Comprehensive biodiversity survey of Wategora Reserve and Everley Park along Duck River, western Sydney

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Thomas Mesaglio 


Although much of suburban Sydney is heavily urbanised, there are also many pockets of remnant vegetation scattered throughout the region, even in the most built-up areas. From 2020-2022 I conducted a comprehensive biodiversity survey of Wategora Reserve, and the riparian vegetation adjacent to Everley Park directly south of the reserve, a small fragment of remnant bushland on the western bank of the Duck River in western Sydney. Spanning the suburbs of Chester Hill, South Granville and Auburn, the total survey area is ~25 ha, and contains one of the most important remaining patches of the critically endangered ecological community Cooks River/Castlereagh Ironbark Forest of the Sydney Basin. During ~380 hours of surveying, I recorded 1932 species. In an additional ~60 hours of surveying since 10 November 2022, I recorded a further 137 species in the survey area. In this report, I present detailed maps and site information, discussions of threats and important processes in the survey area, and an annotated and illustrated checklist covering all observed species.



Life Sciences


biodiversity, survey, Sydney, urban ecology, iNaturalist


Published: 2022-12-09 19:32

Last Updated: 2024-02-01 19:39

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CC-BY Attribution-NonCommercial 4.0 International

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Data and Code Availability Statement:
All survey data available at