BIOL 2060 Chapter Notes -Gaston Bonnier, Parapatric Speciation, Lizard (Camouflage)
7 Feb 2014
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Phenotype: is a product of the interaction between an organism"s genes; organism"s observable characteristics or traits: such as its morphology or development. Genotype: genetic makeup of a cell, an organism, or an individual common garden study: representatives from different populations that had distinctive growth forms, which he called ecotypes, were grown under the same environmental conditions in a common location. Heritability: the proportion of total phenotypic variation in a trait attributable to genetic variation; determines the potential for evolutionary change in a trait homozygous: having identical alleles at a given locus heterozygotes: having different alleles at a given locus. Because the environments in which sauromalus lives vary greatly across its range, we might expect that selection have favored different characteristic in different parts of the species" range. Prefers to eat herbaceous plants and the amount of winter rainfall largely determines the amount of plant growth in these desert environments therefore higher rainfall means more available food.
