TGB Osborn Reserve: Saltbush Transect Surveys, 1989-2014

Four paired transects in the TGB Osborn (Koonamore) Vegetation Reserve provide a rare long-term record of saltbush (Atriplex spp.) encroachment from the eastern and southern boundaries. Data from 1989, 2003, 2008, and 2014 track the spread of Atriplex vesicaria and A. stipitata, following a standardized plant census. This dataset represents a reactivated monitoring program, with early historical data from the reserve's founding not available digitally.

Use Cases

• Analyzing rates of saltbush encroachment over a 25-year period based on transect measurements.
• Studying population dynamics of specific Atriplex species (vesicaria, stipitata) in a semi-arid reserve.
• Calibrating vegetation change models using a multi-decadal, spatially explicit time series.
• Assessing the effectiveness of reserve boundaries as barriers to shrubland expansion.

Strengths

• Provides time-series data from four specific survey years (1989, 2003, 2008, 2014) over a 25-year period.
• Uses a standardized taxonomic reference (Census of South Australian plants, algae and fungi, 2024).
• Data has been cleaned and formatted to FAIR standards in version 2.1, with ISO date formats and clarified metadata.

Limitations

• Key metadata such as row count, column names, file size, and license are not provided in the available sources.
• Early monitoring data from the reserve's initial years is noted as being unavailable digitally.
• The dataset's spatial scale is limited to four paired transects at a single reserve.

Provenance

Source

Adelaide University & Specht, A.; Terrestrial Ecosystem Research Network (TERN).

Collection Method

Field surveys conducted along reactivated line transects, with data digitized from field sheets.

Time Range

1989 to 2014

Freshness

Last updated 2026-05-22, with version 2.1 released on 2026-02-16.

Geography

TGB Osborn (Koonamore) Vegetation Reserve, South Australia, Australia.