Disentangling mechanisms that mediate the balance between stochastic and deterministic processes in microbial succession

Proceedings of the National Academy of Sciences of the United States of America - Tập 112 Số 11 - 2015
Francisco Dini‐Andreote1, James Stegen2, Jan Dirk van Elsas1, Joana Falcão Salles1
1aDepartment of Microbial Ecology, Groningen Institute for Evolutionary Life Sciences, University of Groningen, 9747 AG Groningen, The Netherlands; and
2bBiological Sciences Division, Pacific Northwest National Laboratory, Richland, WA 99352

Tóm tắt

Significance Across ecology, and particularly within microbial ecology, there is limited understanding of the mechanisms governing the relative influences of stochastic and deterministic processes. Filling this knowledge gap is a major challenge that requires the development of novel conceptual paradigms, experiments, and ecological models. Here we ( i ) present a conceptual model that couples the stochastic/deterministic balance to primary and secondary ecological succession, thereby integrating previously isolated conceptual domains; ( ii ) evaluate this model over 105 years of ecosystem development, revealing a systematic shift in the type and strength of ecological selection; and ( iii ) couple empirical data with a new simulation model to elucidate underlying mechanisms and characterize their scale dependency. The insights and conceptual framework provided here represent a nexus for cross-system integration.

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Proceedings of the National Academy of Sciences of the United States of America

Tập 112 Số 11

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