Identifying and Mapping Prospective Koala Habitat on Woppa (Great Keppel Island), Queensland, to Explore Future Conservation Opportunities

This study assessed the suitability of Woppa (Great Keppel Island), Queensland, as potential koala (Phascolarctos cinereus) habitat by combining existing koala-habitat ranking datasets with satellite-derived vegetation-health indices to inform conservation planning. This exploratory analysis establishes a spatial baseline to guide future ecological surveys, cultural consultation, and restoration planning on Woppa. Analysis of the Koala Habitat Ranking (NESP) and Regional Ecosystems (RE) layers indicated that only 2.7% of the island’s vegetation is classified as high-quality koala habitat. Satellite-derived indices (NDVI and LAI) were used to evaluate the vegetation condition of these and other vegetated areas across wet and dry seasons; some high-ranked patches displayed comparatively greater resilience to seasonal stress; however, the remote-sensing data did not confirm the presence or abundance of key Eucalyptus species. Given the small extent of high-ranked habitat and projected climate stressors, the study does not recommend translocation. Instead, it emphasises the need for targeted ground-truthing to verify tree species and habitat structure, monitoring of vegetation health, habitat restoration where feasible, and co-designed decision-making with the Woppaburra People, including assessments of carrying capacity, genetic viability, and disease risk, before any reintroduction is contemplated.