This document is the background and introduction prepared in 2025 but updated in February 2026 for the collection of observations made between 1926 (the eariest comment dates to 1907) and 2014 at the University of Adelaide's TGB Osborn Vegetation Reserve, an enclosure situated in Koonamore Station, South Australia. The collection contains information on vegetation regeneration and status, kangaroo, and rabbit activity. Observations were initially compiled and delivered through the Terrestrial Ecosystem Research Network's data portal by Dr Russ Sinclair in 2014. The data made available through the TERN Data Discovery Portal (TDDP) in 2025 has been cleaned and revised by Dr Alison Specht to ensure the data are Findable, Accessible, Interoperable and Reusable. Version 2 added nearly 6,000 digital images to the collection, observations for which are in the TERN Data Discovery Portal (TDDP). These are available through the linked TERN EcoImages. The technical information for this upload describes the changes in Version 3. For access to original field records and photographs contact the School of Biological Sciences at Adelaide University and/or the University Archives. Acknowledgement is due to all the students, staff and researchers who have collected data at the site since its establishment, to those who have entered the data, and to the support of funders and interested parties, including Adelaide University.

This work is supported by Australia's Terrestrial Ecosystem Research Network (TERN) which is supported by the Australian Government through the National Collaborative Research Infrastructure Strategy, NCRIS.

V2 corrected some typographical errors V3 contains a correction of the area of Cassia corner, the addition of acknowledgements and updating of the species list as data files were refined.