Isle Royale is a remote wilderness island, isolated by the frigid waters of Lake Superior, and home to populations of wolves and moose. As predator and prey, their lives and deaths are linked in a drama that is timeless and historic. Their lives are historic because we have been documenting their lives for more than five decades. This research project is the longest continuous study of any predator-prey system in the world.
Read the annual reports produced by this study below.
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Ecological Studies of Wolves on Isle Royale, 1990-1991
Rolf O. Peterson
Annual Report 1990-1991 (Covering the thirty-third year of research)
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Ecological Studies of Wolves on Isle Royale, 1989-1990
Rolf O. Peterson
Annual Report 1989-1990 (Covering the thirty-second year of research)
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Ecological Studies of Wolves on Isle Royale, 1988-1989
Rolf O. Peterson
Annual Report 1988-1989 (Covering the thirty-first year of research)
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Ecological Studies of Wolves on Isle Royale, 1987-1988
Rolf O. Peterson
Annual Report 1987-1988 (Covering the thirtieth year of research)
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Ecological Studies of Wolves on Isle Royale, 1986-1987
Rolf O. Peterson
Annual Report 1986-1987 (Covering the twenty-nineth year of research)
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Ecological Studies of Wolves on Isle Royale, 1985-1986
Rolf O. Peterson
Annual Report 1985-1986 (Covering the twenty-eighth year of research)
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Ecological Studies of Wolves on Isle Royale, 1984-1985
Rolf O. Peterson, Richard E. Page, and Kenneth L. Risenhoover
Annual Report 1984-1985 (Covering the twenty-seventh year of research)
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Ecological Studies of Wolves on Isle Royale, 1983-1984
Rolf O. Peterson, Kenneth L. Risenhoover, Richard E. Page, and Jacqueline Wilcox
Annual Report 1983-1984 (Covering the twenty-sixth year of research)
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Ecological Studies of Wolves on Isle Royale, 1982-1983
Rolf O. Peterson, Kenneth L. Risenhoover, Richard E. Page, Jacqueline Wilcox, and Philip C. Shelton
Annual Report 1982-1983 (Covering the twenty-fifth year of research)
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Ecological Studies of Wolves on Isle Royale, 1981-1982
Rolf O. Peterson, Richard E. Page, and Philip W. Stevens
Annual Report 1981-1982 (Covering the twenty-fourth year of research)
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Ecological Studies of Wolves on Isle Royale, 1980-1981
Rolf O. Peterson, Philip W. Stevens, and Philip C. Shelton
Annual Report 1980-1981 (Covering the twenty-third year of research)
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Ecological Studies of Wolves on Isle Royale, 1979-1980
Rolf O. Peterson and Philip W. Stevens
Annual Report 1979-1980 (Covering the twenty-second year of research)
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Ecological Studies of Wolves on Isle Royale, 1978-1979
Rolf O. Peterson, Joseph M. Scheidler, and Philip C. Shelton
Annual Report 1978-1979 (Covering the twenty-first year of research)
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Ecological Studies of Wolves on Isle Royale, 1977-1978
Rolf O. Peterson and Joseph M. Scheidler
Annual Report 1977-1978 (Covering the twentieth year in the Isle Royale Studies)
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Ecological Studies of Wolves on Isle Royale, 1976-1977
Rolf O. Peterson and Joseph M. Scheidler
Annual Report 1976-1977 (Covering the nineteenth year in the Isle Royale Studies)
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Ecological Studies of the Wolf on Isle Royale, 1975-1976
Rolf O. Peterson and Durward L. Allen
Annual Report 1975-1976 (Covering the eighteenth year in the Isle Royale Studies)
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Ecological Studies of the Wolf on Isle Royale, 1974-1975
Rolf O. Peterson and Durward L. Allen
Annual Report 1974-1975 (Covering the seventeenth year in the Isle Royale Studies)
