Zobrazeno 1 - 10
of 94
pro vyhledávání: '"Marilyn E. Dahlheim"'
Publikováno v:
Fishery Bulletin. 120:79-94
Publikováno v:
Marine Mammal Science. 35:5-21
Autor:
Marilyn E. Dahlheim, Manuel Castellote
Publikováno v:
Endangered Species Research, Vol 31, Pp 227-242 (2016)
Gray whales Eschrichtius robustus, while engaged in underwater signaling, circumvented noise in their environment by altering the structure and timing of their calls. Acoustic responses of whales to both naturally occurring and artificially increased
Autor:
Teresa M. Lawson, Daryle Boyd, Sandra M. O'Neill, Craig O. Matkin, Paul R. Wade, Marilyn E. Dahlheim, Vladimir N. Burkanov, Gina M. Ylitalo
Publikováno v:
Science of The Total Environment. 722:137776
Organochlorine (OC) profiles have been used as chemical “fingerprints” to infer an animal's foraging area. North Pacific killer whale (Orcinus orca) populations are exposed to different levels and patterns of OCs based on their prey, distribution
Autor:
Candice K. Emmons, Janice M. Waite, Brandon E. Chasco, Eric J. Ward, Kristin N. Marshall, K. C. Balcomb, Marilyn E. Dahlheim
Publikováno v:
Ecosphere. 7
Reproductively and geographically isolated populations of predators may be synchronized by a phenomenon known as the Moran effect—specifically if they exhibit common responses to external processes, such as climate, density dependence (parasites, d
Autor:
Marilyn E. Dahlheim, Paula A. White
Publikováno v:
Wildlife Biology. 16:308-322
In this study we present empirical data on predator numbers, movements and area usage, and predation obtained from tracking transient killer whales Orcinus orca throughout the inland waters of southeastern Alaska, USA. During 1991-2007, we documented
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
Publikováno v:
Journal of Evolutionary Biology. 23:20-31
In social species, breeding system and gregarious behavior are key factors influencing the evolution of large-scale population genetic structure. The killer whale is a highly social apex predator showing genetic differentiation in sympatry between po
Publikováno v:
Journal of Biogeography. 36:410-426
Aim To assess the distribution, group size, seasonal occurrence and annual trends of cetaceans. Location The study area included all major inland waters of Southeast Alaska. Methods Between 1991 and 2007, cetacean surveys were conducted by observers
Publikováno v:
Molecular Biology and Evolution. 26:681-689
The diversity of exon-2 (peptide-binding region) of the DQB1 locus (Class II, major histocompatibility complex, MHC) was investigated on an extended sample of populations of three focal cetacean species (two sibling delphinid species and another in t