Arctic wildlife ranges from highly localized herds to marine populations spread across several countries and sea basins. The figures below bring together estimates, survey counts, confidence intervals, and species measurements, while keeping each statistic tied to its geography and measurement period.
Contents
- Polar bears and their subpopulations
- Caribou and reindeer abundance
- Bowhead whales and narwhals
- Walruses and Arctic marine mammals
- Seabirds and shorebirds
- Arctic foxes and Svalbard reindeer
Polar bears and their subpopulations
The global polar bear estimate is approximately 26,000 animals, excluding the Arctic Basin subpopulation because its abundance is unavailable. The 95% confidence interval is 22,000–31,000 animals. These figures are reported in the Polar Bear (Ursus maritimus): management plan, Eeyou Marine Region, Nunavik Marine Region, Quebec, 2023 to 2033 (Environment and Climate Change Canada).
The confidence interval matters when interpreting the headline number. It indicates that the estimate is not an exact headcount, and the stated global figure also has a defined exclusion: the Arctic Basin subpopulation is not included because its abundance is unavailable. For trip planning, the practical lesson is that a worldwide estimate describes broad scale, while the 19-subpopulation framework and regional surveys provide the more relevant geographic context.
The Arctic framework recognizes 19 defined polar bear subpopulations. Thirteen occur in Canada, and 9 of those are located entirely within Canada. A current species profile from the Norwegian Polar Institute records polar bears as far south as 50 degrees N in James Bay, Canada (Polar bear – Norsk Polarinstitutt).
Some regional figures are much older than the management-plan estimate and should be read as dated measurements. An August 2004 survey estimated 1,900–3,600 bears in the Barents Sea population. Within the Norwegian-area portion of that population, the estimate was about 685 animals in 2004 and 975 animals in 2015 (Fauna in Svalbard – Norsk Polarinstitutt). Those two Norwegian-area values are separate time-specific estimates, not a complete global trend.
Svalbard also illustrates the practical importance of wildlife safety. Up to 3 polar bears are typically shot each year there in self-defense or euthanized after property damage, according to the Norwegian Polar Institute’s current profile (Polar bear – Norsk Polarinstitutt).
Caribou and reindeer abundance
The Torngat Mountains caribou population was estimated at 930 animals in 2014, with a range of 616–1,453. The estimated extant mature component was 698 animals. The same assessment gives an approximate population of 5,000 in 1980, making the historical comparison especially important for travel planning around this region (Caribou: Eastern Migratory population and Torngat Mountains population – COSEWIC).
The Eastern Migratory caribou population was much larger in the figures used by the 2017 assessment. Its latest subpopulation estimates, from 2016, gave a minimum of 227,513 animals and an estimated mature component of 170,636. Approximately 18–21 years before the 2017 assessment, the population was estimated at 1,111,698 animals. The assessment characterized the change over three generations as an estimated 80% decline (Caribou: Eastern Migratory population and Torngat Mountains population – COSEWIC).
The Dolphin and Union caribou figures also distinguish a direct count from an extrapolated estimate. A fall 2015 aerial assessment counted 14,730 animals before extrapolation; the extrapolated estimate was 18,413 ± 6,795 animals (Caribou – COSEWIC assessment and status reports 2017).
| Population or region | Statistic | Measurement period |
|---|---|---|
| Torngat Mountains caribou | 930 animals; range 616–1,453 | 2014 |
| Torngat Mountains caribou | Approximately 5,000 animals | 1980 |
| Eastern Migratory caribou | Minimum 227,513 animals | 2016 estimates used in 2017 assessment |
| Dolphin and Union caribou | 18,413 ± 6,795 animals | 2015 extrapolated estimate |
Bowhead whales and narwhals
The 2020 Arctic Report Card lists four regional bowhead whale population estimates. The Okhotsk Sea population was about 218 individuals, while the East Greenland–Svalbard–Barents Sea population was about 318. The East Canada–West Greenland population was about 6,400, and the Bering–Chukchi–Beaufort population was about 16,800 (Bowhead Whales: Recent Insights into Their Biology, Status, and Resilience – NOAA Arctic).
