Biology 2483A Lecture Notes - Lecture 6: Sea Anemone, Amphiprioninae, Phenotypic Plasticity
11 Dec 2017
School
Department
Course
Professor
Document Summary
Life history: a(cid:374) orga(cid:374)is(cid:373)"s life history is a record of events relating to its growth, development, reproduction, and survival. Life history characteristics include: age and size at sexual maturity, amount and timing of reproduction, determining when to die. So there is strong selection pressure to avoid conflict. Sea anemones are a scarce resource for clownfish necessitates conflict are more likely to survive and reproduce. Individuals within a species show variation in life history traits due to genetic variation or environmental conditions: the life history strategy of a species is the overall pattern in average timing and nature of life history events. Ideal or optimal life histories maximize fitness genetic contribution to future generations. Phenotypic plasticity: one genotype may produce different phenotypes under different environmental conditions. For example, growth and development may be faster in higher temperatures. Looking at trunks: changes in life history traits can cause change in adult morphology, graph, how wide vs. how tall.
