Eco Ch 12-15 vocab, Species Interactions

1. Hypothesis that when two or more species coexist using the same resource, one must displace or exclude the other.

• competitive exclusion principle

• parasitoidism

• ecological niche

Relationship between insect larva that kills its host by consuming the host’s soft tissues before pupation or metamorphosis into an adult.

• parasitoidism

• switching

• allelopathy

Relationship between species that is negative to individuals of one species, but neutral to the other.

• predation

• competition

• amensalism

Any interaction that is mutually detrimental to both participants, occurring between species that share limited resources.

• mimicry

• competition

• predation

The range of physical and chemical conditions under which a species can persist (survive and reproduce) and the array of essential resources it utilizes.

• predator defense

• ecological niche

• aggregate response

The maximum rate at which individuals can be harvested from a population without reducing its size; recruitment balances harvesting.

• maximum sustainable yield

• amensalism

• predator satiation

Movement of predators into areas of high prey density.

• warning mimicry

• aggregate response

• competition

The use by organisms of bitter, distasteful, or toxic secretions that deter potential enemies

• chemical defense

• cryptic defense

• induced defense

Evolved characteristics that help prey avoid detection or capture.

• object defense

• warning coloration

• predator defense

Coloration of organisms that makes them resemble or blend into their habitat or background.

• cryptic coloration

• chemical defense

• protective armor