Biodiversité

L'agence souligne le besoin pressant de carburants plus propres, de solutions numériques et d'une transition équitable pour lutter contre les émissions continues de carbone et l'incertitude réglementaire qui règne cette industrie.

Oceans play a key role in energy storage in the global Earth–Ocean–Atmosphere system. Within this framework, the knowledge of past evolution and future trends of sea surface temperature (SST) is crucial for the future climate scenarios.

The IUCN Red List of Threatened Species is essential for practical and theoretical efforts to protect biodiversity. However, species classified as “Data Deficient” (DD) regularly mislead practitioners due to their uncertain extinction risk. Here we present machine learning-derived probabilities of being threatened by extinction for 7699 DD species, comprising 17% of the entire IUCN spatial datasets. Our predictions suggest that DD species as a group may in fact be more threatened than data-sufficient species. We found that 85% of DD amphibians are likely to be threatened by extinction, as well as more than half of DD species in many other taxonomic groups, such as mammals and reptiles.

Cette enquête fait partie du projet MARCO-BOLO  visant à renforcer l’apport de la surveillance de la biodiversité pour les décisions à l’intérieur et au-delà de l’UE et de ses Etats-membres.
Nous souhaitons comprendre les données dont ont besoin les différentes personnes travaillant dans la conservation et la gestion durable de la biodiversité.

Le jeudi 08 juin sera célébré la Journée mondiale de l'océan.

A cette occasion, l'OiEau a souhaité mettre à votre disposition un document synthétique présentant, en quelques chiffres significatifs, l'impact de l'activité humaine sur ces vastes étendues d'eau salée qui couvrent une grande partie de la surface du globe terrestre.

Despite substantial progress in understanding global biodiversity loss, major taxonomic and geographic knowledge gaps remain. Decision makers often rely on expert judgement to fill knowledge gaps, but are rarely able to engage with sufficiently large and diverse groups of specialists. To improve understanding of the perspectives of thousands of biodiversity experts worldwide, we conducted a survey and asked experts to focus on the taxa and freshwater, terrestrial, or marine ecosystem with which they are most familiar. We found several points of overwhelming consensus (for instance, multiple drivers of biodiversity loss interact synergistically) and important demographic and geographic differences in specialists’ perspectives and estimates.