Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Richard G. LeDuc"'
Autor:
Frederick I. Archer, Karen K. Martien, Barbara L. Taylor, Richard G. LeDuc, Bonnie J. Ripley, Geof H. Givens, John C. George
Publikováno v:
J. Cetacean Res. Manage.. 11:101-113
The standard null model of panmixia used to test for population subdivision is based on a set of assumptions that can be violated given recent events likely to result in non-equilibrial genetic composition coupled with the complex life histories of m
Autor:
Alexander M. Burdin, Aimee R. Lang, R Jorge Urbán, David W. Weller, D. I. Litovka, Olga Sychenko, Vladimir N. Burkanov, Richard G. LeDuc, Sergio Martínez-Aguilar, Robert L. Brownell, Kelly M. Robertson, Victoria L. Pease
Publikováno v:
Marine Mammal Science. 38:433-468
Autor:
Howard C. Rosenbaum, Paula A. Olson, Luis Bedriñana-Romano, Juan Pablo Torres-Florez, Richard G. LeDuc, Rodrigo Hucke-Gaete, Jorge Ruiz
Publikováno v:
Marine Mammal Science. 31:1580-1586
Autor:
K. Van Waerebeek, Brittany L. Hancock-Hanser, Juan Pablo Torres-Florez, Barbara L. Taylor, Howard C. Rosenbaum, Karen K. Martien, Richard G. LeDuc, Aimee R. Lang, Rodrigo Hucke-Gaete, Frederick I. Archer, Robert L. Brownell
Publikováno v:
Molecular ecology. 26(3)
Many aspects of blue whale biology are poorly understood. Some of the gaps in our knowledge, such as those regarding their basic taxonomy and seasonal movements, directly affect our ability to monitor and manage blue whale populations. As a step towa
Autor:
Erin A. Falcone, Paul R. Wade, Jay Barlow, Phillip J. Clapham, Christine M. Gabriele, C. Scott Baker, John K. B. Ford, David W. Weller, Janice M. Straley, Terrance J. Quinn, Briana H. Witteveen, Barbara L. Taylor, David K. Mattila, John Calambokidis, Manami Yamaguchi, Richard G. LeDuc, Alexander M. Burdin, R Jorge Urbán, Lorenzo Rojas-Bracho
Publikováno v:
Marine Mammal Science. 27:793-818
We estimated the abundance of humpback whales in the North Pacific by capture-recapture methods using over 18,000 fluke identification photographs collected in 2004–2006. Our best estimate of abundance was 21,808 (CV = 0.04). We estimated the biase
Autor:
Paul R. Wade, Richard G. LeDuc, K. R. Hough, Cara Wilson, O. Vasquez, Kim E. W. Shelden, Amy S. Kennedy, A. De Robertis, Shannon Rankin, L. Munger, R. Booth, J. Napp
Publikováno v:
Endangered Species Research. 13:99-109
The North Pacific right whale Eubalaena japonica was heavily exploited throughout the Gulf of Alaska by both historical whaling and 1960s illegal Soviet catches. It is now extremely rare in this region (2 sightings between 1966 and 2003 and passive a
Autor:
Paul R. Wade, David K. Ellifrit, Richard G. LeDuc, Robert L. Pitman, Graeme M. Ellis, Marilyn E. Dahlheim, Craig O. Matkin, John W. Durban, Lance G. Barrett-Lennard, Janice M. Waite
Publikováno v:
Marine Biology. 157:1591-1604
We used photographic mark-recapture methods to estimate the number of mammal-eating ''transient'' killer whales using the coastal waters from the central Gulf of Alaska to the central Aleutian Islands, around breeding rookeries of endangered Steller
Autor:
John W. Bickham, Barbara L. Taylor, Frederick I. Archer, Richard G. LeDuc, Karen K. Martien, Ryan M. Huebinger, Phillip A. Morin
Publikováno v:
Molecular Ecology Resources. 9:498-504
Microsatellite genotyping from samples with varying quality can result in an uneven distribution of errors. Previous studies reporting error rates have focused on estimating the effects of both randomly distributed and locus-specific errors. Sample-s
Autor:
Richard G. LeDuc, Paul R. Wade, Nicole M. Hedrick, Phillip A. Morin, William F. Perrin, Barbara L. Taylor, Michael Etnier, Kelly M. Robertson
Publikováno v:
Marine Mammal Science. 22:897-909
Little is known about the historical range of killer whale ecotypes in the eastern North Pacific (ENP). It is possible that ranges have shifted in the last few decades because of changes in availability of food. In particular, the southern resident e
Autor:
Paul R. Wade, Lance G. Barrett-Lennard, Douglas G. Burrows, John W. Durban, David P. Herman, Margaret M. Krahn, Richard G. LeDuc, Craig O. Matkin
Publikováno v:
Marine Ecology Progress Series. 302:275-291
Blubber biopsy samples from eastern North Pacific killer whales Orcinus orca were ana- lyzed for fatty acids, carbon and nitrogen stable isotopes and organochlorine contaminants. Fatty acid profiles were sufficiently distinct among the 3 reported eco