Testing the Stochastic Dynamic Methodology (StDM) as a management tool in a shallow temperate estuary of south Europe (Mondego, Portugal).

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dc.contributor.authorSilva-Santos, Pedro
dc.contributor.authorPardal, Miguel Ângelo
dc.contributor.authorLopes, Ricardo Jorge
dc.contributor.authorMúrias, Tiago
dc.contributor.authorCabral, João Alexandre
dc.date.accessioned2015-03-17T15:29:24Z
dc.date.available2015-03-17T15:29:24Z
dc.date.issued2008
dc.description.abstractA long-term monitoring program has been carried out since the early 1990s in the Mondego estuary, on Portugal’s west coast, which is presently under heavy human pressure. In this shallow warm-temperate estuary, a significant macroalgal proliferation has been observed, which is a clear sign of nutrient enrichment. As a result of competition with algae, the extension of the seagrass meadows (mainly Zostera noltii) has been reduced. The present paper examined the applicability of a holistic Stochastic Dynamic Methodology (StDM) in predicting the tendencies of trophic key-components (macrophytes, macroalgae, benthic macroinvertebrate and wading birds) as a response to the changes in estuarine environmental conditions. The StDM is a sequential modelling process developed in order to predict the ecological status of changed ecosystems, from whichmanagement strategies can be designed. The data used in the dynamic model construction included true gradients of environmental changes and was sampled from January 1993 to September 1995 and from December 1998 to December 2005. The dynamic model developed was preceded by a conventional multivariate statistical procedure performed to discriminate the significant relationships between the selected ecological components. The model validation was based on independent data collected from January 1996 to January 1997 and from February 1999 to April 2000 for all the state variables considered. Overall, the simulation results are encouraging since they seem to demonstrate the StDM reliability in capturing the trophic dynamics of the studied estuary, by predicting the behavioural pattern for the most part of the components selected, with a focus on the Zostera noltii meadows recovery after the implementation of important management measures.pt
dc.identifier.citationSilva-Santos P. et al, 2008pt
dc.identifier.otherdoi: 10.1016/j.ecolmodel.2007.09.005
dc.identifier.urihttp://hdl.handle.net/10348/4318
dc.language.isoengpt
dc.peerreviewedyespt
dc.relation.ispartofCITAB - Centro de Investigação e de Tecnologias Agro-Ambientais e Biológicaspt
dc.rightsrestricted accesspt
dc.subjectStochastic Dynamic Methodologypt
dc.subjectEutrophicationpt
dc.subjectEstuarine ecosystemspt
dc.subjectTrophic interactionspt
dc.subjectManagement toolspt
dc.titleTesting the Stochastic Dynamic Methodology (StDM) as a management tool in a shallow temperate estuary of south Europe (Mondego, Portugal).pt
dc.typejournal articlept
degois.publication.firstPage377pt
degois.publication.issue210pt
degois.publication.lastPage402pt
degois.publication.locationElsevierpt
degois.publication.titleEcological Modellingpt
dspace.entity.typePublicationen
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