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Roma Earless Dragon (Tympanocryptis wilsoni)

The Roma earless dragon is a small to medium-sized terrestrial agamid known from native Mitchell grasslands on sloping ground around Roma, Queensland. It has a very restricted known distribution and is poorly known, so clearing, grazing, fragmentation, invasive grasses and predators should be managed conservatively wherever suitable grassland occurs.

Conservation status

Queensland, Nature Conservation Act 1992: Endangered.

Breeding season

Breeding timing is not recorded for the Roma Earless Dragon. Related grassland earless dragons breed mainly from spring to early summer, with hatchlings appearing from late summer into autumn. Plan clearing for year round risk, with extra controls from spring to autumn and during winter sheltering.

Reproductive mode: Not recorded for the Roma Earless Dragon. Related grassland earless dragons are oviparous.

Clutch size: Not recorded for the Roma Earless Dragon. Related grassland earless dragons lay 3 to 6 eggs.

Incubation: Not recorded.

Size at hatching: Not recorded for the Roma Earless Dragon. A mean hatching size of 24 mm SVL was recorded for the related Grassland Earless Dragon, Tympanocryptis lineata.

Age at maturity: Not recorded.

Nest or egg sites: Not recorded for the Roma Earless Dragon. Related grassland earless dragons may lay eggs in arthropod burrows, surface rocks or similar refuge sites.

Breeding frequency: Not recorded.

Confirm timing with local surveys and weather records, because rainfall and temperature can affect reproduction, hatching, activity and recruitment in earless dragons.

  • Mating: Not recorded for the Roma Earless Dragon. Related grassland earless dragons mate in spring, with mating reported for the following spring after young reach adult size. September to November is therefore the supported related-species period.
  • Gravid females: Not recorded for the Roma Earless Dragon. Gravid females of the related Tympanocryptis lineata have been recorded from spring to mid-summer, supporting September to January, with the strongest evidence in October to December.
  • Egg laying: Not recorded for the Roma Earless Dragon. Related grassland earless dragons lay 3 to 6 eggs in late spring or early summer. Other related grassland populations have breeding and laying activity in October and November.
  • Incubation: No incubation period or nest duration is recorded for the Roma Earless Dragon or its named relatives. Eggs should be treated as potentially present in soil or refuge sites from the likely October to December laying period until late summer emergence.
  • Hatchlings: Not recorded for the Roma Earless Dragon. Related grassland earless dragons hatch in late summer, while Tympanocryptis lineata hatchlings have been recorded from January and Tympanocryptis osbornei juveniles from February to May. Recruitment and growth are greatest in late summer and autumn.
  • Active period: Adult activity is not recorded for the Roma Earless Dragon. Adults of related Tympanocryptis lineata and Tympanocryptis osbornei were captured through most of the year, while related Tympanocryptis pinguicolla was trapped when most active in February to mid-March and October to mid-November.
  • Winter inactivity: Not recorded for the Roma Earless Dragon. Most related Grassland Earless Dragons enter torpor during winter, from June to August, with reduced movement and increased risk of being unable to escape machinery or ground disturbance.
  • Highest clearing risk: Species-specific risk timing is unknown. Related evidence indicates increased risk from mating and gravid females in spring, eggs in late spring and early summer, and hatchlings and juveniles from late summer into autumn. Winter also remains a risk because inactive animals may be sheltering in soil, burrows, rocks or ground cover.

Identification

This is a small, cryptic earless dragon with a bluntly rounded snout, long slender tail and strongly patterned brown-black body. Identification should be confirmed by an experienced herpetologist where possible, because the species is known from very few specimens and resembles other Tympanocryptis dragons.

The body has extensive dark brown to black speckling on the sides and underside, with the darkest pattern concentrated on the head, throat and upper chest and extending towards the lateral belly.

There are three distinct pale spots on the top of the snout, one above each nostril and one at the snout tip. The dorsal scales are mixed, with unkeeled, weakly keeled and strongly keeled scales, and scattered enlarged pointed scales.

The snout is bluntly rounded. The tail is long and slender and tapers to a fine tip. A gular fold and scapular fold are present, and no visible tympanum is present.

