Flora survey with Tjiwarl Rangers near Sir Samuel
The Sir Samuel area is in the arid Murchison bioregion, a fragile ecosystem that depends on ephemeral streams and groundwater reserves. Native plants here are resilient but susceptible to disturbance, so environmental monitoring is needed given the pressures of mining and climate change.
The team carried out a snapshot observational survey across ecologically significant communities to assess the prevalence of Priority and invasive plant species.
Method and mapping
- Digital tools: species were catalogued with photographs and habitat details
- Targeted evaluation: the survey assessed the prevalence of Priority 4 species and identified invasive plants, which threaten native biodiversity.
The field data was converted into GIS maps showing the distribution of native and non-native species across the survey area. These maps support regulatory reporting and targeted weed management.
Science and traditional knowledge
The Tjiwarl Rangers shared cultural knowledge throughout the study. With their approval, we documented culturally significant plants and their traditional uses, so that the environmental management plan reflects both scientific and cultural understanding of the land.
We also proposed and documented monitoring sites in ecologically sensitive areas as a basis for future monitoring by the community and environmental consultants.
Outcomes
- A Priority 4 species was identified and documented.
- A significant invasive plant species was mapped.
- A catalogue of culturally important plant species was compiled, reflecting the Native Title Holders' knowledge.
Contact Trace Enterprises to discuss flora surveys or environmental monitoring in Western Australia's remote bioregions.
