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Other effective area-based conservation measures (OECMs) have been a feature of global biodiversity targets since 2010 (Aichi Targets, Kunming-Montreal Global Biodiversity Framework), although the concept has only relatively recently been formally defined. Although uptake has been limited to date, there is much interest in identifying OECMs to contribute to the target of protecting at least 30% of terrestrial, freshwater and ocean areas by 2030, in conjunction with protected areas. Australia has a long history of protected area development across public, private and Indigenous lands, but consideration of OECMs in policy has recently begun in that country. We review principles proposed by the Australian Government for OECMs in Australia and highlight where these deviate from global guidance or established Australian area-based policy. We examined various land use categories and conservation mechanisms to determine the likelihood of these categories/mechanisms meeting the OECM definition, with a particular focus on longevity of the mechanism to sustain biodiversity. We identified that the number of categories/mechanisms that would meet the OECM definition is relatively small. A number of potentially perverse outcomes in classifying an area as an OECM are highlighted in order to guide proactive policy and program design to prevent such outcomes occurring. [ABSTRACT FROM AUTHOR]

Area-based conservation is a widely used approach for maintaining biodiversity, and there are ongoing discussions over what is an appropriate global conservation area coverage target. To inform such debates, it is necessary to know the extent and ecological representativeness of the current conservation area network, but this is hampered by gaps in existing global datasets. In particular, although data on privately and community-governed protected areas and other effective area-based conservation measures are often available at the national level, it can take many years to incorporate these into official datasets. This suggests a complementary approach is needed based on selecting a sample of countries and using their national-scale datasets to produce more accurate metrics. However, every country added to the sample increases the costs of data collection, collation and analysis. To address this, here we present a data collection framework underpinned by a spatial prioritization algorithm, which identifies a minimum set of countries that are also representative of 10 factors that influence conservation area establishment and biodiversity patterns. We then illustrate this approach by identifying a representative set of sampling units that cover 10% of the terrestrial realm, which included areas in only 25 countries. In contrast, selecting 10% of the terrestrial realm at random included areas across a mean of 162 countries. These sampling units could be the focus of future data collation on different types of conservation area. Analysing these data could produce more rapid and accurate estimates of global conservation area coverage and ecological representativeness, complementing existing international reporting systems. [ABSTRACT FROM AUTHOR]

Understanding the relative effectiveness and enabling conditions of different area‐based management tools is essential for supporting efforts that achieve positive biodiversity outcomes as area‐based conservation coverage increases to meet newly set international targets. We used data from a coastal social–ecological monitoring program in 6 Indo‐Pacific countries to analyze whether social, ecological, and economic objectives and specific management rules (temporal closures, fishing gear‐specific, species‐specific restrictions) were associated with coral reef fish biomass above sustainable yield levels across different types of area‐based management tools (i.e., comparing those designated as marine protected areas [MPAs] with other types of area‐based management). All categories of objectives, multiple combinations of rules, and all types of area‐based management had some sites that were able to sustain high levels of reef fish biomass—a key measure for coral reef functioning—compared with reference sites with no area‐based management. Yet, the same management types also had sites with low biomass. As governments advance their commitments to the Kunming–Montreal Global Biodiversity Framework and the target to conserve 30% of the planet's land and oceans by 2030, we found that although different types of management can be effective, most of the managed areas in our study regions did not meet criteria for effectiveness. These findings underscore the importance of strong management and governance of managed areas and the need to measure the ecological impact of area‐based management rather than counting areas because of their designation. [ABSTRACT FROM AUTHOR]

The biodiversity crisis necessitates a global implementation of effective, equitable, and feasible conservation strategies. Public land acquisitions (PLAs) for watershed protection can produce co‐benefits for basic human needs and biodiversity, but there are concerns that acquiring land is not scalable or may not protect threatened biodiversity. PLA programs are rare, allowing for limited opportunities to assess these concerns. We investigate a unique policy that has legally mandated PLAs in the Colombian Andes, a tropical biodiversity hotspot, since 1993. Using a novel dataset of >7000 PLAs, along with surveys and in‐person interviews, we study the scale, spatial allocation, and constraints on PLA implementation, and examine its potential conservation benefits. More than 300,000 ha were acquired through PLAs, but economic and institutional factors such as land cost, government income, and land tenure informality were main drivers in the degree of PLA implementation. Acquisitions were thus directed mostly toward cheaper, less threatened ecosystems. [ABSTRACT FROM AUTHOR]

