Lewis, Nicola D and Breckels, Mark N and Archer, Steve D and Morozov, Andrew and Pitchford, Jonathan W and Steinke, Michael and Codling, Edward A (2012) Grazing-induced production of DMS can stabilize food-web dynamics and promote the formation of phytoplankton blooms in a multitrophic plankton model. Biogeochemistry, 110 (1-3). pp. 303-313. DOI https://doi.org/10.1007/s10533-011-9649-0
Lewis, Nicola D and Breckels, Mark N and Archer, Steve D and Morozov, Andrew and Pitchford, Jonathan W and Steinke, Michael and Codling, Edward A (2012) Grazing-induced production of DMS can stabilize food-web dynamics and promote the formation of phytoplankton blooms in a multitrophic plankton model. Biogeochemistry, 110 (1-3). pp. 303-313. DOI https://doi.org/10.1007/s10533-011-9649-0
Lewis, Nicola D and Breckels, Mark N and Archer, Steve D and Morozov, Andrew and Pitchford, Jonathan W and Steinke, Michael and Codling, Edward A (2012) Grazing-induced production of DMS can stabilize food-web dynamics and promote the formation of phytoplankton blooms in a multitrophic plankton model. Biogeochemistry, 110 (1-3). pp. 303-313. DOI https://doi.org/10.1007/s10533-011-9649-0
Abstract
Volatile infochemicals including climatically relevant dimethylsulphide (DMS) have been suggested to play important roles in the structuring and functioning of marine food webs. Experimenting with complex natural plankton communities or several trophic levels in laboratory microcosms is challenging and, as a result, empirical data confirming the role of DMS in trophic interactions is lacking. Models are a suitable tool to provide insight into such complex interactions. Here we consider a model of the interactions between three trophic levels of plankton: phytoplankton, grazing microzooplankton and predatory mesozooplankton. We show that the inclusion of a grazing-induced DMS production term has a stabilizing effect on the system dynamics under the assumption that DMS acts as an info-chemical and increases the rate of mesozooplankton predation on grazing microzooplankton. We further demonstrate how this feedback between trophic levels can potentially lead to the formation of a phytoplankton bloom. The model provides a suitable framework for further study into the possible role of DMS in the ecology of marine food webs beyond its recognised role as a climate-cooling gas.
Item Type: | Article |
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Additional Information: | Published proceedings: Biogeochemistry |
Uncontrolled Keywords: | Multitrophic interactions; Dimethylsulphide; Plankton blooms; Mathematical modelling; Population dynamics |
Subjects: | Q Science > QH Natural history > QH301 Biology |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Life Sciences, School of Faculty of Science and Health > Mathematics, Statistics and Actuarial Science, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 05 Nov 2012 15:47 |
Last Modified: | 30 Oct 2024 19:43 |
URI: | http://repository.essex.ac.uk/id/eprint/4210 |