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Flow modifies the effect of biodiversity on ecosystem functioning: an in situ study of estuarine sediments

Flow modifies the effect of biodiversity on ecosystem functioning: an in situ study of estuarine sediments
Flow modifies the effect of biodiversity on ecosystem functioning: an in situ study of estuarine sediments
The effect of flow and biodiversity on ecosystem functioning was investigated in an estuarine system using in situ benthic chambers. Macrofaunal communities were artificially assembled to manipulate both species richness and functional trait richness. In addition, naturally occurring communities were sampled in order to determine the effect of macrofaunal and sediment disruption. Ecosystem functioning was assessed by measurement of nutrient release (NH4–N) from the sediment, a process essential for primary production. Natural and assembled communities were found to differ significantly, demonstrating the effect of experimental manipulation on the system. Flow was found to have a highly significant effect on ecosystem functioning in both natural and assembled communities in treatments containing macrofauna. No significant difference between static and flow treatments was found in macrofaunal-free controls, indicating that flow generates an effect through promoting changes in bioturbatory activity of the infauna causing greater disruption to the sediment. In assembled communities, functional richness significantly increased ecosystem functioning. Species richness had no influence in assembled communities.
0022-0981
165 - 177
Biles, C. L.
dac0cd78-80ec-44ad-a21f-21f9a3275a13
Solan, M.
c28b294a-1db6-4677-8eab-bd8d6221fecf
Isaksson, I.
8aa76c4b-9b93-4d71-a340-163048517935
Paterson, D. M.
6eff77a6-6c47-48a3-aa80-bdd1b120d67f
Emes, C.
d9b2010d-3cc8-4d57-9940-67eb49ce615d
Raffaelli, D. G.
a72ab1b5-13c1-4d7a-ad6f-a165d0010892
Biles, C. L.
dac0cd78-80ec-44ad-a21f-21f9a3275a13
Solan, M.
c28b294a-1db6-4677-8eab-bd8d6221fecf
Isaksson, I.
8aa76c4b-9b93-4d71-a340-163048517935
Paterson, D. M.
6eff77a6-6c47-48a3-aa80-bdd1b120d67f
Emes, C.
d9b2010d-3cc8-4d57-9940-67eb49ce615d
Raffaelli, D. G.
a72ab1b5-13c1-4d7a-ad6f-a165d0010892

Biles, C. L., Solan, M., Isaksson, I., Paterson, D. M., Emes, C. and Raffaelli, D. G. (2003) Flow modifies the effect of biodiversity on ecosystem functioning: an in situ study of estuarine sediments. Journal of Experimental Marine Biology and Ecology, 285 - 286, 165 - 177. (doi:10.1016/s0022-0981(02)00525-7).

Record type: Article

Abstract

The effect of flow and biodiversity on ecosystem functioning was investigated in an estuarine system using in situ benthic chambers. Macrofaunal communities were artificially assembled to manipulate both species richness and functional trait richness. In addition, naturally occurring communities were sampled in order to determine the effect of macrofaunal and sediment disruption. Ecosystem functioning was assessed by measurement of nutrient release (NH4–N) from the sediment, a process essential for primary production. Natural and assembled communities were found to differ significantly, demonstrating the effect of experimental manipulation on the system. Flow was found to have a highly significant effect on ecosystem functioning in both natural and assembled communities in treatments containing macrofauna. No significant difference between static and flow treatments was found in macrofaunal-free controls, indicating that flow generates an effect through promoting changes in bioturbatory activity of the infauna causing greater disruption to the sediment. In assembled communities, functional richness significantly increased ecosystem functioning. Species richness had no influence in assembled communities.

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Published date: 12 February 2003

Identifiers

Local EPrints ID: 455832
URI: http://eprints.soton.ac.uk/id/eprint/455832
ISSN: 0022-0981
PURE UUID: 48852fc0-43cf-4e6d-bd7b-0bcc63c20808
ORCID for M. Solan: ORCID iD orcid.org/0000-0001-9924-5574

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Date deposited: 06 Apr 2022 16:30
Last modified: 07 Apr 2022 01:42

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Contributors

Author: C. L. Biles
Author: M. Solan ORCID iD
Author: I. Isaksson
Author: D. M. Paterson
Author: C. Emes
Author: D. G. Raffaelli

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