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betapart: an R package for the study of beta diversity Summary 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)
原核微生物群落随机性和确定性装配过程的计算方法 针对多个样本间的群落比较,则是基于MPD 和MNTD 使用βMPD 和βMNTD计算群落间谱系beta多样性,而对于群落间聚集或分散受确定性或随机性因素影响的判断则是基于NRI 和NTI 使用βNRI 和βNTI 计算群落间系统发育beta多样性的显著性。 以上参数均可在R 软件包“picante”中完成计算 (Webb et al ,2002)。本文将分别
Microsoft Word - 01沈泽昊. doc - Springer This search used a combination of search terms “landscape” and “biodiver-sity or diversity or species richness” in the title of papers published in SCI journals, and a combination of “ 景观” (means “landscape”) and “多样性 or 物种丰富度” (“diversity or species richness”) in the title of papers published in
地衣生物多样性 The fact is that within lichens the photobionts are housed by the fungal tissues, which effectively protect their photosynthetic partners from desert climate So, the drought resistance of the desert lichen E pusillum, is that of the lichen-forming fungus in fact Thus the previous study has indicated that the lichen-forming fungus Endocarpon pusillum has a much stronger drought resistant
标题 - cjae. net The results of multivariate analysis showed that soil microbial biomass carbon was the main factoraffecting the relative abundance of Basidiomycota and Zygomycotabased at the phylum level, whilesoil total phosphorus, available potassium, and available phosphorus were key factors driving thechanges of relative abundance of Ascomycota Therefore, popularizing of conservation tillage basedon the
基于 Rao-Stirling 指 Abstract Purpose significance Discovering the interdisciplinary literature is an important prerequisite for inter-disciplinary research Finding domain-related interdisciplinary publications from vast amounts of literature quickly and ac-curately will help researchers understand the new tendency of interdisciplinarity and identify the focal and hot themes of the field rapidly This paper