  • Use the combination of three pale snout spots, heavy dark lateral and ventral speckling, no white lateral stripe, fewer than 10 internasals, two preanal pores and no femoral pores.
  • The species is described as small to medium-sized, but body length, total length and weight are not provided in the sources.

Identification: Separating similar earless dragons

The Condamine earless dragon has a narrow continuous white stripe from the axilla to the groin and more white than brown-black in its lateral and ventral patterning. The Roma earless dragon lacks this lateral stripe and has more black-brown than white patterning.

Both sexes of the two known Roma earless dragon specimens showed no obvious difference in patterning. One of the two specimens was a male and the other was a juvenile, so sex-based identification remains poorly tested.

Preanal pores: Two

Femoral pores: Absent

Inter-nasal scales: Fewer than 10 in the diagnosis, with nine recorded for the holotype

  • Do not rely on colour alone. Record the lateral stripe, snout spots, inter-nasal scale count, pore counts and dorsal scale character.
  • Seek confirmation if the animal shows a strong white axilla-to-groin stripe, which is more consistent with the Condamine earless dragon.

Identification: Field signs

The supplied sources do not describe diagnostic tracks, scats, calls, nests, sloughs or eyeshine for this species.

A live animal, photograph or verified specimen record should be treated as the primary field evidence. Surveys and handling should use suitable reptile survey methods and appropriately trained personnel.

Distribution: Known range

The Roma earless dragon is known only from a small area of south-western Queensland near Roma. The original description was based on very few samples, and the full extent of the population is not known.

The species is known from native grasslands near Roma, extending from Hodgson approximately 20 km west of Roma to Mount Abundance approximately 50 km south-west of Roma.

The holotype locality was on Mount Abundance Road, approximately 40 km south-west of Roma. The species occurs in the western Darling Downs within the Brigalow Belt bioregion.

  • Treat native grassland remnants and adjoining suitable grassland near Roma as potential habitat, including areas not previously recorded for the species.
  • Do not assume that the known range is limited to the two named localities, because the original authors stated that distribution knowledge was very limited.

Distribution: Records and trend

The original description reported four known samples, comprising two voucher specimens and two tissue-only samples. This is not a population estimate.

The species was identified as one of Australia's terrestrial reptiles at high risk of extinction. A national assessment estimated a 19 percent probability of extinction in the wild by 2040 under the stated assessment assumptions.

Known samples in original description: Four, including two vouchers and two tissue-only samples

Estimated extinction probability by 2040: 19 percent

Estimated no-management change over 20 years: Approximately 25 percent decrease at hypothetical sites

  • The direction and rate of change in the wild population are not directly known.
  • Expert estimates for hypothetical sites indicated that doing nothing could produce an approximately 25 percent decline over 20 years.

Habitat: Known habitat

The species is currently known from native grasslands on sloping terrain in the western Darling Downs. Available habitat information is limited to broad vegetation and terrain descriptions.

Known sites are native grasslands on sloping ground. The western Darling Downs grasslands are dominated by Mitchell grasses.

The species is associated with fertile grassland country that has been extensively modified in the wider region. Remaining patches may be small and isolated.

Vegetation: Native grassland, including Mitchell grass dominated grasslands

Terrain: Sloping terrain

Known elevation range: Not reported

Known climatic limits: Not reported

  • Prioritise retention of native grassland patches, including small remnants and connected adjoining areas.
  • Avoid assuming that cleared pasture provides equivalent habitat, particularly where native ground cover has been replaced by invasive pasture grasses.
  • Record slope, native grass composition, ground cover, bare ground, grazing pressure, invasive grasses and the condition of adjoining grassland during site assessment.

Habitat: Habitat structure

The sources do not define the required grass height, litter depth, bare-ground proportion, soil type or patch size for this dragon.

Reptiles in the Brigalow Belt can be sensitive to changes in ground structure, grazing, soil compaction and the loss of shelter features. These factors should be recorded rather than inferred from vegetation cover alone.

  • Retain native ground cover and natural soil microrelief during clearing and construction.
  • Prevent compaction by vehicles, livestock and machinery in retained grassland and around potential shelter sites.
  • Avoid disturbing rocks, woody debris and other ground features unless their role has been assessed.

