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Vine-thicket Fine-lined Slider (Lerista cinerea)

The Vine-thicket Fine-lined Slider is a small, fossorial skink from Queensland. It is mainly nocturnal and uses loose sandy loams beneath leaf litter and shrubs, so clearing can remove both its shelter and feeding habitat even when few animals are visible above ground.

Conservation status

Queensland, Nature Conservation Act 1992: Vulnerable.

Breeding season

No species-specific calendar is recorded for the Vine-thicket Fine-lined Slider. Related evidence indicates spring breeding in some sliders, with reproduction possibly continuing towards the end of summer, but clearing risk should be treated as present in every month until local survey data provide better timing.

Reproductive mode: Oviparous

Clutch size: 2 to 3 eggs, mean 2.4 eggs

Incubation: Not recorded

Size at hatching or birth: 31 mm snout to vent

Age at maturity: Not recorded

Nest or egg sites: Specific nest sites are not recorded. The species is associated with loose sandy loam beneath leaf litter and shrubs.

Breeding frequency: Not recorded

Confirm timing locally with targeted surveys and local rainfall and temperature records, because these triggers may affect breeding and surface activity.

  • Mating: No mating months are recorded for this species. Related evidence places breeding in spring, so September to November is shown as the likely period, without treating it as confirmed for this species.
  • Gravid females: Gravid females have not been recorded for this species. Based on related slider evidence, females may carry developing eggs during spring and into early summer, but the timing is unconfirmed.
  • Egg laying: Egg-laying months and nest sites are not recorded for this species. Related evidence indicates reproduction may extend from spring towards the end of summer, so September to December is shown as a planning window only.
  • Incubation: Incubation length and the months when eggs remain in nests or soil are not recorded. Treat eggs as potentially present in suitable sandy soil, litter and shrub cover throughout the year until local evidence establishes otherwise.
  • Hatchlings: Hatching timing and juvenile emergence are not recorded. The hatchling snout to vent length is 31 mm, so all months should be managed as possible periods for small, difficult-to-detect young.
  • Active period: The species is mainly nocturnal, but no active-season months are recorded. Treat suitable habitat as potentially occupied throughout the year and schedule searches at night as well as beneath ground cover.
  • Highest clearing risk: No month has evidence of lower risk. Clearing, soil disturbance and removal of litter or logs may harm adults, eggs or young in any month, particularly in loose sandy loam beneath shrubs.

Identification

This is an elongate, near-limbless lerista with only the hind legs retained. It is small, fossorial and mainly active at night, so daytime searches should focus on sheltering sites rather than exposed ground.

The greatest recorded snout to vent length is 72 mm. Adult females average 68 mm and hatchlings are about 31 mm. The maximum body mass is given as 2.79 g, but this value was calculated from body length and was not measured directly.

  • Look for an elongate skink with the front limbs absent or reduced to a stump and no more than two digits on each hind limb.
  • The species is associated with cryptozoic, fossorial behaviour and is mainly nocturnal.

Identification: Distinguishing features

The Mount Cooper striped lerista is distinguished from several similar near-limbless Lerista in northern Central Queensland by its broad, dark upper lateral band along the side of the body. Lerista cinerea, Lerista colliveri and Lerista wilkinsi can all have the front limb absent or reduced and two or fewer hind-limb digits, so a close examination is needed.

  • Do not rely on body shape alone when separating Lerista species in northern Central Queensland.
  • Potential records should be supported by clear colour photographs and, where required, tissue samples submitted to Queensland Museum for confirmation.

Identification: Field signs

The supplied sources do not describe reliable species-specific tracks, scats, calls, sloughs, eyeshine or other field signs. The most useful field evidence is therefore the animal itself, a clear photo voucher, or a specimen record linked to the precise sheltering site.

  • Record the exact location and habitat when an individual is found under litter, logs or other shelter.
  • Treat an unconfirmed record as requiring expert identification because several similar, near-limbless Lerista occur in the region.

Distribution: State and range

The supplied records place the species in Queensland, with a restricted mapped range and a decreasing population trend. No records from another Australian state or a named bioregion are provided in the source material.

Queensland is the only Australian state identified in the supplied records. The reported range size is 9,925 km², and the recorded elevation range is 343 to 411 m above sea level.

