Baleen Whales Are Not Important as Prey for Killer Whales (Orcinus orca) in High-Latitude Regions
Certain populations of killer whales Orcinus orca feed primarily or exclusively on marine mammals. However, whether or not baleen whales
Movements of North Pacific Blue Whales During the Feeding Season off Southern California and Southern Fall Migration
The satellite-acquired locations of 10 blue whales (Balaenoptera musculus) tagged off southern California with Argos radio tags were used to
Killer Whales and Marine Mammal Trends in the North Pacific – A Re-Examination of Evidence for Sequential Megafauna Collapse and the Prey-Switching Hypothesis
Springer et al. (2003) contend that sequential declines occurred in North Pacific populations of harbor and fur seals, Steller sea
Southern Hemisphere Whales Wintering off Central America: Insights from Water Temperature into the Longest Mammalian Migration
We report on a wintering area off the Pacific coast of Central America for humpback whales (Megaptera novaeangliae) migrating from
Migratory Destinations of Humpback Whales Wintering in the Mexican Pacific
The migratory destinations of humpback whales that winter off the Pacific coast of Mexico were examined using photo-identification. Fluke photographs
Behavioral Context of Call Production by Eastern North Pacific Blue Whales
We assessed the behavioral context of calls produced by blue whales Balaenoptera musculus off the California coast based on acoustic,
Blue Whale Visual and Acoustic Encounter Rates in the Southern California Bight
The relationship between blue whale (Balaenoptera musculus) visual and acoustic encounter rates was quantitatively evaluated using hourly counts of detected
Migratory Destinations of Humpback Whales that Feed off California, Oregon and Washington
The migratory destinations of humpback whales that feed off California, Oregon and Washington were determined using photo-identification. Fluke photographs of
Reproductive Rates of Humpback Whales off California
From 1986 to 1996 we examined the reproductive rates, calving rates, and reproductive histories of mature females as part of
Sink or Swim: Strategies for Cost-Efficient Diving by Marine Mammals
Locomotor activity by diving marine mammals is accomplished while breath-holding and often exceeds predicted aerobic capacities. Video sequences of freely