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Rochford Slider (Lerista rochfordensis)

The Rochford slider is a small, burrowing skink known only from dry rainforest and vine thicket patches in northern Queensland. Its loose soil habitat can be affected by clearing, roadworks, fire and ground disturbance, so any record or suitable habitat on a work site should be treated carefully. The species is listed as Endangered under both Queensland and Commonwealth legislation.

Conservation status

Commonwealth, EPBC Act 1999: Endangered.

Queensland, Nature Conservation Act 1992: Endangered.

Breeding season

The Rochford slider is poorly known, and no species-specific breeding calendar has been established. For northern Queensland works, treat suitable vine-thicket and friable-soil habitat as potentially occupied throughout the year, with activity likely to vary with rainfall and local conditions.

Breeding mode: Not recorded.

Clutch or litter size: Not recorded.

Incubation or gestation: Not recorded.

Fledging or weaning: Not recorded.

Age at maturity: Not recorded.

Breeding place: Not recorded. Individuals have been found in friable soil beneath logs, but breeding sites have not been described.

Breeding frequency: Not recorded.

Survey results may vary between years and regions, particularly with rainfall, soil conditions and the amount of suitable habitat searched.

  • Potential breeding activity: No breeding months are confirmed, so plan for potential mating and egg laying in every month.
  • Potential eggs and dependent young: The timing and location of eggs or young are unknown, so avoid assuming that winter works are low risk.
  • Sheltering and local activity in soil and under logs: Individuals may shelter in loose friable soil and beneath logs in dry rainforest or vine-thicket habitat throughout the year.
  • Highest clearing risk: Treat all months as high risk because breeding timing, young, population size and seasonal activity are not adequately known.

Identification: Appearance

The Rochford slider is a highly specialised skink in the endemic Australian genus Lerista. It is a burrowing animal that can move through loose soil, and may be difficult to detect during routine clearing surveys.

The forelimbs are absent, with no groove or other indication of a forelimb. The hindlimb is very short and has a single clawed digit. The species has five supraciliaries, which are scales above the eye.

Published identification relies on detailed scale counts and body measurements. The Rochford and Barrabas populations are closely related and have no single character that reliably separates them.

Identification: Size and similar species

A reliable field size range is not established in the available profile. Do not identify the species from size alone.

It may be confused with other limbless or reduced limbed Lerista skinks. Confirm records using a qualified herpetologist and detailed photographs or voucher material where permitted.

  • Useful diagnostic characters include preocular scales, presubocular scales, scales between the last supralabial and ear, hindlimb length, toe lamellae and toe supradigitals.

Identification: Calls and field signs

No species specific call, echolocation signal or odour is known for this skink. It is not expected to leave conspicuous nests, whitewash or roost stains.

Specimens have been collected in friable soil beneath logs. Look for the animal under suitable cover and in loose soil rather than relying on calls or obvious surface signs.

  • Record the exact location and habitat condition.
  • Photograph the animal, the soil surface and any shelter feature before it is moved.
  • Avoid handling unless authorised and needed for reliable identification.

Distribution: Known Australian range

The Rochford slider is endemic to northern Queensland. Its known distribution is very restricted, with records from two nearby dry rainforest patches separated by cleared grazing land and the Kirk River.

The species is known from Rochford Scrub and Barrabas Scrub in the Charters Towers region of northern Queensland. Both sites are pastoral lease areas and contain dry rainforest or vine thicket habitat.

The two known populations are in neighbouring habitat patches. The species has not been confirmed as widespread across the surrounding open woodland or cleared land.

  • Rochford Scrub, including the Boori Station locality within the scrub.
  • Barrabas Scrub on Kirkton Station.

Distribution: Range and site interpretation

The corrected known area of occupancy is less than half a square kilometre. If all of Rochford Scrub is suitable, the potential occupancy area there is larger, but the species has not been shown to occur throughout either scrub.

A lack of a record does not demonstrate absence. Survey results should be interpreted with the survey method, season, soil condition, cover searched and habitat connectivity recorded.

Known locations: Two dry rainforest patches

Habitat patch context: Rochford Scrub and Barrabas Scrub are each around 20 square kilometres in extent

Movement between patches: Likely to be limited because the patches are separated by cleared grazing land and the Kirk River

Distribution: Work site implications

Treat mapped or remnant dry rainforest and vine thicket as potential habitat, including suitable loose soil beneath logs and other ground cover. Nearby records should trigger a targeted ecological assessment before clearing or ground disturbance.

The species has no known overseas range. It is a Queensland endemic.

