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Yellow-bellied Pouched Bat (Saccolaimus flaviventris)

The Yellow-bellied Pouched Bat is a medium-sized, insect-eating microbat that roosts mainly in tree hollows and forages over forest, woodland and cleared areas. It matters on development sites because clearing hollow-bearing trees, removing older vegetation and disturbing roosts can affect breeding and sheltering habitat, while its use of private land makes construction and infrastructure sites relevant to its protection.

Conservation status

New South Wales, Biodiversity Conservation Act 2016: Vulnerable.

Victoria, Flora and Fauna Guarantee Act 1988: Vulnerable.

South Australia, National Parks and Wildlife Act 1972: Rare.

Queensland, Nature Conservation Act 1992: Colonial breeder. Least concern in Queensland, but it breeds in colonies, so tampering with a breeding place needs a high risk species management program rather than the low risk program.

Breeding season

This seasonal pattern is based on the limited species-specific information available. Timing may vary across the species' broad range.

A state-by-state breeding calendar, gestation period and maternity-roost occupancy calendar are not well documented.

  • Breeding: Breeding activity is reported mainly from October to February, with the peak period extending across October, November, December, January and February.
  • Young: Young are reported to begin flying and foraging with adults approximately 6 to 8 weeks after birth, with young activity particularly noted in November and December.
  • Movement and activity: The species is described as most active from September to May and less active during June to August. A defined migration pattern is not provided.
  • Highest clearing risk: Clearing or disturbance of hollow-bearing trees is most likely to harm the species during the reported breeding period from October to February, particularly if maternity roosts or dependent young are present. Hollow loss remains a year-round risk.

Identification

Identification is difficult because the species is fast flying, often high above the ground and poorly known. Confirmation should combine direct observation, roost inspection and acoustic evidence rather than relying on a single field feature.

The Yellow-bellied Pouched Bat is a medium-sized microbat with yellowish fur on the belly. It has a pouch-like fold of skin near the throat, reflected in the common name used in some references.

The species has a wingspan of approximately 30 to 35 centimetres. No reliable body weight is known.

Wingspan: Approximately 30 to 35 centimetres

Weight: Not well documented

Identification: Distinguishing features

The yellow belly and sheath-tailed body form can assist with visual identification, but views are usually brief because the species is fast flying and may forage high above the tree canopy.

Echolocation recordings may help, but calls can resemble those of other sympatric bats, including Mormopterus beccarii and the bare-rumped sheath-tailed bat. Putative call sequences should therefore be supported by measurements, reference material and habitat or roost evidence.

  • Do not identify the species from a generic high-flying bat call alone.
  • Record call sequences and associated measurements where acoustic identification is attempted.
  • Use photographs, voucher-quality observations or specialist review for uncertain records.

Identification: Field signs and detection

The most useful field sign is a bat emerging from, or returning to, a hollow-bearing tree at dusk. Hollows may also be inspected during the day with a small video camera where this can be done safely and lawfully.

The species is not reliably detected by harp traps. High-set mist nets over isolated waterholes, creek lines, woodland edges and near the tree canopy are more appropriate where trapping is authorised.

Diagnostic tracks, scats, nests or eyeshine characteristics for this species are not available.

  • Use unattended ultrasonic detectors overnight in forest or woodland, at waterholes, dams and watercourses.
  • Place detectors several metres above the ground where possible and orientate them upwards towards vegetation gaps.
  • Observe suspected hollow-bearing trees at dusk before any proposed tree removal.

Distribution: National range

Only a broad national range and selected project-region information are documented. A complete state-by-state distribution, bioregion list or population estimate is not available.

The species is described as occurring across northern and eastern Australia. All occupied states have not been identified, and a definitive national range map is not available.

It was considered in forest assessments for the UNE and LNE regions of north-east New South Wales. A separate southern-region assessment recorded it as absent from both listed subregions.

Broad range: Northern and eastern Australia

Bioregions: Not well documented.

