BC Conservation Data Centre: Conservation Status Report
Ischnura erratica
Swift Forktail
| Scientific Name: | Ischnura erratica |
|---|---|
| English Name: | Swift Forktail |
| Provincial Status Summary | |
| Status: | S4 |
| Date Status Assigned: | December 30, 1998 |
| Date Last Reviewed: | March 15, 2023 |
| Reasons: | South coastal lowland species with restricted range, most of it in areas with high human impact; most common in Fraser Valley; often locally distributed; can be common in good habitat, but not as abundant as two of the other Ischnura species. Suitable habitat is broad in scope. |
| Range | |
| Range Extent: | F = 20,000-200,000 square km |
| Range Extent Estimate (km2): | 49, 501 |
| Range Extent Comments: | Scattered over Vancouver Island, lower mainland and a few locations up the Sunshine Coast. |
| Area of Occupancy (km2): | EF = 26-500 |
| Occurrences & Population | |
| Number of Occurrences: | CD = 21 - 300 |
| Comments: | Approximately 70 known, likely more. |
| Number of Occurrences with Good Viability / Ecological Integrity: | Rank Factor not assessed |
| Number of Occurrences Appropriately Protected & Managed: | Rank Factor not assessed |
| Population Size: | Rank Factor not assessed |
| Threats (to population, occurrences, or area affected) | |
| Degree of Threat: | D = Low |
| Comments: | Found in a variety of habitats (ponds, slow streams and lakes, wetlands in peat) so despite many threats to wetlands in the pacific coastal lowlands, the overall threat is low. |
| Trend (in population, range, area occupied, and/or condition of occurrences) | |
| Short-Term Trend: | Rank Factor not assessed |
| Long-Term Trend: | Rank Factor not assessed |
| Other Factors | |
| Intrinsic Vulnerability: | Rank Factor not assessed |
| Environmental Specificity: | Rank Factor not assessed |
| Other Rank Considerations: | |
| Information Gaps | |
| Research Needs: | |
| Inventory Needs: | |
| Stewardship | |
| Protection: | |
| Management: | |
| Version | |
| Author: | Ramsay, L. (2023); Cannings, R.A. and L. Ramsay (2015) |
| Date: | March 06, 2023 |
| References | |
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Cannings, R.A. 2002b. Introducing the dragonflies of British Columbia and the Yukon. Royal B.C. Mus., Victoria, BC. 96pp.
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GBIF.org. 2023w. GBIF. Occurrence Download for Ischnura erratica. https://doi.org/10.15468/dl.nbsn8u Accessed February 2023
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Please visit the website Conservation Status Ranks for information on how the CDC determines conservation status ranks. For global conservation status reports and ranks, please visit the NatureServe website http://www.natureserve.org/.
Suggested Citation:
B.C. Conservation Data Centre. 2023. Conservation Status Report: Ischnura erratica. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Jun 4, 2026).