What are coastal and intertidal shore ecosystems?
Often lashed by the wind laden with salt spray, the coast is very dynamic and a difficult environment for living things, with some of its physical features such as dunes and cliffs subject to continual change. Exposure to the power of large waves generated in the Southern Ocean has produced the rugged, eroded landforms that characterise much of our western coastline. In more sheltered areas there are a wide range of other habitats.
Wind, salt, and unstable low nutrient soils made largely of sand that hold little water are the critical influences on the vegetation of the coast and plant communities growing in these areas have evolved a range of strategies to help them cope with this challenging environment.
Plant communities typically found along the coast are:
- Coastal Dune Scrub –includes plants well suited to the most exposed section of the coast and include many pioneering dune binding plants such as Hairy Spinifex (Spinifex hirsutus)
- Coastal Moonah Woodlands – often growing on calcareous dunes and cliffs on the coast dominated by the Coastal Moonah (Melaleuca lanceolata subsp. lanceolata)
- Coastal Banksia Woodland – restricted to near coastal localities on secondary dunes behind Coastal Dune Scrub, these areas are dominated by a woodland over story of Banksia tees
- Coastal Saltmarsh – in flatter areas of low energy coastlines some areas are dominated by succulent plants that can cope with high salinity soils and some inundation and exposure to salt water and poor drainage.
- Hardy shrubs such as Coast Tea-tree, Coast Beard-heath, Seaberry Saltbush and Coast Wattle occur on secondary dunes or exposed rock headlands
- Moonah, Boobialla, Drooping She-oak and Coast Banksia are found on the stabilised dunes and swales on the landward side
- The most prominent group of large coast dwelling animals are birds such as Orange-bellied Parrot and Pied Oystercatcher which depend directly on saltmarsh plants or a wide range of invertebrates (animals without backbones) for food
- The Little Penguin and Short-tailed Shearwaters (Muttonbirds) nest in burrows in the dunes.
- Issues related to impacts from increasing visitor use, combined with edge effects from urban development are key threats to this ecosystem.
- Rising sea levels and greater frequency of storm events due to climate change may impact on vegetation, estuaries as well as coastal assets.
Where do I find the coast and intertidal shores?
27 Mar 2015
Visitors to Wilsons Promontory National Park this Easter will see works are underway to replace the old ‘Lorikeet Flats’ accommodation. The previous flats were demolished following the 2011 floods. District Manager, Graeme Baxter said it was exciting to see the $1.8 million project underway which will see ten new family-friendly…
30 Mar 2015 12:00am - 10 Apr 2015 12:00am
The holiday discovery program at Wilsons Promontory National Park offers an exciting array of activities for all ages exploring our marine and coastal environments. Become a bush detective, explore rock pools at low tide, decorate a take home reusable bag with stencils of native plants, look through binoculars at the…
30 Mar 2015 8:30am - 1 Apr 2015 6:00pm
Come join our Grampians Naturewise holiday experience in Victoria! You'll join park rangers to track and protect the elusive Brush-tailed Phascogales. Go behind the scenes and enjoy the breathtaking landscape with local walks while assisting with endangered species monitoring. The Grampians National Park has recently captured footage of a rare…
1 Apr 2015 - 30 Apr 2015
A wide variety of events are held at Albert Park throughout the year. Events range from fun runs and sporting tournaments to other community events. See the full calendar here.
3 Apr 2015 9:30am-3:00pm
Children aged three to 12 can take part in one of the many egg hunts throughout the day, make Easter gifts at the Arts and Crafts tent and will be able to visit the carnival area complete with pony rides, face painting and sack races. The lovable Cadbury Easter Bunny…