  • Check current Queensland biodiversity records and project specific ecological reports.
  • Do not assume that a cleared edge or an area without a previous record is unsuitable without field assessment.
  • Retain records with accurate coordinates, habitat photographs and survey effort details.

Habitat: Vegetation communities

Rochford sliders are associated with dry rainforest, also called vine thicket, on remnant Tertiary surfaces. The most useful site indicators are intact or partly intact vine thicket, deep or coarse sandy soil, and loose soil that can be penetrated beneath ground cover.

Both known populations occur in Regional Ecosystem 11.5.15, described as semi evergreen vine thicket on remnant Tertiary surfaces. Parts of Rochford Scrub also contain Acacia and Eucalyptus woodland, although that woodland is not present at Barrabas Scrub.

Assess the structure and condition of the vegetation, not just the mapped vegetation category. Small or disturbed remnants may still contain suitable soil and shelter.

  • Dry rainforest or vine thicket.
  • Remnant vegetation on Tertiary surfaces.
  • Edges and internal patches with loose soil and retained logs.

Habitat: Soils and landform

The species appears dependent on loose, friable soil that it can move through. Deep, coarse sands are associated with dry rainforest in the region and should be treated as potentially suitable where other habitat features remain.

Avoid assuming that hard packed tracks, compacted pads or cleared ground represent the natural condition of the site.

  • Inspect soil under logs and other natural ground cover.
  • Map loose soil patches, sandy areas, drainage features and the boundary of intact vegetation.
  • Include nearby habitat connected to the remnant when assessing clearing impacts.

Habitat: Habitat condition

Suitable habitat is extremely patchy in northern Queensland. The two known scrubs were isolated from one another by open Eucalyptus woodland before European landscape modification, and are now separated by cleared grazing land and the Kirk River.

For an Endangered species with a very restricted known range, retain habitat patches and avoid further narrowing or fragmentation of their margins.

Foraging habitat: Where to search

The diet of the Rochford slider is not established. Its association with loose soil suggests that ground level soil and cover are important when assessing potential foraging habitat.

Search beneath logs and within loose, friable soil in dry rainforest and vine thicket. Give priority to areas with intact leaf litter, natural ground cover and limited soil compaction.

The species may be below the surface or under cover, so a visual walk through cleared ground alone is unlikely to be an adequate assessment.

  • Loose soil beneath logs.
  • Deep or coarse sandy soil within vine thicket.
  • Moist or shaded ground cover that has not been heavily compacted, where present.

Foraging habitat: Survey approach

Use a targeted reptile survey designed by a suitably experienced ecologist. Search should be systematic and should cover representative soil types, vegetation condition and shelter features across the proposed disturbance area.

Move cover carefully and replace it in its original position. Minimise trampling and keep vehicles and machinery out of potential habitat until the survey and clearance controls are agreed.

  • Record search time, people involved, area searched, weather and soil condition.
  • Photograph and mark any suspected individual before capture or relocation is considered.
  • Use experienced identification support because similar Lerista species may occur in the broader region.

Foraging habitat: Interpreting results

Five specimens were recorded in the Queensland WildNet profile, with the last listed observation on 11 February 2007. The species can appear locally abundant from catching effort, but neither known scrub has been exhaustively surveyed.

A positive record should be treated as significant. A negative result should not be used alone to clear potential habitat from consideration.

Breeding habitat: Breeding places

Specific breeding sites, breeding timing and clutch information are not established for the Rochford slider. Management should therefore protect the full suite of suitable ground habitat rather than relying on a known nest or seasonal breeding buffer.

No particular nest, burrow, colony or other breeding place has been confirmed. The species is a skink that uses loose soil and ground cover, so disturbance to soil, logs and the surrounding vine thicket may affect breeding habitat even when no animal is seen.

Do not remove logs or strip the soil surface from potential habitat during preliminary site preparation.

Breeding habitat: Timing and survey planning

Breeding timing, clutch size, incubation period and age at maturity are not established. Plan surveys and habitat inspections with advice from a qualified herpetologist rather than assuming that a particular month is low risk.

Where clearing cannot be avoided, complete habitat checks before machinery enters the site and use a documented clearance procedure approved for the project and the species status.

Breeding habitat: Protection on works sites

For an Endangered species, avoid clearing known habitat wherever practicable. Retain connected vine thicket, loose soil and natural shelter, and keep construction materials, spoil and vehicle movements out of retained habitat.

Any individual found during works should be managed under the project fauna handling procedure by authorised personnel.

