Implementation of the Deer Management Plan on Hill Island and Other Properties Affected by Hyperabundant Deer Populations

Hyperabundant populations of White-tailed deer threaten the ecological value of the varied forest communities on Hill Island and other park islands. Intensive browsing has led to a distinct lack of understory vegetation and changing forest composition.  Parks Canada has developed a deer management strategy in response to these ecological impacts and is proposing to restore the native vegetation to the area by reducing deer numbers. The deer herd reduction will be conducted as outlined in the Hill Island Hyperabundant Deer Management Plan (2012). The goal of the project is to restore the integrity of the forest ecosystem on Hill Island and the processes to protect the habitat of plant species of conservation concern (e.g. Pitch pine). The deer herd reduction began in 2007 in an effort to reduce populations to a level (~4 deer per km2) that will allow for healthy forest regeneration, and efforts continue to attain that population density. The reduction in deer numbers will be achieved by partnering with the Mohawks of Akwesasne to harvest White-tailed deer from the Island.  The monitoring program will continue to track the effectiveness of the deer reduction strategy in the recovery of the forest ecosystem. This project will be assessed with a basic impact assessment.

Latest update

January 24, 2020 - The assessment decision statement has been issued to the proponent.



Thousand Islands National Park
2 County Road 5, RR 3
Mallorytown, Ontario K0E 1R0
Telephone: 613-923-5261
Fax: 613-923-1021

  • Location

    • Thousand Islands National Park of Canada (Ontario)
  • Nature of Activity

    • Remediation and conservation
  • Assessment Status

  • Start Date

  • Proponent

    Parks Canada
  • Authorities

    • Parks Canada Agency
  • Assessment Type

    Project on federal lands
  • Reference Number


This map is for illustrative purposes. The markers represent the approximate locations based on available data. More than one marker may be identified for a given assessment.


Nearby assessments

...within 200 kilometres
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