State identified: Queensland

Reported range size: 9,925 km²

Recorded elevation: 343 to 411 m above sea level

Named bioregion: Not provided in the supplied sources

  • Use the mapped project occurrence and nearby suitable habitat as the working distribution for impact assessment.
  • Do not extend the distribution into other states or assign a bioregion without a verified locality or authoritative mapping source.

Distribution: Documented localities and status

Genetic material and records listed in the supplied museum publication include Warrawee Station, Bletchington Park, Gregory Development Road, Rishton Scrub and Sellheim Scrub. These are documented sampling localities, not evidence that each site is a population stronghold.

Population size: Not known

Population trend: Decreasing

Global assessment: Near Threatened, assessed in 2017

Queensland listing: Vulnerable

  • The available data do not provide a national population estimate, local density estimates, home ranges or confirmed population boundaries.
  • The reported global assessment is Near Threatened, with a decreasing trend and the criteria B1ab(iii)+2ab(iii).

Habitat: Vegetation and ground layer

The species uses terrestrial, fossorial habitat in Queensland. Its known habitat description centres on loose soil beneath litter and shrubs, with records also associated with woodland and scrub sites.

Recorded broad habitat categories include forest, savanna and shrubland. The habitat description specifies loose sandy loams beneath leaf litter under shrubs, and the Queensland dataset includes open woodland.

Broad habitat categories: Forest, savanna and shrubland

Queensland habitat category: Open woodland

Key substrate: Loose sandy loams

Key cover: Leaf litter beneath shrubs

  • Retain patches of loose sandy soil, leaf litter and low shrubs when assessing habitat within a clearing footprint.
  • Inspect woodland and scrub remnants, including litter-rich areas that may look sparsely occupied at the surface.

Habitat: Elevation and structure

The recorded elevation range is 343 to 411 m. The species is described as terrestrial and fossorial, so soil condition and ground cover are likely to be more informative during site assessment than canopy structure alone.

  • Map intact litter and shrub patches as potential habitat, including areas beside existing access tracks or development corridors.
  • Avoid assuming that an absence of surface activity means that the soil and litter habitat is unoccupied.

Foraging habitat: Diet and feeding habitat

The Vine-thicket Fine-lined Slider eats small invertebrates and forages in the ground and litter layer. The supplied sources do not identify particular prey taxa, feeding distances or home ranges.

The recorded diet is carnivorous small invertebrates. Its cryptozoic and fossorial habits indicate that feeding habitat includes loose sandy soil beneath litter and around shrubs.

Food: Small invertebrates

Foraging setting: Fossorial and cryptozoic, beneath litter and around shrubs

Known prey plants: Not applicable, no plant diet recorded

  • Search leaf litter, loose soil and other ground cover rather than relying on open-surface observations.
  • Retain the litter and soil structure used by invertebrate prey when designing clearing limits and rehabilitation measures.

Foraging habitat: Foraging range

No species-specific foraging range, home range or density is recorded in the supplied datasets. Avoid applying a numerical buffer around a detection as though it represented the full feeding area.

  • Assess connected suitable ground habitat around each detection, not only the point where the animal was found.
  • Record the type and depth of litter, soil condition, shrub cover and nearby disturbance at each observation.

Breeding habitat: Breeding biology

The species lays eggs, but the supplied sources provide little information on breeding timing or nesting sites. Confirmed breeding habitat requirements should not be inferred solely from the presence of burrows or loose soil.

The species is oviparous. Clutches contain 2 to 3 eggs, with a mean of 2.4 eggs. The breeding season, incubation period, age at maturity and lifespan are not recorded in the supplied sources.

Breeding mode: Oviparous

Breeding season: Not recorded

Clutch size: 2 to 3 eggs

Mean clutch size: 2.4 eggs

Incubation period: Not recorded

Age at maturity: Not recorded

Lifespan: Not recorded

  • Treat loose sandy soil, litter and shrub cover as habitat features associated with the species, but do not describe them as confirmed nest sites without field evidence.
  • If eggs or a gravid female are found, stop disturbance in the immediate area and obtain species-specific advice before proceeding.

Breeding habitat: Habitat to retain

The documented habitat is loose sandy loam beneath litter under shrubs. These features should be retained as a precaution around known records because the available sources do not identify a separate nesting microhabitat.

  • Avoid stripping litter and topsoil from occupied or potentially occupied patches before targeted fauna searches.
  • Keep retained habitat connected where practicable, particularly where several records occur in nearby scrub or woodland remnants.

