BIOL 3863 Lecture Notes - Lecture 5: Phenotypic Plasticity, Semelparity And Iteroparity, Greater Ranges
10 Feb 2019
School
Department
Course
Professor
Document Summary
Chapter 4: pages 84-88, 94-98, and 107, chapter 7: 162-164. Key words/concepts: acclimation, tolerance, temporal and spatial variation in environment, adaptation, performance curves, shelford"s law of tolerance, physiological tradeoffs, phenotypic plasticity. For next time: chapter 7: 156-160, 164-170, 175, key words/concepts: life histories, darwinian demons, r vs k selection, life history tradeoffs, lack clutch, semelparity vs. iteroparity, quiz 3 (over lectures and ch. 4 and 7) is posted and open on blackboard in the content folder. Your responses are due by monday, feb. 4th at 5pm. Outline: variation in the environment, tolerance, plasticity vs adaptation, a plethora of strategies. Stress: an environmental condition that decreases physiological processes, which in turn might reduce fitness. Example: climate warming may be more detrimental in the tropics: high latitude species experience greater ranges in temperature than lower latitude, tropical taxa, high latitude species are likely better adapted to deal with temperature variation. Seasonality (in temp) increases away from the equator.
