Dimethylsulphide, clouds, and phytoplankton: Insights from a simple plankton ecosystem feedback model

The hypothesis that marine plankton ecosystems may effectively regulate climate by the production of dimethylsulphide (DMS) has attracted substantial research effort over recent years. This hypothesis suggests that DMS produced by marine ecosystems can affect cloud properties and hence the averaged...

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Main Authors: Cropp, R, Norbury, J, Braddock, R
Format: Journal article
Language:English
Published: 2007
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author Cropp, R
Norbury, J
Braddock, R
author_facet Cropp, R
Norbury, J
Braddock, R
author_sort Cropp, R
collection OXFORD
description The hypothesis that marine plankton ecosystems may effectively regulate climate by the production of dimethylsulphide (DMS) has attracted substantial research effort over recent years. This hypothesis suggests that DMS produced by marine ecosystems can affect cloud properties and hence the averaged irradiance experienced by the phytoplankton that produce DMS's precursor dimethylsulphoniopropionate (DMSP). This paper describes the use of a simple model to examine the effects of such a biogenic feedback on the ecosystem that initiates it. We compare the responses to perturbation of a simple marine nitrogen-phytoplankton-zooplankton (NPZ) ecosystem model with and without biogenic feedback. Our analysis of this heuristic model reveals that the addition of the feedback can increase the model's resilience to perturbation and hence stabilize the model ecosystem. This result suggests the hypothesis that DMS may play a role in stabilizing marine plankton ecosystem dynamics through its effect on the atmosphere. Copyright 2007 by the American Geophysical Union.
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spelling oxford-uuid:90271886-3207-4a2c-a0c4-1c167fa117012022-03-26T23:09:35ZDimethylsulphide, clouds, and phytoplankton: Insights from a simple plankton ecosystem feedback modelJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:90271886-3207-4a2c-a0c4-1c167fa11701EnglishSymplectic Elements at Oxford2007Cropp, RNorbury, JBraddock, RThe hypothesis that marine plankton ecosystems may effectively regulate climate by the production of dimethylsulphide (DMS) has attracted substantial research effort over recent years. This hypothesis suggests that DMS produced by marine ecosystems can affect cloud properties and hence the averaged irradiance experienced by the phytoplankton that produce DMS's precursor dimethylsulphoniopropionate (DMSP). This paper describes the use of a simple model to examine the effects of such a biogenic feedback on the ecosystem that initiates it. We compare the responses to perturbation of a simple marine nitrogen-phytoplankton-zooplankton (NPZ) ecosystem model with and without biogenic feedback. Our analysis of this heuristic model reveals that the addition of the feedback can increase the model's resilience to perturbation and hence stabilize the model ecosystem. This result suggests the hypothesis that DMS may play a role in stabilizing marine plankton ecosystem dynamics through its effect on the atmosphere. Copyright 2007 by the American Geophysical Union.
spellingShingle Cropp, R
Norbury, J
Braddock, R
Dimethylsulphide, clouds, and phytoplankton: Insights from a simple plankton ecosystem feedback model
title Dimethylsulphide, clouds, and phytoplankton: Insights from a simple plankton ecosystem feedback model
title_full Dimethylsulphide, clouds, and phytoplankton: Insights from a simple plankton ecosystem feedback model
title_fullStr Dimethylsulphide, clouds, and phytoplankton: Insights from a simple plankton ecosystem feedback model
title_full_unstemmed Dimethylsulphide, clouds, and phytoplankton: Insights from a simple plankton ecosystem feedback model
title_short Dimethylsulphide, clouds, and phytoplankton: Insights from a simple plankton ecosystem feedback model
title_sort dimethylsulphide clouds and phytoplankton insights from a simple plankton ecosystem feedback model
work_keys_str_mv AT croppr dimethylsulphidecloudsandphytoplanktoninsightsfromasimpleplanktonecosystemfeedbackmodel
AT norburyj dimethylsulphidecloudsandphytoplanktoninsightsfromasimpleplanktonecosystemfeedbackmodel
AT braddockr dimethylsulphidecloudsandphytoplanktoninsightsfromasimpleplanktonecosystemfeedbackmodel