Hydrobiologia

, Volume 619, Issue 1, pp 133–143

Hierarchical zooplankton metacommunities: distinguishing between high and limiting dispersal mechanisms

  • Ingrid S. Y. Ng
  • Christina M. Carr
  • Karl Cottenie
Primary research paper

DOI: 10.1007/s10750-008-9605-8

Cite this article as:
Ng, I.S.Y., Carr, C.M. & Cottenie, K. Hydrobiologia (2009) 619: 133. doi:10.1007/s10750-008-9605-8

Abstract

Theoretical development in the field of community ecology needs ground proofing with empirical tests. In addition, these tests need to be continuously updated. Cottenie (2005) linked observed metacommunities to theoretical models based on whether environmental and/or spatial effects in the observed metacommunity significantly explain community structure. However, a species-sorting metacommunity with high dispersal and one with limited dispersal cannot be distinguished in this manner; both produce significant environmental and spatial effects. In the present study, we demonstrate a solution to this problem using a zooplankton rock pool metacommunity in Churchill, Manitoba, sampled in August 2006. We established a hierarchy of metacommunities in the Churchill rock bluff system—a large, across-bluff metacommunity, and small, within-bluff metacommunities. Using this spatial hierarchy, it is possible to determine the zooplankton dispersal capability in the rock bluff system and hence to link the metacommunity to its corresponding model. We found the zooplankton rock bluff system to exhibit limited dispersal, meaning that spatial effects were significant at the across-bluff scale, but depending on the bluff, were significant or insignificant at the within-bluff scale. Environmental effects were significant at both scales. This study demonstrates a novel way to determine dispersal capabilities in species that are cryptic dispersers, and to successfully link observed metacommunities with theoretical models.

Keywords

Metacommunity Dispersal Spatial scales Rock pools Sub-arctic Zooplankton 

Supplementary material

10750_2008_9605_MOESM1_ESM.doc (202 kb)
(DOC 202 kb)

Copyright information

© Springer Science+Business Media B.V. 2008

Authors and Affiliations

  • Ingrid S. Y. Ng
    • 1
  • Christina M. Carr
    • 1
  • Karl Cottenie
    • 1
  1. 1.Department of Integrative BiologyUniversity of GuelphGuelphCanada

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