Distribution: Strongholds and subpopulations

No confirmed strongholds, discrete subpopulations or important maternity areas have been established. The species uses a wide variety of habitats and forages over large areas, making individual records less useful as a sole basis for buffering habitat.

Distribution: Population information

No national population size, local abundance estimate or population trend is given. The species is described as poorly understood and in need of further research.

Population size: Not stated

Population trend: Not stated

Knowledge status: Requirements are poorly understood

Habitat: Habitat types

The Yellow-bellied Pouched Bat uses a range of forest and woodland habitats, provided suitable hollow-bearing trees and flying insect resources are present.

Recorded or inferred habitat includes forests, woodlands, open woodland, dry forest and moist forest. The species can also forage over cleared areas and private land.

It is associated with areas containing large trees and hollows, including trees retained in paddocks and other modified settings.

  • Retain hollow-bearing trees in forest, woodland, paddock and construction areas.
  • Assess isolated large trees, dead trees and trees with visible cavities as potential roost habitat.
  • Consider nearby forest, woodland, watercourses and open areas together when assessing habitat use.

Habitat: Structural features

Large trees and tree hollows are the clearest habitat features documented for this species. No minimum tree diameter, hollow entrance size or hollow depth has been published.

Hollow-bearing trees may be used for breeding, sheltering or both. A tree in a cleared paddock may still provide a usable roost.

Minimum tree size: Not specified

Hollow dimensions: Not specified

Habitat: Elevation and climate

An elevation limit has not been established. Activity is described as greater during warmer months, with reduced activity in cooler winter conditions.

Foraging habitat: Diet and feeding habitat

The species is an aerial insectivore. It can forage across forest, woodland and adjacent cleared areas, including private land.

The diet is described simply as flying insects. No particular insect groups or food plants have been identified.

Foraging habitat includes dry and moist forest, woodland, open areas and cleared land adjacent to roosting habitat. The species is considered highly mobile and to forage over a large area.

  • Protect connected or nearby insect-producing vegetation around hollow-bearing trees.
  • Avoid assuming that a cleared area has no value, because the species may forage over private land and adjacent clearings.
  • Include waterholes, dams, creek lines and woodland edges in survey planning.

Foraging habitat: Foraging range and detection

The species has a large foraging range, but no distance in kilometres has been documented. High flight makes ground-based visual searches less effective than overnight acoustic monitoring and targeted high-set netting.

Foraging range: Large, but no distance is provided

Minimum high-set net height recommended in the survey guidance: Preferably more than 8 metres above ground

  • Use passive detectors overnight in representative forest, woodland and open-water locations.
  • For large project areas, distribute detectors and nets across the main habitat types.
  • Set authorised mist nets as high as possible, preferably more than 8 metres above the ground, near the tree canopy.

Breeding habitat: Breeding biology

Breeding requirements are poorly documented. The clearest requirement is access to suitable hollows in forest or woodland, particularly in larger trees.

Breeding is concentrated in the warmer months, with October to February identified as the main breeding window in one field account. Juveniles may begin flying and foraging with adults approximately 6 to 8 weeks after birth.

Litter size, gestation period and age at first breeding have not been established.

Breeding season: Most activity reported from October to February, but species-specific breeding data are limited

Litter size: Not stated

Gestation: Not stated

Age at maturity: Not stated

Juvenile flight and foraging: Approximately 6 to 8 weeks after birth.

Estimated reproductive lifespan: 1 to 9 years, with an estimated mean of 4 years

Breeding habitat: Breeding habitat features

Breeding is associated with hollows in forests. The species prefers areas with large trees and hollows, but preferred hollow size and maternity colony structure are not well documented.

Because records have often resulted from roost trees being felled or falling, hollow-bearing trees proposed for removal require targeted assessment before works.

