Habitat structure mediates biodiversity effects on ecosystem properties

Jasmin Annica Godbold, M. T. Bulling, Martin Solan

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

Much of what we know about the role of biodiversity in mediating ecosystem processes and function stems from manipulative experiments, which have largely been performed in isolated, homogeneous environments that do not incorporate habitat structure or allow natural community dynamics to develop. Here, we use a range of habitat configurations in a model marine benthic system to investigate the effects of species composition, resource heterogeneity and patch connectivity on ecosystem properties at both the patch (bioturbation intensity) and multi-patch (nutrient concentration) scale. We show that allowing fauna to move and preferentially select patches alters local species composition and density istributions, which has negative effects on ecosystem processes (bioturbation intensity) at the patch scale, but overall positive effects on ecosystem functioning (nutrient concentration) at the multi-patch scale. Our findings provide important evidence that community dynamics alter in response to localized resource heterogeneity and that these small-scale variations in habitat structure influence species contributions to ecosystem properties at larger scales. We conclude that habitat complexity forms an important buffer against disturbance and that contemporary estimates of the level of biodiversity required for maintaining future
multi-functional systems may need to be revised.
Original languageEnglish
Pages (from-to)2510-2518
Number of pages9
JournalProceedings. Section B, Biological Sciences / The Royal Society of Edinburgh
Volume278
Issue number1717
Early online date12 Jan 2011
DOIs
Publication statusPublished - 2011

    Fingerprint

Keywords

  • Habitat heterogeneity
  • Fragmentation
  • Meta-community
  • Ecosystem processes
  • Ecosystem function
  • Patch dynamics

Cite this