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ABSTRACT: Background
The redundancy hypothesis predicts that the species redundancy in a plant community enhances community stability. However, numerous studies in recent years questioned the positive correlation between redundancy and stability.Methodology
We explored the relationship between the species redundancy, functional redundancy and community stability in typical steppe grassland in Northern China by sampling grassland vegetation along a gradient of resource availability caused by micro-topography. We aimed to test whether community redundancy enhanced community stability, and to quantify the relative importance of species redundancy and functional redundancy in maintaining community stability.Results
Our results showed that the spatial stability of plant community production increases with increased supply of soil resources, and the functional redundancy instead of species diversity or species redundancy is correlated with the community stability. Our results supported the redundancy hypothesis and have implications for sustainable grassland management.
SUBMITTER: Kang S
PROVIDER: S-EPMC4689422 | biostudies-literature | 2015
REPOSITORIES: biostudies-literature
Kang Saruul S Ma Wenjing W Li Frank Yonghong FY Zhang Qing Q Niu Jianming J Ding Yong Y Han Fang F Sun Xiaoli X
PloS one 20151223 12
<h4>Background</h4>The redundancy hypothesis predicts that the species redundancy in a plant community enhances community stability. However, numerous studies in recent years questioned the positive correlation between redundancy and stability.<h4>Methodology</h4>We explored the relationship between the species redundancy, functional redundancy and community stability in typical steppe grassland in Northern China by sampling grassland vegetation along a gradient of resource availability caused b ...[more]