Forest Farm Natural Capital.
Koala Habitat and Population Asset Account.
Environmental Account: AU00063
Environmental Asset: Fauna - Koala Population & Habitat Condition
Asset Account ID: AU00063F1
Registration date: 22 January 2024
Certification date: 30 April 2025
Purpose: To reliably measure and track the condition of koalas to inform ecosystem and biodiversity uplift across the project area. This will be used to inform management decision-making and for participating in emerging biodiversity markets.
Current land use: Conservation.
Area: 105 ha
Method: AfN-METHOD-F-04
Asset Account snapshot.
Asset summary - baseline.
Asset statement.
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22 January 2024 - Registration date
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XX May 2024- Certification date
Significant outcomes.
Koala population (Component A)
The 2024 baseline Econd® score for the Native Fauna koala population (Component A) is zero. No koala activity was identified at the sampling sites for the baseline survey year 2024, in accordance with the SAT survey protocol.
Due to observed koala activity in some parts of the property, it was considered plausible that some activity may be observed in the assessment sites. In particular, it was initially hypothesised that some activity may be observed in the assessment units with more favourable habitat conditions; namely the eucalypt-dominant ex-plantation areas and, to a lesser extent, the remnant/regrowth areas. It was not anticipated that evidence of activity would be found in the hoop pine dominant ex-plantation or the cleared areas which have not yet been restored, due to unfavourable habitat conditions.
Despite the score of zero, at two sample sites, scratch marks were found on trees, which were consistent with koala behaviour. However, without the indicator of scat present, this evidence does not confirm koala activity according to the indicators as specified under this Method.
It is noted that management practices over the property have only more recently pivoted towards wildlife habitat restoration and conservation outcomes, with the strategic focus on koala habitat management. As such, this finding supports a conclusion that it takes time to restore habitat and encourage populations back to an area previously degraded, and for strategic management decisions to translate into re-emerging koala populations.
Koala habitat (Component B)
The 2024 baseline Econd® score for the Native Fauna koala habitat (Component B) is 43. Econd® scores were highest in the eucalypt-dominant ex-plantation areas (Assessment Unit: AUc-Euc), as to be expected given the dominant presence of locally important and ancillary tree species (Youngentob et al., 2021). These areas scored particularly high with respect to habitat quality relative to the other Assessment Units (pre-weighted raw Econd® of 62), captured through key features and indicators including number of usable trees and average tree height.
Remnant and regrowth (AUa) and hoop pine-dominant areas (AUc-HP) delivered a raw Econd® (pre-weighted) at 42 and 37 respectively, predominantly reflecting lower scores in the habit quality indicators. The raw (pre-weighted) Econd® for the cleared areas (AUc), is 17 and the lowest of all Assessment Units, with the lowest scores across all indicator classes from landscape context, habitat quality and presence of threats.
As a baseline assessment, the outcomes from this Asset Account describes a generally degraded and/or highly modified landscape from a koala population and habitat perspective. This is considered a fair reflection of the current state from the landholders’ perspective. The quality, condition and general habitat potential varies considerably across the property, reflected in the delineation of Assessment Units and the nature and characteristics of the ex-plantation areas. Historical land use practices across the property, including continuous cattle grazing and largely degraded monoculture plantations, has led to fragmentation of potential koala populations and habitat.
Overall, the property offers immense potential to provide core koala habitat. Recent, strategic management practice changes by the current landholders are focused on restoration, conservation and the transition of ex-plantation areas towards a permanent and functional forest. Whilst these changes may be clearly evident on the ground, it is noted that such changes take time to be reflected in key impact metrics, including koala population activity and improvements in koala habitat condition.
Limitations & disclosures.
This is a project scale assessment based on a targeted assessment of koala population and habitat condition and is unrepresentative of the quality and condition of native flora and fauna more generally.
The indicator for koala population condition is koala activity level (KAL) which is derived using the SAT (Phillips and Callaghan 2011). SAT is a standardised, widely practiced measure of koala activity levels. However, the SAT approach can yield false negatives particularly at lower population levels (Jiang et al 2019, Witt et al 2020), and therefore has inherent limitations on interpretation as a definite measure of presence or absence. The baseline survey was undertaken at the end of winter/early spring.
The Landowners observe that winter is a quiet time for koala activity on the property. Further, a significant rainfall event occurred during the autumn prior to the survey commencing, with 100ml of rain falling within 1 hour on 4 April, 2024, causing substantial flash flooding. It is plausible some koala activity evidence (scats) had been washed away by this event. This highlights a potential ongoing and heightened risk of false negatives, with climate change projected to increase the intensity of extreme rainfall events across the east coast of Australia (CSIRO, n.d.).
The Asset Account Team will continue to monitor advancements in techniques, tools and methods available for ensure the approach taken for the Account is current and represents best practice.
Environmental markets.
Australian Carbon Credit Unit (ACCU) Scheme project, registered with the Australian Clean Energy Regulator. More information can be found here:

Environmental Account.
Learn more about the Environmental Account.