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Deterministic processes vary during community assembly for ecologically dissimilar taxa

Author

Listed:
  • Jeff R. Powell

    (Hawkesbury Institute for the Environment, University of Western Sydney)

  • Senani Karunaratne

    (Hawkesbury Institute for the Environment, University of Western Sydney)

  • Colin D. Campbell

    (The James Hutton Institute
    Swedish University of Agricultural Sciences)

  • Huaiying Yao

    (Institute of the Urban Environment, Chinese Academy of Sciences)

  • Lucinda Robinson

    (The James Hutton Institute)

  • Brajesh K. Singh

    (Hawkesbury Institute for the Environment, University of Western Sydney
    Global Centre for Land-Based Innovation, University of Western Sydney)

Abstract

The continuum hypothesis states that both deterministic and stochastic processes contribute to the assembly of ecological communities. However, the contextual dependency of these processes remains an open question that imposes strong limitations on predictions of community responses to environmental change. Here we measure community and habitat turnover across multiple vertical soil horizons at 183 sites across Scotland for bacteria and fungi, both dominant and functionally vital components of all soils but which differ substantially in their growth habit and dispersal capability. We find that habitat turnover is the primary driver of bacterial community turnover in general, although its importance decreases with increasing isolation and disturbance. Fungal communities, however, exhibit a highly stochastic assembly process, both neutral and non-neutral in nature, largely independent of disturbance. These findings suggest that increased focus on dispersal limitation and biotic interactions are necessary to manage and conserve the key ecosystem services provided by these assemblages.

Suggested Citation

  • Jeff R. Powell & Senani Karunaratne & Colin D. Campbell & Huaiying Yao & Lucinda Robinson & Brajesh K. Singh, 2015. "Deterministic processes vary during community assembly for ecologically dissimilar taxa," Nature Communications, Nature, vol. 6(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms9444
    DOI: 10.1038/ncomms9444
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    1. Sébastien Terrat & Walid Horrigue & Samuel Dequietd & Nicolas P A Saby & Mélanie Lelièvre & Virginie Nowak & Julie Tripied & Tiffanie Régnier & Claudy Jolivet & Dominique Arrouays & Patrick Wincker & , 2017. "Mapping and predictive variations of soil bacterial richness across France," PLOS ONE, Public Library of Science, vol. 12(10), pages 1-19, October.
    2. Liu, Jie & Pan, Zezhen & Sun, Ke & Chen, Yalan & Yang, Yan & Gao, Bo & Xing, Baoshan, 2022. "The preferential preservation of both different minerals and polyethylene microplastics on aromatic or aliphatic carbon fractions within low or high pyrolysis temperature biochar under mineralization," Renewable and Sustainable Energy Reviews, Elsevier, vol. 170(C).

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