betapart: an R package for the study of beta diversity
betapart: an R package for the study of beta diversity
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DOI：
10.1111/j.2041-210x.2012.00224.x
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发表时间：
2012-10-01
影响因子：
6.6
通讯作者：
Orme, C. David L.
中科院分区：
文献类型：
--
作者：
Baselga, Andres;Orme, C. David L.
1.贝塔多样性，即站点间物种组成的变化，可能是站点间物种替换(周转)和站点间物种丧失(嵌套性)的结果。2.提出了一个用于计算索伦森指数或贾卡德指数以及它们各自的营业额和嵌套度分量的完全相异度的R程序包。3.使用考虑到几个地点的成分异质性的多地点相异度量或提供考虑相异的多变量结构的距离矩阵的成对度量，可以使用Betparate来评估贝塔多样性的空间模式。4.Betparate还允许计算组合成分及其周转和嵌套成分的时差模式。5.使用一揽子计划中的数据进行了几个实例分析，以说明将Beta多样性的周转率和嵌套性部分分开，以推断生物多样性格局背后的不同机制的相关性。
1. Beta diversity, that is, the variation in species composition among sites, can be the result of species replacement between sites (turnover) and species loss from site to site (nestedness). 2. We present betapart, an R package for computing total dissimilarity as Sorensen or Jaccard indices, as well as their respective turnover and nestedness components. 3. betapart allows the assessment of spatial patterns of beta diversity using multiple-site dissimilarity measures accounting for compositional heterogeneity across several sites or pairwise measures providing distance matrices accounting for the multivariate structure of dissimilarity. 4. betapart also allows computing patterns of temporal difference in assemblage composition, and its turnover and nestedness components. 5. Several example analyses are shown, using the data included in the package, to illustrate the relevance of separating the turnover and nestedness components of beta diversity to infer different mechanisms behind biodiversity patterns.