The results of many decades of land clearing, draining of seasonally-wet areas and altered land use have come home to roost for many of Perth's wetlands. Sites that were once refugia for waterbirds and frogs, home to song birds and supported lush paperbark woodlands over deep tannin pools are now shades of their former selves. Regional water table decline, catchment clearing and weed invasion have taken their toll.
But some sites are still intact and with ongoing love and funding, can remain as important natural assets on the Swan Coastal Plain. This site managed by the City of Rockingham is an example:
We also have other examples of Threatened Ecological Communities (TECs) like this Holocene Dune Swale Sedgeland: