Overview Featured Research Publications


Site Map



Assessing the Landscape: Toward a Viable Gray Wolf Population in Michigan and Wisconsin


A Master's Project completed for the School of Natural Resources & Environment, University of Michigan
Damon Hearne, Karen Lewis, Marisa Martin,
Elizabeth Mitton, Carly Rocklen

Advised by Professors Steve Yaffee and Bobbi Low
April 2003


Current range of the gray wolf © Wolf project teamThis study examines the sufficiency of range in Michigan and Wisconsin to support a viable gray wolf (Canis lupus) population after the expected delisting of the gray wolf from the Endangered Species Act. The study began in the spring of 2002 when a group of five graduate students at the University of Michigan’s School of Natural Resources and Environment were contacted by the National Wildlife Federation’s (NWF) Great Lakes Natural Resource Center regarding a project involving wolf range in Michigan and Wisconsin. NWF is a national conservation
organization devoted to the protection of wildlife habitat through advocacy and public education. They sought an impartial, scientific assessment of the need to conserve additional wolf range.




The study was designed to guide interested conservation organizations and state agencies in their efforts regarding gray wolf range in the Current distribution of the gray wolf © Wolf project teamUpper Peninsula of Michigan and Northern Wisconsin. The study examines whether range sufficient to support a viable wolf population will persist in Michigan and Wisconsin after the gray wolf is removed from the list of protected species under the federal Endangered Species Act. A spatial model was created to estimate the amount of wolf range that will exist in the study area in the future. The model incorporates land ownership, population pressures and land use change. The model predicted that sufficient wolf range will be available in the future and is capable of supporting wolf population numbers well above the minimum viable threshold. A population viability analysis was completed to determine the long-term viability of the population. The estimated amount of future wolf range is capable of supporting a viable wolf population. However, unforeseen events may necessitate additional wolf range conservation. Therefore, land conservation tools, legal protections and education programs were evaluated for their ability to yield further conservation of wolf range in Northern Wisconsin and the Upper Peninsula of Michigan.


Final Presentations


Project members and advisors at the group's final presentation, April 2003 © EMIThe Gray Wolf Project group presented the final results and recommendations to the SNRE community and representatives of the National Wildlife Federation in April, 2003. The entire results of this project are now available in PDF Format. Click here to download the entire analysis in a complete document (note that this is a large file).













National Wildlife Federation (Great Lakes Regional Office, Ann Arbor, Michigan)




The project is available in PDF Format . Click here to download the entire analysis in a complete document (note that this is a large file).


Contact Information


To contact the Wolf Group, please email Damon Hearne at dhearne@umich.edu.


Getting Adobe Acrobat Reader for PDF Files


To download the Free Adobe Acrobat Reader to view PDF files, click here. This will open a new window.




Home | Site Map | Search | © 2009 Ecosystem Management Initiative. Terms of Use