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Feeding performance by sympatric blue and fin whales exploiting a common prey resource Public Deposited

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  • A major focus in macroecology is to understand the mechanisms that drive differences in habitat, morphology, and behavior in closely related species (Brown 1995). Within this paradigm, energy use and prey acquisition play a fundamental role in affecting behavior, especially with respect to foraging patterns and predator‐prey interactions. Because resources may occur in discrete regions and are often limited, sympatric organisms that feed in similar ways partition resources, when they are limited, both to avoid competition and maximize energy gain (Pianka 1974, Schoener 1983). Baleen whales (Mysticeti) comprise more than a dozen species that have evolved a bulk‐filter feeding strategy that enables the efficient exploitation of low trophic level oceanic resources. Although mysticetes are opportunistic predators that feed on diverse prey types, from schooling fish to small copepods, many sympatric baleen whale species, including blue (Balaenoptera musculus) and fin whales (Balaenoptera physalus), target the similar resources. What remains unknown, however, is whether resources are partitioned when baleen whales and prey overlap in both time and space.
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  • Friedlaender, A. S., Goldbogen, J. A., Hazen, E. L., Calambokidis, J., & Southall, B. L. (2015). Feeding performance by sympatric blue and fin whales exploiting a common prey resource. Marine Mammal Science, 31(1), 345–354. doi:10.1111/mms.12134
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  • 31
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  • 1
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  • This research was supported by the Marine Mammal Program within the U.S. Office ofNaval Research.
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  • description.provenance : Made available in DSpace on 2015-01-28T20:11:14Z (GMT). No. of bitstreams: 1 FriedlaenderAriFisheriesWildlifeFeedingPerformanceSympatric.pdf: 1203061 bytes, checksum: 7d408ecfb4bed22813e6d2dd687d48ae (MD5) Previous issue date: 2015-01
  • description.provenance : Approved for entry into archive by Erin Clark(erin.clark@oregonstate.edu) on 2015-01-28T20:11:14Z (GMT) No. of bitstreams: 1 FriedlaenderAriFisheriesWildlifeFeedingPerformanceSympatric.pdf: 1203061 bytes, checksum: 7d408ecfb4bed22813e6d2dd687d48ae (MD5)
  • description.provenance : Submitted by Erin Clark (erin.clark@oregonstate.edu) on 2015-01-28T20:10:56Z No. of bitstreams: 1 FriedlaenderAriFisheriesWildlifeFeedingPerformanceSympatric.pdf: 1203061 bytes, checksum: 7d408ecfb4bed22813e6d2dd687d48ae (MD5)

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