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dc.contributor.authorDale, PER
dc.contributor.authorDale, MB
dc.date.accessioned2017-05-03T11:11:33Z
dc.date.available2017-05-03T11:11:33Z
dc.date.issued2002
dc.date.modified2010-07-28T06:58:10Z
dc.identifier.issn1585-8553
dc.identifier.doi10.1556/ComEc.3.2002.1.3
dc.identifier.urihttp://hdl.handle.net/10072/6714
dc.description.abstractIn this paper we examine the impact of runnelling on the vegetation of a salt marsh. Runnelling is a form of habitat modification used for mosquito control in Australia. Defining the states of the system through unsupervised clustering of vegetation records using the minimum message length principle, 11 states (or classes) were identified. The runnelled sites have a greater diversity of states present than the unrunnelled ones. The states at each time for each site were then used to develop transition matrices. From these, two different pathways were identified, indicating the patterns of change. The method of showing changes relied on pictures that represent average species size and density. Both the two main pathways of change started with the dominant grass (Sporobolus). One led to a reduction in Sporobolous and ended in bare ground; the other included changes involving variation in the size and density of a mix of Sporobolus and Sarcocornia. The effects can be interpreted in terms of the increased access of seawater to the marsh resulting in an extension of the lower marsh. We note, however, that this methodology does not distinguish between changes of state within a single process and changes associated with a change in the actual processes operating.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoen_AU
dc.publisherAkademiai Kiado
dc.publisher.placeHungary
dc.relation.ispartofpagefrom19
dc.relation.ispartofpageto29
dc.relation.ispartofissue1
dc.relation.ispartofjournalCommunity Ecology
dc.relation.ispartofvolume3
dc.subject.fieldofresearchEcology
dc.subject.fieldofresearchcode0602
dc.titleOptimal classification to describe environmental change: pictures from the exposition.
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.facultyGriffith Sciences, Griffith School of Environment
gro.date.issued2002
gro.hasfulltextNo Full Text
gro.griffith.authorDale, Patricia E.
gro.griffith.authorDale, Michael B.


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