These regional estimates are not interchangeable with a single global census. The same NOAA report gives a life-history estimate of more than 200 years for bowhead whales, a useful reminder that population recovery and age structure can unfold over long timescales (Bowhead Whales – NOAA Arctic).
The latest global narwhal abundance estimate in the cited assessment was 172,297 individuals in 2018. It covered 10 of the 12 stocks recognized by NAMMCO. The seven Canadian summer stocks made up approximately 90% of the global population in that assessment (Narwhal: Northern Hudson Bay and Baffin Bay subpopulations – COSEWIC).
Northern Hudson Bay provides a more localized reference point: its fully corrected 2018 survey estimated 19,232 narwhals, including 13,655 adults. Because the global estimate covers 10 of 12 recognized stocks, regional survey numbers should not be added casually to produce a new global total.
Walruses and Arctic marine mammals
The Pacific walrus population is approximately 200,000 animals, while the Atlantic walrus population is estimated at approximately 20,000–30,000. These are current species-profile estimates from the Norwegian Polar Institute and represent different population groupings (Walrus – Norsk Polarinstitutt).
Svalbard’s walrus estimates show why survey method and date matter. An August 2006 survey estimated the Svalbard subpopulation at 2,500 animals after adjusting for animals in the water. A separate 2012 figure put the population at approximately 3,900 animals (Walrus – Norsk Polarinstitutt; Svalbard’s wildlife – The Cruise Handbook for Svalbard). The values should be treated as period-specific estimates rather than a precise annual growth series.
Walrus tusks can grow to about 1 metre in length, and one tusk can weigh about 5 kilograms (Walrus – Norsk Polarinstitutt).
At the broader ecosystem level, the 2009 Arctic Report Card identified 7 core marine-mammal species occurring in the Arctic year-round and commonly associated with sea ice. The Arctic Biodiversity Assessment reviewed 35 marine-mammal species that inhabit or seasonally use Arctic waters; its 2012 classification included 11 core Arctic marine-mammal species and 24 selected sub-Arctic species. Nine of the 11 core species were present in each of Baffin Bay, Davis Strait, and the Barents Sea (Arctic Report Card 2009).
Seabirds and shorebirds
The global ivory gull population was estimated at 6,325–11,500 breeding pairs in 2008. Approximately 86% of the estimated population occurred at colonies in Arctic Russia. In Canada, the population declined by 70% at colonies known before 2002, measured from the 1980s baseline. These figures are reported in the 2019 Arctic Report Card (NOAA Arctic Report Card 2019).
A shorebird study in Alaska’s Arctic National Wildlife Refuge estimated populations for 16 species using the 2019 and 2022 surveys. Their combined estimated abundance was 135,178 birds, with a 95% confidence interval of 113,532–156,824. The combined estimate was approximately 17% lower than the comparable 2002 and 2004 surveys (Breeding shorebird surveys in the Arctic National Wildlife Refuge – USGS).
The change was not uniform across species. Four shorebird species showed statistically significant decreases between the paired survey periods, while one species, the pectoral sandpiper, showed a statistically significant increase. The study’s combined result is therefore a multi-species estimate, not evidence that every surveyed species changed in the same direction.
Arctic foxes and Svalbard reindeer
White-morph arctic foxes make up 84–97% of the Svalbard population and 97–99% of the circumpolar arctic-fox population, according to the Norwegian Polar Institute’s species profile (Arctic fox – Norsk Polarinstitutt). In the Adventdalen–Sassendalen area, arctic-fox density was estimated at 1–1.5 foxes per 10 km2. Rabies prevalence in Svalbard arctic foxes was 0.3% between the recorded outbreaks of 1980 and 2011.
Reindeer add another useful scale comparison. Seven reindeer subspecies occupy different regions of the circumpolar range. On Brøggerhalvøya, 15 Svalbard reindeer were reintroduced in 1978; the population grew to 360 animals by 1993, then fell below 100 during winter 1993/94 (Svalbard reindeer – Norsk Polarinstitutt).
Svalbard reindeer commonly occur in groups of 3 to 5 individuals. During the rut, males gather harems of up to 10 females. These group-size figures describe observed species behavior rather than a population census, so they are best used to set expectations for sightings rather than to estimate abundance.