Home > Research > Publications & Outputs > Structural complexity mediates functional struc...

Electronic data

  • Richardsonetal_EBFI_accepted

    Rights statement: The final publication is available at Springer via http://dx.doi.org/10.1007/s10641-016-0571-0

    Accepted author manuscript, 926 KB, PDF document

    Available under license: CC BY-NC: Creative Commons Attribution-NonCommercial 4.0 International License

Links

Text available via DOI:

View graph of relations

Structural complexity mediates functional structure of reef fish assemblages among coral habitats

Research output: Contribution to journalJournal article

Published
Close
<mark>Journal publication date</mark>03/2017
<mark>Journal</mark>Environmental Biology of Fishes
Issue number3
Volume100
Number of pages15
Pages (from-to)193-207
Publication statusPublished
Early online date7/01/17
Original languageEnglish

Abstract

Coral community composition varies considerably due to both environmental conditions and disturbance histories. However, the extent to which coral composition influences associated fish assemblages remains largely unknown. Here an ecological trait-based ordination analysis was used to compare functional richness (range of unique trait combinations), functional evenness (weighted distribution of fishes with shared traits), and functional divergence (proportion of total abundance supported by species with traits on the periphery of functional space) of fish assemblages among six distinct coral habitats. Despite no significant variation in species richness among habitats, there were differences in the functional richness and functional divergence, but not functional evenness, of fish assemblages among habitats. Structural complexity of coral assemblages was the best predictor of the differences in functional richness and divergence among habitats. Functional richness of fish assemblages was highest in branching Porites habitats, lowest in Pocillopora and soft coral habitats, and intermediate in massive Porites, staghorn Acropora, and mixed coral habitats. Massive and branching Porites habitats displayed greater functional divergence in fish assemblages than the Pocillopora habitat, whilst the remaining habitats were intermediate. Differences in functional richness and divergence were largely driven by the presence of small schooling planktivores in the massive and branching Porites habitats. These results indicate that differential structural complexity among coral communities may act as an environmental filter, affecting the distribution and abundance of associated species traits, particularly those of small-bodied schooling fishes.

Bibliographic note

The final publication is available at Springer via http://dx.doi.org/10.1007/s10641-016-0571-0