Exam 41: Community Ecology

Two species of birds that compete for the same size of seed eventually develop different beak sizes, allowing them to compete for different sizes of seeds. What has occurred?

Parasitoids are ____ that parasitize insects.

What is an ecological niche?

What are two types of defenses that plants have evolved in response to herbivory?

A type of interaction between two species that has harmful effects on both species is ____.

Wolf spiders and carnivorous sundew plants compete for insects in Florida swamps without actually fighting over the insects. What type of species interaction does this describe?

Most invasive species have a far greater impact in their new home than they did in the community in which they evolved. Why is this?

A species that evolved in one community and later dispersed from its home and became established elsewhere is called a(n) ____ species.

An exotic species that negatively impacts its adoptive community by harming members in that new community is called a(n) ____ species.

The species richness of a community refers to the ____.

How is mimicry helpful to organisms? Give an example.

Phorid flies are being used to combat the invasive red imported fire ants. How do phorid flies kill the ants?

Match the type of species interaction with the correct description. -In this interaction, one species benefits, while the other is neither harmed nor benefited.