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19 Cards in this Set

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Mutualism
Symbiotic interaction that benefits both partners
Competition
Competition between members of different species.
Predation
Interaction in which one organism (the predator) eats another (prey), typically killing it.
Paratism
Interaction in which one organism (the parasite) lives on or in another (the host) and feeds on its tissues.
Symbiosis
Close association of two or more species during part or all of the life cycle
Commensalism, mutualism, competition, predation, and parasitism are all forms of symbiosis
Competitive exclusion
Idea that, when two species require exactly the same resources, competition will drive one or the other to extinction in a shared habitat.
Resource partitioning
A subdividing of resources in time or space that allows similar species to coexist in a habitat.
Coevolution
Joint evolution of two interacting species, brought about by changes in selection pressures operating between the two.
Camouflage
Coloration, patterning, or other aspects of form or behavior that make an individual blend with its surroundings.
Warning
Pattern or coloration that makes a toxic organism (or its mimics) easy to detect and avoid
Mimicry
Close resemblance of one species to another; confers a selective advantage upon one or both species by deceiving predators.
Pioneer species
Species that can colonize newly formed or newly vacated habitats.
Plant succession
Sequence of community development from pioneer species to climax stage in a previously barren habitat;Recovery of a community to its climax stage following a habitat disturbance, such as a forest fire.
Keystone species
A species that has a major role in shaping community structure.
Exotic species
A species that has left the community in which it evolved and become established elsewhere.
Indicator species
Any species that provides warning of changes in habitat and impending widespread loss of biodiversity.
Endangered species
An endemic (native) species that is highly vulnerable to extinction.
Habitat loss
Reduction of habitat for a species as a result of environmental destruction.
Conservation biology
Field devoted to surveying biological diversity, studying its origins, and attempting to maintain it.