vocabulary review ch 20 community ecology. a relationship between two species in which one species,...
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![Page 1: Vocabulary Review Ch 20 Community Ecology. A relationship between two species in which one species, the predator, feeds on the other species, the prey](https://reader036.vdocuments.mx/reader036/viewer/2022081519/56649e9c5503460f94b9d120/html5/thumbnails/1.jpg)
Vocabulary Vocabulary ReviewReview
Ch 20Ch 20
Community Community EcologyEcology
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A relationship between two
species in which one species, the
predator, feeds on the other species,
the preyPredation
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A relationship between two species in which both species compete for limited resources
such that both species are negatively affected
by the relationship
Interspecific competition
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A relationship in which two different
organisms live in close association with each other
Symbiosis
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A relationship between two species
in which one species, the
parasite, benefits from the other
species, the host, which is harmed
Parasitism
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A relationship between two
species in which both species
benefit
Mutualism
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A relationship between two organisms in
which one organism benefits and the other is
unaffectedCommensalism
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The number of different species
in an area or community
Species richness
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A measure of the relative
abundance of each species in an
ecological community
Species evenness
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A pattern in which the number of
species in an area increases as the area increases
Species-area effect
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In ecology, an event that changes a community by removing or destroying
organisms or altering resource
availabiltyDisturbance
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The tendency of a community to
maintain a relatively constant
structure
Stability
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A gradual process of change and
replacement in a community
Ecological succession
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Succession that begins in an area
that previously did not support life
Primary succession
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The process by which one
community replaces another community
that has been partially or totally
destroyed
Secondary succession
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A species that colonizes an
uninhabited area and that starts an ecological cycle in which many other species become
establishedPioneer species
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A community that, after a process of
ecological succession, has
reached a generally stable
state
Climax community