SpATS Study Results

While the SpATS study is ongoing, a great deal of data has already been gathered. Since 2002, over 5400 duck nests have been found and all 120 study sites have been visited at least once.

The following chart illustrates the relationship between nesting success and the amount of perennial vegetation such as grasses and forbs on the landscape, within Parkland and Prairie SpATS study sites.

Results chart

This figure suggests a connection between perennial vegetation and waterfowl nesting success. However, a strong relationship between perennial vegetation and nesting success has not been demonstrated. But information through 2007 suggests that nesting success at prairie sites is meeting or exceeding the levels thought necessary to maintain stable duck populations - between 12 to 20% - while nesting success at parkland sites is somewhat lower.

Other SpATS analyses are ongoing.

Disclaimer:

SpATS data presented on this Web site cannot be used without written permission from the authors.

 
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