BIOLOGY 544 Study Guide - Midterm Guide: Procellariiformes, Corvidae, Promiscuity
31 Mar 2015
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Why? (slow flight? maneuverability? thermal soaring, dynamic soaring?) soaring/ slow long, broad, big, high surface area fast pointy, short, thin (must be flapped! think of peregrine falcon or small quick bird) maneuverability short, round; wing slots at the end and prominent alula, for control (ex birds that live in forest) thermal soaring long, broad, with wing slots (ex. turkey vulture; able to ride thermals) dynamic soaring slender, long (ex. albatross): no flapping in this case. Load the weight of the bird onto its wings . High aspect ratio: marine soarers : albatross. Diving birds: duck low wing load-----------------------------maneuvers------------------------------ high wing load: thermal soarers : hawk. Different need (if anyone has any other input on this one, add it!) Facultative migration: induced migration in response to some other change: what kinds of evidence do we have that migratory behavior can evolve, must be heritable; able to be passed down, variability! Birds use internal clock: what time it should be.