Sheltering habitat: Known refuges

This skink is fossorial and shelters in the ground and under surface cover. Shelter searches are more likely to detect it than daytime searches of exposed ground.

The species is reported from loose sandy loams beneath leaf litter under shrubs. General Lerista survey guidance recommends searching sheltering sites such as leaf litter and logs, combined with pitfall trapping where appropriate.

Burrow or refuge type: Fossorial shelter in loose sandy loam and beneath ground cover

Documented shelter cover: Leaf litter, logs and litter beneath shrubs

Known refuge dimensions: Not recorded

  • Inspect leaf litter, logs and other ground shelters carefully before they are removed or disturbed.
  • Search at night as well as checking shelters, because the species is mainly nocturnal and is unlikely to be active on the ground surface by day.
  • Use pitfall trapping and shelter searches as complementary methods where a targeted survey is required.

Sheltering habitat: Survey and handling

The species can be difficult to distinguish from similar Lerista. A suspected record should be supported by a good quality colour photograph, with tissue sampling and museum confirmation where identification remains uncertain.

  • Mark the shelter location before lifting cover and replace logs or litter after inspection where safe to do so.
  • Use a fauna spotter catcher experienced with small fossorial skinks for capture, identification and relocation decisions.

Threats: Clearing and fragmentation

The species has a restricted reported range and a decreasing trend. The supplied records identify decline in habitat quality through the assessment criteria, but do not provide a species-specific analysis of every threat pathway.

Clearing can directly remove the loose soil, litter and shrub cover used for sheltering and feeding. Fragmentation can isolate small habitat patches within the reported range, although the supplied sources do not quantify patch sizes or connectivity effects.

Assessment signal: Near Threatened, decreasing trend, criteria B1ab(iii)+2ab(iii)

Directly documented project threat: Loss and decline of habitat quality are consistent with the assessment criteria

  • Treat intact litter and soil beneath shrubs as potential habitat during pre-clearing surveys, even where the canopy is sparse.
  • Set clearing limits around confirmed habitat patches and avoid unnecessary removal of logs, litter and topsoil.
  • Inspect proposed access tracks, compound areas and linear infrastructure corridors because narrow works can still remove connected ground habitat.

Threats: Other disturbance pathways

Road mortality, altered fire regimes, introduced predators, disease and hydrology change are not specifically documented for this species in the supplied material. They should be considered during project risk assessment only where the site assessment identifies a plausible pathway.

  • Check whether road construction or increased traffic intersects known or potential habitat.
  • Record fire history and proposed fire changes where they may alter litter, shrub cover or loose soil.
  • Assess drainage, dewatering and runoff changes where they could change the soil or litter conditions used by the species.
  • Do not claim a predator, disease or hydrology impact without site evidence or a species-specific supporting reference.

Survey methodology: 1. Search sheltering sites at night

Vine-thicket Fine-lined Slider is a small, mainly nocturnal, fossorial skink that occurs in loose sandy loams beneath litter and shrubs. Surveys should combine night searches of sheltering sites with pitfall trapping, and should be designed and supervised by a qualified herpetologist because it can be confused with similar Lerista species.

Search leaf litter, logs and other ground shelters after dark, when the species is expected to move between sheltering sites. Focus on loose sandy loams beneath shrubs and other areas with suitable litter cover.

Searches should be undertaken by experienced personnel who can distinguish the fine-lined pattern and reduced-limb form from other Lerista species in northern Central Queensland.

  • Record the search date, start and finish times, weather, recent rainfall, ground conditions, search area and all sheltering sites examined.
  • Replace logs, rocks, litter and other shelters carefully after inspection, unless the approved fauna management plan requires them to remain open for capture or exclusion purposes.

Survey methodology: 2. Pitfall trapping with drift fencing

Use pitfall trapping in combination with searches of leaf litter and logs. The Australian reptile survey guideline identifies pitfall trapping and turning sheltering objects as suitable methods for crepuscular or burrowing Lerista species, and specifies six 10 litre buckets along a 15 metre fence as adequate for detecting the related Mount Cooper striped lerista.

That effort is a guideline example for a related species, not a species-specific effort recommendation for Vine-thicket Fine-lined Slider. The project ecologist should confirm the layout, number of lines and trapping duration against the proposed impact area and current regulatory requirements.