Countering the impacts of habitat loss and fragmentation on ecosystems requires complementing conservation areas with Other Effective area-based Conservation Measures within landscapes to promote biodiversity and multiple ecosystem services (ES). However, critical knowledge gaps persist in where and how natural elements should be restored to improve landscape connectivity to simultaneously support, and reduce trade-offs between biodiversity and ES. In virtual landscape experiments that allow exploring the effects of spatial patterns systematically, we generated alternative landscape restoration scenarios aimed at fostering ecological connectivity. Scenarios varied in the location and size of restored areas complementing existing natural areas. We analysed the impact of these scenarios on four bundles representing distinct priorities of target ES and biodiversity-related values. As expected, all bundles were favoured by increasing restored area in the landscape, but they were promoted by different spatial configurations. Restoration scenarios that fostered high aggregation of natural habitats promoted biodiversity and cultural value -related bundles, while smaller natural elements dispersed throughout the landscape were more beneficial for the sustainable production and climate adaptation bundles. These contrasts were most pronounced at low restoration targets, where landscape configuration had greatest impacts on biodiversity and ecosystem processes. Effective spatial planning of restoration initiatives within landscapes should consider these trade-offs, along with context-specific constraints, when prioritizing areas for restoration or conservation. Our findings contribute to a more comprehensive understanding of how protected and restored areas can be integrated within landscapes to jointly support connectivity for both biodiversity and people. • Virtual landscape restoration options effects on four ecosystem services and biodiversity bundles. • High aggregation of restored elements promoted biodiversity and cultural value. • Low aggregation promoted sustainable production and climate adaptation. • These contrasts were most important at low restoration targets. • These results highlight the importance of configuration trade-offs in restoration planning. [ABSTRACT FROM AUTHOR]

Area-based approaches are a central component of global efforts to conserve biodiversity. While the focus of many countries has been mainly on protected areas, other effective area-based conservation measures (OECMS) have been accorded global recognition in the past decade as a vital complementary approach to protected areas. This recognition has been reemphasised in the Kunming-Montreal Global Biodiversity Framework adopted by parties to the Convention on Biological Diversity in December 2022, with its Target 3 ratchetting up area-based coverage targets to 30 per cent by 2030. A growing focus and reliance on OECMs to contribute towards achieving this target is anticipated. The international community has in the past few years introduced some guidance to identify, secure, manage, monitor and verify the anticipated long-term biodiversity conservation outcomes of OECMs. Some commentators have argued for domestic legal intervention to complement this general international guidance. The South African Government has recognised the potential contribution of OECMs towards the achievement of domestic and global area-based biodiversity targets in its National Protected Areas Expansion Strategy (2018) but has alluded to the need for legal intervention to ensure that they achieve positive and sustained long-term outcomes for the in situ conservation of biodiversity. Some domestic commentators have highlighted the strong link between biodiversity stewardship (particularly conservation areas) and OECMs, advocating that these conservation areas should form the priority focus of domestic efforts to identify OECMs. This article scopes this potential link and specifically considers whether the current domestic legal and policy framework applicable to these conservation areas is sufficiently robust to ensure that only appropriate areas are identified as OECMs and that once recognised, they are governed and effectively managed in the long term. It highlights several frailties of the existing framework and drawing from anticipated legal reform in the Western Cape relating to biodiversity stewardship, it proposes a possible model for future national legislation regulating OECMs. [ABSTRACT FROM AUTHOR]

Sacred natural sites (SNSs) are examples of community‐level governance for sustainable management of natural resources, which can greatly benefit nature conservation. However, the lack of a comprehensive understanding of the role of SNSs in conservation has resulted in overly simplistic classifications of SNSs that challenge current SNS research and conservation practice. Here, we propose an SNS classification framework based on the types and levels of material and spiritual services that SNSs provide, and applied this framework in the Khawa Karpo, an important sacred area in the Tibetan region of China based on detailed field surveys conducted from 2000 to 2004 and 2015 to 2017 that addressed six types of SNSs, including sacred mountains, Ri Vgags, sacred lakes, sacred rocks, sacred caves, and sacred trees. We found that SNSs in this region played a crucial role in sustaining traditional cultures and providing material services. Adoption of our classification framework will assist with the development of management strategies and targeted conservation actions for individual SNSs, thus improving conservation levels particularly in the Tibetan region. [ABSTRACT FROM AUTHOR]

