2.1 - 2.3 Flashcard

Front

Why is it easier for more species to migrate to islands that are closer to the mainland?

Back

Because it is easier for species to swim or fly shorter distances.

Front

What does a bottleneck event illustrate about a population's genetic makeup?

Back

The population has less genetic diversity than before.

Front

What can a population bottleneck lead to in terms of diversity?

Back

Loss of genetic diversity.

Front

If an island is far from the mainland, what is likely to happen to the number of species on that island?

Back

The number of species will decrease.

Front

How is genetic diversity described?

Back

The differences in genes among individuals within a population.

Front

What is a bottleneck event in population genetics?

Back

A sharp reduction in the size of a population due to environmental events or human activities.

Front

What is the significance of genetic diversity in a population?

Back

It enhances the population's ability to adapt to changing environments.

Front

How does distance from the mainland affect species richness on islands?

Back

Islands farther from the mainland tend to have fewer species due to limited migration opportunities.

Front

What is the relationship between habitat diversity and species diversity?

Back

Higher habitat diversity often supports greater species diversity.

Front

What is an example of a factor that can cause a bottleneck event?

Back

Natural disasters, such as earthquakes or floods.