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MetricBiodiversity and ecosystems

Invasive alien species management and removal

Measurement answer

What this metric measures

Structured TNFD Oil and Gas additional-sector disclosure of invasive alien species identified, removal programmes underway, and invasive alien species removed by volume and number.

Specification

Metric specification

Result format
Structured table
Unit
Structured table — see field-level units
Reporting basis
Reporting period; the source does not prescribe a more specific temporal basis.
Aggregation
Report the stated quantities as separate fields; no aggregation method is specified.
Pillar
Environmental
Topic
Biodiversity and ecosystems
Controlled domain
Nature, biodiversity and land
Entity type
Metric

Reporting boundary

Reporting entity activities within the applicable Oil and Gas sector reporting boundary; the source does not further specify operational, geographic, ecosystem, or value-chain scope.

Verified source occurrences

Framework coverage

This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.

  • Adopting Disclosure

    TNFD sector guidance

    Source evidence
    Publisher
    Taskforce on Nature-related Financial Disclosures
    Edition
    Final English sector guidance collection through August 2026 (17 documents)
    Requirement
    Not Specified
    Relationship
    Defines Disclosure
    Mapping outcome
    Direct Evidence
    Source locator
    Page 69, Table 13, Impact driver / Invasive alien species and other, Metric no. OG.A4.0 | Source specification: "Report the number of invasive alien species identified, the number of removal programmes currently underway, and the volume and number of invasive alien species that have been removed."
    Open official framework source
  • Adopting Disclosure

    TNFD sector guidance

    OG.A4.0
    Publisher
    Taskforce on Nature-related Financial Disclosures
    Edition
    Version 1.0, June 2024
    Requirement
    Recommended
    Relationship
    Maps Source Identity
    Mapping outcome
    Published
    Source locator
    Page 69, Table 13, Impact driver / Invasive alien species and other, Metric no. OG.A4.0
    Open official framework source

Value structure

Dimensions and units

Unit
Structured table — see field-level units
Reporting basis
Reporting period; the source does not prescribe a more specific temporal basis.

Unit meaning: Each field uses its stated unit and retains the applicable sector, reporting boundary, period and method.

Table fields and units

  • invasiveAlienSpeciesIdentifiedCount
  • removalProgrammesUnderwayCount
  • invasiveAlienSpeciesRemovedVolume
  • invasiveAlienSpeciesRemovedCount

Published dimensions

  • Sector: Oil and Gas
  • Official metric code: OG.A4.0
  • Status: additional recommended metric
  • Impact driver: Invasive alien species and other
  • Field: invasive alien species identified
  • Field: removal programmes currently underway
  • Field: invasive alien species removed, by volume and number
  • Geography, ecosystem, species taxonomy, removal-programme scope, and value-chain qualifier are not specified in the source.

Disclosure method

Formula information

Status
Not applicable
Formula type
Structured Disclosure

Disclosure form

No single formula

Report the source-defined result with its stated fields and method disclosures. OG.A4.0 explicitly requests separately reportable management and removal outputs rather than an input, example, target, or calculation parameter. The source specifies multiple fields with heterogeneous and partly unspecified units, so a structured table preserves the required components without inventing a common unit, conversion, aggregation rule, or boundary. It is not the same canonical construct as the shortlisted ESRS single count, area, pathway narrative, or prevention-coverage records.

Verified sources

Evidence and status sources

Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.

Measurement evidence

  • Measurement evidenceChecked 30 August 2026

    TNFD additional sector guidance collection

    Publisher
    Taskforce on Nature-related Financial Disclosures
    Edition
    Final English sector guidance collection through August 2026 (17 documents)
    Locator
    Page 69, Table 13, Impact driver / Invasive alien species and other, Metric no. OG.A4.0 | Source specification: "Report the number of invasive alien species identified, the number of removal programmes currently underway, and the volume and number of invasive alien species that have been removed."

    Supports: The official TNFD sector guidance supports the identity, boundary and method basis of “Invasive alien species management and removal”.

    Open official source

Use with context

Interpretation boundaries

Method disclosures required

Source-edition basis: TNFD sector guidance, Final English sector guidance collection through August 2026 (17 documents).

  • Disclose the reporting boundary, including covered assets, sites, operations, and any relevant value-chain activities.
  • Disclose the geography and ecosystem(s) covered and the species identification or taxonomy method used.
  • Disclose the counting basis for invasive alien species identified and invasive alien species removed.
  • Disclose the definition of a removal programme and the criteria for determining that it is currently underway.
  • For removed volume, disclose the measurement unit, measurement method, and conversion factors where applicable.
  • Disclose whether removals are reported as individuals, biomass, volume, populations, occurrences, or another basis, and ensure the reported number field is interpretable.
  • Disclose treatment of contractor-operated, jointly operated, or partner-operated removal activities and any exclusions.
  • Retain attribution to the TNFD Oil and Gas sector guidance source; TNFD materials are CC BY 4.0 and cited third-party materials retain their own rights.

Record-specific limitations

  • The source does not define the taxonomic basis for identifying invasive alien species.
  • The source does not prescribe a unit for removed volume.
  • The source does not specify whether counts represent individuals, occurrences, populations, or other quantity bases.
  • The source does not define the boundary for removal programmes, including whether programmes operated by contractors or partners are included.
  • The source does not prescribe geographic, ecosystem, operational-site, or value-chain disaggregation.

Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.

Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.