  • Inspect hollow-bearing trees before clearing, demolition or infrastructure works.
  • Schedule any authorised hollow-tree disturbance outside the period when dependent young are likely to be present, subject to the relevant state requirements and specialist advice.
  • Use dusk emergence observations and acoustic recording to assess high hollows that cannot be inspected directly.

Sheltering habitat: Roost types

Tree hollows are the primary sheltering feature identified for this species. Caves and building cavities may also be used, but the evidence base is limited.

The species roosts in hollows in forests and woodlands. It has also been recorded in a tree hollow in a paddock and may use caves, abandoned buildings, attics or wall cavities.

Preferred entrance diameter, cavity depth, tree diameter and number of bats per roost are not well documented.

Known or reported roost features: Tree hollows, possible caves, abandoned buildings, attics and wall cavities

Roost dimensions: Not specified

  • Treat live hollow-bearing trees, dead trees and isolated paddock trees as potential roosts.
  • Check buildings, roof cavities and wall voids where works may disturb bats.
  • Do not block a suspected roost entrance or remove a hollow tree without an appropriate assessment and approval.

Sheltering habitat: Roost survey methods

High hollows can be assessed by observing bats emerging at dusk and recording calls. Lower hollows may be inspected during the day with a small video camera.

Survey guidance recommends passive detectors overnight and states that the species has not been successfully captured in harp traps.

  • Monitor suspected hollow entrances at dusk before tree removal.
  • Use unattended detectors overnight in forest or woodland and near waterholes, dams or watercourses.
  • Where a project area is less than 50 hectares, the survey guide recommends 16 mist-net nights and 16 detector nights over 4 nights, together with 1 to 2 hours of tree-roost survey or inspection per survey day.

Threats: Clearing and hollow loss

Loss of hollow-bearing trees is the highest-ranked species-specific threat in the supplied assessment. Clearing and pesticide exposure are also identified concerns.

Loss of hollows and other roosting sites, including through logging or dieback on private property, was ranked as the highest disturbance for the species. Habitat clearing was ranked second.

The species is mobile and uses a wide range of habitat, so buffering an individual record may not protect all habitat used by the population. Retaining hollow-bearing trees and surrounding vegetation is therefore important at project sites.

Highest-ranked threat in the assessment: Loss of hollows and roosting sites

Second-ranked threat: Habitat clearing

  • Map all hollow-bearing trees before clearing.
  • Avoid felling live or dead hollow-bearing trees where practicable.
  • Protect replacement trees and recruitment of future hollow-bearing trees.
  • Treat isolated hollow trees in paddocks and development footprints as potential roosts.

Threats: Pesticides and private land

Pesticide exposure was ranked second in the threat assessment because the species forages on private land. Chemical use near roosts, water sources and forest edges should be considered in project planning.

  • Avoid spraying near known or suspected roost trees where practicable.
  • Prevent pesticide drift into adjacent forest, woodland, creek lines and waterholes.
  • Record chemical controls near retained habitat in site environmental documentation.

Threats: Fragmentation, fire, roads and disease

No species-specific ranking for fragmentation, roads, fire or hydrology change has been published, and the effects of these pressures on this species are not established.

Lyssavirus is known to occur in the species, but the level and significance of its impact are recorded as unknown. Handle grounded or injured bats only under appropriate wildlife and public health procedures.

Lyssavirus impact: Known to occur in the species, but significance is unknown

Road, fire and hydrology effects: Not specifically documented.

  • Maintain safe access between retained hollow trees and nearby feeding habitat where practicable.
  • Avoid unnecessary night lighting and disturbance around suspected roosts.
  • Do not handle a grounded bat without appropriate training, personal protective equipment and authorisation.
  • Refer unusual, injured or sick bats to the relevant wildlife authority or licensed wildlife carer.

Survey methodology: 1. Passive acoustic detection

Survey this high-flying, hollow-roosting insectivorous bat before works that could remove hollow-bearing trees or disturb woodland, forest, creek lines or waterholes. Use several methods because records are sparse, roosts may be high in trees, and echolocation calls can overlap with other sheath-tailed and free-tailed bats.

