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Peppered Tree Frog (Litoria piperata)

The Peppered Tree Frog is a small stream dwelling tree frog of the New England Tablelands in New South Wales. It may still persist in suitable habitat, but has not been reliably recorded since the 1970s, so any possible record on a clearing or construction site needs careful handling and verification. It is listed as Vulnerable under Commonwealth law and Critically Endangered in New South Wales.

Conservation status

Commonwealth, EPBC Act 1999: Vulnerable.

New South Wales, Biodiversity Conservation Act 2016: Critically endangered.

Breeding season

The Peppered Tree Frog is poorly known and has not been reliably recorded in the wild since the 1970s. Breeding is presumed during warmer months after reasonable rainfall, with the most useful survey window extending from October to February.

Breeding mode: Not recorded. The species is a frog that is presumed to breed in or near permanent rocky streams.

Breeding period: Presumed to occur during warmer months following reasonable rainfall.

Breeding places: Not recorded. Suitable breeding habitat is permanent rocky streams.

Clutch or spawn size: Not recorded.

Incubation and larval development: Not recorded. Larval ecology and tadpoles have not been described.

Age at maturity: Thought to be around 2 to 3 years.

Breeding frequency and young: Not recorded. No information is available on breeding frequency, fledging, weaning or dependence of young.

Timing may vary between years and regions because breeding is linked to warmer conditions and rainfall, and the species has no confirmed extant population or known breeding observations.

  • Breeding activity, warmer months after rainfall: Breeding is presumed during warmer months after reasonable rainfall, but the timing and intensity of breeding have not been confirmed.
  • Adult activity and shelter use near rocky streams: Adults have been found in streamside bushes, on creek-edge rocks and under rocks or fallen timber, but seasonal activity patterns are unknown.
  • Highest clearing risk: Treat October to February as the higher risk period because breeding may occur then, and eggs or tadpoles could be present in or near rocky streams.

Identification: Appearance and size

The Peppered Tree Frog is a very small frog with a dull, mottled appearance. Identification can be difficult because it belongs to a poorly resolved group of closely related leaf green tree frogs.

Adults grow to about 30 mm snout to vent length. The back is olive, grey green or slate coloured, with darker brown grey marbling, flecking or peppering.

The limbs and flanks may have white or cream flecks. The underside is white or light cream. The skin is generally smooth above, with scattered low tubercles, and granular below.

Body length: Up to about 30 mm

Dorsal colour: Olive, grey green or slate, with darker peppering or marbling

Ventral colour: White, cream or light cream

  • Finger and toe pads are broad and well developed.
  • Fingers have slight basal webbing and toes are about three quarters webbed.
  • The tympanum is distinct.
  • A faint dark stripe may run from the nostril through the eye and tympanum.
  • The second finger is longer than the first.

Identification: Calls and similar species

The advertisement call has not been recorded. Do not rely on call surveys alone to rule out the species.

The species forms part of a complex that includes the Pearson's Tree Frog, Broad palmed Frog and Leaf green Tree Frog. Genetic and morphological boundaries within this group remain uncertain. A frog that resembles the Peppered Tree Frog needs photographic and genetic confirmation.

  • Treat an unusual small, peppered tree frog as a potential Peppered Tree Frog until an experienced ecologist confirms its identity.
  • Do not collect a voucher specimen without the required approval.

Identification: Field signs and handling

There are no distinctive droppings, nests, whitewash, stains or odours to use as field signs. Direct observation of the frog is the most useful initial evidence.

Adults have been found in bushes and on rocks beside creeks. One daytime aggregation of 22 animals was recorded in cracks in a dead tree limb beside a stream.

  • Stop work near a suspected animal and keep people, vehicles and machinery clear.
  • Use photographs, a precise location and habitat photographs to support identification.
  • Handle frogs only when necessary, and follow frog hygiene procedures between sites.

