Relative abundance of tundra bird and mammal species encountered daily on Bylot Island, Nunavut, Canada

Many vertebrate species in tundra communities occur in low abundance but may play an important role in terrestrial food webs. Although estimates of their absolute abundance may not be possible to obtain because of logistic constraints, our understanding of trophic interactions can be enhanced by assessing their relative abundance. This archive contains the relative abundance of species recorded on Bylot Island defined as the number of individuals seen per hour spent in the field per observer. Each observer records daily the animal species encountered in the field and the number of individuals observed. To correct for any potential biases the activities and mode of transportation of observers is also recorded.

Data and Resources

Dataset extent

Map data © OpenStreetMap contributors
Version 1.0
Citation Gauthier, G., Cadieux, M.-C. 2020. Relative abundance of tundra bird and mammal species encountered daily on Bylot Island, Nunavut, Canada, v. 1.0 (2007-2019). Nordicana D73, doi: 10.5885/45645CE-A24D883A6676492E.
  • Author Name: Gilles Gauthier
  • Author Name: Marie-Christine Cadieux
Temporal coverage
  • Temporal coverage start: 2007-06-02  Temporal coverage end: 2019-08-17
Spatial coverage { "coordinates": [ -79.9719, 73.1563 ], "type": "Point" }
Station cen-whapmagoostui-kuujuarapik-research-station
Variable measured
  • Variable name: Daily wildlife observations  Variable description: Observation data contain the date sightings were recorded, the study sector where the sightings took place, the animal species and the number observed, the number of observers, the number of field hours, the transportation mode and the field activity conducted during sightings.  Variable unit: unitless
Measurement Technique
    Date published 2020-03-31
    Date modified 2020-03-31
    Status Public
    • Publisher name: Nordicana D  Publisher URL:
    • Provider name: Centre d'études Nordiques (CEN)  Provider URL: