BIOB11H3 Study Guide - Final Guide: Semelparity And Iteroparity, Herbivore
Document Summary
Life history strategy: overall pattern of timing & nature of life history events averaged across all individuals in the species (7. 3, shaped by division of energy & resources between growth, reproduction and survival, natural selection determines the effects of these strategies, not the individual"s choice, environmental differences, phenotypic plasticity one genotype may produce different phenotypes under different environmental conditions (7. 4, example a: ponderosa pine trees in cool, moist climates allocate more resources to leaf production than do trees in desert climates, example b: desert trees are shorter than those grown in cool climates but they do have thicker trunks, phenotypic plasticity may produce a continuous range of growth rates or discrete types (morphs with no intermediate forms, example: spadefoot toad tadpoles contain two morphs. Mode of reproduction is a basic life history trait: asexual reproduction, simple cell division, occurs in all prokaryotes & many protists, however, some multicellular organisms reproduce both asexually and sexually (e. g. corals, study fig 7. 6)
