Elk Restoration in Ontario, Canada

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Abstract
Ontario has embarked upon a program to restore elk (Cervus elaphus) that were once native to that province. A comprehensive disease-management strategy has ensured that elk are free of infectious diseases such as brucellosis and tuberculosis prior to shipment to Ontario. Postmortem analysis occurs on elk mortalities in Ontario to ensure that elk are not infected with diseases such as chronic wasting disease and tuberculosis. Between 1998 and 2001, a total of 443 elk were transported from Elk Island National Park, Alberta, and released in four different areas of Ontario. Cumulative mortality for elk in all areas was 26% from 1998 to January 2001. The primary causes of mortality were post-release stress-induced emaciation (21%), wolf predation (20%), transport/handling injuries (10%), bacterial infections (10%), and drowning (7%). Female calves had the highest mortality rates (37%) compared to the other sex and age cohorts (23-24%). Preliminary findings suggest an inverse correlation between the length of time elk are held in enclosures prior to release and the distance they disperse from the release site. The 2001 estimated population of elk in Ontario is about 400 individuals.

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