Biodiversité

Twenty-five years since foundational publications on valuing ecosystem services for human well-being1,2, addressing the global biodiversity crisis3 still implies confronting barriers to incorporating nature’s diverse values into decision-making. These barriers include powerful interests supported by current norms and legal rules such as property rights, which determine whose values and which values of nature are acted on. A better understanding of how and why nature is (under)valued is more urgent than ever4. Notwithstanding agreements to incorporate nature’s values into actions, including the Kunming-Montreal Global Biodiversity Framework (GBF)5 and the UN Sustainable Development Goals6, predominant environmental and development policies still prioritize a subset of values, particularly those linked to markets, and ignore other ways people relate to and benefit from nature7. Arguably, a ‘values crisis’ underpins the intertwined crises of biodiversity loss and climate change8, pandemic emergence9 and socio-environmental injustices10.

When an expert volunteer is walking through a sunny meadow recording butterflies or searching by torchlight for newts, it can seem a long way from the negotiating halls of Convention on Biological Diversity meetings or from civil servants drafting new legislation.

But trends in species’ abundance, distribution or extinction risk, derived from monitoring and recording schemes, have wide influence in developing and monitoring environmental strategies, agreements and legislation.

Individual species status assessments underpin the lists of priority species within each of the four UK countries. For example, the Environment (Wales) Act 2016 gives Welsh ministers the responsibility ‘maintain and enhance’ species on the Section 7 list. However, many uses of species’ status information come from creating composite measures giving an overview of the status of a taxonomic group, habitat type or of species in general.

Alors que les baleines sont victimes de nombreuses collisions en Méditerranée, plusieurs pays européens envisagent la création d'une Zone maritime particulièrement vulnérable.