Sheltering habitat: Shelter features

Rochford sliders have been collected in friable soil beneath logs. These features should be treated as shelter habitat and handled carefully during surveys, vegetation clearing and construction preparation.

Look for animals beneath fallen logs and in loose soil within dry rainforest or vine thicket. Retained logs, leaf litter and undisturbed soil may provide shelter even where the vegetation canopy has been partly modified.

There is no evidence that the species uses caves, hollows, roosts or communal shelters.

  • Fallen logs with friable soil underneath.
  • Leaf litter and natural ground cover.
  • Uncompacted sandy or coarse soil within remnant vine thicket.

Sheltering habitat: Clearance practice

Before clearing, mark retained habitat and shelter features on site plans. Use a staged inspection of logs, soil and low vegetation, with fauna spotter catchers checking each area before disturbance.

If a log must be moved, lift it carefully where safe, inspect the underside and replace it promptly unless the approved fauna procedure requires another action.

  • Keep machinery and stockpiles outside retained habitat.
  • Prevent unnecessary soil compaction and grading.
  • Maintain safe access for fauna searches during staged clearing.

Sheltering habitat: Handling records

Record the location, habitat feature, condition of the soil and the outcome of each inspection. Report suspected Rochford sliders promptly through the project environmental management process.

Do not rely on the absence of surface animals to confirm that shelter habitat is unused.

Threats: Clearing and fragmentation

The Rochford slider has a very restricted distribution and is listed as Endangered in Queensland and under Commonwealth law. Development controls should focus on avoiding loss of dry rainforest, protecting loose soil and reducing further fragmentation and fire risk.

Clearing of Rochford Scrub, Barrabas Scrub or other suitable vine thicket can remove habitat directly. Further fragmentation may reduce movement between suitable areas and isolate local populations.

Use the avoid, minimise and restore hierarchy. Keep infrastructure within already disturbed areas where possible and retain continuous habitat around remnant patches.

  • Avoid clearing known habitat.
  • Keep access tracks, laydown areas and construction compounds out of suitable vine thicket and loose soil.
  • Do not widen existing cleared gaps without assessing the effect on habitat connectivity.

Threats: Fire

Fire is a recognised threat to the species. Unplanned fire, high intensity fire or repeated burning may alter dry rainforest, remove ground cover and affect the loose soil and shelter features used by the skink.

Prepare and implement a site specific fire management plan before works begin.

  • Prevent escaped burns and machinery ignition.
  • Keep fire management activities consistent with the ecological condition of the remnant.
  • Inspect retained habitat after any fire or emergency response.

Threats: Soil disturbance and construction activity

Compaction, grading, trenching, spoil placement and removal of logs can reduce the quality of shelter and burrowing habitat. These impacts may occur outside the main clearing footprint if access and storage areas are not controlled.

Fence or clearly mark exclusion zones before mobilisation and brief all operators and fauna spotter catchers about the species and its habitat.

  • No unnecessary vehicle entry into retained habitat.
  • Keep spoil, fill and construction materials off natural soil.
  • Restore temporary disturbance using methods agreed with the project ecologist.

Threats: Survey and compliance risk

The species is poorly known and has a small number of recorded localities. Infrequent records should not be taken to mean that a site is unoccupied, particularly where suitable vine thicket and loose soil remain.

For proposed clearing in or near potential habitat, obtain project specific ecological advice and confirm whether Queensland or Commonwealth approvals, referral or species management requirements apply.

  • Use targeted survey effort suited to reduced limbed burrowing skinks.
  • Keep accurate records of searches, captures, relocations and incidents.
  • Escalate any record or suspected habitat impact to the project ecologist and relevant regulator.

Survey methodology: 1. Desktop assessment

The Rochford slider is a small, poorly known skink associated with dry rainforest or vine thicket and loose, friable soil. Focus surveys on suitable habitat, especially beneath logs and within undisturbed soil that the species can move through.

Map dry rainforest and vine thicket, particularly Regional Ecosystem 11.5.15, and identify areas with loose, friable soil and fallen logs.

Treat records from Rochford Scrub and Barrabas Scrub as high priority. The species is Queensland endemic and has a very restricted known distribution.

Check WildNet, museum records, property records and recent ecological reports. Do not treat an absence of records as proof that the species is absent.

Survey methodology: 2. Field searches

Search suitable soil beneath and around fallen logs using careful hand searches. Replace every log and the soil surface immediately after inspection.

Inspect leaf litter, soil cracks, loose surface debris and other sheltered ground features within dry rainforest and vine thicket.