Deploy unattended ultrasonic detectors overnight in forest or woodland, several metres above ground where practicable, with the microphone directed upwards at least 45 degrees towards gaps in the vegetation.

Place additional detectors at waterholes, dams and watercourses, because these may be used by foraging bats.

Treat acoustic identifications cautiously because calls can resemble those of sympatric species, including other Saccolaimus and Mormopterus species.

Retain the original call sequences and provide call measurements in the survey report where identification is uncertain.

Minimum effort for a project area under 50 hectares: 16 detector nights over a minimum of 4 nights

Survey methodology: 2. Dusk emergence and roost searches

Watch hollow-bearing trees at dusk and make acoustic recordings of bats emerging from high hollows.

Inspect hollows that are close enough to the ground with a small video camera, particularly where the proposal includes removal or damage to hollow-bearing trees.

Search forests, open woodland, riparian areas and rural areas containing large trees and hollows, because the species has been recorded using hollows in forests and in a tree hollow in a paddock.

Do not enter, break open or otherwise disturb a suspected roost to obtain confirmation.

Tree roost survey effort for a project area under 50 hectares: 1 to 2 hours per survey day

Survey methodology: 3. Mist-netting and transects

Set mist nets above or just below the tree canopy, preferably more than 8 metres above ground, over isolated waterholes and creek lines and at woodland or forest edges.

Attend mist nets continuously and release captured animals promptly using approved fauna handling procedures.

Do not rely on harp traps, because this species has not been successfully caught in them.

Use walking or driving transects with a hand-held detector to increase coverage across a large project area, but do not expect head-torch monitoring to attract this high-flying species.

Run hand-held detector transects for at least 2 hours when this method is used.

Minimum effort for a project area under 50 hectares: 16 mist-net nights over a minimum of 4 nights

Survey methodology: 4. Survey timing and conditions

Schedule surveys when the species is expected to be active, generally from September to May, with October to February identified as a particularly productive period in the species account.

Prioritise dusk and the first hour after sunset for emergence observations, and consider pre-dawn checks where repeated activity needs to be confirmed.

Avoid relying on cool, wet or windy conditions, which can suppress bat activity, and record temperature, rainfall, cloud, wind and moon conditions for every survey.

For large or structurally varied project areas, distribute detectors, nets and roost searches across the main habitat types rather than concentrating effort at one location.

Survey methodology: Minimum effort and reporting

  • For project areas under 50 hectares, complete at least 16 mist-net nights over 4 nights, 16 unattended detector nights over 4 nights, and 1 to 2 hours of tree-roost survey or inspection on each survey day.
  • Use a combination of detectors, mist nets, transects and hollow searches where the project area is large or contains several habitat types.
  • Record detector and net locations with GPS and show them on maps, together with survey dates, start and finish times, weather, equipment, call files, capture results and hollow observations.
  • Have a suitably experienced ecologist assess uncertain acoustic records and retain representative call files for audit.
  • Submit confirmed records, including negative survey results where required by the project approval, to the relevant state wildlife database and provide the records to the project regulator or approval authority.

Vegetation associations: Eucalypt forest

Source-checked associations and automatically indexed candidates are separated below. An association does not establish site presence, preference or dependence.

Recorded or inferred habitat includes forests, woodlands, open woodland, dry forest and moist forest.

Automatically indexed from existing profile text. Not a verified preference, mapped occurrence or habitat requirement. Check the original source and regional qualifiers before use.

Evidence: Unreviewed profile-derived candidate

Confidence: Not independently verified

Region: Scope as described in the quoted profile text; not independently verified. Profile states: NSW, NT, QLD, VIC, WA.

Habitat use: general

Attribution gap: No sentence-level reference is attached to the original profile block. Review the profile bibliography; this candidate is not source-verified.

Vegetation associations: Woodland

Recorded or inferred habitat includes forests, woodlands, open woodland, dry forest and moist forest.