Distribution: Australian range

The Peppered Tree Frog is endemic to Australia and has only been recorded in New South Wales. Its former range was on the Northern Tablelands, but the current distribution is uncertain because no current confirmed population is known.

Historic records extend from south of Armidale to the Gibraltar Range on the New England Tablelands. The species was recorded from five streams and from elevations of about 800 to 1120 m.

Former records include areas within Oxley Wild Rivers National Park, Gara River Nature Reserve, Mann River Nature Reserve, Mitchell State Forest and freehold or leasehold land near Glen Innes.

State records: New South Wales only

Historic extent: From south of Armidale to the Gibraltar Range

Historic elevation: About 800 to 1120 m

  • New England Tablelands, including the Armidale Plateau, Northern Tablelands basalt areas, Stanthorpe Plateau and nearby plateaux.
  • Parts of the NSW North Coast hinterland linked to the eastern escarpment and rocky streams.

Distribution: Current occurrence and site assessment

The species has not been reliably recorded since the 1970s, despite searches at historic sites and other suitable streams. It may be extinct in the wild, but unsurveyed suitable habitat means that persistence cannot be ruled out.

For a development site, map all permanent or semi permanent rocky streams and connected native vegetation, particularly above about 800 m in the former range. Do not assume that a lack of recent records means the site has no conservation significance.

  • Check historic records and local biodiversity databases before clearing or construction.
  • Treat suitable habitat within the former range as potential habitat until assessed by a suitably experienced ecologist.
  • Escalate any suspected record for expert identification and regulatory advice.

Distribution: Overseas range

The Peppered Tree Frog is endemic to Australia. No overseas range is recognised.

Habitat: Stream and landform features

Look for the species beside rocky streams flowing east from the New England Tablelands. The surrounding native vegetation is also relevant, because frogs may use stream edges and adjacent vegetation outside the presumed breeding area.

Historic records came from rocky streams on the dry eastern escarpment. Suitable areas may include permanent rocky streams, headwaters, creek margins, riffles and pools connected by flowing water.

Map the full stream corridor, including banks, rocky edges, fallen timber and adjacent native vegetation. Include seepages and small tributaries where they connect directly with suitable stream habitat.

  • Rocky, east flowing streams.
  • Permanent stream sections and connected pools.
  • Steep or dissected tableland margins and escarpment country.
  • Stream banks with rocks, logs, cracks and dense vegetation.

Habitat: Streamside vegetation

Recorded streamside vegetation includes Lomandra, Leptospermum and Casuarina. Other intact native vegetation beside the stream may also provide movement, feeding and sheltering habitat.

Retain vegetation at the top of bank and along both sides of the watercourse. The NSW survey guide uses a 500 m radius from the top of bank to incorporate associated plant community types for assessment purposes.

Assessment habitat polygon guidance: Include associated plant communities within 500 m of the top of bank, where applicable under the NSW assessment framework.

  • Avoid clearing, slashing or heavy machinery access through streamside vegetation.
  • Fence or otherwise protect the corridor from grazing stock where practical.
  • Keep connected native vegetation between the stream and nearby forest or woodland.

Habitat: Site condition

Historic habitat has been altered by streamside clearing, grazing and timber harvesting. A degraded site may still retain important shelter features such as rocks, logs, shaded banks and native regrowth.

Record canopy and understorey cover, bank condition, stream permanence, substrate, stock access, nearby forestry and any introduced fish. These observations help assess both habitat quality and likely threats.

  • Retain natural rocks and fallen timber in place.
  • Avoid sediment, chemical runoff and changes to stream flow.
  • Record barriers or disturbances that could isolate stream sections.

Foraging habitat: Places to search

The diet and detailed foraging behaviour of the Peppered Tree Frog are poorly known. As a small tree frog, it should be managed as an insect eating amphibian that may forage in vegetation and on moist surfaces beside streams.

Search bushes at creek edges, low streamside vegetation, rocks and fallen timber, especially in damp conditions after rain. Examine vegetation beside the stream as well as the immediate bank.

