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Despite the increasing number of species assessed for extinction risk by the International Union for Conservation of Nature (IUCN) (163,040 species as of 2024), only about 1 in 1,000 have been downlisted due to genuine population improvement. Although this rare conservation achievement has been widely celebrated in several recent cases, some other downlisting decisions have met with controversy. A primary role of the IUCN is to assess extinction risk.

Mangroves provide numerous ecosystem services and are increasingly recognized as a natural climate solution. As a result, multiple recent initiatives have set ambitious mangrove restoration targets. However, there has been little research estimating the costs of achieving such targets, either site by site or in aggregate. Here, we spatially model the costs of restoring mangroves globally based on reported implementation costs from 249 restoration projects in 25 countries.

Ecosystems are characterized by interconnected structure and functions. A study published in the open-access journal PLOS Biology by Casey Benkwitt at Lancaster University, United Kingdom and colleagues suggests that restoring seabird populations via eradication of rats may help coral reefs by restoring nutrient connectivity in disrupted food chains.

Marine spatial planning (MSP), initially developed to address the needs of the global North, is gaining significant traction in Small Island Developing States (SIDS) and is hailed as a collaborative governance instrument for managing and optimizing the allocation of ocean space. Despite its growing adoption, there has been limited attention given to what is needed for MSP to be effective and collaborative in SIDS, which is struggling with issues of fragmented ocean governance, insufficient funding, data limitations, and ad hoc stakeholder engagement.

Natural and mixed World Heritage (WH) has generally not been a success in the Oceania region, due to limited support at all levels, unrealistic expectations about what WH can and cannot deliver, and a lack of resources to support all aspects of the WH process, particularly WH site management. This report assesses the implementation of the UNESCO World Heritage Convention in Oceania in relation to natural and mixed WH sites. It outlines recommendations which will, if applied, contribute to the more effective implementation of natural WH in the Pacific region. 

The sea turtle conservation community has made remarkable strides in globalscale priority setting in recent decades thanks to the collective efforts of nongovernmental organizations (NGOs), universities, and local communities.

Whales and dolphins rely on critical ocean habitats – areas where they feed, mate, give birth, nurse young, socialize, and migrate – for their survival. These areas are connected by migratory pathways known as blue corridors, essential to their life cycle. Safe passage along these corridors is crucial for maintaining healthy populations and ensuring whales can thrive across entire ocean basins.

The Pacific region has witnessed some of humanity's greatest achievements. It is a vibrant tapestry of diverse cultures and languages and holds immense global significance for its biodiversity and geodiversity. Despite this, it remains very poorly represented on the UNESCO World Heritage List. Ahead of the 3rd UN Ocean Conference, IUCN launches a new report which advocates for a substantial increase in resources to ensure that the heritage of Pacific Islanders is internationally recognized and fosters greater prosperity. 

BioTIME is designed especially for scientific synthesis studies with research questions about global biodiversity. We believe that data is valuable and should be made usable. Our database contains tables on species abundances across time and space, as well as important metadata about the taxa, habitat, and sampling methods. This is all made possible by our data contributors.

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Marine protected areas (MPAs) are essential for conserving marine biodiversity, ensuring sustainable fisheries, and maintaining the health of ocean ecosystems. They also provide economic and cultural benefits, including ecotourism opportunities and the preservation of livelihoods for coastal communities. However, merely establishing an MPA is generally insufficient to secure these protections and benefits.