Guideline example: Six 10 litre buckets distributed along a 15 metre fence for a related Lerista species

Activity period: Mainly nocturnal

Habitat to target: Loose sandy loams beneath litter and shrubs

  • Place traps so that drift fencing intercepts animals moving between sheltering sites, while avoiding deep loose substrate collapse into the trap.
  • Provide suitable shelter and protection from sun, rain, flooding and predators in each trap, and check traps at least daily and more often where weather or animal welfare requires.
  • Do not leave traps operating when flooding, extreme heat or other conditions could injure captured animals.
  • Identify all Lerista captures from photographs and, where identification is uncertain, retain a suitable tissue sample and photo voucher for confirmation by the Queensland Museum or another appropriate state museum.

Survey methodology: 3. Record effort and confirm identification

Map each survey method and the area searched. Record trap locations, trap nights, search hours, weather, habitat condition and the identity of every Lerista captured or observed.

Potential records should be supported by clear colour photographs. Tissue samples and photo vouchers should be sent to the appropriate state museum where identification is uncertain, because several similar, near-limbless Lerista occur in northern Central Queensland.

  • Do not treat an unverified sighting as a confirmed Vine-thicket Fine-lined Slider record.
  • Record the exact project location, datum, observer, method, time, microhabitat and whether the animal was released or collected under authorisation.

Survey methodology: Minimum effort and reporting

  • Prepare a written survey design before fieldwork that states the search area, number of nights, search hours, pitfall line length, bucket number, trap nights, weather limits and identification procedures.
  • Use night searches and pitfall trapping together where the species or its habitat could be affected, rather than relying on daytime visual searches alone.
  • Stop or modify trapping when conditions create a foreseeable animal welfare risk, and document the reason and the time trapping ceased.
  • Submit confirmed records, including negative survey results where required by the approval, to the relevant Queensland wildlife database and provide records to the project regulator or consent authority.
  • Report uncertain records with photographs and, where collected lawfully, tissue samples to the Queensland Museum or another appropriate state museum for identification and databasing.
  • Retain field sheets, photographs, trap inspection records, specimen permits, animal handling records and spatial data with the project environmental records.

Before habitat disturbance: Avoid and minimise habitat loss

Plan the work around the species' small, localised habitat features. The available profile records a range size of 9,925 square kilometres, an elevation range of 343 to 411 metres and habitat including forest, savanna and shrubland, with individuals found in loose sandy loams beneath litter and shrubs.

Retain areas of loose sandy loam, intact leaf litter, low shrubs, logs and other ground cover wherever practicable. These features provide the burrowing and sheltering conditions recorded for the species.

Keep retained habitat connected to other suitable ground cover instead of isolating small patches with cleared areas, roads, hardstand or construction compounds.

  • Set out the clearing footprint before work and exclude retained shrub, litter and sandy-loam habitat from the footprint.
  • Keep machinery, spoil, access tracks, stockpiles and washdown areas out of retained habitat.
  • Use the smallest practicable work area and stage clearing so that retained habitat remains available while each stage is completed.

Before habitat disturbance: Check approvals and plan the works

Check the current Commonwealth and state conservation status before finalising the method statement. The supplied species profile records the species as not listed under the EPBC Act and records a Queensland state listing, while the Queensland dataset supplied with the profile gives a different conservation category. The project officer should confirm the current official listing rather than relying on either summary.

Obtain any required state permits for survey, trapping, handling, collection, relocation or destruction of habitat before fieldwork starts.

  • Complete the project's EPBC Act referral screening and retain the outcome in the environmental approval file, even where the species is not currently listed nationally.
  • Include this species in the fauna management plan, clearing limits, pre-clearance survey design, stop-work procedure and reporting schedule.
  • Stage clearing to allow identified individuals to be captured and moved before machinery enters retained habitat, subject to approval and advice from the relevant wildlife authority.

Before habitat disturbance: Prepare the site

Complete the approved pre-clearance survey using night searches and, where suitable, pitfall trapping before ground disturbance begins.

Mark the approved clearing boundary, retained shrubs, litter patches, logs, burrows and sandy-loam habitat so operators can see them from the work area.

  • Install exclusion fencing where it can prevent animals moving into the active work zone without blocking access to retained habitat or causing animals to shelter against the fence.
  • Brief machine operators and supervisors on the species' small size, nocturnal activity, burrowing habit and the location of no-go areas.
  • Confirm the authorised fauna spotter catcher's availability, equipment, release locations, veterinary contacts and incident escalation process before clearing starts.

