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      Resistance, resilience, and redundancy in microbial communities

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      Proceedings of the National Academy of Sciences
      Proceedings of the National Academy of Sciences

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          Abstract

          Although it is generally accepted that plant community composition is key for predicting rates of ecosystem processes in the face of global change, microbial community composition is often ignored in ecosystem modeling. To address this issue, we review recent experiments and assess whether microbial community composition is resistant, resilient, or functionally redundant in response to four different disturbances. We find that the composition of most microbial groups is sensitive and not immediately resilient to disturbance, regardless of taxonomic breadth of the group or the type of disturbance. Other studies demonstrate that changes in composition are often associated with changes in ecosystem process rates. Thus, changes in microbial communities due to disturbance may directly affect ecosystem processes. Based on these relationships, we propose a simple framework to incorporate microbial community composition into ecosystem process models. We conclude that this effort would benefit from more empirical data on the links among microbial phylogeny, physiological traits, and disturbance responses. These relationships will determine how readily microbial community composition can be used to predict the responses of ecosystem processes to global change.

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          Author and article information

          Journal
          Proceedings of the National Academy of Sciences
          Proceedings of the National Academy of Sciences
          Proceedings of the National Academy of Sciences
          0027-8424
          1091-6490
          August 14 2008
          August 12 2008
          August 11 2008
          August 12 2008
          : 105
          : Supplement 1
          : 11512-11519
          Article
          10.1073/pnas.0801925105
          2556421
          18695234
          5287d360-5312-4f36-a8d2-eda124f800ba
          © 2008
          History

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