Robust Patterns in Food Web Structure

Details Robust Patterns in Food Web Structure Robust Patterns in Food Web Structure

2001-03-05

arxiv.org/abs/cond-mat/0103114v2

Phys. Rev. Lett 88, 228102 (2002)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages. Final version to appear in PRL

Scientific paper

10.1103/PhysRevLett.88.228102

We analyze the properties of seven community food webs from a variety of environments--including freshwater, marine-freshwater interfaces and terrestrial environments. We uncover quantitative unifying patterns that describe the properties of the diverse trophic webs considered and suggest that statistical physics concepts such as scaling and universality may be useful in the description of ecosystems. Specifically, we find that several quantities characterizing these diverse food webs obey functional forms that are universal across the different environments considered. The empirical results are in remarkable agreement with the analytical solution of a recently proposed model for food webs.

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