Target 4
Faire cesser l'extinction des espèces, protéger la diversité génétique et gérer les conflits entre l'homme et la faune
Prendre des mesures urgentes en matière de gestion en vue de faire cesser l’extinction d’origine humaine des espèces menacées connues et d’assurer leur rétablissement et leur conservation, en particulier les espèces menacées, afin de réduire significativement leur risque d’extinction ainsi que de sauvegarder et de rétablir la diversité génétique au sein des populations d’espèces indigènes, sauvages et domestiquées et entre elles, en vue de préserver leur potentiel d’adaptation, notamment grâce à des mesures de conservation in situ et ex situ et à des méthodes de gestion durable, et gérer efficacement les interactions entre l’homme et la faune de manière à limiter les conflits liés à leur coexistence.
Prendre des mesures urgentes en matière de gestion en vue de faire cesser l’extinction d’origine humaine des espèces menacées connues et d’assurer leur rétablissement et leur conservation, en particulier les espèces menacées, afin de réduire significativement leur risque d’extinction ainsi que de sauvegarder et de rétablir la diversité génétique au sein des populations d’espèces indigènes, sauvages et domestiquées et entre elles, en vue de préserver leur potentiel d’adaptation, notamment grâce à des mesures de conservation in situ et ex situ et à des méthodes de gestion durable, et gérer efficacement les interactions entre l’homme et la faune de manière à limiter les conflits liés à leur coexistence.
Justification
PAME
Des actions ciblées sont essentielles pour prévenir les extinctions, inverser les déclins et permettre le rétablissement de nombreuses espèces, en plus d’inverser les menaces et les facteurs de déclin. Sans de telles actions, le risque d’extinction de plus d’un tiers des espèces menacées ne serait pas suffisamment réduit, même si toutes les autres cibles du CMB étaient pleinement mises en œuvre. Les actions spécifiques aux espèces comprennent la gestion des habitats, la réintroduction et le renforcement, les translocations visant à étendre les aires de répartition, la reproduction ou la propagation en captivité, l’alimentation supplémentaire, la fourniture de sites de reproduction, etc. La conservation de la diversité génétique des espèces sauvages est également importante pour leur persistance à long terme. Les conflits entre humains et espèces sauvages augmentent et menacent non seulement les espèces, mais aussi le développement durable, la sécurité alimentaire, des vies humaines et le bien-être, avec des impacts ressentis le plus souvent par les plus vulnérables et les plus marginalisés de la société. Des réponses intégrées sont nécessaires à grande échelle pour minimiser et gérer les conflits Homme-faune sauvage, en favorisant la coexistence entre la faune sauvage et les personnes.
GSAP SKILLS
The GSAP identifies 7 headline actions in support of Target 4: Assessing and monitoring the status of species, recovery planning, preventing extinction and promoting recovery, ex situ conservation, maintaining genetic diversity, reducing and managing human-wildlife conflict, and learning from conservation success.
An essential task at national level is to identify, and assess the status of, priority species (endemic and near-endemic, threatened, those of socio-economic importance). Countries may consider establishing a IUCN SSC National Species Specialist Group or a National Species Committee / Working Group composed of experts representing all the major taxonomic groups. A few countries have gone one stage further and developed a National Species Strategy to guide species conservation at national level.
Actions
4.1. Assess the conservation status of all species and identify those needing targeted recovery actions.
4.1. Assess the conservation status of all species and identify those needing targeted recovery actions.
Knowledge of the distribution, abundance, trends, and threats provides an essential baseline for conservation planning and action. The primary tools for assessing the status of species are the IUCN Red List of Threatened Species, the Green Status of Species, and the Living Planet Index. Species monitoring is supported by several technical tools.
4.2. Develop and implement a recovery plan (single species, multi-species, site-based, or threat-based) for all species that require one.
4.2. Develop and implement a recovery plan (single species, multi-species, site-based, or threat-based) for all species that require one.
Recovery plans provide the overall framework for species conservation, coordinate action by all stakeholders, reduce duplication, and aid fundraising. Plans may be developed for a single species, several species, a whole taxonomic group, a landscape, ecosystem, or in response to a specific threat and designed for use at global, regional, national, or local level. Key principles of species planning are that it should be inclusive, participatory, and based on sound science. Plans commonly include a long-term Vision, and a Goal, Objectives, and Actions arranged in a hierarchical structure, presented in a logframe format, including timescales, indicators, and the lead responsibilities for implementation.
Many species plans have already been developed which can be used a basis for development of a National Action Plan, a national work plan, or to inform National Biodiversity Strategy and Action Plans. Examples of global-level plans include the Global Strategy for Plant Conservation, which has been adopted by the CBD, and the Amphibian Action Plan.
Guidance on develop new species recovery plans, training courses, and advice are available from SSC and other sources.
4.3. Enact measures to prevent extinctions and recover threatened species.
4.3. Enact measures to prevent extinctions and recover threatened species.
In addition to reversing all the threats and drivers of decline, at least 33% of species are estimated to require specific, targeted actions to prevent their extinction, reverse declines, or enable recovery. Species-specific actions include reintroduction and reinforcement, translocation to expand range, captive breeding or propagation, habitat management, supplementary feeding, provision of breeding sites, and others. There are many examples of species that have been saved from extinction or have had their status improved through effective conservation action. These successful efforts need to be replicated and scaled up to all species that need them.
4.4. Maintain or establish coordinated ex-situ breeding or propagation programmes for all species that require them.
4.4. Maintain or establish coordinated ex-situ breeding or propagation programmes for all species that require them.
Zoos, aquaria, botanic gardens, and seed banks contribute significantly to species conservation by holding “insurance” populations, preserving genetic material, providing stock for reintroductions and reinforcement operations and through their educational and fundraising roles.
4.5. Minimise loss of genetic diversity across all threatened species and retain at least 95% gene diversity in species where it is already depleted.
4.5. Minimise loss of genetic diversity across all threatened species and retain at least 95% gene diversity in species where it is already depleted.
Assessing and monitoring the genetic diversity of wild species has been relatively neglected until recently. Major advances in genetic and now genomic research have significantly increased the power of molecular analyses and reduced the costs. DNA analysis relies on well-equipped laboratories and trained scientific staff. Therefore, several monitoring and reporting approaches have been developed that use proxy measures where DNA data are not available. Such proxies may include effective population size, range contraction, fragmentation, and others. The headline CBD Indicator for the genetic component of Target 4 is “the proportion of the populations of a species that have an effective population size >500”. A recent study compared five proposed methods for monitoring genetic diversity, and recommended a scorecard system as a unified reporting mechanism by (O’Brien et al. 2022).
4.6. Reduce and manage human-wildlife conflict and its drivers through a holistic, cross-sectoral approach.
4.6. Reduce and manage human-wildlife conflict and its drivers through a holistic, cross-sectoral approach.
As human populations and their need for living space and resources continue to grow, interactions between people and wildlife become more widespread, potentially leading to increased human-wildlife conflict. such as damage to crops, livestock, property, health, and even loss of life. Retaliatory killing of the species involved can lead to decline and local extinction. Furthermore, the impacts of HWC on food security and livelihoods fall mainly on disadvantaged and marginalised rural communities. Resolving these conflicts involves both conservation and sustainable development experts.
4.7. Determine factors governing species conservation success.
4.7. Determine factors governing species conservation success.
Highlighting successful conservation outcomes is essential in order to show that species, habitats, and ecosystems can be restored; to identify the key factors behind success and apply them elsewhere, and to demonstrate decision-makers, donors, and the public that “conservation works”.