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Lake Level Changes Within The Yellagonga Regional Park: A Historic Perspective, Jennifer A. Hamann
Lake Level Changes Within The Yellagonga Regional Park: A Historic Perspective, Jennifer A. Hamann
Theses : Honours
The Yellagonga Regional Park is located approximately 20 km north of Perth and 6km east of the coast, in the City of Wanneroo. The park is comprised of Lake Joondalup, Beenyup Swamp, Wallubuenup Swamp and Lake Goollelal, a largely directly-linked wetland system and their surrounds. The importance of wetlands within the Perth Metropolitan area is widely documented with only 20% of the pre-European settlement wetlands remaining. (Godfrey, 1988; Davis, 1988) By comparison wetlands in the Yellagonga Regional Park are relatively natural in their state. (LeProvost, 1987) The park is of significance due to its conservation value, providing a varied array …
Seasonal Water Regimes And Leaf Litter Processing In A Wetland On The Swan Coastal Plain, Darren Ryder
Seasonal Water Regimes And Leaf Litter Processing In A Wetland On The Swan Coastal Plain, Darren Ryder
Theses : Honours
The effect of seasonal or permanent inundation on the processing of leaf litter from two competing emergent macrophytes Baumea articulata and Typha orientalis was examined at Lake Jandabup, a seasonal wetland on the Swan Coastal Plain. The loss of organic matter from leaf packs was used to quantify leaf litter processing. The contributions made by microorganisms and macroinvertebrates in processing were also assessed. Leaf packs exposed to seasonal inundation (defined as those areas exposed to alternate wetting and drying) had significantly higher losses of organic matter after six months than those permanently inundated for the same period. The presence of …