During habitat disturbance: Daily clearing controls

Use slow, supervised clearing and maintain a clear chain of communication between the fauna spotter catcher, machine operator and site supervisor. The species is small and fossorial, so animals may be missed in surface inspections or exposed when litter, shrubs, logs or sandy soil are disturbed.

Inspect the work area at the start of each shift for animals, fresh burrow openings, disturbed litter and other fauna hazards before machinery moves.

Where work continues after dark, use lighting that allows the spotter catcher to inspect the ground without creating avoidable risks to workers or animals.

Keep clearing machinery outside marked exclusion areas and use low-speed, progressive clearing toward retained habitat where the approved fauna management plan specifies that direction.

  • Do not clear outside the approved footprint, remove marked habitat features or drive over retained litter and shrub patches.
  • Suspend work during heavy rain, flooding, unsafe heat or other conditions identified in the fauna management plan as unsuitable for capture or release.
  • Maintain exclusion fencing and repair any gap before work resumes.

During habitat disturbance: Fauna spotter catcher and machinery

The fauna spotter catcher should remain in a position where the active clearing face, ground surface and machine operator are visible. The operator must be able to stop immediately on the spotter catcher's instruction.

Use a staged sequence that removes above-ground vegetation and ground cover in manageable sections, allowing the spotter catcher to inspect exposed litter, logs, rocks, burrows and loose soil before further excavation.

  • Give the spotter catcher authority to call an immediate stop for an animal, suspected burrow, unexamined habitat feature or unsafe capture condition.
  • Keep the machine bucket, blade and vehicle wheels clear until the spotter catcher has completed the inspection of the next section.
  • Do not ask untrained workers to catch, move, injure or kill a Lerista.

During habitat disturbance: Animal finds and habitat features

Only an appropriately authorised and experienced person should handle or relocate the species. Keep handling to the minimum needed for identification, welfare and approved relocation.

Release a healthy animal into nearby retained habitat with suitable loose sandy soil, litter and shrub cover, at a location approved in the fauna management plan and close enough to retain local habitat continuity.

  • Place captured animals in clean, secure, ventilated containers with appropriate temporary shelter and keep them shaded and protected from heat, flooding, machinery and predators.
  • Do not excavate or destroy a suspected burrow until the spotter catcher and project ecologist have assessed it and the approved method allows the action.
  • Handle logs, rocks and litter slowly, inspect the underside and nearby soil, and replace them where practicable if they are retained.
  • Take injured animals to a veterinarian or approved wildlife carer as soon as practicable, following the project's permit and wildlife welfare requirements.
  • Do not relocate an animal outside its local retained habitat unless the relevant authority has approved that action.

During habitat disturbance: Stop work and records

Stop work immediately if a Vine-thicket Fine-lined Slider is found in the active work area, if an animal is injured, if identification is uncertain, or if clearing exposes a concentration of suitable burrows or sheltering habitat not covered by the approved method.

Resume only after the fauna spotter catcher, project ecologist and site supervisor have agreed on the action and any required regulator or permit-holder notification has occurred.

  • Record the date, time, exact location, photograph, habitat feature, identification confidence, handler, action taken, release location and animal condition for every find.
  • Record all stop-work events, injured or dead animals, escapes, trap incidents, breaches of exclusion areas and corrective actions.
  • Notify the relevant wildlife authority and approval holder of any reportable incident within the timeframe set by the approval or permit.
  • Update the clearing map daily to show completed areas, retained habitat, relocated animals and unresolved hazards.

After habitat disturbance: Post-clearance checks

Post-clearing work should check that no animals or suitable sheltering features have been left within active work areas and that retained habitat remains connected and functional. Use the approval conditions and fauna management plan to set the duration and frequency of follow-up monitoring.

Inspect the cleared edge, retained habitat and any areas disturbed around logs, litter, shrubs, burrows and loose sandy soil after each clearing stage.

Complete additional night searches where the pre-clearance survey or clearing observations indicate that animals may remain in the work area.

  • Check exclusion fencing, access gates and drainage points for trapped or isolated animals.
  • Inspect relocation sites for dead animals, predation, fire, erosion, flooding, weed invasion or loss of litter and shrub cover.
  • Document the final cleared area, retained habitat area, habitat features removed and all fauna incidents.

