Arid
DOI10.1016/j.jaridenv.2010.12.007
Patterns of diversity of the Monte Desert small mammals across multiple spatial scales
Rodriguez, D.; Ojeda, R. A.
通讯作者Rodriguez, D.
来源期刊JOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
出版年2011
卷号75期号:5页码:424-431
英文摘要

The relationship between spatial scale and biodiversity patterns is a highly debated topic in ecology. We evaluated the partition of small mammal diversity at multiple spatial scales and analyzed protected areas in order to evaluate their role of protecting biodiversity at the regional scale. Diversity of small mammals in the Monte Desert was quantified at the regional biome scale (96,000 km(2)) (gamma) and partitioned at three spatial scales: aridity range (alpha(3),n = 6,16 000 km(2)), locality level (alpha(2),n = 18,2-3 ha), and habitat patch (alpha(1),n = 51,0.6 ha). We estimated their diversity using an additive approach with three indices (richness, Shannon-Weiner, Simpson). Diversity was higher than expected at the "between aridity range (beta(3))" scale, but lower at the "within-habitat scale (alpha(1))". Alpha was higher than beta diversity for most spatial scales; and at the regional scale protected areas preserved a higher biodiversity than unprotected ones. Our results are the first to partition the diversity of desert small mammals at multiple spatial scales and to support the hypotheses of an irregular scale dependence of alpha and beta diversity when increasing the spatial scales. They also highlight that a better understanding of biodiversity patterns is gained when several tools are integrated and combined at different spatial scales. (C) 2010 Elsevier Ltd. All rights reserved.


英文关键词Additive partitioning Biodiversity Desert system Multi-scale approach Protected areas Small mammals
类型Article
语种英语
国家Argentina
收录类别SCI-E
WOS记录号WOS:000288642300005
WOS关键词SPECIES-DIVERSITY ; REGIONAL PATTERNS ; GAMMA-DIVERSITY ; BETA-DIVERSITY ; COMMUNITIES ; BIODIVERSITY ; ARGENTINA ; RICHNESS ; LANDSCAPE ; ALPHA
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/168870
作者单位Consejo Nacl Invest Cient & Tecn, GiB, IADIZA, CCT Mendoza, RA-5500 Mendoza, Argentina
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Rodriguez, D.,Ojeda, R. A.. Patterns of diversity of the Monte Desert small mammals across multiple spatial scales[J],2011,75(5):424-431.
APA Rodriguez, D.,&Ojeda, R. A..(2011).Patterns of diversity of the Monte Desert small mammals across multiple spatial scales.JOURNAL OF ARID ENVIRONMENTS,75(5),424-431.
MLA Rodriguez, D.,et al."Patterns of diversity of the Monte Desert small mammals across multiple spatial scales".JOURNAL OF ARID ENVIRONMENTS 75.5(2011):424-431.
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