Daytime searches should include crevices in logs, gaps among rocks and dense Lomandra, Leptospermum or Casuarina near the water.

  • Low bushes and dense streamside plants.
  • Rock faces, rock piles and bank crevices.
  • Fallen timber, dead limbs and moist litter beside the creek.
  • Vegetation immediately above the top of bank.

Foraging habitat: Development controls

Avoid removing vegetation, rocks or logs that could provide feeding and refuge sites. Keep lighting, dust, sediment and chemical use away from the stream corridor.

Use low impact access routes and confine machinery to previously disturbed areas where possible. Inspect vegetation and ground shelter before moving materials or starting clearing.

  • Do not collect bushrock from potential habitat.
  • Retain fallen timber unless removal is required for safety and has been assessed.
  • Prevent herbicide, insecticide, fuel and other pollutants from entering the drainage system.
  • Use frog hygiene procedures when working between waterways.

Breeding habitat: Likely breeding habitat

Breeding places and larval ecology are poorly known. Breeding is presumed to occur in warmer months after reasonable rainfall, so works near suitable streams require extra care from October to January and after substantial rain.

The NSW survey guide identifies permanent rocky streams as suitable breeding habitat. The exact egg deposition sites, tadpole habitat and breeding behaviour remain unresolved.

Retain stream flow, pools, rocky margins, overhanging vegetation and water quality. Do not place spoil, sediment or construction materials in the channel or on the flood prone bank.

Indicative survey period: October to January

Presumed breeding conditions: Warmer months following reasonable rainfall

  • Permanent rocky streams and connected pools.
  • Shaded stream margins with native vegetation.
  • Clean water with natural stream substrates.
  • Adjacent native vegetation used by adults outside the water.

Breeding habitat: Works planning

Schedule intrusive works away from the indicative breeding period where practicable. If works must proceed, use a qualified amphibian ecologist to inspect the stream and adjacent vegetation before disturbance.

A suspected frog, egg mass or tadpole should be treated as a potential threatened species record. Stop the relevant activity and seek project specific advice before continuing.

  • Maintain natural drainage and avoid diverting or dewatering the stream.
  • Install and maintain erosion and sediment controls before earthworks begin.
  • Prevent machinery, concrete washout and chemicals from entering water.
  • Keep stock, workers and vehicles out of the stream wherever possible.

Breeding habitat: Confirmation and protection

Because the call and tadpole are not known, visual and genetic confirmation is needed for a reliable record. Take clear georeferenced photographs and arrange a skin swab through an appropriately authorised and experienced person.

Do not handle, move or retain animals unless necessary and authorised. Apply the highest level of care because the species is Critically Endangered in New South Wales and may have fewer than 50 mature individuals, or none.

  • Use experienced fauna personnel for searches and any capture.
  • Clean or change equipment between waterways.
  • Keep any captured frogs or tadpoles isolated and follow approved disease hygiene procedures.

Sheltering habitat: Shelter features

The Peppered Tree Frog uses small, concealed features beside streams. Shelter may be available in rocks, fallen timber, vegetation and cracks in dead limbs, so clearing should be staged and carefully inspected.

Adults have been found under rocks and fallen timber along rocky streams. They have also been recorded in bushes, on rocks at creek edges and in cracks in a dead tree limb beside a stream.

These features can be difficult to see during routine clearing. Search by hand or with low impact methods before removing logs, rocks or dense vegetation.

  • Rocks and natural rock piles.
  • Fallen timber and dead limbs with cracks.
  • Dense Lomandra, Leptospermum, Casuarina and other native streamside plants.
  • Moist crevices along banks and beneath ground cover.

Sheltering habitat: Clearing practice

Retain natural rocks and fallen timber in their original setting. If a feature must be disturbed, stop and obtain advice from the fauna ecologist before moving it.

