Lecture 10 Orientation

Lecture 10 Orientation - Lecture 10 Orientation &...

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Animal Travels: o Foraging trips: Mountain sheep that eat until all food is gone (rats), and then they move  on until they return eventually, Regular repeated routes within a home range o Foraging trips: American Robin's exploratory foraging trips to and from a nest or den –  usually within a home range or familiar area o Dispersal away from birthplace or so-called “Natal Dispersal”- Screech Owl – a biological  rhythm but not a cycle (happens only once), if they stay too close too home then that’s bad  because of competition, so do parents boot the kids out or do the kids just want to  wander? Role of competition in causing dispersal Observations- saw increased activity by young birds documented by radio  tags to track young owls, Over longer time, the distance traveled by the owls increased until they 
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This note was uploaded on 04/02/2008 for the course BIOL 278 taught by Professor Lohmann during the Spring '08 term at UNC.

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Lecture 10 Orientation - Lecture 10 Orientation &...

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