Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Pamela R. Garrettson"'
Publikováno v:
The Journal of Wildlife Management. 84:1515-1526
Exploratory Surveys of Migratory Birds Breeding in the Western and Central Canadian Arctic 2005–2011
Publikováno v:
Journal of Fish and Wildlife Management. 11:321-340
The Canadian Arctic and subarctic are the primary breeding areas of many species of North American water and land birds. Because of the remote location and the logistical difficulties of working there, wildlife biologists have not systematically surv
Publikováno v:
Wildlife Society Bulletin. 44:5-14
Autor:
Guthrie S. Zimmerman, Pamela R. Garrettson, G. Scott Boomer, John R. Sauer, Patrick K. Devers
Publikováno v:
The Condor. 119:616-628
The U.S. Fish and Wildlife Service (USFWS) uses data from the North American Breeding Bird Survey (BBS) to assist in monitoring and management of some migratory birds. However, BBS analyses provide indices of population change rather than estimates o
Publikováno v:
The Journal of Wildlife Management. 79:1051-1061
We combined data from the Atlantic Flyway Breeding Waterfowl Survey (AFBWS) and the North American Breeding Bird Survey (BBS) to estimate the number of wood ducks (Aix sponsa) in the United States portion of the Atlantic Flyway from 1993 to 2013. The
Publikováno v:
The Journal of Wildlife Management. 78:50-57
Estimates of band reporting probabilities are used for managing North American waterfowl to convert band recovery probabilities into harvest probabilities, which are used to set harvest regulations. Band reporting probability is the probability that
Autor:
Nathan L. Zimpfer, Pamela R. Garrettson, Guthrie S. Zimmerman, J. Andrew Royle, Kimberly D. Magruder, G. Scott Boomer, Todd A. Sanders, Mark D. Koneff
Publikováno v:
The Journal of Wildlife Management. 77:1059-1066
Reliable estimates of annual harvest rates are required for the implementation of mallard (Anas platyrhynchos) adaptive harvest management decision frameworks. Because not all standard bands recovered during the hunting season are reported, band repo
Publikováno v:
The Journal of Wildlife Management. 74:1575-1579
We developed a method for predicting wood duck (Aix sponsa) harvest rates in eastern North America using waterfowl banding and recovery data, annual indices of hunter numbers, and harvest survey data from the United States and Canada. We predicted th
Autor:
J. Andrew Royle, Pamela R. Garrettson
Publikováno v:
Journal of Wildlife Management. 69:800-804
Knowledge of annual waterfowl harvest rates is important to North American waterfowl population management. In particular, harvest rate is a critical parameter governing the relationship between population status and regulatory packages within the ad
Autor:
Pamela R. Garrettson, Thomas E. Lewis
Publikováno v:
The Wilson Journal of Ornithology. 122:612-614
Nest parasitism in dabbling ducks is uncommon. Northern Shovelers (Anas clypeata) are considered infrequent parasites and Blue-winged Teal (A. discors) are rarely hosts to nest parasitism. We documented parasitism of a Blue-winged Teal nest by a Nort