LIFESCI 2D03 Chapter Notes - Chapter 13: Bromocriptine, Internal Fertilization, Indeterminate Growth
16 Dec 2016
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Parental care is the activities of an adult that enhance the survivorship of the offspring, which includes nourishing and incubating eggs and young, defending them from predators and sometimes transporting them. Life history traits are traits involved with growth, reproduction and survivorship that are the result of natural selection: sexual maturity, number and size of offspring, level of parental care and survival rate. Life history proposed that natural selection will favour the evolution of behaviours that maximize an individual"s lifetime reproductive success effort that can be allocated toward future offspring: results in trade-off: effort allocated toward reproduction reduces effort the. Some traits are positively and negatively correlated, i. e. large parental body size results in larger offspring. Used principle component analysis which transforms a number of possibly correlated variables into a series of uncorrelated principle components that are linear combinations of the original variables.
