Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 0140-1963 |
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 |
推荐引用方式 GB/T 7714 | 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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