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

Sean Hoban 1 Michael Bruford 2 Josephine d'Urban Jackson 2 Margarida Lopes-Fernandes 3 Myriam Heuertz 4 Paul Hohenlohe 5 Ivan Paz-Vinas 6 Per Sjögren-Gulve 7 Gernot Segelbacher 8 Cristiano Vernesi 9 Sally Aitken 10 Laura Bertola 11 Paulette Bloomer 12 Martin Breed 13 Hernando Rodríguez-Correa 14 W. Chris Funk 15 Catherine Grueber 16 Margaret Hunter 17 Rodolfo Jaffe 18 Libby Liggins 19 Joachim Mergeay 20, 21 Farideh Moharrek 22, 23 David O'Brien 24 Rob Ogden 25 Clarisse Palma-Silva 26 Jennifer Pierson 27 Uma Ramakrishnan 28 Murielle Simo-Droissart 29 Naoki Tani 30 Lisette Waits 5 Linda Laikre 31
Abstract : 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 diversity is monitored using DNA-based methods. We also present and discuss Goals and Action Targets for post-2020 biodiversity conservation which are connected to these indicators and underlying data. These pragmatic indicators and goals have utility beyond the CBD; they should benefit conservation and monitoring of genetic diversity via national and global policy for decades to come.
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https://hal.inrae.fr/hal-02934625
Déposant : Marion Desailly <>
Soumis le : mercredi 9 septembre 2020 - 15:03:33
Dernière modification le : jeudi 10 septembre 2020 - 03:25:40

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Sean Hoban, Michael Bruford, Josephine d'Urban Jackson, Margarida Lopes-Fernandes, Myriam Heuertz, et al.. Genetic diversity targets and indicators in the CBD post-2020 Global Biodiversity Framework must be improved. Biological Conservation, Elsevier, 2020, 248, pp.1-11. ⟨10.1016/j.biocon.2020.108654⟩. ⟨hal-02934625⟩

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