Foraging habitat: What is known

The supplied sources do not report the diet, prey species, feeding method or foraging range of the Roma earless dragon. Management should therefore retain the native grassland structure that supports its invertebrate prey and allows movement between shelter sites.

No species-specific information is provided on diet, feeding times, prey selection or foraging distance.

The species is a small terrestrial dragon occurring in native grassland, so clearing and ground disturbance may affect both feeding areas and the invertebrate community on which it depends. This is a general management consideration for a grassland reptile, not a measured species-specific result.

  • Retain native grassland and avoid broadscale soil disturbance within and beside occupied habitat.
  • Control invasive grasses selectively and intensively without damaging soil structure or microrelief.
  • Avoid relying on grazing alone to manage invasive grass because the cited expert advice identifies this as unsuitable for Brigalow Belt reptile habitat.

Foraging habitat: Foraging range

No home-range, daily movement or foraging-distance data are available for this species.

Because the known populations are small and fragmented, retain adjoining native grassland wherever possible rather than isolating small habitat patches.

Breeding habitat: Known information gaps

Breeding biology has not been described in the supplied sources. No breeding season, clutch size, incubation period, maturity age or lifespan is available for this species.

The original description was based on only four known samples and states that little is known about the species. The documents do not identify nesting sites, egg-laying conditions, hatchling habitat or parental care.

Retain intact native grassland and its soil surface because any undocumented egg-laying or juvenile shelter sites could be damaged by clearing, grading, compaction or intensive grazing.

Breeding season: Not reported

Clutch size: Not reported

Gestation or incubation: Not reported

Age at maturity: Not reported

Lifespan: Not reported

  • Do not disturb potential habitat during works without a project-specific fauna assessment and an approved relocation or rescue procedure where required.
  • Record juveniles separately from adults, because the original material included one juvenile and the age structure of the population is otherwise unknown.

Breeding habitat: Breeding habitat protection

Specific breeding habitat features are unknown. The safest available approach is to retain the full native grassland patch, including the ground layer, soil surface, microrelief and adjoining areas that may support juveniles or dispersing animals.

Livestock exclusion was identified as an appropriate management action for Roma earless dragon offset sites, particularly where grazing could degrade the remaining grassland.

  • Fence retained habitat before clearing where livestock access would otherwise continue.
  • Keep machinery, stockpiles, fill, drainage works and vehicle access out of retained grassland.
  • Treat all suitable grassland as potentially important for breeding until surveys establish otherwise.

Sheltering habitat: Known shelter information

No species-specific information is available on burrows, rock shelters, woody debris, refuge dimensions or overwintering sites. Ground shelter should be retained because Brigalow Belt reptiles can be affected by compaction and the removal of shelter features.

The sources do not identify a shelter type or give dimensions for refuges used by the Roma earless dragon.

General Brigalow Belt reptile threats include compaction of the ground layer and underground shelter sites by cattle and pigs, and removal of woody debris and rocks.

Burrow or refuge type: Not reported

Refuge dimensions: Not reported

Hollows or roosts: Not applicable or not reported for this terrestrial dragon

  • Retain rocks, woody debris, natural ground cover, soil cracks and other potential shelter features within native grassland.
  • Exclude livestock from retained habitat where trampling or compaction is occurring.
  • Do not remove shelter material from the work area unless it has been inspected and managed under the project fauna procedure.

Sheltering habitat: Worksite handling

A fauna spotter should inspect retained grassland, spoil areas, rock piles, debris and other ground features before disturbance. The documents do not provide a species-specific search image or refuge clearance method.

If an animal is found, stop work around the animal and follow the project fauna handling, relocation and reporting procedure.

Threats: Clearing and fragmentation

The main risks are loss and degradation of native grassland, fragmentation and continuing agricultural modification. The species has a restricted known distribution and very few records, so local clearing may affect a substantial part of a poorly understood population.

Agricultural habitat loss and degradation are identified as major threats to the Roma earless dragon. Native grassland near Roma has been reduced to small remaining patches, and ongoing land-use change is likely to contribute to decline.

