Genetic diversity targets and indicators in the CBD post-2020 Global Biodiversity Framework must be improved

作者：Sean Hoban, Michael W. Bruford, Josephine D’Urban Jackson, Margarida Lopes-Fernandes, Myriam Heuertz, Paul A. Hohenlohe, Ivan Paz‐Vinas, Per Sjögren‐Gulve, Gernot Segelbacher, Cristiano Vernesi, Sally N. Aitken, Laura D. Bertola, Paulette Bloomer, Martin F. Breed, Hernando Rodríguez‐Correa, W. Chris Funk, Catherine E. Grueber, Margaret E. Hunter, Rodolfo Jaffé, Libby Liggins, Joachim Mergeay, Farideh Moharrek, David O’Brien, Rob Ogden, Clarisse Palma‐Silva, Jennifer C. Pierson, Uma Ramakrishnan, Murielle Simo‐Droissart, Naoki Tani, Lisette P. Waits, Linda Laikre · 发表于：Biological Conservation · 年份：2020 · DOI：10.1016/j.biocon.2020.108654 · 被引用次数：618 · 研究领域：Genetically Modified Organisms Research、Genetic diversity and population structure、Genetic and Environmental Crop Studies

The 196 parties to the Convention on Biological Diversity (CBD) will soon agree to a post-2020 global framework for conserving the three elements of biodiversity (genetic, species, and ecosystem diversity) while ensuring sustainable development and benefit sharing. As the most significant global conservation policy mechanism, the new CBD framework has far-reaching consequences- it will guide conservation actions and reporting for each member country until 2050. In previous CBD strategies, as well as other major conservation policy mechanisms, targets and indicators for genetic diversity (variation at the DNA level within species, which facilitates species adaptation and ecosystem function) were undeveloped and focused on species of agricultural relevance. We assert that, to meet global conservation goals, genetic diversity within all species, not just domesticated species and their wild relatives, must be conserved and monitored using appropriate metrics. Building on suggestions in a recent Letter in Science (Laikre et al., 2020) we expand argumentation for three new, pragmatic genetic indicators and modifications to two current indicators for maintaining genetic diversity and adaptive capacity of all species, and provide guidance on their practical use. The indicators are: 1) the number of populations with effective population size above versus below 500, 2) the proportion of populations maintained within species, 3) the number of species and populations in which genetic div...