IBA Eastern Devon Island Nunataks
Eastern Devon Island, Nunavut
Site Summary
NU057 Latitude
Longitude
75.358° N
80.922° W
Elevation
Size
1,500 m
6,088.02 km²
Habitats:
other
Land Use:
Not Utilized (Natural Area)
Potential or ongoing Threats:
Disturbance, Oil slicks
IBA Criteria: Globally Significant: Congregatory Species, Nationally Significant: Threatened Species, Restricted Range Species
Conservation status:
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Site Description
Most of the land on Eastern Devon Island, Nunavut is covered by the Devon ice cap. The area is underlain by metamorphic and granitic rocks of the Canadian Shield. Nunataks (rock outcrops rising above the ice fields) occur along major glaciers flowing out to the northern coast and in the southeastern corner of the icecap. The nunataks reach elevations up to 1500 m.
Birds
There are four separate Ivory Gull colonies on Eastern Devon Island, each about 20-30 kilometres apart from the next. The colonies were surveyed in 1982, and the estimated number of birds at each colony was 25, 30, 30, and 6. Breeding has not been confirmed at these colonies and the population estimates are highly uncertain. The 91 birds counted in 1982 represents 4% of the nationally vulnerable Canadian Ivory Gull population (and thus 4% of the North American population). However, population estimates for this far-ranging nomadic bird are uncertain.



IBA Criteria
SpeciesT | A | I Links Date Season Number G C N
Ivory Gull 1982 SU 91
Note: species shown in bold indicate that the maximum number exceeds at least one of the IBA thresholds (sub-regional, regional or global). The site may still not qualify for that level of IBA if the maximum number reflects an exceptional or historical occurrence.
 
Conservation Issues
The remote and inaccessible location of the Ivory Gull breeding colonies limits direct risk from human disturbance. At other sites, disturbance by humans, and in particular, low-flying aircraft have resulted in colony abandonment. In the past, hydrocarbon exploration has been proposed for western Baffin Bay and if conducted may result in disturbance and pollution of feeding areas.

The IBA Program is an international conservation initiative coordinated by BirdLife International. The Canadian co-partners for the IBA Program are Birds Canada and Nature Canada.
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