After habitat disturbance: Monitoring and reporting

Monitor retained and rehabilitation areas using the same locations and methods where practicable, so changes in detection are interpretable. Pitfall trapping should only continue under an approved design with appropriate animal welfare controls.

Compare post-work observations with the pre-clearance baseline, including habitat condition, shelter availability and confirmed records.

  • Report confirmed records, injuries, deaths, relocations, permit breaches and monitoring results to the approval holder and relevant state wildlife database where required.
  • Keep photo vouchers, tissue sample records, trap records, spatial data and correspondence with the project environmental file.
  • Review controls if animals are repeatedly found at the clearing edge, in drainage structures or within construction areas.

After habitat disturbance: Maintain commitments and offsets

Maintain retained habitat, exclusion fencing, weed control and access restrictions for the period specified in the approval or fauna management plan.

Apply any approved offset or habitat protection measure where residual impacts remain after avoidance and mitigation. Confirm its location, tenure, management actions and reporting requirements with the consent authority.

  • Do not remove temporary habitat protection measures until the project ecologist and approval holder confirm that the relevant risk has ended.
  • Escalate any failure of retained habitat or rehabilitation to the project regulator where approval conditions require notification.

Rehabilitation actions: Restore the ground layer and shrubs

Rehabilitation should recreate the ground structure recorded for Vine-thicket Fine-lined Slider rather than relying on canopy planting alone. The target is connected shrub and ground cover over loose sandy loam, with litter and sheltering features that support fossorial and nocturnal activity.

Use locally appropriate native shrub and ground-layer species from the pre-clearing community, with priority given to restoring the shrub cover and leaf litter conditions recorded for the species.

Reuse suitable salvaged topsoil, leaf litter, logs and rocks from the site where this can be done without spreading weeds, pathogens or contaminated material.

Avoid compacting rehabilitation areas, because the species is recorded from loose sandy loams and lives fossorially.

  • Rip or decompact compacted soil only where the approved rehabilitation design requires it and where erosion risk is controlled.
  • Shape the ground so that litter and loose soil remain in place and are not washed away from retained habitat.
  • Keep vehicle access, stockpiles and routine maintenance outside rehabilitation areas.

Rehabilitation actions: Reinstate shelter and connectivity

Place salvaged logs, rocks and coarse litter in connected patches beneath or beside shrubs to recreate sheltering sites used by Lerista species.

Maintain links between rehabilitated patches and retained habitat so animals can move through ground cover rather than crossing open hardstand or bare soil.

  • Inspect reinstated shelter features for stability, fire risk, weed contamination and animal entrapment.
  • Do not install nest boxes as a substitute for this species' recorded ground shelters unless they are required for another affected species and are separately justified.
  • Protect rehabilitated areas from grazing, repeated vehicle access, unnecessary slashing and uncontrolled fire.

Rehabilitation actions: Weed, predator and fire management

Control weeds that displace native shrubs, litter or loose ground cover, using methods that do not contaminate retained habitat or injure fauna.

Manage introduced predators and domestic animals in accordance with the approved rehabilitation plan where they threaten relocated or recolonising fauna.

Set fire management objectives that retain litter and shrub structure while meeting legal and safety requirements; avoid unplanned fire through rehabilitation areas.

  • Inspect rehabilitation after weed treatment, fire, flood and major storm events.
  • Repair erosion, bare soil, damaged fencing and loss of litter promptly.
  • Keep records of weed treatment, fire, predator control, rainfall or flood damage and corrective actions.

Rehabilitation actions: Measure success

Set success measures before rehabilitation begins, using the condition of nearby retained habitat as the reference where practicable.

Assess whether shrubs are established, loose sandy soil remains available, litter and shelter features persist, connectivity is maintained and no new barriers or drainage hazards have developed.

  • Repeat targeted night searches and approved trapping surveys at the intervals specified by the approval or rehabilitation plan.
  • Use the same survey methods and comparable effort at reference and rehabilitation sites where practicable.
  • Treat a confirmed record as useful evidence of occupancy, but do not use absence from a short survey as proof that rehabilitation has failed or that the species is absent.
  • Continue monitoring and corrective actions until the approval holder and relevant authority accept that the agreed habitat and fauna outcomes have been met.

Sources