Designating protected and conserved areas is a critical component of biodiversity conservation. The 10th Convention on Biological Diversity (CBD) in 2010 set global targets for the areal extent of protected areas (PAs) that were met partially in 2020, yet a new, more ambitious target is needed to halt ongoing global biodiversity loss. China recently introduced a national Ecological Conservation Redline policy, which aims to ensure no net change in land cover and no net loss of biodiversity or degradation of ecosystem services within areas that are critical for maintaining ecological safety and functions. Enacting this policy could achieve ancillary conservation outcomes even where conservation is not the primary objective, thus meeting CBD's definition of "other effective area‐based conservation measures" (OECM). By comparing the Ecological Conservation Redline boundaries with important coastal waterbird sites in China, we found that three times more sites could be conserved under the new redline policy compared to the national nature reserve system alone. This indicates that considering the redline policy approach as a form of OECM is a promising pathway to expand the areal coverage of PAs and conserve biodiversity outside currently designated PAs, providing a model that could be adopted around the world. [ABSTRACT FROM AUTHOR]

As the Earth's changing climate has deepened into a climate crisis, the Arctic region has emerged as one of the clearest indicators of the scale and pace of that change. As the ice melts, opportunities are expanding to exploit the Arctic's oil and gas reserves, precious metals, fish stocks and maritime routes. Increased access and development will inevitably generate "system-wide environmental impacts" and will pose novel management challenges for the Arctic states. In the quest to find an effective balance between competing ocean activities and actors, marine protected areas (MPAs) and other effective area-based conservation measures (OECMs) have emerged as indispensable tools to achieve ocean health, including in the Arctic. After first introducing these concepts, this article will discuss the Canadian and Russian domestic regimes for the establishment of MPAs and OECMs. The conclusion will then offer some insights into the key challenges confronting both states in the creation of effective networks of MPAs and OECMs in their Arctic regions. [ABSTRACT FROM AUTHOR]

Work on the post‐2020 global biodiversity framework is now well advanced and will outline a vision, goals, and targets for the next decade of biodiversity conservation and beyond. For the effectiveness of Protected areas and Other Effective area‐based Conservation Measures, an indicator has been proposed for "areas meeting their documented ecological objectives." However, the Convention on Biological Diversity (CBD) has not identified or agreed on what data should inform this indicator. Here we draw on experiences from the assessment of protected area effectiveness in the CBD's previous strategic plan to provide recommendations on the essential elements related to biodiversity outcomes and management that need to be captured in this updated indicator as well as how this could be done. Our proposed protected area effectiveness indicators include a combination of remotely derived products for all protected areas, combined with data from monitoring of both protected area management and trends in species and ecosystems based on field observations. Additionally, we highlight the need for creating a digital infrastructure to operationalize national‐level data‐capture. We believe these steps are critical and urge the adoption of suitable protected area effectiveness indicators before the post‐2020 framework is agreed in 2021. [ABSTRACT FROM AUTHOR]

The Convention on Biological Diversity (CBD) adopted the Strategic Plan (SP) for Biodiversity 2011-2020 in Nagoya, Japan in October 2010. The SP comprises five strategic goals and 20 Aichi Biodiversity Targets; these targets were agreed for implementation by the CBD signatory countries. The Aichi Biodiversity Target 6 states that by 2020 all fish and invertebrate stocks and aquatic plants are managed and harvested sustainably. Even though substantial progress has been made towards achieving this target, globally, a third of the marine fish stocks are overfished and many fisheries are causing unsustainable levels of bycatch of non-target species and are damaging marine habitats. The Global Biodiversity Outlook-5, 2020 (GBO-5) report says that the biodiversity is declining at an unprecedented rate and the pressures driving this decline are intensifying and none of the Aichi Biodiversity Targets is fully met. The present study has reviewed the implementation of the global Aichi Biodiversity Targets by India and other countries focusing on fisheries sector and has brought out good practices adopted by the countries in implementing these targets. [ABSTRACT FROM AUTHOR]

