Speciation Flashcards
The type of reproductive isolation in which a physical barrier separates two populations
Allopatric speciation
Term that describes the point where two groups in a population separate into different species during speciation
Adaptive radiation
The term that means that organisms tend to try to meet with organisms that have similar traits to themselves
Assortive mating
The type of reproductive isolation in which an organism’s courtship activities cause populations to separate ex. dance and songs
Reproductive isolation: behavioral
The group of individuals that can interbreed and produce fertile offspring Bret typically cannot breed with members of another species
Biological species concept
The occurrence when a population size is reduced for at least one generation, it can reduce genetic variation greatly.
Bottleneck effect
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Convergence
Occurs when natural selection for similar environmental factors causes unrelated organisms to resemble each other
Convergent evolution
The term that means that a new species is created when enough gene flow occurs
Divergence
The establishment of a new population far from the original population may lead to the evolution of several new species
Founders effect
The type of reproductive isolation and which sperm and egg are not able to combine
Reproductive isolation: gametic incompatibility
The total genetic content of a population of organisms in an area
Gene pool
Identifies as separate species populations with a unique lineage
Genealogical species concept
Changes that occur in allele frequency due to chance
Genetic drift
The type of reproductive isolation in which populations are separated because breeding occurs at different times of the year
Reproductive isolation: geological