiés aujourd’hui dans la revue américaine PNAS.
Food systems are situated at the crossroads between the many issues and contradictions surrounding sustainable development: food and nutritional security, human and ecosystem health, natural resource renewal, climate change, territorial dynamics, political stability, and social justice. An international group of experts, including researchers from CIRAD, is calling for profound changes in food systems in order to meet the sustainable development goals (SDGs) set by the UN in 2015, and the terms of the Paris Agreement on climate. The authors propose a four-pillar strategy.
What forces enable trees to stand upright? To grow straight, plants need a motor system that controls their posture by generating forces to offset gravity. Scientists have long thought that this motor force was controlled only by the internal forces induced in wood. In a study published on 4 August 2018 in New Phytologist , researchers from the CNRS and CIRAD show that bark is also involved in the generation of mechanical stresses in several tree species.
Quelles forces permettent à un arbre de se tenir droit ? Pour pousser droites, les plantes ont besoin d'un système moteur qui contrôle leur posture en générant des forces pour lutter contre la gravité. Les scientifiques ont longtemps pensé que cette fonction motrice n'était contrôlée que par les forces internes du bois. Des chercheurs du CNRS et du Cirad montrent, dans une étude publiée le 4 août 2018 dans New Phytologist, que l’écorce est aussi impliquée dans la génération de contraintes mécaniques chez plusieurs espèces d’arbres.