Use a staged clearing approach. First mark exclusion areas, then inspect the work zone and relocate machinery access away from the stream and its bank.

  • Establish no go areas around rocky streams and intact streamside vegetation.
  • Do not stockpile soil, logs, rocks or materials in the riparian corridor.
  • Avoid burning or collecting firewood in potential habitat.
  • Use spotters during vegetation removal and immediately report suspected frogs.

Threats: Habitat loss and degradation

The species has suffered a major apparent decline, but the causes are not settled. On development and land management sites, protect stream habitat, shelter features, water quality and disease security as the main practical safeguards.

Clearing streamside vegetation, grazing and timber harvesting have altered historic habitat. Trampling can damage banks, vegetation and shelter, while removal of rocks and fallen timber reduces available refuge.

Keep the stream corridor intact and prevent stock or machinery from entering sensitive areas.

  • Avoid clearing streamside vegetation.
  • Fence or manage stock access to creek margins.
  • Retain bushrock, logs and dead timber in place.
  • Prevent erosion, sedimentation and changes to natural drainage.

Threats: Water pollution and chemicals

Herbicides, insecticides and other chemicals used near streams may harm frogs directly or degrade their habitat. Fuel, concrete washout, sediment and contaminated runoff also need strict control.

Use non chemical methods where practical and maintain effective exclusion and spill controls around waterways.

  • Store fuels and chemicals away from drainage lines.
  • Prevent spray drift and runoff into streams or wetlands.
  • Inspect erosion and sediment controls after rain.
  • Stop work and contain any spill promptly.

Threats: Introduced fish

Eastern Gambusia and salmonids have been introduced into streams within the former range. These fish may prey on eggs or larvae, and trout affect related stream frogs.

Record introduced fish during site assessments and seek advice before any proposed stocking, translocation or waterway modification.

  • Do not move fish, water or aquatic material between catchments.
  • Avoid creating new permanent pools that could favour introduced predators.
  • Maintain natural stream connectivity and water quality.

Threats: Disease and uncertain decline

Chytrid disease is a recognised threat to Australian frogs and may have contributed to the disappearance of the Peppered Tree Frog. Increased ultraviolet radiation, drought and other factors have also been considered.

Use strict hygiene at every site. Clean or change boots, equipment and tyres before and after visiting frog habitat, and minimise handling.

  • Follow the current NSW frog hygiene protocol.
  • Use dedicated or disinfected equipment between waterways.
  • Do not release captive, moved or transported frogs into the wild.
  • Report any suspected record promptly to the relevant NSW environment authority.

Survey methodology: 1. Desktop assessment

The Peppered Tree Frog has no known extant population and has not been reliably recorded since the 1970s. Surveys should therefore be treated as searches for a very rare, possibly extinct species, with visual and genetic confirmation required because its call and tadpole are not reliably known.

Map permanent rocky streams flowing east from the New England Tablelands, streamside native vegetation and connected habitat. Include rocks, fallen timber, creek-edge bushes and other likely daytime refuges.

Review historical records, predicted habitat, conservation mapping, land tenure, recent frog records and any nearby populations of related leaf green tree frogs.

Treat habitat within 500 metres of the top of the bank as relevant for NSW threatened frog assessment where it supports associated plant community types. This is a habitat assessment polygon, not an automatic construction exclusion zone.

Known Australian distribution: New South Wales, from south of Armidale to the Gibraltar Range

Recorded elevation: 800 to 1,120 m

Likely survey period: October to January, with warmer months after reasonable rainfall also relevant

  • Confirm whether the project may affect a Commonwealth listed species or a NSW threatened species credit.
  • Check the current NSW Biodiversity Assessment Method requirements, including additional requirements that apply where the species is considered at risk of a serious and irreversible impact.
  • Map potential breeding streams and adjacent native vegetation before finalising the work area.

Survey methodology: 2. Nocturnal survey

Use suitably qualified and experienced frog surveyors. Survey permanent rocky streams and adjacent native vegetation during suitable weather, preferably after rainfall and during the first two to three hours after sunset.

