The Effect of Goose Management on Water Quality

• Published in: Proceedings of the Vertebrate Pest Conference
• Main Authors: Swallow, Matthew, Huffman, Jane, Van Why, Kyle, D’Angelo, Gino
• Format: Article in Journal/Newspaper
• Language: English
• Published: eScholarship, University of California 2010
• Subjects: Branta canadensis; Canada geese; fecal coliforms; goose management; water quality; Life Sciences; Canada
• Online Access: http://www.escholarship.org/uc/item/3zj01607

Canada geese are causing a growing concern regarding their impact on public health and safety risks. In Pennsylvania, USDA Wildlife Services manages geese in problematic areas. The purpose of goose management is to reduce damage to agricultural, urban, and natural resources, as well as reducing threats to public health. For this study, three impoundments were monitored bi-weekly from May to September along with a single sampling date in both October and November 2009. Two of the impoundments were managed by the USDA, while the third was an unmanaged control site. The objective of the study was to compare water chemistry and fecal coliform counts from the three sites. Dissolved oxygen, pH, and water temperature were measured, along with fecal and total coliforms, to monitor water quality from the nesting to migration seasons. Results from fecal coliform testing show strong evidence for the benefits of management, with coliform levels up to 3 times higher in the unmanaged impoundment. Based on these findings, we conclude that USDA’s methods of management are effective in reducing health threats as well as improving water quality.