Science

What makes Trigg Beach dunes environmentally valuable? What about weeds?  Are these ‘bush dunes’ – sometimes dry and scrappy looking in summer – really of importance?  See the report from Dr Judy Fisher here.

Studies worldwide show a high ‘willingness to pay’ among users of beach and coastline.  Users prefer “unspoiled” beach to “spoiled” beach in study after study.   Prof Paul Hardisty has estimated that any dimunition of quality of Trigg Beach and dunes could result in economic loss to residents and businesses of Scarborough (based on the 2013 boardwalk proposal).  See the report here.

What are parabolic dunes?  And what are parabolic nested dunes?  Dr Vic Semeniuk explains what this dune system is, and where it is at Trigg Beach – and why it is unique and important to preserve!  Re-direct to the Friends of Trigg Bushland page here.

Conservation history of South Trigg Beach Reserve – how and why it was earmarked for conservation and why it is a Class A reserve.  Re-direct to the Friends of Trigg Bushland page here.

Read the new Management Plan for Trigg Bushland and Bush Forever Site 308, available from the City of Stirling. According to the City of Stirling’s own research, the Reserve supports:
• 15 vegetation types as a direct result of the geology and topography of the site
• a total of 318 flora species, of which 216 are native species
• two priority listed flora species, namely Conostylis pauciflora subsp. euryrhipis (P4) and
Jacksonia sericea (P4)
• three threatened or priority ecological communities:
1. SCP 24 – Northern Spearwood shrublands and woodlands
2. SCP 29b – Acacia shrublands on taller dunes, southern Swan Coastal Plain
3. SCP 30a – Callitris preissii forests and woodlands, Swan Coastal Plain
• a total of 187 fauna species, including 122 birds, 41 reptiles, five amphibians and 19 mammals
• five fauna species are listed as threatened or in need of protection under the Wildlife
Protection Act 1950 (WA), with three also listed as endangered under the Environment
Protection and Biodiversity Conservation Act 1999 (Cwlth)
1. Calyptorhynchus banksia naso – Forest Red-Tailed Cockatoo
2. Calyptorhynchus latirostris – Carnaby’s Cockatoo
3. Isoodon obesulus fusciventer – Southern Brown Bandicoot (Quenda)
4. Neelaps ornatus – Black-striped Snake
5. Rostratula australis – Australian Painted Snipe
• migratory birds including the Rainbow Bee-eater (Merops ornatus), the Great Egret (Ardea alba) and the Cattle Egret (Ardea ibis)
• a diverse array of fungi species.

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