Unit 2 Review

Front

What is species richness?

Back

Species richness refers to the number of different species in a given area or community.

Front

What does the zone of tolerance refer to in ecological terms?

Back

The zone of tolerance is the area under the curve of a graph that represents the range of conditions in which a species can survive.

Front

Define genetic diversity.

Back

Genetic diversity is the variety of genes within a given species.

Front

What happened to the average beak size in the finch population between 1976 and 1978?

Back

The average beak size in the finch population increased.

Front

What is a climax community?

Back

A climax community is a stable and mature ecological community that has reached a steady state.

Front

What is species evenness?

Back

Species evenness measures how evenly the individuals in a community are distributed among the different species.

Front

Explain the species-area effect.

Back

The species-area effect is the relationship between the area of a habitat and the number of species that it can support.

Front

What is a population bottleneck?

Back

A population bottleneck occurs when a population's size is significantly reduced for at least one generation, leading to a loss of genetic diversity.

Front

Define founder effect.

Back

The founder effect is a phenomenon that occurs when a small group of individuals establishes a new population, leading to reduced genetic variation.

Front

What is ecosystem diversity?

Back

Ecosystem diversity refers to the variety of ecosystems within a given area.