Use an aural and visual survey. The species call is unknown, so do not rely on call detection or call playback alone.

For a full threatened frog survey, search a 500 metre transect with four independent survey nights. Allow at least 120 minutes per night, with the first and last surveys at least 14 days apart.

At each 50 metre section, listen quietly before searching. Use a headlamp of at least 200 lumens for visual searches. Search creek edges, bushes, rocks, fallen timber and cracks in dead limbs beside the stream.

Full survey effort: 500 metre transect, 480 minutes total, four repeat surveys

Survey timing: October to January, generally within the first two to three hours after sunset

Survey spacing: Listening and visual search points at 50 metre intervals

  • Where a 500 metre transect cannot be achieved, document the shorter transect and obtain advice from the relevant regulator or approval authority before relying on the result.
  • Repeat surveys on different nights and vary weather conditions within safe and suitable limits.
  • Use the 200 metre transect and two-night approach only where it is specified by the applicable approval, survey guide or regulator.

Survey methodology: 3. Confirmation and hygiene

Photograph any suspected animal from several angles without handling it unless necessary. Record the location with a GPS and preserve the original image files.

Arrange species confirmation by an appropriately qualified amphibian taxonomist. Collect a skin swab for DNA confirmation only under the relevant authority and hygiene protocol. Do not collect a voucher specimen without specific approval.

Clean or change footwear, gloves, equipment and other items between sites. Wash down machinery when moving between sites. Keep captured frogs and tadpoles isolated.

  • Use fresh disposable gloves for each animal and site.
  • Handle frogs only when absolutely necessary, and keep handling time as short as possible.
  • Report a credible record promptly to the NSW biodiversity authority and the project approval holder.
  • Record surveyors, dates, start and finish times, weather, rainfall, transect length, effort, habitat, animals detected and photographs or DNA samples collected.

Before habitat disturbance: 1. Approvals and permits

Plan the project around the stream and its surrounding native vegetation. Avoiding habitat is the strongest protection for a species that may have fewer than 50 mature individuals, or none remaining in the wild.

Check the NSW threatened species and biodiversity assessment requirements before clearing, excavation, stream works or removal of rocks and timber.

Refer the action under the Environment Protection and Biodiversity Conservation Act if the action may have a significant impact on the Commonwealth Vulnerable species. Do not assume that the absence of recent records removes the referral risk.

Obtain any required NSW licences, biodiversity approvals, scientific licences and fauna handling authorisations. A fauna spotter catcher must hold the authority required for the work and the relevant species group.

For work in Queensland, check whether a species management program is required where work may tamper with a protected animal's breeding place. Confirm the equivalent permit and approval requirements in any other state before work starts.

  • Keep approval conditions, permits, contact details and stop-work procedures at the site office.
  • Have the project ecologist confirm whether the proposed action affects mapped habitat, a watercourse or a potential breeding place.
  • Do not rely on a general fauna handling licence as permission to clear threatened frog habitat.

Before habitat disturbance: 2. Avoid and protect habitat

Keep permanent rocky streams, stream banks and native vegetation outside the work footprint wherever practicable. Retain rocks and fallen timber in their natural position.

Do not clear streamside vegetation for access, laydown areas or temporary drainage. Fence the retained habitat and mark it clearly before machinery arrives.

Prevent stock, vehicles, sediment, concrete washout, fuels, herbicides, insecticides and other chemicals from entering the stream or its margins.

Treat the 500 metre top-of-bank habitat polygon as a planning trigger. Set a project-specific no-go area through the approval process, rather than applying the polygon as an assumed statutory buffer.

  • Use existing tracks and crossings where possible.
  • Keep spoil, materials, fuel and washdown areas away from streams and retained frog habitat.
  • Install sediment and erosion controls before ground disturbance.
  • Do not remove bushrock or firewood from potential habitat.

