BC Conservation Data Centre: Conservation Status Report
Macromia magnifica
Western River Cruiser
| Scientific Name: | Macromia magnifica |
|---|---|
| English Name: | Western River Cruiser |
| Provincial Status Summary | |
| Status: | S3 |
| Date Status Assigned: | |
| Date Last Reviewed: | March 15, 2023 |
| Reasons: | This species has a restricted range in the Fraser Valley, Okanagan-Shuswap and Christina Lake/ Pend d'Oreille Valley. It s is uncommon along margins of warm lakes and rivers. As the species lives in areas of relatively high human population, such habitats are targets for development and recreational activities, which degrade habitat. |
| Range | |
| Range Extent: | F = 20,000-200,000 square km |
| Range Extent Estimate (km2): | 36,505 |
| Range Extent Comments: | This species is found primarily through the Okanagan Valley north to the Shuswap and then along the southern border at Cultus Lake, Christina Creek and the Pend d'Oreille. The range extent is approximately 36,505 km 2. |
| Area of Occupancy (km2): | DE = 6-125 |
| Area of Occupancy Estimate (km2): | 92 |
| Occurrences & Population | |
| Number of Occurrences: | C = 21 - 80 |
| Comments: | There are approximately 20-24 sites known for this species (2023), which is likely an underestimate. |
| Number of Occurrences with Good Viability / Ecological Integrity: | Rank Factor not assessed |
| Number of Occurrences Appropriately Protected & Managed: | Rank Factor not assessed |
| Population Size: | U = Unknown |
| Threats (to population, occurrences, or area affected) | |
| Degree of Threat: | U = Unknown |
| Comments: | This species is found on the margins of warm lakes and rivers where there is development potential and heavy human use. |
| Trend (in population, range, area occupied, and/or condition of occurrences) | |
| Short-Term Trend: | U = Unknown |
| Long-Term Trend: | U = Unknown |
| 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 04, 2023 |
| References | |
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GBIF.org. 2023l. GBIF Occurrence Download for Macromia magnifica https://doi.org/10.15468/dl.dywm77 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: Macromia magnifica. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Jun 13, 2026).