Birds and Speciation #6 Vocabulary Terms

Allopatric Speciation

a barrier that separates a population (geographic isolation)

Sympatric Speciation

when a species can’t reproduce even when living in the same area

Punctuated Equlibrium

long period of stability interrupted by periods of change

Gradualism

evolution takes place at a slow but steady rate

Reproductive isolation

can not reproduce e()sexually (can’t interbreed)

Ecological Isolation

different habitats/areas no barrier (species can interact with each other but they choose not to)

Behavioral Isolation

different behaviors that are not recognized by different species

Mechanical Isolation

reproductive organs are different in structure (can’t fit)

Temporal Isolation

organisms reproduce at different times or patterns

Hybrid Infertility

hybrid produced is infertile and is less likely to survive