Before habitat disturbance: 3. Pre-clearance survey and timing

Complete the approved pre-clearance survey immediately before disturbance, using the nocturnal methods in the survey plan. Give greater attention to searches after reasonable rainfall during the warmer months.

There is no confirmed migration period and no confirmed breeding season. Breeding is presumed to occur in warmer months after reasonable rainfall, so avoid stream disturbance during these conditions where the project can do so.

Search all rocks, fallen timber, creek-edge bushes and dead limbs that will be disturbed. Inspect the aquatic edge and adjacent native vegetation before removing any shelter feature.

Brief the ecologist on the uncertainty around identification. Any suspected Peppered Tree Frog requires photographic and genetic confirmation.

  • Complete a daily visual check of the exclusion area before machinery enters.
  • Record negative survey results as carefully as positive results.
  • Stop and obtain ecological advice if a suspected animal, tadpole or breeding activity is found.

Before habitat disturbance: 4. Induction and exclusion

Induct all workers, operators, supervisors and subcontractors before they enter the work area. Show them photographs, habitat features, exclusion fencing and the stop-work contact.

Give the fauna spotter catcher clear authority to stop work for an animal, potential breeding place, damaged exclusion fence, pollution event or unexpected habitat impact.

Use robust exclusion fencing around retained streams, native vegetation, rocks and fallen timber. Inspect fencing after rain, vehicle movements and heavy work.

Keep lighting, noise and vibration away from retained creek habitat as far as practicable.

  • Mark no-go areas with signs that state the restriction and contact number.
  • Maintain clean footwear and equipment at entry points.
  • Keep an approved wildlife container, clean gloves, torch and transport contacts available for authorised fauna staff.
  • Do not allow workers to move frogs, tadpoles, rocks or timber without direction from the fauna spotter catcher.

During habitat disturbance: 1. Sequential clearing

Work slowly from the cleared edge towards the retained habitat. The fauna spotter catcher should remain able to stop the task and should have a direct line to the site supervisor and project ecologist.

Clear in stages, starting away from the stream and moving towards retained habitat. Keep the fauna spotter catcher ahead of machinery and within a position where animals and shelter features can be checked safely.

Remove vegetation, rocks and fallen timber only after inspection. Lower or roll habitat features carefully rather than dropping, dragging or crushing them.

Keep machinery out of the stream and its banks unless the approved method specifically allows access. Use the smallest practical work area and reinstate temporary access promptly.

  • Inspect each work area before clearing and again after the area has been opened.
  • Pause work during heavy rain, flooding, unsafe conditions or when visibility is inadequate for the approved method.
  • Maintain sediment, chemical and stock exclusion controls throughout the activity.

During habitat disturbance: 2. Animal, breeding place or refuge found

Stop work immediately if a suspected Peppered Tree Frog, tadpole, eggs, breeding activity or an important refuge is found. Keep people, vehicles and pets away from the location.

The fauna spotter catcher must not move the animal unless authorised under the permit, approval and fauna handling procedure. Obtain confirmation and instructions from the project ecologist and regulator where required.

Do not disturb an active breeding place. Establish a temporary exclusion area defined by the ecologist and approval conditions, then review the work method before restarting.

  • Photograph and georeference the find.
  • Record the habitat feature, animal condition, time, weather and work activity underway.
  • Do not collect eggs or tadpoles, drain water or remove rocks and timber from the location.
  • Resume work only after the fauna spotter catcher and project ecologist have released the area in writing or under the approved site procedure.

During habitat disturbance: 3. Handling and injured animals

Only an authorised and trained person may handle a frog. Use clean, powder-free gloves and follow the approved amphibian hygiene protocol.

Place an animal temporarily in a clean, secure, suitable container only when handling is authorised and necessary. Keep it cool, shaded, quiet and isolated from other animals.

If an animal is injured, stop nearby work and contact the nominated wildlife carer, veterinarian or state wildlife authority. Do not apply treatment or release it without direction.