Fragmentation is a concern because Brigalow Belt reptiles generally have limited dispersal ability, relatively small home ranges and sensitivity to habitat loss and degradation. The species-specific home range is not known.

  • Apply the mitigation hierarchy, with avoidance of native grassland clearing as the first option.
  • Retain whole grassland patches and connections to adjoining suitable habitat rather than isolated narrow remnants where practicable.
  • Assess cumulative clearing across adjoining properties and project stages, not only the immediate construction footprint.

Threats: Grazing, invasive grass and fire

Intensive grazing can degrade the ground layer and compact underground shelter sites. Buffel grass and other invasive pasture grasses can alter vegetation structure, compete with native plants and change fire regimes.

Experts considered livestock exclusion important for Roma earless dragon offset sites. Buffel grass control should be intensive and ongoing, while avoiding damage to soil structure and microrelief.

  • Exclude livestock from retained habitat where grazing is degrading ground cover or causing compaction.
  • Control buffel grass and other invasive grasses without simply grazing down the sward.
  • Plan fire management to avoid damaging retained native grassland and its ground shelter features.

Threats: Predators and other pressures

Feral cats and foxes are recognised threats to Brigalow Belt reptiles. Expert assessment for the Roma earless dragon indicated that predator control at a relatively intact site was more effective than restoration and threat management in degraded habitat.

Other identified pressures include inappropriate roadside management, removal of woody debris and rocks, hydrological changes, climate change and continuing development for agriculture, mining and infrastructure.

  • Include feral cat and fox control in management of retained, occupied or high-quality habitat.
  • Avoid unnecessary removal of rocks and woody debris from native grassland.
  • Manage road verges and access tracks to retain native ground cover and reduce avoidable mortality and disturbance.
  • Prevent drainage, ponding, dewatering and altered runoff from changing retained grassland conditions unless assessed by a qualified ecologist.

Threats: Disease and roads

The supplied sources do not identify a disease affecting the Roma earless dragon.

The sources identify inappropriate roadside management as a general threat to Brigalow Belt reptiles, but do not provide a Roma earless dragon road mortality rate or road-crossing behaviour.

  • Use hygiene measures between sites and avoid moving soil, vegetation or shelter material from infested or contaminated areas.
  • Record any road-killed or injured earless dragons and submit verified records to the relevant Queensland authority or fauna database.
  • Do not infer that a road verge is unsuitable habitat simply because it is linear or disturbed.

Survey methodology: 1. Confirm habitat and survey scope

No species-specific survey guideline or validated detection rate is provided in the supplied documents. The Roma earless dragon is known from native Mitchell grasslands on sloping terrain near Roma, and its small known range and cryptic habits require targeted searches by experienced reptile surveyors.

Map all native grassland on sloping ground within and adjacent to the project area before selecting survey locations.

Give particular attention to intact or relatively intact grassland patches, roadside or fence-line remnants, and connected patches near Hodgson, Mount Abundance and Roma.

Treat the species as potentially present in suitable habitat because the published distribution is based on only four known samples, including two voucher specimens and two tissue-only records.

Known habitat: Native grasslands on sloping terrain, dominated by Mitchell grasses in the western Darling Downs.

Published distribution: From Hodgson, approximately 20 km west of Roma, to Mount Abundance, approximately 50 km south-west of Roma.

Known sample base: Four known samples, comprising two vouchers and two tissue-only records.

  • Record the area of suitable grassland in hectares, its slope, dominant grasses, grazing condition, fragmentation, weed cover and connection to retained grassland.
  • Include retained habitat and adjoining grassland in the survey area where machinery, access tracks, stock movement or altered drainage could affect the species.

Survey methodology: 2. Targeted reptile searches

Use experienced reptile ecologists to conduct systematic searches of suitable grassland, including careful searches around grass bases, surface cover and disturbed margins.

Search retained habitat and likely movement routes before clearing, with additional searches of areas proposed for access tracks, stockpile sites, compounds and drainage works.

Use methods suitable for a small, cryptic earless dragon, such as visual searches, active searching of surface cover and other accepted reptile survey methods selected by the qualified ecologist.

