Spatial patterns in ecological systems: from microbial colonies to landscapes
- 9 June 2022
- journal article
- research article
- Published by Portland Press Ltd. in Emerging Topics in Life Sciences
- Vol. 6 (3), 245-258
- https://doi.org/10.1042/etls20210282
Abstract
Self-organized spatial patterns are ubiquitous in ecological systems and allow populations to adopt non-trivial spatial distributions starting from disordered configurations. These patterns form due to diverse nonlinear interactions among organisms and between organisms and their environment, and lead to the emergence of new (eco)system-level properties unique to self-organized systems. Such pattern consequences include higher resilience and resistance to environmental changes, abrupt ecosystem collapse, hysteresis loops, and reversal of competitive exclusion. Here, we review ecological systems exhibiting self-organized patterns. We establish two broad pattern categories depending on whether the self-organizing process is primarily driven by nonlinear density-dependent demographic rates or by nonlinear density-dependent movement. Using this organization, we examine a wide range of observational scales, from microbial colonies to whole ecosystems, and discuss the mechanisms hypothesized to underlie observed patterns and their system-level consequences. For each example, we review both the empirical evidence and the existing theoretical frameworks developed to identify the causes and consequences of patterning. Finally, we trace qualitative similarities across systems and propose possible ways of developing a more quantitative understanding of how self-organization operates across systems and observational scales in ecology.Keywords
This publication has 140 references indexed in Scilit:
- Phase separation explains a new class of self-organized spatial patterns in ecological systemsProceedings of the National Academy of Sciences of the United States of America, 2013
- Arrested phase separation in reproducing bacteria creates a generic route to pattern formationProceedings of the National Academy of Sciences of the United States of America, 2010
- Evolutionary dynamics in structured populationsPhilosophical Transactions B, 2010
- Context-dependent interaction leads to emergent search behavior in social aggregatesProceedings of the National Academy of Sciences of the United States of America, 2009
- Regular pattern formation in real ecosystemsTrends in Ecology & Evolution, 2008
- Genetic drift at expanding frontiers promotes gene segregationProceedings of the National Academy of Sciences of the United States of America, 2007
- A coupled geomorphic and ecological model of tidal marsh evolutionProceedings of the National Academy of Sciences of the United States of America, 2007
- Collective Memory and Spatial Sorting in Animal GroupsJournal of Theoretical Biology, 2002
- Novel Type of Phase Transition in a System of Self-Driven ParticlesPhysical Review Letters, 1995
- The chemical basis of morphogenesisPhilosophical Transactions of the Royal Society of London. B, Biological Sciences, 1952