Yáñez-Arenas, A., M., Nakamura, A.W., Trites, H., Reyes-Bonilla, C.J., Hernández-Camacho, F., Galván-Magaña, J., Borcherding & P., Del Monte-Luna (2023). An integrated system to assess marine extinctions. John A. B. Claydon (Eds.), PLoS ONE. 18(10): e0293478. DOI: 10.1371/journal.pone.0293478.
Arturo Yáñez-Arenas 1, Miguel Nakamura 2, Andrew W. Trites 3, Héctor Reyes-Bonilla 4, Claudia Janetl Hernández-Camacho 5, Felipe Galván-Magaña 5, Jost Borcherding 6 y Pablo Del Monte-Luna 5
More than 20 global marine extinctions and over 700 local extinctions have reportedlyoccurred during the past 500 years. However, available methods to determine how many ofthese species can be confidently declared true disappearances tend to be data-demanding,time-consuming, and not applicable to all taxonomic groups or scales of marine extinctions(global [G] and local [L]). We developed an integrated system to assess marine extinctions(ISAME) that can be applied to any taxonomic group at any geographic scale. We appliedthe ISAME method to 10 case studies to illustrate the possible ways in which the extinctionstatus of marine species can be categorized as unverified, possibly extinct, or extinct. Of the10 case studies we assessed, the ISAME method concludes that 6 should be categorizedas unverified extinctions due to problems with species’ identity and lack of reliable evidencesupporting their disappearance (periwinkle—Littoraria flammea [G], houting—Coregonusoxyrinchus [G], long-spined urchin—Diadema antillarum [L], smalltooth sawfish—Pristispectinata [L], and largetooth sawfish—P. pristis [L]). In contrast, ISAME classified the Guadalupe storm-petrel (Oceanodroma macrodactyla [G]) and the lost shark (Carcharhinusobsolerus [G]) as possibly extinct because the available evidence indicates that their extinction is plausible—while the largetooth sawfish [L] and Steller’s sea cow (Hydrodamalis gigas[G]) were confirmed to be extinct. Determining whether a marine population or species isactually extinct or still extant is needed to guide conservation efforts and prevent further biodiversity losses.
Palabras clave: biodiversity loss; fisheries; IUCN
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