BC Conservation Data Centre: Conservation Status Report
Erythemis collocata
Western Pondhawk
| Scientific Name: | Erythemis collocata |
|---|---|
| English Name: | Western Pondhawk |
| Provincial Status Summary | |
| Status: | S4 |
| Date Status Assigned: | March 15, 2023 |
| Date Last Reviewed: | March 15, 2023 |
| Reasons: | This species is found in southern BC from southeastern Vancouver Island and Gulf Islands to Sunshine Coast and Fraser Valley on mainland with disjunct localities in the south Okanagan and Boundary district. The number of localities is is increasing and it appears to be adaptable to a wide variety of eutrophic habitats, however is subject to threats associated and occurs in areas of high human density. |
| Range | |
| Range Extent: | F = 20,000-200,000 square km |
| Range Extent Estimate (km2): | 70,423 |
| Range Extent Comments: |
This species occurs on southeastern Vancouver Island, lower mainland and up the Sunshine Coast as well as a few scattered locations to the east including the south Okanagan, Christina Lake and north end of the Upper Arrow lake for a Range Estimate of 70,423 km2. |
| Area of Occupancy (km2): | F = 126-500 |
| Area of Occupancy Estimate (km2): | 604 |
| Area of Occupancy Comments: | Based on Kew GeoCat and iNaturalist records which also encompassed any RBCM (2004) records. |
| Occurrences & Population | |
| Number of Occurrences: | D = 81 - 300 |
| Comments: | Between 130 and 160 locations estimated. |
| 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: | U = Unknown |
| Comments: | This species inhabits a variety of eutrophic waters in areas of high human activity and appears to be thriving and increasing, however there will be threats from draining these waterbodies, heavy pollution or sedimentation or severe droughts. |
| Trend (in population, range, area occupied, and/or condition of occurrences) | |
| Short-Term Trend: | GH = Relatively Stable to increase of <25% |
| Comments: | There is a significant increase in the number of locations, particularly in the lower mainland and further east than the Okanagan since the RBCM data were compiled in 2004 that is greater than increased effort. A record from the Fraser Valley was considered significant enough to note it in 2000 (Kenner and Cannings 2000), where as there are dozens at present (iNaturalist; accessed March 2023). |
| Long-Term Trend: | U = Unknown |
| Comments: | There is a significant increase in the number of locations, particularly in the lower mainland |
| 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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GBIF.org. 2023r. GBIF. Occurrence Download for Erythemis collocata. https://doi.org/10.15468/dl.32jkq5 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: Erythemis collocata. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Jun 16, 2026).