  • Set out and map walked transects or search plots before fieldwork so that survey coverage and effort can be demonstrated.
  • Record the date, start and finish time, weather, recent rain, wind, temperature, observer names, search method, transect length or plot area and all animals detected.
  • Do not claim that a site is free of Roma earless dragons solely because one search produced no records, because the species is poorly known and has a small number of confirmed samples.

Survey methodology: 3. Timing, conditions and detection records

Schedule searches when reptiles are likely to be active and when ground conditions allow safe and effective detection, using the judgement of the qualified herpetologist because the supplied documents do not specify a seasonal window, number of nights or minimum survey hours.

Avoid relying on searches during conditions that suppress reptile activity or visibility, and document any weather or access constraint that reduces detection probability.

Use repeat visits where suitable habitat remains and the project has a high consequence of loss, because the published ecology, abundance and distribution of the species are limited.

Survey guidance available in the supplied documents: No species-specific survey guideline, minimum nights, survey hours, trap effort or transect density is provided.

  • Record negative results as survey results with the area searched and effort completed, not as proof of absence.
  • Photograph and accurately locate each detection, and retain diagnostic photographs or other evidence needed for verification.
  • Report any suspected Roma earless dragon promptly to the project ecologist and the relevant Queensland wildlife authority before disturbance proceeds.

Survey methodology: Minimum effort and reporting

  • Prepare a written survey plan that defines the suitable habitat map, search methods, transects or plots, observer qualifications, timing, conditions and decision rules for additional survey.
  • Survey every area of native sloping grassland that may be cleared, compacted, grazed, fragmented or indirectly affected by the project.
  • Submit confirmed records, including coordinates, photographs, date, observer and habitat description, to the relevant Queensland wildlife database or authority.
  • Check the current Queensland conservation listing and permit requirements before fieldwork because the supplied sources give different Queensland status information.
  • Retain the full field data, track files, photographs, negative search records and habitat maps with the project environmental records.

Before habitat disturbance: Avoid and minimise

Avoid clearing suitable native grassland wherever practicable. The species is associated with small, fragmented grassland patches, and the supplied evidence indicates that habitat protection alone may not prevent decline where weeds, grazing and predators remain unmanaged.

Redesign the project to retain native grassland on sloping ground, especially larger or connected patches and areas with known records.

Keep clearing, grading, vehicle movement, soil compaction and stockpiling out of retained grassland and its surface cover wherever practicable.

Maintain connections between retained grassland patches because fragmentation increases the risk to small local populations.

  • Do not treat a small retained patch as adequate mitigation without assessing its condition, connection to other grassland and exposure to ongoing threats.
  • Exclude livestock from retained habitat where practicable, because the supplied recovery findings specifically identify grazing exclusion as an action for the Roma earless dragon.
  • Control buffel grass and other invasive pasture grasses without disturbing soil structure or microrelief.

Before habitat disturbance: Approvals and project planning

Confirm the current Queensland listing, protected wildlife requirements and fauna handling authorisations before survey, clearing or relocation work.

The supplied records state that the species is not listed under the EPBC Act, but the project officer must check the current Commonwealth list and any taxonomic or listing change before concluding that an EPBC referral is unnecessary.

Prepare a fauna management plan that identifies suitable habitat, no-go areas, survey coverage, authorised handlers, stop-work triggers, relocation sites, injured-animal procedures and reporting requirements.

  • Obtain any Queensland permits required for taking, handling, possessing, transporting or releasing protected wildlife.
  • Stage works so that the smallest possible area is opened at one time and retained habitat remains connected during construction.
  • Set timing restrictions using the project ecologist's assessment of local reptile activity, because the supplied documents do not provide a breeding season or prescribed clearing months.

Before habitat disturbance: Pre-clearance preparation

Complete a pre-clearance search immediately before disturbance in all suitable grassland within the work footprint and around any habitat feature that machinery may affect.

Mark no-go grassland, retained connections, records, relocation areas, access routes and stockpile exclusion areas on plans and on the ground.

Use exclusion fencing where it can prevent machinery, vehicles and livestock from entering retained habitat without damaging the grassland or creating a barrier to required animal movement.

