BIOL 1001 Lecture Notes - Lecture 24: Guppy, Exponential Growth, Parental Investment
Document Summary
Bio 1001 population ecology continued march 20. In years when beech trees produced a large crop of nuts, growth rings of the tree trunk are narrow. The tradeoff that exists between growth and reproduction. Every organism is involved in: maintenance, grown and reproduction (each patterns = life history) If you use one strategy, you have to decrease the use of another. High fecundity = low survivorship and vice versa, moderate fecundity = moderate survivorship. Get selection for strategy that leaves greatest number of offspring. Smaller the organism, shorter the generation time. Grow quickly, sexual maturity earlier but low survivorship. If guppies from different populations were kept identical, aquaria in a laboratory. If the differences in the life history traits of guppy populations are actually due to environmental factors not genetic. The laboratory populations should become more similar in life history characteristics. If it was genetic then difference should persist.
