PSYCH 2TT3 Lecture Notes - Crowned Eagle, Trematoda
12 Jan 2014
School
Department
Course
Professor
Document Summary
Exercise: anti- car- accident behaviour in humans. List 3 adaptations by pedestrians that reduce their probability of being hit by cars. Look both ways (visual inspection) Predation: the central challenge for most animals to stay alive. Crowned eagle video clip: hunting of vervet monkeys of all sizes in east africa. Balancing feeding & antipredatory behaviour. Parental care: 4 months in nest, 9 months to independence. The high concentration patch was either safe or had a predator. The optimal amount of fat in birds: benefits: insurance, insulation, horse racing. 0. 3%*70kg=210gr: birds vary their fat reserves depending on expected benefits & costs, more fat when food is less certain. Less fat when predation risk is higher. Embryos rely on vibration cues (frequency, duration & spacing of vibration events) The eggs are laid on leaves above the water, & hatched tadpoles drop to the water. The leaves are associated w/ terrestrial predators (snakes & wasps), the water has aquatic predators (shrimp & fish)