Private land conservation areas (PLCAs) have become critical for achieving global conservation goals, but we lack understanding of how and when these areas respond to global pressures and opportunities. In southern Africa, where many PLCAs rely on trophy hunting as an income‐generating strategy, a potential ban on trophy hunting locally or abroad holds unknown consequences for the future conservation of these lands. In this study, we investigate the consequences of a potential trophy hunting ban in PLCAs in two biodiversity hotspots in South Africa's Eastern and Western Cape provinces. We used semistructured interviews with PLCA managers and owners to elicit perceived impacts of an internationally imposed trophy hunting ban on conservation activities in PLCAs, and to probe alternative viable land uses. The majority of interviewees believed that both the economic viability of their PLCA and biodiversity would be lost following a hunting ban. Owners would primarily consider transitioning to ecotourism or livestock farming, but these options were constrained by the social‐ecological context of their PLCA (e.g., competition with other PLCAs, ecological viability of farming). Our results suggest that a trophy hunting ban may have many unintended consequences for biodiversity conservation, national economies, and the livelihoods of PLCA owners and employees. Along with similar social‐ecological studies in other areas and contexts, our work can inform policy decisions around global trophy hunting regulation. [ABSTRACT FROM AUTHOR]

Climate change and global biodiversity loss call for clean energy production systems with minimised ecological impacts. Offshore wind energy production will become one of the main uses of global marine spaces within next decades. Offshore wind turbine foundations can function as artificial reefs but it is unknown if these capabilities apply to different foundation types. We collected field data on Atlantic cod (Gadus morhua), a species under pressure in the southern North Sea, around three foundation types to assess these capabilities. Catch rates showed that monopile foundations with rock protection on the seabed were able to attract significantly more fish than monopile foundations with sandbag protection and jacket foundations. Fish densities varied on small scales meaning that reef effects were spatially restricted. This implies that offshore wind energy production can be used as tool to combine climate change mitigation with local biodiversity conservation but that a consideration of the wind farm design is required. • Offshore wind farms have been shown to attract fish. • Atlantic cod is an endangered species in the southern North Sea. • Catch rates of Atlantic cod highest around monopiles with rock protection. • Monopiles with sandbag protection and jacket foundations attracted significantly less cod. • Wind farm design can be adapted to meet conservation needs and produce green energy. [ABSTRACT FROM AUTHOR]

Area-Based Management Tools (ABMTs) are spatial instruments for conservation and managing different forms of ocean use. A multitude of ABMTs exists in marine areas within and beyond national jurisdiction, ranging from tools for the regulation of specific human activities (e.g. fisheries, shipping, or mining) to cross-sectoral tools (e.g. such as marine protected areas, MPAs, and marine spatial planning, MSP). By applying expert elicitation and reviewing scientific and grey literature we evaluate the contribution of ABMTs to sustainable development goals (SDGs) as set out under the United Nations 2030 Agenda for Sustainable Development, including for SDG 14 that directly addresses the conservation and sustainable use of oceans, seas, and marine resources. We find that fisheries-related and conservation-related ABMTs, and MSP offer the greatest potential contributions to SDG 14 and to SDGs in general. Moreover, there is high complementarity and synergy among different ABMTs for most SDG 14 targets and other SDGs, with the exception of SDG target 14.6 Prohibit fisheries subsidies and SDG 7 Affordable and clean energy. We find that some ABMTs contribute directly to goal attainment, while others contribute in more nuanced or even unexpected ways. Furthermore, context-specific factors that relate to political and legal factors, enforceability, transparency, governance structure, and inclusivity are crucial for unlocking the full potential of ABMTs of attaining multiple SDGs, as shown through examples. The major challenge to face in the next decade is ensuring durable and equitable outcomes from ABMT implementation by coordinating ABMT initiatives established by different organisations and responsible authorities. It is also critical that outcomes are monitored and evaluated across environmental, social, economic, governance, and health dimensions, with indicators addressing management effectiveness and not only ABMT area coverage. [Display omitted] • Qualitative assessment of Area-Based Management Tools (ABMT) contribution to SDGs. • Expert and literature review provided assessment with evidence from existing cases. • We found high complementarity and synergy among different ABMTs for most SDGs. • Fishery ABMTs, MPAs and MSP contribute mostly to SDG 14 Life Below Water. • All ABMTs can significantly contribute towards SDG 13 Climate action. [ABSTRACT FROM AUTHOR]