Title: Microbial macroecology: In search of mechanisms governing microbial biogeographic patterns

Journal Article · · Global Ecology and Biogeography
DOI: https://doi.org/10.1111/geb.13162 · OSTI ID:1645127
ORCiD logo [1];  [2];  [1];  [3];  [4]; ORCiD logo [1];  [5]; ORCiD logo [6];
  1. Biology Department San Diego State University San Diego California USA
  2. Biology Department San Diego State University San Diego California USA, Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun China, Institute of Botany Chinese Academy of Sciences Beijing China
  3. Department of Biology University of New Mexico Albuquerque New Mexico USA
  4. Department of Ecology, Evolution, and Marine Biology University of California Santa Barbara Santa Barbara California USA
  5. Environmental Biology Department Institute of Environmental Sciences CML, Leiden University Leiden The Netherlands
  6. Institute of Ecology and Earth Sciences University of Tartu Tartu Estonia

Abstract Introduction Rapidly advancing technologies and accumulating information about microbial communities across the globe allow the quantification of microbial properties and functions at a macro‐scale. These emerging microbial biogeographic patterns call for a practical macroecological approach to investigate their underlying mechanisms. Aims The primary aims of this paper are to review the advancements of microbial macroecology in seeking mechanisms governing microbial biogeographic patterns, and to further lay out a roadmap for microbial macroecology in 10 years. Methods We reviewed the progress of microbial macroecology and demonstrated the application of the microbial macroecological approach to microbial biogeographic patterns with three case studies. Results Microbial macroecology provides a platform for understanding microbial abundance, community structure, and functioning across space, time, and taxonomic hierarchy. It emphasizes the integral effects of environmental filtering, microbial responses, diversification, dispersal, and local extinction that drive the microbial biogeographic patterns. The microbial macroecological approach emphasizes the last two stages of the four‐stage scientific method applied to microbial ecology: (a) describing microbial traits across scales to reveal patterns, (b) mathematically representing these patterns, (c) developing and testing conceptual models to build a mechanistic understanding of these patterns from a macroecological perspective, (d) plugging the new knowledge into the theoretical advancements. Three case studies were used to demonstrate the microbial macroecological approach for understanding the global patterns of microbial biomass carbon, microbial composition (fungi : bacteria ratio), and microbial carbon use efficiency. Conclusions Microbial macroecology offers a platform for understanding the mechanisms that drive biogeographic patterns of microbial abundance, diversity and functions. It is likely that these patterns and mechanisms will be increasingly incorporated into predictive models that link climate, carbon dynamics, and biogeochemical processes. A roadmap is outlined for the growing microbial macroecology field; we expect significant progress will be made in five research directions over the next 10 years.

Sponsoring Organization:
USDOE
OSTI ID:
1645127
Journal Information:
Global Ecology and Biogeography, Journal Name: Global Ecology and Biogeography Journal Issue: 11 Vol. 29; ISSN 1466-822X
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
United Kingdom
Language:
English

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