Establishing the Eastern Bettong and Moving towards Coexistence

doi:10.1017/9781316221815.020

16 - Establishing the Eastern Bettong and Moving towards Coexistence

from Part II - Results

Published online by Cambridge University Press: 24 July 2026

Belinda A. Wilson ,

Don B. Fletcher ,

Brittany M. Brockett ,

Timothy Portas and

Edited by

Adrian D. Manning: Affiliation:
The Fenner School of Environment and Society, The Australian National University, Canberra, Australia

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Summary

This chapter presents the reintroduction biology of the eastern bettong (Bettongia gaimardi) at Mulligans Flat Woodland Sanctuary (MFWS), detailing strategies, tactics, and outcomes across establishment, growth and regulation phases. Adaptive management guided translocation planning, health monitoring and post-release assessments. Immediate-release tactics proved more effective than delayed-release, with high survival and reproductive success. Physiological stress, body condition and genetic diversity were tracked, revealing improved health and stable population dynamics. The population reached density dependence within six years, indicating successful regulation. Genetic monitoring confirmed retention of source diversity and highlighted the need for long-term sampling. A trial reintroduction beyond predator-proof fencing tested coexistence with invasive predators, introducing the ‘Goldilocks Zone’ concept for adaptive predator exposure. The chapter proposes ‘coexistence conservation’ as a long-term strategy to restore native species in landscapes where eradication of invasive predators is unfeasible, emphasising evolutionary adaptation and multi-stage trials.

Keywords

Eastern bettong (Bettongia gaimardi)Reintroduction biology Adaptive management Conservation translocation Physiological stress in wildlife Genetic monitoring Density dependence Predator-prey coexistence Goldilocks Zone (predation)Coexistence conservation Veterinary science safe haven beyond-the-fence Pathway to the wild

Information

Type: Chapter
Information: Rebuilding an Ecosystem
Integrating Applied Research and Restoration
, pp. 323 - 356

DOI: https://doi.org/10.1017/9781316221815.020 [Opens in a new window]

Publisher: Cambridge University Press

Print publication year: 2026

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