Automatically indexed from existing profile text. Not a verified preference, mapped occurrence or habitat requirement. Check the original source and regional qualifiers before use.

Evidence: Unreviewed profile-derived candidate

Confidence: Not independently verified

Region: Scope as described in the quoted profile text; not independently verified. Profile states: NSW, NT, QLD, VIC, WA.

Habitat use: general

Attribution gap: No sentence-level reference is attached to the original profile block. Review the profile bibliography; this candidate is not source-verified.

Ecosystem associations

Source-checked associations and automatically indexed candidates are separated below. An association does not establish site presence, preference or dependence.

No species-specific ecosystem association has been indexed or source-checked in this evidence library. This is an evidence gap, not evidence of no association.

Soil and substrate associations

Source-checked associations and automatically indexed candidates are separated below. An association does not establish site presence, preference or dependence.

No species-specific soil association has been indexed or source-checked in this evidence library. This is an evidence gap, not evidence of no association.

Water and wetland associations

Source-checked associations and automatically indexed candidates are separated below. An association does not establish site presence, preference or dependence.

No species-specific water association has been indexed or source-checked in this evidence library. This is an evidence gap, not evidence of no association.

Fauna records and mapped habitat: Not yet analysed

Record locations can be overlaid with mapping, but record frequency alone does not measure habitat preference. No species is excluded from desktop assessments by this analysis.

No quality-controlled record-to-map analysis has been completed for this species. The existing generalised distribution dots and indicative range polygons have not been treated as precise occurrence coordinates.

A defensible run needs dated, independently attributable records, coordinate uncertainty, duplicate and captive-record checks, layer versions and regional scope. Preference and absence require additional survey-effort and detection evidence.

Habitat limitations and contrary evidence: No supported exclusion recorded

Not recorded is not the same as cannot occur. Low suitability, resident habitat, breeding habitat and occasional movement are different conclusions.

This library has not established a vegetation, ecosystem or soil-type exclusion for this species. This does not mean all habitat is suitable; the evidence needed to justify an exclusion has not been assembled.

Habitat limitations and contrary evidence: Before using a negative association

  • Confirm the taxon, geographic region, life stage and habitat function covered by the evidence.
  • Check survey methods, season, repeated effort and detectability before interpreting non-detection.
  • Investigate credible contradictory records and microhabitats absent from broad mapping.
  • Do not convert a missing map class, low record count or failed data request into species absence.

Before habitat disturbance: Avoid and minimise habitat loss

Treat large hollow-bearing trees and connected woodland or forest as the main features to retain. The species is poorly known, so planning should avoid the loss of roost hollows and should not rely only on records from previous surveys.

  • Retain mature and dead hollow-bearing trees wherever practicable, including isolated trees in paddocks and trees near forest, woodland, riparian areas and waterholes.
  • Retain surrounding forest and woodland used for flying insects, because the species forages over a large area rather than being tied to a small feeding patch.
  • Retain connected vegetation between hollow-bearing trees and nearby forest, creek lines and waterholes so that bats can move between roosting and foraging areas.
  • Avoid clearing more habitat than the approved design requires, and give preference to alignment or construction options that avoid hollow-bearing trees.

Before habitat disturbance: Approvals and work planning

  • Check the current EPBC Act status and determine whether the proposed action requires referral or approval if the species is nationally listed at the time of assessment.
  • Check the relevant state threatened species legislation, permit requirements and fauna handling licences before clearing or disturbing a suspected roost.
  • Prepare a fauna management plan that identifies hollow-bearing trees, proposed retention areas, fauna handling roles, stop-work triggers, release sites, emergency contacts and reporting requirements.
  • Stage clearing so that retained habitat is available before any hollow-bearing trees or other roost features are removed.

