Ancient Murrelet
Scientific Name: Synthliboramphus antiquus
Thresholds:
- Frederick Island (BC004)136,000 (max.)
- Hippa Island (BC009)80,000 (max.)
- Skincuttle Inlet Islands (BC138)70,300 (max.)
- Rankine and Langtry Islands (BC137)52,400 (max.)
- Ramsay and Northern Juan Perez Sound Islands (BC140)41,600 (max.)
- Englefield Bay Islands (BC016)37,340 (max.)
- Laskeek Bay (BC143)30,000 (max.)
- Langara Island (BC003)29,360 (max.)
- Alder Island (BC139)28,800 (max.)
- Dodge Point & Gogit Passage Island Chain (BC141)25,800 (max.)
- Kunghit Island and Luxana Bay (BC136)16,000 (max.)
- White Islets and Wilson Creek (BC025)6,200 (max.)
- Gaatsguusd ad Nee Kun McIntyre Bay, North Beach & Rose Spit (BC161)4,650 (max.)
Global
1% of the global population estimate. This threshold is used to identify trigger species and IBAs under categories A4i/ii and A4iv.
Regional/Continental
1% of the regional/continental population estimate.
Sub-regional/National SAR
The sub-regional/national SAR threshold = 1% of the COSEWIC population estimate for the region (provinces/territories) in which the species is listed as being at risk. This threshold is used to identify trigger species and IBAs under criterion C1.
| Frederick Island (BC004) | ||
|---|---|---|
| Number | Year | Season |
| 136,000 | 1985 | Other |
| Hippa Island (BC009) | ||
|---|---|---|
| Number | Year | Season |
| 80,000 | 1992 | Summer |
| Skincuttle Inlet Islands (BC138) | ||
|---|---|---|
| Number | Year | Season |
| 70,300 | 1996 | Summer |
| 58,200 | 1985 | Summer |
| Rankine and Langtry Islands (BC137) | ||
|---|---|---|
| Number | Year | Season |
| 52,400 | 1985 | Summer |
| Ramsay and Northern Juan Perez Sound Islands (BC140) | ||
|---|---|---|
| Number | Year | Season |
| 41,600 | 1986 | Summer |
| Englefield Bay Islands (BC016) | ||
|---|---|---|
| Number | Year | Season |
| 37,340 | 1986 | Summer |
| Laskeek Bay (BC143) | ||
|---|---|---|
| Number | Year | Season |
| 13,000 | 1985 | Summer |
| 30,000 | 1977 | Summer |
| Langara Island (BC003) | ||
|---|---|---|
| Number | Year | Season |
| 29,360 | 1985 | Summer |
| Alder Island (BC139) | ||
|---|---|---|
| Number | Year | Season |
| 28,800 | 1985 | Summer |
| Dodge Point & Gogit Passage Island Chain (BC141) | ||
|---|---|---|
| Number | Year | Season |
| 25,800 | 1982 | Summer |
| Kunghit Island and Luxana Bay (BC136) | ||
|---|---|---|
| Number | Year | Season |
| 7,100 | 1991 | Summer |
| 16,000 | 1986 | Summer |
| White Islets and Wilson Creek (BC025) | ||
|---|---|---|
| Number | Year | Season |
| 6,200 | 2017 | Winter |
| Gaatsguusd ad Nee Kun McIntyre Bay, North Beach & Rose Spit (BC161) | ||
|---|---|---|
| Number | Year | Season |
| 4,650 | 1994 | Winter |
| ? | ? | Other |