  • Do not handle frogs with bare hands.
  • Do not move an animal across a water catchment or to an unapproved release site.
  • Record the animal's condition, container time, treatment advice, release location and person responsible.

During habitat disturbance: 4. Work records and stop-work events

Keep a daily fauna log for all searches, finds, relocations, injuries, breeding places, exclusion zones and stop-work events. Link each record to a map and work activity.

Report any suspected record through the approval and NSW biodiversity reporting pathway. Notify the Commonwealth regulator if required by the EPBC approval or referral conditions.

Record any damage to streamside vegetation, rocks, fallen timber, water quality controls or exclusion fencing, and rectify it before the next work stage.

  • Record negative results as well as detections.
  • Keep photographs, GPS files, DNA sample details, permits and correspondence with the project environmental records.
  • Escalate repeated stop-work events or unexpected habitat impacts to the project manager and approval holder.

After habitat disturbance: 1. Post-clearance checks

Do not treat completion of clearing as completion of fauna management. Check the site, confirm that controls remain effective and close out every animal, habitat and approval record.

Inspect the cleared area, retained stream margins and exclusion fencing after each clearing stage and again when the work area is handed back.

Search for trapped, injured or overlooked frogs around stockpiles, trenches, pipes, erosion controls, temporary pools and disturbed creek edges. Use an authorised fauna handler for any capture.

Check that no rocks, fallen timber or native streamside vegetation have been removed from retained habitat.

  • Close or cover trenches and pits when unattended, or install fauna escape measures approved by the ecologist.
  • Remove temporary materials that could trap frogs.
  • Repair fencing, sediment controls and stream protection immediately after damage.

After habitat disturbance: 2. Monitoring and relocated animals

If an animal was confirmed or relocated, follow the project-specific monitoring and release plan. Record its release location, habitat condition and any subsequent observations.

Where a population is confirmed, survey nearby streams and similar habitat to determine its extent, as recommended for this species. Use the same methods where practicable so results can be compared.

Do not assume that a relocated frog has established successfully. Monitor the release area only under an approved plan and with strict hygiene controls.

  • Use visual searches because the species call is unknown.
  • Keep release sites connected to suitable native vegetation and rocky stream habitat.
  • Do not introduce frogs, tadpoles or eggs to new sites without explicit approval.

After habitat disturbance: 3. Reporting and close-out

Prepare a fauna completion report for the project manager and approval authority. Summarise survey effort, weather, habitat affected, animals found, handling, injuries, relocations, breeding places, incidents and corrective actions.

Submit statutory reports within the time required by the approval, permit or licence. Store georeferenced photographs, DNA records and field sheets with the project spatial data.

Compare the completed footprint with the approved footprint. Escalate any unapproved clearing, stream impact, chemical spill or damaged exclusion area.

  • Include a map of retained habitat, disturbed habitat and any exclusion zones.
  • List outstanding rehabilitation actions and the person responsible for each action.
  • Record lessons from the work and update the induction and fauna management plan before the next stage.

After habitat disturbance: 4. Incident review

Review any mortality, injury, disease concern, breeding-place disturbance or hygiene failure with the project ecologist and fauna spotter catcher.

Identify whether the work method, timing, supervision, access route or exclusion controls contributed to the incident. Change the method before similar work continues.

Notify the relevant regulator where required and retain evidence of the response.

  • Quarantine equipment if chytrid contamination is suspected.
  • Do not move potentially contaminated water, mud, frogs or tadpoles between sites.
  • Update the site risk assessment and toolbox briefing after the review.

Rehabilitation actions: 1. Restore stream and vegetation

Rehabilitation should rebuild the streamside habitat that this frog is known to use. Focus on clean water, native vegetation, natural shelter and connected habitat, while recognising that its breeding sites and artificial habitat requirements remain poorly understood.

