[article] | Titre : | Ex situ collections and their potential for the restoration of extinct plants | | Type de document : | Livre | | Auteurs : | Thomas Abeli, Auteur ; Sarah Dalrymple, Auteur ; Sandrine Godefroid, Auteur ; Andrea Mondoni, Auteur ; Jonas V. Müller, Auteur ; Graziano Rossi, Auteur ; Simone Orsenigo, Auteur | | Année de publication : | 2020 | | Article en page(s) : | pp. 303-313 | | Langues : | Anglais | | Catégories : | [Thèmes] Banque de graines
[Thèmes] Conservation
[Thèmes] Jardin botanique
| | Mots-clés : | herbier introduction d'espèces réintroduction d'espèce collection de plantes conservation ex situ rétablissement de la diversité génétique des plantes conservation in situ | | Résumé : | "The alarming current and predicted species extinction rates have galvanized conservationists in their efforts to avoid future biodiversity losses, but for species extinct in the wild, few options exist. We posed the questions, can t hese species be restored, and, if so, what role can ex situ plant collections (i.e., botanic gardens, germplasm banks, herbaria) play in the recovery of plant genetic diversity? We reviewed the relevant literature to assess the feasibility of recovering lost plant genetic diversity with using ex situ material and the probability of survival of subsequent translocations. Thirteen attempts to recover species extinct in the wild were found, most of which used material preserved in botanic gardens and seed banks
One case of a locally extirpated population was recovered from herbarium material. Eight (60%) of these cases were successful or partially successful translocations of the focal species or population; the other 5 failed or it was too early to determine the outcome. Limiting factors of the use of ex situ source material for the restoration of plant genetic diversity in the wild include the scarcity of source material, low viability and reduced longevity of the material, low genetic variation, lack of evolution (especially for material stored in germplasm banks and herbaria), and socioeconomic factors. However, modern collecting practices present opportunities for plant conservation, such as improved collecting protocols and improved cultivation and storage conditions. Our findings suggest that all types of ex situ collections may contribute effectively to plant species conservation if their use is informed by a thorough understanding of the aforementioned problems. We conclude that the recovery of plant species currently classified as extinct in the wild is not 100% successful, and the possibility of successful reintroduction should not be used to justify insufficient in situ conservation." (source : auteurs) | | Type de publication : | périodique | | Référence biblio : | Abeli T., Dalrymple S., Godefroid S., Mondoni A., Müller J., Rossi G., Orsenigo S., 2020 - Ex situ collections and their potential for the restoration of extinct plants. Conservation Biology, 34 (2) : 303-313. | | ID PMB : | 69005 | | Permalink : | http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69005 |
in Conservation Biology > vol. 34, n°2 (Année 2020) . - pp. 303-313
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Affiner la rechercheAre re-introductions an effective way of mitigating against plant extinctions ? [en ligne] / Sarah Dalrymple (2011)
Ex situ collections and their potential for the restoration of extinct plants / Thomas Abeli in Conservation Biology, vol. 34, n°2 (Année 2020)
