Interview with Tom -Rawinski
, respected botanist and conservationist, first broad cast on WPKN on August 13, 2014 Deer and Forests, and the People Who Love Them
, TJ Rawinski, US Forest Service
August 17, 2015, City Council approved the establishment of a deer cull program for the next four years on City of Ann Arbor property beginning in the winter of 2016. In addition, City Council directed city staff to continue to explore an experimental deer fertility control program with the Humane Society of the United States. The deer management program aims to decrease the deer population in order to reduce deer-human negative interactions. City staff will begin work on a culling proposal that will require Michigan Department of Natural Resources approval. Many more details need to be worked out. Communication with residents will continue throughout the cull development process.
- “If we treat nearly 95 to 100 percent of females in the community, I would have good confidence that within the five-year time period, you could see a 50% population reduction,” DeNicola told commissioners. Quoted from "Mt. Lebanon pursues deer sterilization", Sept 10, 2015. Read more at http://www.thealmanac.net/article/20150910/NEWS/150919995
- White Buffalo Presentation
to Ann Arbor City Council, Oct 2016
- Sterilization as an alternative deer control technique: a review
by J.Boulanger, et al.
- Read more
From White-tailed deer (Odocoileus virginianus) browse damage in Ann Arbor, Michigan Bird Hills Nature Area, Winter 2015
This survey of 142 tree saplings (less than 2 meters tall) and shrubs in Bird Hills Nature Area shows that 80% have been browsed by deer, and 51% have half or more branches browsed. This level of browsing could interfere with forest regeneration and diminish the flowers and fruit
available for birds, butterflies, and bees. Further monitoring would be necessary to track mortality, to reveal whether particular tree and shrub species of concern are browsed in future years, and to assess whether wildflower species are also being heavily browsed.
From Status Report: Deer Population Trends and Impacts in County Parks
, February 2014, Washtenaw County Parks and Recreation
Deer are a normal part of the forests and fields of Michigan, but their numbers have grown to unnaturally high levels due to lack of predators. The deer population in Washtenaw County has been steadily increasing over the last 15 years.
Scientists have shown that habitats and deer are most healthy when deer density ranges between 15-20 deer per square mile. Recent aerial studies have shown the density in Ann Arbor to be up to 76 deer per square mile. When the number of deer exceed the "healthy" density level, the plants they depend on begin to disappear. Deer pose a direct threat to the diversity and sustainability of wildlife habitat within Washtenaw County Parks And Recreation Commission natural areas.
From An Evaluation of Deer Management Options, Northeast Deer Technical Committee, April 2008
In the absence of predation or hunting, this kind of reproduction can result in a deer herd doubling its size in one year. This fact was illustrated on the 1,146 acre George Reserve in southern Michigan where biologists at the University of Michigan have been studying the deer population since 1928. The deer herd grew from six deer in 1928 to 162 deer by 1933. More recently, the George Reserve herd grew from 10 deer in 1975 to 212 deer in