The portion of a niche space where a population can persist.

The scientist who came up with the theory that genes come in pairs and are inherited as distinct units.

When small population size leads to the changes in frequencies of traits by chance.

The three requirements of natural selection to act on a population.

The study of evolutionary relationships among species.

The actual niche space that a species occupies given competitive restraints.

The rearrangement of genetic material, especially by crossing over in chromosomes or by the artificial joining of segments of DNA from different organisms

A period during which only a few individuals survive and become the only ancestors of the future generations of the population.

The three modes of selection.

The collection of mechanisms which lead to two species being unable to inter-breed.

The concept that two species who use the same resources cannot exist in the same community.

When a purine or pyrimidine nucleotide is substituted with a nucleotide of a different kind.

The phenomenon where differences among similar species whose distributions overlap geographically are accentuated in regions where the species co-occur, but are minimized or lost where the species' distributions do not overlap.

The evolution of a population by natural selection in which hereditary variants most favorable to organismal survival and reproduction are accumulated and less advantageous forms discarded.

The three types of speciation.

The definition of a niche where a species has a particular position in a community.

A statistical association between alleles at one locus and alleles at a different locus, the consequence of which is that selection on one locus (e.g., a locus affecting an ecological trait such as color pattern) causes a correlated evolutionary response at the other locus.

The theory that genetic change is primarily the result of
mutation and genetic drift, and different molecular
genotypes are neutral with respect to each other.

The theory that there is a trade-off between combinations of traits which focus on increased quantity of offspring vs. quality of parental investment.

The process in which organisms diversify rapidly from an ancestral species into a multitude of new forms, particularly when a change in the environment makes new resources available, creates new challenges, or opens new environmental niches.

The definition of a niche where a species has a defined range of environmental conditions in which it can persist.

Multiple phenotypic effects of a gene (e.g.,
a gene affecting color pattern also affects mating
preferences)

The principle stating that the genetic variation in a population will remain constant from one generation to the next in the absence of disturbing factors.

Organisms which are characterized by a single reproductive episode.

A connected series of neighboring populations, each of which can interbreed with closely sited related populations, but for which there exist at least two "end" populations in the series, which are too distantly related to interbreed.