Before habitat disturbance: Timing and pre-clearance preparation

  • Schedule hollow-tree removal outside the period identified by the project ecologist as the likely maternity period, unless an approved method specifically addresses occupied roosts.
  • Complete a pre-clearance inspection of every tree proposed for removal and every tree that could be affected by machinery, vibration or access works.
  • Observe high hollows at dusk and use acoustic recording before removal where a tree may contain a roost.
  • Mark retained trees, exclusion zones, access routes and release habitat clearly on the ground before machinery arrives.

Before habitat disturbance: Site controls before clearing

  • Install exclusion fencing around retained hollow-bearing trees, creek lines, waterholes and other no-go areas where fencing can prevent machinery entry.
  • Brief the fauna spotter catcher, machine operators and supervisors on the location of retained habitat and the procedure for stopping work.
  • Confirm that any replacement hollows, nest boxes or other artificial roosts have been installed before removing a known or high-risk hollow, where this forms part of the approved management plan.
  • Keep suspected roost trees undisturbed until the fauna spotter catcher has completed the approved inspection and the site supervisor has authorised the next step.

During habitat disturbance: Daily clearing controls

Use a slow, supervised clearing process around hollow-bearing trees. The fauna spotter catcher must have authority to stop machinery when an animal, occupied hollow or unassessed habitat feature is found.

  • Inspect the work area each day before machinery starts, including trees, logs, rocks, ground debris, creek margins and any previously retained habitat.
  • Keep exclusion fencing, tree protection measures and access controls in place and repair them if damaged.
  • Clear vegetation progressively towards retained habitat so that animals have an opportunity to move away from machinery, while preventing movement into active work zones.
  • Use the fauna spotter catcher to maintain direct communication with the operator and supervisor during all high-risk clearing.

During habitat disturbance: Hollow-bearing trees and habitat features

  • Stop work and inspect any hollow-bearing tree before felling, including trees with hollows that are not visible from ground level.
  • Where an approved method requires removal, use staged or controlled felling directed towards cleared ground and away from retained trees, creek lines and release habitat.
  • Leave felled hollow-bearing sections intact where practicable and place them in nearby retained habitat in a stable position, with entrances unobstructed and oriented consistently with the approved fauna plan.
  • Check fallen logs, tree bases and nearby hollows after felling, because the species may use hollows in standing trees and may also use caves or other enclosed roost spaces.
  • Do not destroy or relocate a suspected roost feature until the fauna spotter catcher has inspected it and documented the action.

During habitat disturbance: Animal handling and release

  • Stop machinery immediately if a Yellow-bellied Pouched Bat is seen, found injured, trapped or located in a tree or hollow being disturbed.
  • Allow a healthy flying bat to leave without interference where it can move safely into retained habitat.
  • Only an appropriately licensed and trained person may capture, handle, transport or relocate the bat, and handling must follow the permit, fauna management plan and state requirements.
  • If relocation is authorised, release the bat into nearby retained habitat with suitable hollow-bearing trees and safe flight access, rather than transporting it unnecessarily.
  • Place an injured, grounded or abnormal bat in a secure, quiet container only under authorised direction and arrange prompt assessment by a veterinarian or licensed wildlife carer.
  • Do not handle a bat bare-handed, and refer any bite or scratch exposure for immediate medical advice because bat lyssavirus is identified as a possible species health issue.

During habitat disturbance: Stop-work triggers and records

  • Stop work if a bat is found, a suspected occupied hollow is exposed, a retained tree or exclusion zone is damaged, or the approved clearing method cannot be followed safely.
  • Stop work if acoustic, visual or video evidence indicates that a hollow proposed for removal is occupied and the fauna plan does not authorise the next action.
  • Record the date, time, location, tree or habitat feature, species identification, condition, photographs, action taken, release location, personnel and recommencement approval.
  • Report any injured or dead bat, unauthorised clearing, damaged habitat feature or failed exclusion control to the site supervisor and the project ecologist immediately.
  • Do not recommence work until the fauna spotter catcher and authorised environmental representative have cleared the area.

