Random
When organisms move in or out of a population
What is gene flow
Speciation event due to reproductive isolation when populations are overlapping
What is Sympatric Speciation
a form of macroevolution demonstrated in the predator/ prey relationship
What is coevolution?
The difficulty in identifying species using fossil specimens is a limitation of which species concept
Biological species concept
A type of reproductive isolation due to different breeding seasons
What is temporal isolation?
Random changes in allele frequencies
A type of reproductive isolation due to different mating rituals
What is behavioral isolation?
Changes in gene frequencies occur following the separation of fish in a flash flood from the main population and subsequently establish a new population in the nearby lake.
The founder effect
Analogous structures are a limitation of which species concept
A type of reproductive isolation due to different reproductive structures
What is morphological isolation?
Red feathers are a common color in a population. Suddenly, a volcano erupts and kills more than 3/4 of the population. Now green feathers are more common.
What is the effect demonstrated?
What is the bottleneck effect
Species defined as a branch in a taxonomy tree
What is the phylogenetic species concepts?
The change in allele frequencies that occurs over time within a population. This change is due to four different processes: mutation, selection, gene flow and genetic drift.
Microevolution