Intensive field surveys in conservation planning priorities for cactus diversity in the Saltenian Calchaquíes Valleys [Argentina]

Cacti are a plant group of special conservation interest because of their economic value and the threats they face. In this paper, we studied cactus diversity in the Saltenian Calchaquíes Valleys, the most diverse region in Argentina. Our goals were: 1] to analyze diversity patterns, 2] to evaluate...

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Detalles Bibliográficos
Otros Autores: Ortega Baes, Pablo, Bravo, Silvia, Sajama, Jesús M., Sühring, Silvia, Arrueta, J., Sotola, Ezequiel, Alonso Pedano, Mariana, Godoy Bürki, Ana C., Frizza, N. R., Galíndez, Guadalupe, Gorostiague, P., Barrionuevo, Andrea, Scopel, Ana Leonor
Formato: Artículo
Lenguaje:Inglés
Materias:
CACTACEAE
ENDEMISM
RESERVE NETWORK
SPECIES RICHNESS
SURROGATE
CACTUS
CONSERVATION PLANNING
FIELD SURVEY
NATURE RESERVE
SPECIES CONSERVATION
SPECIES DIVERSITY
SURROGATE METHOD
VALUATION
ARGENTINA
CALCHAQUI VALLEYS
Acceso en línea:http://ri.agro.uba.ar/files/intranet/articulo/2012OrtegaBaes.pdf
LINK AL EDITOR
Aporte de:Registro referencial: Solicitar el recurso aquí
Biblioteca Central (FAUBA) de Universidad de Buenos Aires
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520 |a Cacti are a plant group of special conservation interest because of their economic value and the threats they face. In this paper, we studied cactus diversity in the Saltenian Calchaquíes Valleys, the most diverse region in Argentina. Our goals were: 1] to analyze diversity patterns, 2] to evaluate the effectiveness of the extant reserve network, 3] to select the complementary areas for cactus conservation, and 4] to evaluate the effectiveness of endemic cactus diversity as surrogate for all cactus diversity in this region. In our study, we recorded 41 cactus species, 22 of which were endemic. The most diverse cells of the survey grid were located in the High Monte ecoregion and in transition zones between this ecoregion and the Dry Chaco and Central Andean Puna ecoregions. Spatial congruence between species richness and endemism was high. The extant Saltenian Calchaquíes Valleys reserve network was effective for the cactus conservation because only three cells were necessary to maximize their protection with minimum representation. Endemic species had a good performance as surrogates of all cactus diversity. The present study is the first to define cactus diversity and to establish conservation strategies in this singular region. 
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