Marine Vertebrates: Lecture 13 1.Spermaceti organ 2. Migration.
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Marine Vertebrates: Lecture 13 1. Spermaceti organ 2. Migration
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Transcript of Marine Vertebrates: Lecture 13 1.Spermaceti organ 2. Migration.
Migration: Overview
• Migration: To pass, usually periodically, from one region or climate to another for feeding or breeding
• Key questions What is an animal’s migratory route?
• Methods of study? Why do they migrate? How do they find their way? Human impact on migratory patterns
E. Pacific Grey Whale migration
•What’s in the north ~May – Nov?
•What’s in the south ~ Dec – April? For pregant
females/offspring For others?
Humpback migrations
•Note split of Australian population Recent
incident: “lost” males and song change
http://migration.files.wordpress.com/2007/06/migration.gif
Movement Patterns of Wandering Albatrosses
EastEast
Sou
thS
outh
South
Africa
(Shaffer et al. 2001, 2003)