Zobrazeno 1 - 4
of 4
pro vyhledávání: '"John K. Bidwell"'
Publikováno v:
The Journal of Wildlife Management. 72:1641-1649
We evaluated double-observer methods for aerial surveys as a means to adjust counts of waterfowl for incomplete detection. We conducted our study in eastern Canada and the northeast United States utilizing 3 aerial-survey crews flying 3 different typ
Autor:
James S. Wortham, James D. Nichols, John Tautin, Graham W. Smith, John W. Solberg, Arthur R. Brazda, Paul F. Doherty, Philip P. Thorpe, Elizabeth K. Buelna, Douglas S. Benning, V. Ray Bentley, Fred H. Roetker, Karen S. Bollinger, James R. Goldsberry, Rodney J. King, John K. Bidwell, James F. Voelzer
Publikováno v:
Behavioral Ecology. 13:543-550
Generalizations used to support hypotheses about the evolution of fidelity to breeding areas in birds include the tendency for fidelity to be greater in adult birds than in yearlings. In ducks, in contrast to most bird species, fidelity is thought to
Autor:
Paul F. Doherty, James D. Nichols, John Tautin, James F. Voelzer, Graham W. Smith, Douglas S. Benning, V. Ray Bentley, John K. Bidwell, Karen S. Bollinger, Arthur R. Brazda, Elizabeth K. Buelna, James R. Goldsberry, Rodney J. King, Fred H. Roetker, John W. Solberg, Philip P. Thorpe, James S. Wortham
Publikováno v:
Behavioral Ecology; Jul2002, Vol. 13 Issue 4, p543-550, 8p
Publikováno v:
Journal of Wildlife Management; Sep2008, Vol. 72 Issue 7, p1641-1649, 9p, 4 Charts, 1 Map