• 4 Memorial Library
• 3 Verona Shelving Facility
• 2 Arboretum Research Library
• 2 Limnology Library
• 2 Special Collections (Memorial Library)
• 2 UW Archives
• 1 Geology and Geophysics Library (Leith)
• 1 Wisconsin Historical Society Library
• 1 Wisconsin's Water Library
• 1 Zoological Museum Research Library

• 25 Books

• 7 Zoology
• 5 Ecotourism
• 4 Natural History
• 3 History
• 2 Botany
• 2 Ecology
• 2 Identification
• 2 Wildlife conservation
• 1 American prose literature
• 1 Animals
• 1 Bears
• 1 Biological Evolution
• 1 Birds
• 1 Desert animals
• 1 Desert ecology
• 1 Desert plants
• 1 Environmental sciences
• 1 Evolutionary genetics
• 1 Forest animals
• 1 Forest ecology
• 1 Forest plants
• 1 Genetics
• 1 Genomics
• 1 Historiography

• 5 Beletsky, Les, 1956-
• 4 Wildlife Conservation Society (New York, N.Y.)
• 3 National Audubon Society
• 2 Leopold, Aldo, 1886-1948
• 1 Arizona-Sonora Desert Museum (Tucson, Ariz.)
• 1 Arnold, David, 1946-
• 1 Barrett, Priscilla
• 1 Berra, Tim M., 1943-
• 1 Callicott, J. Baird
• 1 Comus, Patricia Wentworth
• 1 Crump, Martha L
• 1 Farber, Paul Lawrence, 1944-
• 1 Flannery, Tim F. (Tim Fridtjof), 1956-
• 1 Freyfogle, Eric T.
• 1 Gould, Stephen Jay
• 1 Hayes, Harold
• 1 Heinselman, Miron L
• 1 Heinzel, Hermann
• 1 Johnson, Norman A., 1966-
• 1 MacMahon, James A.
• 1 Mahan, Ann
• 1 Mahan, John
• 1 Niering, William A
• 1 Paulson, Dennis, 1937-
• 1 Pearson, David L., 1943-

• 25 English

• 3 United States
• 2 North America
• 1 Alaska
• 1 Amazon River Region
• 1 Australia
• 1 Belize
• 1 Boundary Waters Canoe Area
• 1 Boundary Waters Canoe Area (Minn.)
• 1 Brazil, North
• 1 Galapagos Islands
• 1 Guatemala
• 1 Hawaii
• 1 Mexico
• 1 Minnesota
• 1 Nepal
• 1 Peru
• 1 Petén (Department)
• 1 Petén (Guatemala : Department)
• 1 Royal Chitwan National Park
• 1 Royal Chitwan National Park (Nepal)
• 1 Serengeti National Park
• 1 Serengeti National Park (Tanzania)
• 1 Sonoran Desert
• 1 Superior, Lake
• 1 Superior, Lake, Region

Limit year range