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The Hidden Frontier: Quantitative Exploration of Physical and Ecological Origins of Microbial Diversity in Soil

Objective

By some accounts exploring the origins of soil microbial diversity represents a scientific frontier similar to that of space exploration in its scope, described by Curtis and Sloan (2004) as ”an immense and unexplored frontier in science of astronomical dimensions and of astonishing complexity”. The complexity is attributed to soil ecological heterogeneity reflecting interplay of spatio-temporal, physical, and nutritional variables delineating spheres of influence that define microbial habitats and function. Key to microbial life in soil is a flickering aqueous network that defines nutrient diffusional pathways and shapes microbial dispersion and interactions. We propose to develop an individual-based and spatially resolved modeling platform that explicitly considers soil pore structure and aqueous phase configuration and associated biophysical processes forming a virtual soil microcosm. The assembly of these complex ingredients into a computational platform will enable systematic hypotheses testing concerning central questions in microbial ecology that are neither addressed by present ecological theories nor emerge from standard continuum models. Specifically, the project will provide quantitative insights into effects of hydration extremes on survival strategies, the roles of space and diffusional heterogeneity, aspects of dispersion and trophic interactions, self-organization of consortia, and emergence of temporal niches in soil. The research will transform quantitative understanding of soil biophysical processes, a gap that presently limits coherent interpretation of the rapidly growing molecular-based estimates of soil biodiversity, and is essential for guiding future data collection. The research lies at the interface between environmental microbiology and soil physics cutting across disciplinary boundaries and addressing broad issues impacting soil and water quality, the functioning of global bio-geochemical cycles, and the fate of anthropogenic pollutants.

Field of science

  • /natural sciences/biological sciences/ecology
  • /natural sciences/biological sciences/microbiology
  • /natural sciences/physical sciences/astronomy/space exploration

Call for proposal

ERC-2012-ADG_20120216
See other projects for this call

Funding Scheme

ERC-AG - ERC Advanced Grant

Host institution

EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH
Address
Raemistrasse 101
8092 Zuerich
Switzerland
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 2 196 632
Principal investigator
Dani Or (Prof.)
Administrative Contact
Dani Or (Prof.)

Beneficiaries (1)

EIDGENOESSISCHE TECHNISCHE HOCHSCHULE ZUERICH
Switzerland
EU contribution
€ 2 196 632
Address
Raemistrasse 101
8092 Zuerich
Activity type
Higher or Secondary Education Establishments
Principal investigator
Dani Or (Prof.)
Administrative Contact
Dani Or (Prof.)