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Population dynamics of the intertidal barnacle Semibalanus balanoidesat three European locations: spatial scales of variability

Population dynamics of the intertidal barnacle Semibalanus balanoidesat three European locations: spatial scales of variability
Population dynamics of the intertidal barnacle Semibalanus balanoidesat three European locations: spatial scales of variability
Spatial variability in the population dynamics of the intertidal acorn barnacle Semibalanus balanoides was investigated using a hierarchical sampling programme. Variability in a number of population parameters (size distribution, density, % cover, absolute growth and instantaneous mortality) was determined separately for new recruits and adults over 3 spatial scales. Three locations, SW Ireland, the Isle of Man and the west coast of Sweden, which cover a large part of the European range of this species, were selected to investigate variability over a large spatial scale (100s of kilometres). Two smaller scales, shore (1000s of metres) and site (10s of metres) nested within each location were also used. In addition, temporal variation over two 6 mo periods was also examined in the Isle of Man and Ireland. Most variability for all population parameters occurred over the largest spatial scale (location). This was a direct result of differences between Sweden and the other 2 locations, the Isle of Man and Ireland, which showed highly similar levels of all population parameters. The population of S, balanoides at the Swedish location was characterised by high growth rates, large size, high levels of mortality and a large turnover of bare space. At the spatial scale 'shore', only 1 population parameter, the growth rate of recruits, showed variability. At the smallest scale of 'site', all parameters showed significant variability except growth rate of adults. Calculation of variance components showed that differences between replicates (spatial scale: <0.5 m) accounted for little of the overall variability, in general less than the scales of site and shore. Examination of temporal variability over two 6 mo periods revealed no difference between time periods and no significant interaction between temporal and spatial scales, Thus, there was consistency of spatial variability over time. The potential causes of variability in population parameters of S, balanoides at different spatial scales and the implications for future studies are discussed.
hierarchical sampling, intertidal, population dynamics, Semibalanus balanoides, spatial variation
0171-8630
207-217
Jenkins, S.R.
f160f172-4162-4e5b-bf70-9048d9e7ec8d
Aberg, P.
9daafca3-4fa8-4893-a0da-46ce50887488
Cervin, G.
ae48c2ca-0fbf-424f-a06f-2f442986bb82
Coleman, R.A.
8297ae7f-706b-4da0-bd9a-3326ce9e0e05
Delany, J.
a98cfd21-f529-417d-bf95-f740070ec744
Hawkins, S.J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Hyder, K.
6f4fe91c-b2d6-49b4-a554-222ca3371264
Myers, A.A.
68b30cd8-2152-4e0f-8521-295606c458a7
Paula, J.
209b9480-0a12-4ad9-99fa-28a108f67ddb
Power, A.M.
dc5ed4d9-aefc-4225-b25f-271efa8a1f5e
Range, P.
1b12f4b6-08c2-42a2-9da3-b8487ae27867
Hartnoll, R.G.
350a79bb-86b5-4cac-ab51-13cbfeef826d
Jenkins, S.R.
f160f172-4162-4e5b-bf70-9048d9e7ec8d
Aberg, P.
9daafca3-4fa8-4893-a0da-46ce50887488
Cervin, G.
ae48c2ca-0fbf-424f-a06f-2f442986bb82
Coleman, R.A.
8297ae7f-706b-4da0-bd9a-3326ce9e0e05
Delany, J.
a98cfd21-f529-417d-bf95-f740070ec744
Hawkins, S.J.
758fe1c1-30cd-4ed1-bb65-2471dc7c11fa
Hyder, K.
6f4fe91c-b2d6-49b4-a554-222ca3371264
Myers, A.A.
68b30cd8-2152-4e0f-8521-295606c458a7
Paula, J.
209b9480-0a12-4ad9-99fa-28a108f67ddb
Power, A.M.
dc5ed4d9-aefc-4225-b25f-271efa8a1f5e
Range, P.
1b12f4b6-08c2-42a2-9da3-b8487ae27867
Hartnoll, R.G.
350a79bb-86b5-4cac-ab51-13cbfeef826d

Jenkins, S.R., Aberg, P., Cervin, G., Coleman, R.A., Delany, J., Hawkins, S.J., Hyder, K., Myers, A.A., Paula, J., Power, A.M., Range, P. and Hartnoll, R.G. (2001) Population dynamics of the intertidal barnacle Semibalanus balanoidesat three European locations: spatial scales of variability. Marine Ecology Progress Series, 217, 207-217.

Record type: Article

Abstract

Spatial variability in the population dynamics of the intertidal acorn barnacle Semibalanus balanoides was investigated using a hierarchical sampling programme. Variability in a number of population parameters (size distribution, density, % cover, absolute growth and instantaneous mortality) was determined separately for new recruits and adults over 3 spatial scales. Three locations, SW Ireland, the Isle of Man and the west coast of Sweden, which cover a large part of the European range of this species, were selected to investigate variability over a large spatial scale (100s of kilometres). Two smaller scales, shore (1000s of metres) and site (10s of metres) nested within each location were also used. In addition, temporal variation over two 6 mo periods was also examined in the Isle of Man and Ireland. Most variability for all population parameters occurred over the largest spatial scale (location). This was a direct result of differences between Sweden and the other 2 locations, the Isle of Man and Ireland, which showed highly similar levels of all population parameters. The population of S, balanoides at the Swedish location was characterised by high growth rates, large size, high levels of mortality and a large turnover of bare space. At the spatial scale 'shore', only 1 population parameter, the growth rate of recruits, showed variability. At the smallest scale of 'site', all parameters showed significant variability except growth rate of adults. Calculation of variance components showed that differences between replicates (spatial scale: <0.5 m) accounted for little of the overall variability, in general less than the scales of site and shore. Examination of temporal variability over two 6 mo periods revealed no difference between time periods and no significant interaction between temporal and spatial scales, Thus, there was consistency of spatial variability over time. The potential causes of variability in population parameters of S, balanoides at different spatial scales and the implications for future studies are discussed.

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More information

Submitted date: 28 December 1999
Published date: 31 July 2001
Keywords: hierarchical sampling, intertidal, population dynamics, Semibalanus balanoides, spatial variation

Identifiers

Local EPrints ID: 57894
URI: http://eprints.soton.ac.uk/id/eprint/57894
ISSN: 0171-8630
PURE UUID: 2a6c9f3a-4cca-4d6a-9174-229ac2d69e35

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Date deposited: 11 Aug 2008
Last modified: 08 Jan 2022 19:05

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Contributors

Author: S.R. Jenkins
Author: P. Aberg
Author: G. Cervin
Author: R.A. Coleman
Author: J. Delany
Author: S.J. Hawkins
Author: K. Hyder
Author: A.A. Myers
Author: J. Paula
Author: A.M. Power
Author: P. Range
Author: R.G. Hartnoll

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