  • Brief operators and spotter catchers at the start of each shift using a map, photographs and clear stop-work instructions.
  • Confirm that the fauna spotter catcher has the required state authorisation, suitable containers and equipment for a small terrestrial dragon, and a named wildlife carer or veterinarian for injured animals.
  • Inspect fencing and signage daily before work starts and after heavy plant or vehicle movements.

During habitat disturbance: Daily clearing controls

Use staged, slow clearing under direct fauna spotter catcher supervision. The supplied documents identify habitat loss, fragmentation, grazing, invasive grasses, cats, foxes and soil disturbance as relevant risks to Brigalow Belt reptiles.

Hold a daily pre-start briefing with the supervisor, machinery operators, environmental officer and fauna spotter catcher.

Clear in a direction that allows animals to move towards retained suitable grassland, only where the ecologist has confirmed that this will not expose them to roads, machinery, stock or unsuitable habitat.

Keep machinery within approved limits, avoid unnecessary passes over grassland and stop work if visibility, weather or site conditions prevent the spotter catcher from working safely.

  • Inspect the work area before machinery enters it and repeat the inspection after breaks, plant changes or any unexpected ground disturbance.
  • Keep dogs, unauthorised people and vehicles out of the active search area.
  • Prevent soil movement, weed spread and accidental stock access into retained grassland.

During habitat disturbance: Fauna spotter catcher response

The fauna spotter catcher must remain close enough to see the active clearing face and must have authority to stop machinery immediately.

The spotter catcher must not enter an unsafe work zone or direct a machine operator to continue while an animal, possible shelter site or unidentified fauna is at risk.

Only an appropriately authorised person may capture, handle, transport or release a Roma earless dragon.

  • If the animal is found, stop work, establish a safe exclusion area and allow the authorised handler to assess it before any capture attempt.
  • Handle the animal for the shortest time needed, keep it shaded and secure, and do not use unapproved containers, chemicals or marking methods.
  • Relocate an uninjured animal only to nearby retained suitable grassland selected in advance by the ecologist, with comparable ground cover and protection from immediate construction activity.
  • Take an injured, shocked or overheated animal to the nominated veterinarian or authorised wildlife carer and record the handover.
  • Do not release an animal into a degraded, grazed, isolated or unapproved location.

During habitat disturbance: Habitat features, stop work and records

Inspect grass tussocks, surface cover, logs, rocks, soil cracks and other potential shelter before they are removed, crushed or buried, even though the supplied documents do not identify a species-specific shelter feature.

Do not relocate rocks, logs or other cover into retained habitat unless the ecologist confirms that the action will not damage soil structure, microrelief or existing animals.

Stop work for any confirmed or suspected Roma earless dragon, any injured fauna, an unapproved clearing footprint, a breach of an exclusion area or a condition that prevents effective fauna supervision.

  • Record every detection, attempted capture, relocation, injury, mortality, stop-work event and restart approval with time, coordinates, habitat, weather, machinery and personnel details.
  • Photograph the animal and release site where this can be done without delaying safe handling or causing additional stress.
  • Notify the project environmental officer and relevant authority of confirmed records, injury or mortality in accordance with permit and fauna management plan requirements.
  • Review the clearing method after each fauna event and change the work sequence or exclusion controls if the method is not preventing avoidable risk.

After habitat disturbance: Post-clearance checks

Post-clearance work must verify that no fauna or suitable shelter has been left at risk and that retained grassland controls remain effective. Monitoring should focus on the species, its limited known range and the condition of the remaining grassland patches.

Complete a final inspection of the cleared footprint, retained edges, access routes and temporary work areas after each staged clearing event.

Search for live or injured reptiles, trapped fauna, damaged exclusion fencing and unapproved disturbance before the area is handed to construction or operations.

Remove temporary materials, waste and barriers that could trap or injure reptiles, while retaining approved habitat features.

  • Repair fencing and reinstate no-go markers before the next work stage.
  • Check that drainage, erosion controls and sediment barriers are not blocking movement into retained grassland or causing ponding, soil compaction or weed spread.
  • Document the final cleared area, retained habitat area, any fauna records and all departures from the approved method.

