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Realistic scenarios of environmental disturbance lead to functionally important changes in benthic species-environment interactions

Realistic scenarios of environmental disturbance lead to functionally important changes in benthic species-environment interactions
Realistic scenarios of environmental disturbance lead to functionally important changes in benthic species-environment interactions

Changes in community structure concurrent with environmental forcing often form a precursor to changes in species diversity, and can have substantive consequences for ecosystem functioning. Here, we assess the effects of altered levels of evenness that are representative of different levels of eutrophication and changes in salinity associated with altered precipitation patterns, on the mediation of nutrient release by sediment-dwelling invertebrate communities. We find that an adjustment towards a more even distribution of species corresponds with an increase in sediment particle reworking that, in general, translates to increased levels of nutrient release. This response, however, is dependent on the functional role of each species in the community and is influenced by concomitant changes in salinity, especially when salinity extends beyond the range typically experienced by the community. Overall, our findings highlight the dynamic nature of species contributions to functioning and reinforce the importance of understanding when, and how, the mechanistic basis of species-environment interactions are modified as the influence of abiotic and biotic factors flex under periods of directional forcing.

Bioturbation, Evenness, Functional traits, Invertebrates, Multiple stressors, Trait variability
0141-1136
Dolbeth, M.
b323a7c9-2464-4da2-9d26-445cfb65e79d
Crespo, D.
2c07381e-1282-422c-801a-5d620fae7940
Leston, S.
2730a5a2-85b6-400a-8325-0439aac651a0
Solan, M.
c28b294a-1db6-4677-8eab-bd8d6221fecf
Dolbeth, M.
b323a7c9-2464-4da2-9d26-445cfb65e79d
Crespo, D.
2c07381e-1282-422c-801a-5d620fae7940
Leston, S.
2730a5a2-85b6-400a-8325-0439aac651a0
Solan, M.
c28b294a-1db6-4677-8eab-bd8d6221fecf

Dolbeth, M., Crespo, D., Leston, S. and Solan, M. (2019) Realistic scenarios of environmental disturbance lead to functionally important changes in benthic species-environment interactions. Marine Environmental Research, 150, [104770]. (doi:10.1016/j.marenvres.2019.104770).

Record type: Article

Abstract

Changes in community structure concurrent with environmental forcing often form a precursor to changes in species diversity, and can have substantive consequences for ecosystem functioning. Here, we assess the effects of altered levels of evenness that are representative of different levels of eutrophication and changes in salinity associated with altered precipitation patterns, on the mediation of nutrient release by sediment-dwelling invertebrate communities. We find that an adjustment towards a more even distribution of species corresponds with an increase in sediment particle reworking that, in general, translates to increased levels of nutrient release. This response, however, is dependent on the functional role of each species in the community and is influenced by concomitant changes in salinity, especially when salinity extends beyond the range typically experienced by the community. Overall, our findings highlight the dynamic nature of species contributions to functioning and reinforce the importance of understanding when, and how, the mechanistic basis of species-environment interactions are modified as the influence of abiotic and biotic factors flex under periods of directional forcing.

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Accepted/In Press date: 4 August 2019
e-pub ahead of print date: 7 August 2019
Published date: 1 September 2019
Keywords: Bioturbation, Evenness, Functional traits, Invertebrates, Multiple stressors, Trait variability

Identifiers

Local EPrints ID: 433721
URI: http://eprints.soton.ac.uk/id/eprint/433721
ISSN: 0141-1136
PURE UUID: 89e9d3da-b9b0-4365-b094-92311c24163b
ORCID for M. Solan: ORCID iD orcid.org/0000-0001-9924-5574

Catalogue record

Date deposited: 02 Sep 2019 16:30
Last modified: 26 Nov 2021 02:53

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Contributors

Author: M. Dolbeth
Author: D. Crespo
Author: S. Leston
Author: M. Solan ORCID iD

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