Re-establish native vegetation along the stream and its adjacent habitat using local provenance species suited to the site. Restore the structure of creek-edge bushes and ground cover.

Stabilise banks with low-impact methods and keep earth, mulch, sediment and chemicals out of the water. Reconnect disturbed sections with surrounding native vegetation.

Replace removed rocks and fallen timber only where the rehabilitation design and ecologist support it. Place material in natural settings without blocking flow or creating hazards.

  • Control grazing and exclude stock from recovering streamside vegetation.
  • Prevent new tracks, firewood collection and bushrock removal in the rehabilitation area.
  • Use weed control methods that avoid spray drift and chemical entry into the stream.
  • Inspect after rainfall and repair erosion or failed controls promptly.

Rehabilitation actions: 2. Breeding habitat and artificial structures

Permanent rocky streams are the identified breeding habitat, but egg deposition, larval habitat and breeding structures are not known for this species. Protect and restore natural stream habitat before considering artificial structures.

Do not install nest boxes, bat boxes, artificial nests or roost structures as a substitute for stream protection. These structures are not established breeding or roosting requirements for the Peppered Tree Frog.

If a confirmed population shows use of a particular refuge, such as cracks in a dead limb, develop any replacement feature with the project ecologist and relevant authority. Match the natural feature and monitor its use before relying on it.

  • Do not create ponds or temporary pools without an amphibian ecologist's design and approval.
  • Do not stock rehabilitation water bodies with fish.
  • Remove introduced predatory fish only through an approved management program and with appropriate aquatic approvals.
  • Keep natural rocks, timber and creek-edge vegetation in place wherever possible.

Rehabilitation actions: 3. Water, weeds and lighting

Maintain clean, flowing or permanent rocky stream habitat and protect it from sediment, nutrients, chemicals and altered drainage.

Control weeds by hand removal or other low-risk methods where practicable. Where chemicals are necessary, use the least harmful approved method and prevent spray, runoff and wash water entering frog habitat.

Use low-spill, shielded lighting directed away from the stream and retained vegetation. Switch off temporary lighting when work does not require it.

  • Keep fuel, concrete washout and chemical storage outside the stream protection area.
  • Use clean water and clean equipment when working in or near frog habitat.
  • Inspect rehabilitation areas for algal growth, sediment deposition, erosion and fish introduction.
  • Maintain stock fencing and access controls until vegetation is established.

Rehabilitation actions: 4. Long-term monitoring

Monitor revegetation, bank stability, water quality, shelter features, weeds and introduced fish for the period required by the approval. Use repeatable photo points and mapped inspection locations.

If the species is confirmed, continue targeted nocturnal visual surveys during October to January and after suitable rainfall. Because the call is unknown, use photographs and genetic confirmation for suspected detections.

Set monitoring objectives with the approval authority and ecologist. A successful rehabilitation outcome is not demonstrated by vegetation cover alone, particularly for a species with unknown breeding ecology.

  • Record vegetation establishment, stream condition, shelter retention and any frog or tadpole observations.
  • Maintain hygiene controls during every monitoring visit.
  • Report confirmed detections promptly and review protection measures for the entire connected habitat.
  • Continue weed, grazing, erosion and fish controls after the construction contractor leaves the site.

Rehabilitation actions: 5. Adaptive management

Use monitoring results to adjust water protection, grazing exclusion, weed control, lighting, access and habitat restoration. Seek regulator approval before changing an approved rehabilitation or relocation method.

Treat any confirmed Peppered Tree Frog record as a trigger for immediate review of nearby works and connected habitat. Protect the record location and investigate the surrounding streams with qualified specialists.

Share validated records with the relevant biodiversity authority so the species distribution and management approach can be updated.

  • Review the rehabilitation plan after each monitoring round.
  • Retain funding and responsibility for maintenance beyond practical completion.
  • Do not claim breeding success unless breeding, larvae or recruitment have been confirmed by qualified specialists.

Sources