BIO E121 Lecture Notes - Lecture 13: Unix System Iii, Avail, Pair Bond
Document Summary
Fall 2019: mating behavior and mate choice, major influence on reproductive success. Seeking/attracting mates: choosing among potential mates, competing for mates, caring for offspring, mating systems, vary in duration and number of relationships. Promiscuous: no strong pair bond: monogamous: 1 male and 1 female for some duration. Polygamous: 1 individual of 1 sex mating with several of the other: sexual dimorphism. Extent to which males and females vary in appearance: varies with type of mating system, monogamous > tend to look similar. Should maximize leaving your own progeny, not helping others. Evolution does not distinguish between genes transmitted directly to offspring and those transmitted through close relatives. Indirect benefits are high: direct costs are low, recipients are close relatives. Type of natural selection in which fitness increases via the reproductive success of close relatives. Influence by similar environmental factors (temp,water avail. , sunlight) Population ecology: considers the number of individuals in an area and population dynamics.