After habitat disturbance: Monitoring and adaptive management

Monitor retained and rehabilitated grassland using repeat searches designed by a qualified reptile ecologist, because the species' abundance and detection probability are poorly understood.

Use the same mapped search areas, methods and recording fields on each monitoring visit so that changes in detections and habitat condition can be compared.

Inspect sites for grazing, buffel grass, other invasive pasture grasses, feral cats, fox activity, soil compaction and loss of connectivity.

  • Set monitoring frequency and duration in the fauna management plan and increase effort if a Roma earless dragon is detected, habitat condition declines or new threats appear.
  • Treat a lack of detections as uncertain evidence unless survey effort and conditions were adequate for the species.
  • Report monitoring results, management failures and corrective actions to the approval authority where required.

After habitat disturbance: Offsets and residual impacts

Apply the mitigation hierarchy before considering an offset, with avoidance, retention and active threat management taking priority.

Assess any proposed offset against the species' specialised grassland habitat, small fragmented populations and the limited confidence in predicted management benefits.

Do not assume that a general reptile offset or habitat protection action will benefit the Roma earless dragon, because the supplied expert work found that habitat protection alone could still be associated with decline and that predator control at relatively intact sites was more effective than restoration of degraded habitat.

  • Use current ecological information, cumulative impacts and the best available species advice when assessing residual impacts.
  • Secure any approved offset or conservation area under an appropriate mechanism and specify ongoing grazing, weed and predator management.
  • Record the basis for concluding that an offset is suitable, including habitat condition, connectivity, known records and long-term management capacity.

Rehabilitation actions: Restore grassland structure

Rehabilitation should recreate and protect native grassland on suitable sloping ground, rather than simply planting trees or adding generic reptile habitat. The priority is to retain or improve grassland structure while reducing the threats identified for the species and its Brigalow Belt reptile group.

Reinstate native grassland using locally appropriate native grassland species and a seed source suited to the western Darling Downs, with the species list and establishment method set by a qualified restoration ecologist.

Restore soil profile, surface relief and ground cover without creating compaction, deep ruts or erosion that would reduce reptile shelter and movement opportunities.

Reconnect rehabilitated grassland with nearby retained patches wherever practicable, rather than creating isolated planting areas.

  • Do not convert suitable earless dragon grassland to woodland, gardens or dense tree planting.
  • Exclude livestock from rehabilitation areas while native cover establishes and retain that exclusion where grazing would damage the habitat.
  • Reinstate approved logs, rocks and other surface cover only where they occur naturally or are supported by the site rehabilitation design, and place them without disturbing soil microrelief.

Rehabilitation actions: Manage threats

Control buffel grass and other invasive pasture grasses selectively and intensively, using methods that do not damage soil structure or microrelief.

Manage feral cats and foxes around relatively intact retained or rehabilitated habitat using an approved control programme and monitor the response.

Prevent construction weeds, altered drainage, soil compaction and inappropriate fire from reducing the quality of rehabilitated grassland.

  • Develop a fire regime with the land manager and ecologist that maintains native grassland structure and avoids damaging small isolated populations.
  • Do not rely on grazing alone to control buffel grass.
  • Inspect adjoining properties, road verges and connected grassland for threats that could undermine the rehabilitation area.

Rehabilitation actions: Success measures and monitoring

Set success measures for native grass cover, invasive grass cover, soil stability, absence of damaging compaction, livestock exclusion, connectivity and persistence of approved surface cover.

Use repeat habitat assessments and targeted reptile searches at the same mapped locations and under recorded conditions.

Continue management for the period specified in the approval or rehabilitation plan, recognising that the supplied expert assessment considered buffel grass control to require intensive management for more than 20 years.

Long-term weed management indication: The supplied expert assessment states that buffel grass control requires very intensive management over more than 20 years.

  • Investigate and correct declining native cover, increasing weeds, predator activity, grazing breaches or loss of connectivity.
  • Record all management actions, weather, fire, grazing, weed treatment, predator control, habitat condition and Roma earless dragon detections.
  • Do not declare rehabilitation successful solely because vegetation has re-established; require the agreed habitat condition and threat-control measures to be met.

Sources