Produção Nacional
Revisado por pares
High proportion of cactus species threatened with extinction
2015; Nature Portfolio; Volume: 1; Issue: 10 Linguagem: Inglês
10.1038/nplants.2015.142
ISSN2055-0278
AutoresBárbara Goettsch, Craig Hilton‐Taylor, Gabriela Cruz-Piñón, James P. Duffy, Anne Frances, Héctor M. Hernández, Richard Inger, Caroline M. Pollock, Jan Schipper, Mariella Superina, Nigel P. Taylor, Marcelo F. Tognelli, Agustín M. Abba, Salvador Arias, Hilda Julieta Arreola-Nava, Marc A. Baker, Rolando T. Bárcenas, Duniel Barrios, Pierre Braun, Charles A. Butterworth, Alberto Búrquez, Fátima Cáceres, Miguel Cházaro‐Basáñez, Rafael Corral-Díaz, Mario Perea, Pablo Demaio, Williams A. Duarte de Barros, Rafael Durán, Luis Faúndez Yancas, Richard S. Felger, Betty Fitz-Maurice, Walter A. Fitz-Maurice, George D. Gann, Carlos Gómez-Hinostrosa, Luis R. Gonzales-Torres, M. Patrick Griffith, Pablo Guerrero, Barry E. Hammel, Kenneth Heil, José Guadalupe Hernández-Oria, Michael Hoffmann, Mario Ishiki Ishihara, Roberto Kiesling, João Larocca, José Luis León de la Luz, Christian R. Loaiza S., Martin Lowry, Marlon C. Machado, Lucas C. Majure, José Guadalupe Martínez-Ávalos, Carlos Martorell, Joyce Maschinski, Eduardo Méndez, Russell A. Mittermeier, Jafet M. Nassar, Vivian Negrón‐Ortíz, Luis J. Oakley, Pablo Ortega‐Baes, Ana Beatriz Pin Ferreira, Donald J. Pinkava, J. Mark Porter, Raúl Puente‐Martínez, José Roque, Patricio Pérez, Emiliano Sánchez Martínez, M. Kyle S. Smith, JOSHI M.C, Simon N. Stuart, José Luis Tapia Muñoz, Teresa Terrazas, Martin Terry, Marcelo Trevisson, Teresa Valverde, Thomas R. Van Devender, Mario Esteban Véliz-Pérez, Henrik Walter, Sarah A. Wyatt, Daniela C. Zappi, José Alejandro Zavala‐Hurtado, Kevin J. Gaston,
Tópico(s)Ecology and Vegetation Dynamics Studies
ResumoA high proportion of plant species is predicted to be threatened with extinction in the near future. However, the threat status of only a small number has been evaluated compared with key animal groups, rendering the magnitude and nature of the risks plants face unclear. Here we report the results of a global species assessment for the largest plant taxon evaluated to date under the International Union for Conservation of Nature (IUCN) Red List Categories and Criteria, the iconic Cactaceae (cacti). We show that cacti are among the most threatened taxonomic groups assessed to date, with 31% of the 1,478 evaluated species threatened, demonstrating the high anthropogenic pressures on biodiversity in arid lands. The distribution of threatened species and the predominant threatening processes and drivers are different to those described for other taxa. The most significant threat processes comprise land conversion to agriculture and aquaculture, collection as biological resources, and residential and commercial development. The dominant drivers of extinction risk are the unscrupulous collection of live plants and seeds for horticultural trade and private ornamental collections, smallholder livestock ranching and smallholder annual agriculture. Our findings demonstrate that global species assessments are readily achievable for major groups of plants with relatively moderate resources, and highlight different conservation priorities and actions to those derived from species assessments of key animal groups. Predictions suggest that a high proportion of plant species will be threatened with extinction in the near future. A global assessment of the threat status of cacti suggests that these iconic plants are amongst the most threatened taxonomic groups, with 31% of the 1,478 evaluated species at risk of extinction.
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