After habitat disturbance: Post-clearance inspection

Post-clearance work must confirm that no bat remains trapped in removed habitat and that retained roost and foraging features remain functional. Continue controls until the site is stable and the approval conditions are discharged.

  • Inspect felled trees, hollow sections, retained tree bases and nearby ground habitat after each clearing event for trapped, injured or displaced bats.
  • Check that retained hollow-bearing trees, creek lines, waterholes and access exclusions have not been damaged by machinery or storage of materials.
  • Complete a final dusk observation and acoustic check where a known or suspected roost tree was disturbed, removed or made inaccessible.
  • Record all findings, including no-find results, photographs, GPS locations and any change to the approved habitat retention plan.

After habitat disturbance: Monitoring and corrective action

  • Monitor retained hollows and installed replacement roosts using dusk observations and unattended acoustic detectors where the fauna management plan or approval requires monitoring.
  • Repeat monitoring during the active period identified by the project ecologist, particularly from September to May and during the October to February period identified in the species account.
  • Investigate unexpected loss of activity, new disturbance, tree failure or evidence of roost abandonment and implement corrective actions through the project ecologist.
  • Maintain exclusion fencing, tree protection and no-go controls until construction traffic and other disturbance no longer threaten retained habitat.

After habitat disturbance: Reporting and offsets

  • Provide the regulator, approval authority and land manager with the required clearing, fauna interaction, injury, mortality, relocation and monitoring reports.
  • Submit confirmed records and any georeferenced roost or hollow observations to the relevant state wildlife database.
  • Apply any approved offset, restoration or compensatory habitat requirement only in accordance with the project approval and current state or Commonwealth requirements.
  • Retain survey data, call files, photographs, maps and fauna handling records in the project environmental record.

Rehabilitation actions: Roost and vegetation restoration

Rehabilitation should rebuild the features identified for this species: hollow-bearing trees, connected forest or woodland, insect-rich edges and access to creek lines or waterholes. Because the species uses hollows and its requirements remain poorly understood, retain existing features wherever possible and measure whether replacement habitat is being used.

  • Retain live mature trees and standing dead trees with hollows during rehabilitation and future maintenance works.
  • Replant locally appropriate eucalypts and other native trees that restore forest, woodland and riparian structure, using species selected for the local vegetation community rather than a single assumed food plant.
  • Replace removed hollow resources with salvaged hollow-bearing sections or nest boxes only where they are specified in the approved fauna plan and installed safely at suitable retained trees.
  • Place salvaged hollow sections securely in retained habitat, keep entrances open and inspect them after storms, fire or major works.
  • Re-establish connected vegetation between retained roost trees, forest or woodland and nearby creek lines, dams or waterholes.

Rehabilitation actions: Foraging habitat and threat management

  • Control weeds and prevent dense regrowth from blocking flight paths or degrading retained creek-line and woodland habitat.
  • Keep artificial lighting, construction noise and regular human access away from known or suspected roost trees where practicable.
  • Manage fire with the local fire authority and ecologist so that hollow-bearing trees, riparian vegetation and developing replacement trees are not unnecessarily lost.
  • Avoid pesticide use near retained roost trees, waterholes and foraging areas unless the treatment is approved and the environmental risk has been assessed.
  • Keep domestic and feral animal controls in place where they are required to protect displaced or low-flying fauna.

Rehabilitation actions: Success measures and monitoring

  • Measure survival and growth of planted trees, retention of hollow-bearing trees, condition of salvaged hollows or nest boxes, connectivity of retained vegetation and protection of waterholes or creek lines.
  • Inspect replacement roost features and retained hollows at agreed intervals and use dusk observations or unattended acoustic detectors to test whether bats use the restored area.
  • Set project-specific success criteria before works, including the number and condition of retained or replacement hollows, vegetation survival and any confirmed bat records.
  • Submit monitoring results and confirmed records to the project regulator, land manager and relevant state wildlife database, and revise rehabilitation controls if the habitat features fail.

Sources