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Comparison of the in stream fauna and resources of Tasmanian river reaches lined with willows or with other riparian types

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Table Physical characteristics of native and willowed reaches in each ofthe 9 rivers in south-eastern Tasmania
Fig. 1 . Differences in Physico-chemical measurements in native(light bars) and willow (shaded bars) reaches in each season: (a) Dissolved oxygen (mg/1); (b) Temperature ec);
Fig. 3. Mean measures of invertebrate density and diversity in native (light bars) and willow reaches (shaded bars) in each season: (a) loge total number of individuals; (b) taxon richness;
Table 2. Physical characteristics of removal and willowed reaches in each of the 7 rivers in Tasmania
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between shredder density and the amount of detrital willow leaves in autumn in 4 New Zealand streams In this study I did find a 5-fold greater density of all shredders combined in i programs over a longer tenn in terms of maintaining riparian functions during any �ehabilitation project The majority of studies comparing willowed riparian zones with Methods and Materials : Differences in population densities for total species and individual fish species were ln this study, although epilithic biomass was elevated in removal reaches in all seasons this was not paralleled by differences in total macroinvertebrate density in each riparian type In Reaches adjacent to sclerophyllous native vegetation surveyed had lower L WD standing ! 1 macro invertebrates with a greater degree of surface complexity than willow wood The Vere,not as apparent This may arise given similar land use practices adjacent to these riparian

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