Integrating the underlying structure of stochasticity into community ecology

Publikation: Beiträge in ZeitschriftenZeitschriftenaufsätzeForschungbegutachtet

Authors

  • Lauren G. Shoemaker
  • Lauren L. Sullivan
  • Ian Donohue
  • Juliano S. Cabral
  • Ryan J. Williams
  • Margaret M. Mayfield
  • Jonathan M. Chase
  • Chengjin Chu
  • W. Stanley Harpole
  • Andreas Huth
  • Janneke HilleRisLambers
  • Aubrie R.M. James
  • Nathan J.B. Kraft
  • Ranjan Muthukrishnan
  • Sean Satterlee
  • Franziska Taubert
  • Xugao Wang
  • Thorsten Wiegand
  • Qiang Yang
  • Karen C. Abbott

Stochasticity is a core component of ecology, as it underlies key processes that structure and create variability in nature. Despite its fundamental importance in ecological systems, the concept is often treated as synonymous with unpredictability in community ecology, and studies tend to focus on single forms of stochasticity rather than taking a more holistic view. This has led to multiple narratives for how stochasticity mediates community dynamics. Here, we present a framework that describes how different forms of stochasticity (notably demographic and environmental stochasticity) combine to provide underlying and predictable structure in diverse communities. This framework builds on the deep ecological understanding of stochastic processes acting at individual and population levels and in modules of a few interacting species. We support our framework with a mathematical model that we use to synthesize key literature, demonstrating that stochasticity is more than simple uncertainty. Rather, stochasticity has profound and predictable effects on community dynamics that are critical for understanding how diversity is maintained. We propose next steps that ecologists might use to explore the role of stochasticity for structuring communities in theoretical and empirical systems, and thereby enhance our understanding of community dynamics.

OriginalspracheEnglisch
Aufsatznummere02922
ZeitschriftEcology
Jahrgang101
Ausgabenummer2
Anzahl der Seiten17
ISSN0012-9658
DOIs
PublikationsstatusErschienen - 01.02.2020

DOI