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We compared pairing success of male Kirtland's Warblers (Dendroica kirtlandii) in different habitats to test the hypothesis that a lower proportion of males in marginal habitat are mated. Fewer than 60% of the males in marginal habitat were paired, but 95% of the males in suitable habitat were…
Author(s): John R. Probst, Jack P. Hayes
Keywords: Kirtland's Warblers, Dendroica kirtlandii, endangered species
Source: The Auk 104: 234-241. April 1987
Year: 1987
Because of the sustained growth of the gray wolf (Canis lupus) population in the western Great Lakes region of the United States, management agencies are anticipating gray wolf removal from the federal endangered species list and are proposing strategies for wolf management. Strategies are needed…
Author(s): Robert G. Haight, Laurel E. Travis, Kevin Nimerfro, L. David Mech
Keywords: animal damage, Canis lupus, control, endangered species, model, recovery, simulation, wolf
Source: Wildlife Society Bulletin 2002, 30(3):1-9
Year: 2002
This paper examines the arguments employed in the debate over reintroduction of wolves into Idaho, Montana, and the Yellowstone National Park Ecosystem; and in Arizona and New Mexico. The study reviews common rhetorical themes used by advocates and opponents of wolf reintroduction and identifies a…
Author(s): Dayle C. Hardy-Short, C. Brant Short
Keywords: wilderness, endangered species, Canis lupus, wolf reintroduction, politics, conflict, attitudes, public opinion, policy, Yellowstone National Park, Idaho, Montana, Arizona, New Mexico
Source: In: McCool, Stephen F.; Cole, David N.; Borrie, William T.; O’Loughlin, Jennifer, comps. 2000. Wilderness science in a time of change conference—Volume 2: Wilderness within the context of larger systems; 1999 May 23–27; Missoula, MT. Proceedings RMRS-P-15-VOL-2. Ogden, UT: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 65-72
Year: 2000
The Little South Fork Cumberland River, Kentucky and Tennessee, USA, was a globally important conservation refugium for freshwater mussels (Mollusca:Unionidae) because it supported an intact example (26 species) of the unique Cumberland River mussel fauna including imperiled species. We used…
Author(s): Melvin L. Warren, Wendell R. Haag
Keywords: Cumberland River, endangered species, freshwater mussel, persistence, population decline, Unionidae
Source: Biodiversity and Conservation 14:1383–1400
Year: 2005
Pearly mussels (Unionacea) are widespread, abundant, and important in freshwater ecosystems around the world. Catastrophic declines in pearly mussel populations in North America and other parts of the world have led to a flurry of research on mussel biology, ecology, and conservation. Recent…
Author(s): David L. Strayer, John A. Downing, Wendell R. Haag, Timothy L. King, James B. Layzer, Teresa J. Newton, S. Jerrine Nichols
Keywords: Unionidae, endangered species, spatial structure, food and feeding, lqe history
Source: BioScience, Vol. 54, No. 5, pp. 429-439
Year: 2004
Seventy-seven radio-tagged wolves (Canis lupus), including members of 12 adjacent packs, were located more than 3,000 times and observed on 1,337 occasions, from 1968 through mid-1973. Projected population estimates for the 4,203 square-mile forest were 405 ? 20 for winter 1971-72, and 388 ? 14…
Author(s): L. David Mech
Keywords: Canis lupus, wolf, wolves, radio-tracking, telemetry, population, endangered species, conservation
Source: Research Paper NC-97. St. Paul, MN: U.S. Dept. of Agriculture, Forest Service, North Central Forest Experiment Station
Year: 1973
Decision makers involved in land acquisition and protection often have multiple conservation objectives and are uncertain about the occurrence of species or other features in candidate sites. Model informing decisions on selection of sites for reserves need to provide information about cost-…
Author(s): Jeffrey L. Arthur, Jeffrey D. Camm, Robert G. Haight, Claire A. Montgomery, Stephen Polasky
Keywords: conservation, endangered species, goal trade-offs, optimization, Oregon, site selection model, species representation
Source: Ecological applications. 14(6): 1936-1945.
Year: 2004
Mantle biopsy is a means of obtaining tissue samples for genetic, physiological, and contaminant studies of bivalves; but the effects of this biopsy on survival have not been determined. We describe a simple technique for obtaining such samples from unionacean bivalves and how we compared survival…
Author(s): David J. Berg, Wendell R. Haag, Sheldon I. Guttman, James B. Sickel
Keywords: Unionidae, nondestructive sampling, freshwater mussels, endangered species, mantle biopsy, Actinoais, Quadrula
Source: J. N. Am. Benthol. Soc. 1995, 14(4):577-581
Year: 1995
The traditional approach to wildlife management has focused on single species—historically game species and more recently threatened and endangered species. Several newer approaches to managing for multiple species and biological diversity include managing coarse filters, ecological indicator…
Author(s): Bruce G. Marcot, Michael J. Wisdom, Hiram W. Li, Gonzalo C. Castillo
Keywords: Wildlife habitat, fish habitat, biodiversity, eastside, threatened species, endangered species, sensitive species, management indicator species, species planning
Source: Gen. Tech. Rep. PNW-GTR-329. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 39 p. (Everett, Richard L., assessment team leader; Eastside forest ecosystem health assessment; Hessburg, Paul F., science team leader and tech. ed., Volume III: assessment.)
Year: 1994
An appropriate yardstick for a biodiversity program is how it affects the persistence of viable populations. A coordinated program of biodiversity research could be structured under three overlapping subject areas: (1) threatened, endangered, and sensitive species; (2) restoration of missing,…
Author(s): James W. McMinn
Keywords: Genes, endangered species, plant communities, animal communities, ecosystems
Source: Gen. Tech. Rep. SE-71. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 7 p.
Year: 1991