BIEB 166 Lecture 19 (WI13)

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Biol/Ecology, Behavior, & Evol
BIEB 166
James Nieh

Lecture 19 Humpback Whale Songs - There are still a lot more than we know - Sound of the surf ○ Natural noise that is rather broadband, will cover the frequencies - The sound of individual whales are rather load 1. They seem to have different beams - Relationships among the whales - Similarities in the way of sounds that are produced in the groups that stay together - Social learning 2. Distinctive voices - Frequencies and harmonics can characterize individuals Killer Whales - Calls, not songs - British Columbia and Washington ○ Lives there year-round ○ Shallow water Characteristic features of the whales - Allow us to identify the whales - Relationship between whales 1. Nick 2. Dorsal fin - indentation 3. Saddle patch - Varies between different individuals - Scars (permanent for the life of the year) Long-lasting family structures - Stable, matrilineal groupings - Up to four generations together - Sons and daughters stay with mom - Creation of a whale society - Not know how many they avoid incest Resident whales Transient whales Often seen in residents, occasionally in offshores, but not in any Over lap with residents transients identified to date (distinct northern and southern - Temporarily overlap communities) Large groups of 10-25 whales Smaller groups of 2-5 Echolocate while foraging; highly vocal Rarely echolocate while foraging; passive listeners -Fish and crabs don't have good ears - Marine mammals have good ears -Soci
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