Title: Unit 6 Glossary
Course: BIS 105 Environmental Biology > Section: BIS 105 Environmental Biology

Unit 6 Glossary

Terms

Term | Definitions
biological pest control | Also known as biocontrol, it is the deliberate introduction of a predator species into an area in order to control a pest species.
biomimicry | Using organisms to inspire technology and engineering projects.
coevolution | Evolution of interacting species in which each species is an important factor in the natural selection of the other species.
commensalism | Symbiotic relationship in which one species benefits while the other species is not affected.
competition | Relationship between organisms that strive for the same limited resources.
exotic species | A species that has been introduced to an ecosystem in which it did not evolve.
interspecific competition | Competition between members of different species.
intraspecific competition | Competition between members of the same species.
invasive species | A species that has been introduced to an ecosystem in which it did not evolve.
keystone species | Species that plays an important role in the community by controlling the prey population and, indirectly, the populations of many other species in the community.
mimicry | Using appearance to resemble another organism.
mutualism | Symbiotic relationship in which both species benefit.
parasitism | Symbiotic relationship in which one species (the parasite) benefits while the other species (the host) is harmed.
pioneer species | First colonizer species in an area undergoing ecological succession.
predation | Relationship in which members of one species (the predator) consume members of other species (the prey).
primary succession | Ecological succession that occurs in an area that has never been colonized before.
secondary succession | Ecological succession that occurs in a formerly inhabited area that was disturbed.
species evenness | Relative abundance of each species in a community.
species richness | The number of different species in a community.
succession | Process by which a whole community changes through time following a disturbance.
symbiosis | Close association between two species in which at least one species benefits.
true predation | Type of predation in which the predator kills its prey.