2024-03-29T00:39:59Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1316042020-05-18T11:43:44Zcom_10261_88com_10261_8col_10261_341
Wang, Jianjun
Meier,Sandra
Soininen, Janne
Casamayor, Emilio O.
Pan, Feiyan
Tang, Xiangming
Yang, Xiangdong
Zhang, Yunlin
Wu, Qinglong
Zhou, Jizhong
Shen, Ji
2016-05-02T08:49:03Z
2016-05-02T08:49:03Z
2016
Ecography 39: 1-10 (2016)
0906-7590
http://hdl.handle.net/10261/131604
10.1111/ecog.02216
1600-0587
Although elevational gradients in microbial biodiversity have attracted increasing attention recently, the generality in the
patterns and underlying mechanisms are still poorly resolved. Further, previous studies focused mostly on species richness,
while left understudied evenness, another important aspect of biodiversity. Here, we studied the elevational patterns in
species richness and evenness of stream biofi lm bacteria and diatoms in six mountains in Asia and Europe. We also
reviewed published results for elevational richness patterns for soil and stream microbes in a literature analysis. Our results
revealed that even within the same ecosystem type (that is, stream) or geographical region, bacteria and diatoms showed
contrasting patterns in diversity. Stream microbes, including present stream data, tend to show signifi cantly increasing or
decreasing elevational patterns in richness, contrasting the fi ndings for soil microbes that typically showed nonsignifi cant
or signifi cantly decreasing patterns. In all six mountains for bacteria and in four mountains for diatoms, species richness
and evenness were positively correlated. Th e variation in bacteria and diatom richness and evenness were substantially
explained by anthropogenic driven factors, such as total phosphorus (TP). However, diatom richness and evenness were
also related to diff erent main drivers as richness was mostly related to pH, while evenness was most explained by TP. Our
results highlight the lack of consistent elevational biodiversity patterns of microbes and further indicate that the two facets
of biodiversity may respond diff erently to environmental gradients.
eng
closedAccess
Regional and global elevational patterns of microbial species richness and evenness
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