Tracking wetland loss to improve evidence-based wetland policy learning and decision making

  • Published source details Clare S. & Creed I.F. (2014) Tracking wetland loss to improve evidence-based wetland policy learning and decision making. Wetlands Ecology and Management, 22, 235-245.


This study is summarised as evidence for the following.

Action Category

Provide general protection for marshes or swamps

Action Link
Marsh and Swamp Conservation
  1. Provide general protection for marshes or swamps

    A study in 1999–2009 of wetlands in the Beaverhill Subwatershed, Alberta, Canada (Clare & Creed 2014) reported that legal protection did not prevent the loss of wetlands. From 1999, wetlands in Alberta were protected by a general policy to conserve their natural state and maintain their area (1993 Wetland Policy), and a legal requirement to obtain a permit for activities that would negatively impact them (1999 Water Act). Between 1999 and 2009, a total of 242 wetlands covering 71 ha were lost in the Beaverhill Subwatershed. Of the area lost, 82% occurred without a permit. The authors suggest they underestimated wetland loss, as they only included cases when the wetland basin was completely removed (and not cases where the basin was drained but its profile remained). Methods: The number and area of wetlands in the Beaverhill Subwatershed were estimated based on remotely-sensed elevation data collected in 1999 and 2009.

    (Summarised by: Nigel Taylor)

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