Richard G LeDuc
Affiliation: National Oceanic and Atmospheric Administration
- Mitochondrial sequence divergence among Antarctic killer whale ecotypes is consistent with multiple speciesRichard G LeDuc
Southwest Fisheries Science Center, La Jolla, CA 92037, USA
Biol Lett 4:426-9. 2008..Despite dramatic differences in morphology and ecology, the relatively low levels of sequence divergence in Antarctic killer whales indicate that these evolutionary changes occurred relatively rapidly and recently...
- Use of chemical tracers in assessing the diet and foraging regions of eastern North Pacific killer whalesMargaret M Krahn
NOAA Fisheries, Northwest Fisheries Science Center, 2725 Montlake Boulevard East, Seattle, WA 98112, USA
Mar Environ Res 63:91-114. 2007..Finally, stable isotope ratio results, supported by field observations, showed that the diet in spring and summer of eastern Aleutian Island transient killer whales is apparently not composed exclusively of Steller sea lions...