APES Unit 2 Vocab Retention

island biogeography

The study of rates of colonization and extinction of species on islands or other isolated areas based on size, shape, and distance from other inhabited regions

ecological tolerance

the range of conditions in which a species can survive

ecosystem diversity

the variety of ecosystems within a given region

species diversity

The number and relative abundance of species in a biological community.

genetic diversity

The range of genetic material present in a gene pool or population of a species.

provisional services

ecosystem functions that directly supply humans with good,; examples: lumber and fish

regulating services

the service provided by natural systems that helps regulate environmental conditions

supporting services

basic ecosystem processes (nutrient cycles, soil formation, pollination)

cultural services

ecosystems provide cultural or aesthetic benefits to many people

bottleneck effect

Genetic drift resulting from the reduction of a population, typically by a natural disaster, such that the surviving population is no longer genetically representative of the original population.