Use experienced reptile ecologists and fauna spotter catchers familiar with small, fossorial skinks. Avoid destructive excavation unless it has been specifically approved.

Survey methodology: 3. Timing and effort

Survey during suitable weather when reptiles are likely to be active near the surface. Avoid relying on a single visit, particularly after cold, very wet or excessively hot conditions.

The species was surveyed in September, but its breeding and seasonal activity periods are not established. Plan repeat searches across representative conditions where the risk is high.

Scale effort to the area and habitat quality. Increase coverage around logs, loose soil and intact vine thicket, and where clearing would remove or fragment suitable habitat.

Survey methodology: 4. Records and verification

Record the date, time, weather, observers, search method, search effort, habitat, soil condition, log locations and result of each search.

For each animal, record a precise location, photograph, identification features, sex or life stage if known, behaviour, microhabitat and whether it was handled or relocated.

Submit reliable records to the relevant Queensland database and museum or project database. Retain photographs and voucher information so unusual records can be checked.

Before habitat disturbance: 1. Avoidance and approvals

Plan the work around avoidance first. The species has a restricted known range and occurs in habitat that can be fragmented by clearing, so retain intact vine thicket, loose soil and fallen-log habitat wherever possible.

Redesign the footprint to avoid known or likely habitat, including dry rainforest, vine thicket and connected patches of suitable loose soil.

Obtain ecological and legal advice before clearing. Assess whether the action requires an EPBC referral or approval and whether Queensland approval under the Nature Conservation Act 1992 is required.

Where work may tamper with a breeding place, confirm whether a Queensland species management program, or SMP, is required. Obtain all state permits for handling, collection, salvage or relocation before work starts.

Before habitat disturbance: 2. Pre-clearance survey

Complete a targeted pre-clearance survey in all suitable habitat within and beside the disturbance footprint. Include careful searches beneath logs and in loose soil.

Use the survey results to refine the clearing boundary, fauna exclusion areas, access routes, stockpile locations and machinery parking areas.

Have the ecologist document the basis for concluding that an area is suitable, unsuitable or unresolved. Treat unresolved habitat as occupied until assessed.

Before habitat disturbance: 3. Work timing and breeding risk

The species breeding period is not established, and no migration period is known. Do not assume that a particular month provides a low-risk work window.

Before work, check for animals, eggs or other evidence of a breeding place. If evidence is found, stop the affected activity and obtain direction under the relevant approval or SMP.

Avoid clearing during weather that makes animals difficult to detect, unless the approved method specifically addresses that risk.

Before habitat disturbance: 4. Exclusion and induction

Mark retained habitat, no-go areas, animal holding areas and access routes before machinery arrives. Set buffers from habitat edges and finds using the project ecologist's risk assessment and approval conditions.

Fence or otherwise protect exclusion areas so machinery, vehicles, materials and workers cannot enter them.

Induct all workers on the species' appearance, habitat, legal protection, no-go areas, stop-work authority, safe handling limits and reporting procedure.

During habitat disturbance: 1. Sequential clearing

Use a staged, supervised clearing process. The fauna spotter catcher must have authority to stop work whenever an animal, potential breeding place or unexpected suitable habitat is found.

Clear in stages from the disturbed area towards retained habitat, leaving a clear escape route where this is safe and appropriate.

Remove surface debris and logs carefully under direct fauna supervision. Inspect each item before moving it and replace retained habitat features where practicable.

Keep machinery outside exclusion areas and stop work if visibility, weather, dust or noise prevents effective fauna searches.

During habitat disturbance: 2. Animal handling

Only authorised and appropriately permitted personnel may capture, handle or relocate a Rochford slider.

Use the least intrusive method that protects the animal. Keep handling time short, prevent overheating and place the animal in a secure, shaded container only when necessary.

Release or relocate animals only under the approved plan, and only to suitable nearby habitat identified by the ecologist. Record the exact release location and condition of the animal.

During habitat disturbance: 3. Breeding places and unexpected finds

Stop work around any suspected active breeding place, eggs, hatchlings or repeated use of a shelter. Protect the site from people, machinery, vibration and soil disturbance.

Do not disturb, fill, excavate or relocate a breeding place unless the action is authorised under the relevant approval, permit or Queensland SMP.

Stop work and reassess if additional suitable habitat, a concentration of animals or a new population is found. Extend searches and revise the clearing controls before restarting.

During habitat disturbance: 4. Injured animals

Stop work and keep people and machinery away from an injured animal. Do not provide food, water or medication unless directed by a qualified wildlife carer or veterinarian.

