BIOL 4471 Lecture Notes - Lecture 11: Ruffed Grouse, White Stork, Vertical Draft
Document Summary
Chapter 7 territoriality and migration: knots, move about to achieve equal densities over total surfaces provided by 7 tidal flats, habitat selection. Ideal free distribution theory organism is free to move about to achieve constant intake of prey (left) surface distribution model, (right) ideal free distribution model. Birds occupying preferred black mangrove habitat leave sooner for northern breeding grounds than do birds forced into second rate, second growth scrub: birds wintering, birds wintering in most productive habitat has highest reproductive success. Males and females in wet forest were more reproductively successful and more fit males > females: white stork, four generations of satellite tags were used to track stork, butterfly flight. White always won when he was no captured. Survival rate of those staying in same territory was higher than those wandering around. Wanderers may benefit by gaining more resources or partners: beldings ground squirrels.
