Nature conservation

Threatened species

Stuttering Frog (Mixophyes balbus)

Saving our Species strategy

This species has been assigned to the Landscape species management stream under the Saving our Species (SoS) program.

Justification for allocation to this management stream

This species is distributed across relatively large areas and is subject to threatening processes that generally act at the landscape scale (e.g. habitat loss or degradation) rather than at distinct, defineable locations.

Conservation status

Management objectives

This SoS strategy aims to ensure that the species is secure in the wild in NSW and that its NSW geographic range is extended or maintained and maintain its conservation status under the BC Act.

Species sightings and management sites across NSW

The map below displays the species’ distribution in NSW, based upon the species’ geographic range, habitat distribution or area of occupancy (to as high a resolution as available data allow, using a range of data sources).

Information about the species’ habitat and ecology is available here.

The map may also display one or more management sites where management of important populations is underway. More information is available in the tables below.

Your search returned one or more sites that are restricted due to the sensitive nature of either the species or the site. Individuals involved in management on these sites can access detailed information via the database.


The species occurs in the following IBRA (Interim Biogeographic Regionalisation for Australia) regions in NSW:

New England Tablelands
NSW North Coast
South Eastern Highlands
South Eastern Queensland
Sydney Basin

Proportion of the species' distribution on reserve

33% of the species' distribution occurs on reserve (within NSW National Parks and Wildlife Service estate).

Critical actions for this species

The key threats to the viability of landscape-managed species are loss, fragmentation and degradation of habitat, and widespread pervasive factors such as impacts of climate change and disease. Many of these threats are addressed by NSW planning, native vegetation, and biodiversity legislation, policy and programs including the offsets program (BioBanking, NSW Biodiversity Offsets Policy for Major Projects), Biodiversity Certification, management of environmental water and reservation under the National Parks and Wildlife Act 1974.

Threats to this species are outlined here.

The actions listed in the action toolbox are supplementary to NSW legislation, policy and programs and can be used by stakeholders, where applicable to guide management at a site, regional or state scale.

Action toolbox

Action DescriptionScale
Collect and analyse samples from all monitoring programs for the species across the state, to test for the presence of chytrid fungus and improve understanding of disease spread throughout the species' range.State
Liaise with public and private land managers responsible for areas of forested habitat within the species' range, particularly where there is potential disturbance due to recreational use or other activity. Take measures such as reducing access to susceptible areas, to ensure that vegetation is maintained and disturbance is minimised around first and second order streams.Area
Implement feral animal control, using appropriate techniques, in catchments where these animals are having significant impacts on important populations.Area
Conduct targeted survey for the species in suitable habitat, across its historical range, including the south coast, southern ranges and Blue Mountains. Also document the distribution and any co-occurrence of yabbies.Area
Liaise with local canyoning groups and peak bodies to raise awareness about the species' importance and its potential occurrence in the area. Develop a waterproof brochure or app to facilitate identification and reporting of sightings by amateurs.Area
Liaise with agricultural landholders about the species' presence and the importance of reducing damage (e.g. from cattle) to and restoring riparian habitat. Where appropriate, negotiate agreements (preferably in-perpetuity covenants) to protect areas of habitat in the long term.Site
Conduct genetic research to resolve the taxonomy within this species. The outcome is likely to elevate the conservation status of resultant species.State

How will this species be managed?

Key management sites for this threatened species are being identified by the NSW Government and other program partners, where feasible, cost-effective and beneficial management actions can be undertaken. Currently, 4 management sites have been identified for this threatened species.

Management sites

Click on column headers to sort
Site nameSite typeStatusLocal government area (LGA)
Dorrigo and New England National Parks Priority management siteActive Armidale Regional, Bellingen, Coffs Harbour, Kempsey, Nambucca Valley 
Werrikimbe and Barrington Tops National Parks and Copeland Tops State Conservation Area Priority management siteActive Dungog, Kempsey, Mid-Coast, Port Macquarie-Hastings, Singleton, Upper Hunter, Walcha 
NSW Eastern Slopes and Ranges Contributing site (funding opportunity)Proposed Armidale Regional, Bellingen, Blacktown, Blue Mountains, Central Coast, Cessnock, Clarence Valley, Dungog, Glen Innes Severn, Hawkesbury, Hornsby, Kempsey, Lake Macquarie, Lithgow City, Maitland, Mid-Coast, Nambucca Valley, Newcastle, Oberon, Penrith, Port Macquarie-Hastings, Port Stephens, Singleton, Tamworth Regional, Tenterfield, The Hills Shire, Upper Hunter, Upper Lachlan Shire, Walcha, Wollondilly 
Watagans, Blue Mountains and Kanangra-Boyd National Parks Priority management siteActive Blue Mountains, Central Coast, Cessnock, Hawkesbury, Hornsby, Lake Macquarie, Lithgow City, Mid-Western Regional, Muswellbrook, Oberon, Singleton, The Hills Shire, Upper Hunter, Upper Lachlan Shire, Wingecarribee, Wollondilly 

Are you or is someone you know doing conservation work for this species or in this area?

Contact us to tell us about the work. Your input will help OEH evaluate the status of threatened species and provide a broader picture of conservation work across NSW.