Have an authorised person place the animal in a labelled, secure container with appropriate ventilation and temperature control.

Contact the project ecologist and an approved wildlife carer or veterinarian. Record the location, injury, treatment pathway, handler and outcome.

During habitat disturbance: 5. Daily records

Record all sightings, captures, relocations, injuries, deaths, breeding-place findings, stop-work events and areas searched.

Include date, time, location, habitat, weather, personnel, action taken and approval or permit reference where relevant.

Report significant incidents to the project manager and regulator in accordance with approval conditions. Do not restart affected work until the authorised ecologist has released the area.

After habitat disturbance: 1. Post-clearance checks

Post-clearance checks confirm whether animals or habitat features were missed. Use the results to close out incidents, improve controls and inform future work in this restricted range.

Inspect the cleared area, retained edges, access tracks and temporary work areas after each clearing stage and again when practical after machinery has left.

Check beneath disturbed logs, around soil piles and along habitat edges for live or injured animals, carcasses and signs of retained habitat damage.

Keep exclusion fencing and access controls in place until the ecologist confirms that the area is safe for the next work stage.

After habitat disturbance: 2. Relocated animals

Check relocated animals at the release site when this is required by the approval or relocation plan. Record survival, condition and any movement observations.

Do not undertake additional relocation, supplementary release or population movement without ecological justification and the necessary authority.

Review whether the release habitat remains intact, shaded and free from machinery, stock and avoidable disturbance.

After habitat disturbance: 3. Reporting and monitoring

Prepare a completion report covering survey effort, clearing stages, animals found, breeding-place findings, relocations, injuries, mortalities, incidents and any permit breaches.

Map all records and retained habitat. Submit records to the relevant Queensland biodiversity database and include suitable photographs and location accuracy.

Where habitat was retained or fragmented, establish monitoring that matches the approval and the risk to the population. Increase monitoring if animals are found after clearing or if habitat condition declines.

After habitat disturbance: 4. Incident review

Review every injury, mortality, unauthorised entry, missed animal or stop-work event with the ecologist, spotter catcher and site supervisor.

Identify the cause and change the clearing sequence, induction, exclusion controls, survey method or supervision before further work.

Notify the regulator or approval holder when required. Keep a corrective action register until each action is closed.

Rehabilitation actions: 1. Habitat restoration

Rehabilitation should recreate the habitat features used by the species, not just provide general revegetation. Prioritise intact dry rainforest or vine thicket, loose friable soil and connected ground cover.

Retain and restore native dry rainforest or vine-thicket vegetation around occupied or potentially occupied areas.

Replace compacted or contaminated soil with suitable local soil where practicable. Avoid grading, deep ripping and unnecessary soil compaction in retained habitat.

Reconnect retained patches where the design allows. Keep fallen logs, leaf litter and natural ground debris in suitable areas unless they create a safety or fire-management risk.

Rehabilitation actions: 2. Shelter and breeding features

Use natural logs, leaf litter and friable soil as the first choice for shelter and potential breeding habitat.

Do not install nest boxes, bat boxes, artificial nest sites or roost structures for this species unless a qualified ecologist confirms that a specific structure is relevant to the Rochford slider and is supported by an approved plan.

Do not assume that structures designed for birds, bats or hollow-using animals will benefit this ground-dwelling skink.

Rehabilitation actions: 3. Weeds, fire and water

Control weeds before they dominate the ground layer, using methods that avoid unnecessary soil disturbance and chemical impacts on reptiles.

Manage fire risk with advice from the land manager and fire ecologist. Protect dry rainforest and vine-thicket patches from avoidable high-intensity fire and repeated disturbance.

Do not create ponds or artificial water points as a default measure. Maintain natural drainage and avoid erosion, flooding or waterlogging of loose-soil habitat.

Rehabilitation actions: 4. Lighting and site use

Limit night lighting near retained habitat. Direct lights away from the ground and use the lowest practical intensity and duration.

Prevent vehicles, stock, waste storage and repeated pedestrian traffic from entering restored habitat.

Use fencing, signage and maintenance controls until vegetation and soil surfaces are stable.

Rehabilitation actions: 5. Long-term monitoring

Monitor vegetation cover, soil condition, weed presence, fire impacts, erosion, connectivity and disturbance in restored and retained habitat.

Include targeted searches beneath logs and in suitable loose soil where lawful and safe. Use consistent methods so results can be compared between visits.

Review monitoring results with the land manager and regulator. Adapt weed control, access, fire management and restoration methods if the habitat is not recovering or the species is detected.

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