Figure 6 - uploaded by Vishnu Prahalad
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Community Type 2 dominated by a mixture of Juncus kraussii, Apodasmia brownii and Deschampsia caespitosa -variant 2, away from the water with Deschampsia being the canopy forming species and Typha spp. occurring at places.
Source publication
The upper Derwent Estuary wetlands are situated between New Norfolk and the
Bridgewater causeway. They are comprised of tidally influenced freshwater wetlands
interspersed with saline grasslands, rushlands and scrublands, with
extensive Ruppia spp. beds in the submergent zone. The focus of this project
is restricted to the emergent wetlands and the...
Context in source publication
Context 1
... other variant occurs on higher elevations with Deschampsia forming the canopy, while Juncus and Apodasmia were occurring in varying densities. Tyhpa spp. was found occurring in scattered locations within this variant ( Figure 6). The percentage cover of Deschampsia is estimated to be in the range of 60-90%. ...
Similar publications
To elucidate the taxonomic status of Ruppia drepanensis Tineo ex Guss. (Alismatales, Ruppiaceae), we performed morphological analysis and DNA barcoding of historical materials (including the lectotype) and fresh samples (including those from a recently discovered population near the locus classicus in Sicily, Italy). We conclude that R. drepanensis...
Citations
... The Dromedary marshes form the largest area of emergent wetland complex in the upper estuary and are relatively intact and highly diverse. In 2011, the DEP commissioned at detailed survey of this marsh, which was undertaken by Prahalad and Mount (2011). High resolution maps were developed based on a combination of aerial imagery and ground-truthing. ...
... The Dromedary marshes form the largest area of emergent wetland complex in the upper estuary and are relatively intact and highly diverse. In 2011, the DEP commissioned at detailed survey of this marsh, which was undertaken by Prahalad and Mount (2011). High resolution maps were developed based on a combination of aerial imagery and ground-truthing. ...
The Derwent estuary supports a wide variety of habitats, such as saltmarshes, and wetlands, tidal flats and seagrasses, rocky reefs and subtidal soft sediments. The Derwent foreshore retains 49% of its native vegetation, including 12 state-listed threatened vegetation communities and two EPBC-listed communities. There has been good progress during this reporting period in mapping the extent and condition of key habitats, including the wetlands and macrophyte beds of the upper estuary, the Lauderdale saltmarshes, and the rocky reefs of the middle and lower estuary. A conservation action planning process has highlighted the vulnerability of high value wetlands and seagrass/macrophyte communities to reclamation, water quality
decline and sea-level rise.
The estuary supports a wide range of fauna, including over 150 species of fish and 120 species of birds. There is little quantitative data on which to ascertain long-term trends
in Derwent estuary fauna, hence, population and species diversity trends for most species of birds, fish and macroinvertebrates are not well known. The long-term decline in
migratory shorebirds in the Derwent estuary/Pittwater area persists, and the number of ducks in the upper estuary has also fallen, however gull numbers have increased in recent
years. Monitoring and conservation actions have continued for little penguins and spotted handfish, which continue to breed at a number of sites in the lower estuary. During the reporting period pilot surveys have been undertaken on Derwent estuary dolphins, endangered saltmarsh moths, and the endangered Australasian bittern.
