Population Dynamics of Central Canadian Arctic Island Polar Bears
- 1 July 1984
- journal article
- research article
- Published by JSTOR in The Journal of Wildlife Management
- Vol. 48 (3) , 722-728
- https://doi.org/10.2307/3801419
Abstract
The range, abundance and population dynamics of a hunted population of polar bears (Ursus maritimus) in the central Canadian Arctic Islands is described. Range was determined by tag returns and abundance by mark-recapture analysis. Population dynamics were based on family-group observations and life-table analysis using age samples obtained from teeth of live and killed bears. Based on 528 captures, including 60 recaptures, the abundance estimate was 1100 animals with a mean annual survival rate of 0.87 and an overall annual natality rate of 0.47 cubs/reproductive age female per year. The population inhabits an area of .apprx. 45,000 km2 and exists in 4 semidiscrete subgroups between which exchange occurs.This publication has 4 references indexed in Scilit:
- A multiple mark and recapture estimate applied to polar bearsCanadian Journal of Zoology, 1980
- Distribution and Abundance of Seals in the Eastern Beaufort SeaJournal of the Fisheries Research Board of Canada, 1977
- A Technique for Immobilizing and Marking Polar BearsThe Journal of Wildlife Management, 1968
- The Robustness of Homogeneity Tests in 2 x N TablesBiometrics, 1965