Unintentionally introduced species, varieties or strains
Measurement answer
What this metric measures
Location-specific reporting of the number or spatial extent of unintentionally introduced species, varieties or strains, including presence, absence and removals, in areas owned, operated, used or financed by the organization.
Specification
Metric specification
- Result format
- Structured table
- Unit
- Structured table — see field-level units
- Reporting basis
- Reporting period
- Aggregation
- Report the applicable number or spatial extent, with presence, absence and removal information retained by location and species, variety or strain; do not aggregate locations with materially different natural characteristics.
- Pillar
- Environmental
- Topic
- Invasive and unintentionally introduced species
- Controlled domain
- Nature, biodiversity and land
- Entity type
- Metric
Reporting boundary
Areas owned, operated, used or financed by the reporting organization, particularly priority areas.
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 Disclosurer028
TNFD LEAP approach
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Version 1.1, October 2023
- Requirement
- Not Specified
- Relationship
- Reuses Canonical Metric
- Mapping outcome
- Reused
- Source locator
- TNFD LEAP Approach v1.1, Annex 1, Table 22, PDF page 164, metric row 3
- Adopting DisclosureSource evidence
TNFD Recommendations
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- September 2023
- Requirement
- Not Specified
- Relationship
- Defines Disclosure
- Mapping outcome
- Direct Evidence
- Source locator
- TNFD Recommendations, September 2023, Annex 1, page 91, metric A4.0
- Adopting Disclosureb4fd6d1125513d529ffd
TNFD Recommendations
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- September 2023
- Requirement
- Not Specified
- Relationship
- Maps Source Identity
- Mapping outcome
- Published
- Source locator
- Page 91, metric A4.0 | TNFD Recommendations, September 2023, Annex 1, page 91, metric A4.0
Value structure
Dimensions and units
- Unit
- Structured table — see field-level units
- Reporting basis
- Reporting period
Unit meaning: Each field uses its source-defined unit and retains the applicable location, ecosystem type, value-chain position, status and method.
Table fields and units
- Location or area
- Priority-area status
- Ownership or activity relationship
- Ecosystem or biome
- Species, variety or strain
- Presence or absence status
- Measurement type
- Reported number
- Reported spatial extent
- Number removed
- Observation or survey method
- Reporting-period coverage
- Limitations
Published dimensions
- site
- project
- geography
- priority location
- ecosystem or biome
- ownership or activity relationship: owned, operated, used or financed
- species, variety or strain
- presence or absence status
- spatial extent
- number removed
- reporting period
Disclosure method
Formula information
- Status
- Not applicable
- Formula type
- Structured Disclosure
Disclosure form
No single formulaReport the source-defined result with its stated fields and method disclosures. A4.0 is a reportable Annex 1 core global metric family, but it explicitly allows distinct count, extent, presence/absence and removal forms. A structured family preserves those forms and the location-specific boundary rather than flattening them into a single invasive-species count or area figure. The shortlisted ESRS metrics and invasive-species profiles do not match the TNFD population and multi-form reporting requirement.
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 27 August 2026
Recommendations of the Taskforce on Nature-related Financial Disclosures
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- September 2023
- Locator
- TNFD Recommendations, September 2023, Annex 1, page 91, metric A4.0
Supports: The official TNFD Recommendations source supports the identity, boundary and method basis of “Unintentionally introduced species, varieties or strains”.
Open official source
Use with context
Interpretation boundaries
Method disclosures required
Source-edition basis: Recommendations of the Taskforce on Nature-related Financial Disclosures, September 2023.
- Describe the areas included and identify priority areas where applicable.
- Specify whether each reported result is a number, spatial extent, presence or absence observation, and/or number removed.
- Disclose the species, variety or strain identification approach and observation or survey method.
- State the relationship of each area to the organization: owned, operated, used or financed.
- Describe the basis for any removal information and material coverage limitations.
Record-specific limitations
- The source permits multiple measurement forms, including number, spatial extent, presence or absence, and removals; these forms must not be collapsed into a single universal total.
- Species identification, geographic coverage and detection methods can materially affect comparability.
- The metric concerns unintentionally introduced species, varieties or strains and should not be represented as a general affected-species or ecosystem-condition metric.
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.