Gibson, Keighery & Lane: Lake Muir-Unicup wetland system 
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Baumea articulata 
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Baumea juncea 
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Lepidosperma 
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longitudinale 
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Wet flats 
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Claypan 
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- 3.5 - 2.5 - 1.5 - 0.5 0.5 1.5 
mds 1 
Figure 2. (a) Ordination showing five broad wetland types: Baumea articulata basin wetlands, flats and riparian zones dominated by 
Baumea juncea, swamps and flats with understorey dominated by Lepidosperma longitudinale, other wet flats, and claypans. (b) Non¬ 
metric multidimensional scaling ordination of the 41 quadrats in 1997 (diamonds) and 2002 (triangles) based on cover abundance data. 
The four quadrats that showed large movement in ordination space are indicated by an arrow. 
there was no significant change in species abundance as 
a whole in the 41 quadrats over the five year period. A 
plot of the two dimensional ordination coded by year 
shows little or no movement for most quadrats in 
ordination space consistent with the ANOSIM results. 
When the change in distance in ordination space for 
individual quadrats was calculated four quadrats 
showed large movement (Fig. 2b). Two of these 
quadrats were from species-poor Baumea articulata 
basin wetlands, the third from a Melaleuca swamp and 
31 
