ENWC201 Lecture Notes - Lecture 7: Sandhill Crane, Whooping Crane, Brown Thrasher

• School: University of Delaware
• Department: Entomology and Wildlife Conservation
• Course: ENWC201
• Professor: Mc Carthy Kyle

Document Summary

Enwc: animal behavior, animal behavior, behavior: the actions or reactions of an organism in response to external or internal stimuli, behavioral ecology, the study of: The ecological and evolutionary basis for animal behavior. 1400 birds to 1941: 15 birds) people placed a whopping crane egg with a sandhill crane as they are similar when babies. Sandhill would raise the whopping crane as their own and they would migrate and imprinted. Worked well until after migration when the would try to mate they were unsuccessful. Discontinued in 2005: now they use humans in puppet suits to have whooping cranes babies to imprint on them and the suits helps the babies to identify what a whooping crane looks and sounds like. Polyandry: females associate with many males (i. e. red- necked phalarope) Get in groups to keep warm during cold temperatures: predator avoidance, confusion: species create confusion by getting into large groups to confuse predators, dilution, predator detection, many eyes hypothesis.