Local and regional factors influencing bacterial community assembly

被引:385
作者
Lindstrom, Eva S. [1 ]
Langenheder, Silke [1 ]
机构
[1] Uppsala Univ, Dept Ecol & Genet, S-75236 Uppsala, Sweden
来源
ENVIRONMENTAL MICROBIOLOGY REPORTS | 2012年 / 4卷 / 01期
基金
瑞典研究理事会;
关键词
DISSOLVED ORGANIC-MATTER; MICROBIAL COMMUNITIES; HELICOBACTER-PYLORI; BIOGEOGRAPHICAL PATTERNS; SURFACE SEDIMENTS; SPATIAL PROCESSES; ORAL-CAVITY; DIVERSITY; BACTERIOPLANKTON; ECOLOGY;
D O I
10.1111/j.1758-2229.2011.00257.x
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
The classical view states that microbial biogeography is not affected by dispersal barriers or historical events, but only influenced by the local contemporary habitat conditions (species sorting). This has been challenged during recent years by studies suggesting that also regional factors such as mass effect, dispersal limitation and neutral assembly are important for the composition of local bacterial communities. Here we summarize results from biogeography studies in different environments, i.e. in marine, freshwater and soil as well in human hosts. Species sorting appears to be the most important mechanism. However, this result might be biased since this is the mechanism that is easiest to measure, detect and interpret. Hence, the importance of regional factors may have been underestimated. Moreover, our survey indicates that different assembly mechanisms might be important for different parts of the total community, differing, for example, between generalists and specialists, and between taxa of different dispersal ability and motility. We conclude that there is a clear need for experimental studies, first, to clearly separate regional and local factors in order to study their relative importance, and second, to test whether there are differences in assembly mechanisms depending on different taxonomic or functional groups.
引用
收藏
页码:1 / 9
页数:9
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