Arid
DOI10.1017/S0030605310001079
Areas of endemism of Cactaceae and the effectiveness of the protected area network in the Chihuahuan Desert
Hernandez, Hector M.; Gomez-Hinostrosa, Carlos
通讯作者Hernandez, Hector M.
来源期刊ORYX
ISSN0030-6053
出版年2011
卷号45期号:2页码:191-200
英文摘要

We used distribution data of 121 cactus species endemic to the Chihuahuan Desert to test the effectiveness of the region’s protected area network. The analysis of species distribution using a 30’ latitude x 30’ longitude grid facilitated the identification and categorization of areas of endemism. We found a low degree of coincidence between protected areas and the areas of cactus endemism, and only 63.6% of the 121 species occur in protected areas. A complementarity analysis showed that 10 of the protected areas contain the 77 species that occur in protected areas. The four top priority areas protect 65 (84.4%) of these 77 species The 44 unprotected species are mainly micro-endemic and taxonomically distinctive taxa widely scattered in the region. The complementarity analysis applied to these species showed that all of them can be contained in a minimum of 24 grid squares, representing 32.9% of the total area occupied. Their strong spatial dispersion, along with their narrow endemism, is a major conservation challenge. We conclude that the current protected area network is insufficient to protect the rich assemblage of cacti endemic to the Chihuahuan Desert. Conservation efforts in this region should be enhanced by increasing the effectiveness of the already existing protected areas and by the creation of additional protected areas, specifically micro-reserves, to provide refuge for the unprotected species.


英文关键词Biodiversity conservation Cactaceae complementarity endemism gap species Mexico
类型Article
语种英语
国家Mexico
收录类别SCI-E
WOS记录号WOS:000290527700011
WOS关键词SOUTH-AFRICA ; DIVERSITY ; CONSERVATION ; REGION ; MEXICO ; PATTERNS ; CACTI
WOS类目Biodiversity Conservation ; Ecology
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构Universidad Nacional Autónoma de México
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/169847
作者单位Univ Nacl Autonoma Mexico, Dept Bot, Inst Biol, Mexico City 04510, DF, Mexico
推荐引用方式
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Hernandez, Hector M.,Gomez-Hinostrosa, Carlos. Areas of endemism of Cactaceae and the effectiveness of the protected area network in the Chihuahuan Desert[J]. Universidad Nacional Autónoma de México,2011,45(2):191-200.
APA Hernandez, Hector M.,&Gomez-Hinostrosa, Carlos.(2011).Areas of endemism of Cactaceae and the effectiveness of the protected area network in the Chihuahuan Desert.ORYX,45(2),191-200.
MLA Hernandez, Hector M.,et al."Areas of endemism of Cactaceae and the effectiveness of the protected area network in the Chihuahuan Desert".ORYX 45.2(2011):191-200.
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