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32 Cards in this Set

  • Front
  • Back
interaction betwen species that benefits one and has no efect on other
symboiotic interaction taht benefits both partners
competition between members of different species
interspecific competition
interaction in which one organism (the predator) eats another (prey), typically killing it
interaction in which one organism (the parasite) lives on or in another (the host) and feeds on its tissues
idea that, when two species require exaclty the same resources, competition will drive one or the other to extinction in a share habitat
competitive exclusion
a subdividing of resources in time or space that allows similar species to coexist in a habitat
resource partitioning
joint evolution of two interacting species, brought about by changes in selection pressures operating between the two
free-living organism that captures and fees on other organisms (its prey)
coloration, patterning, or other aspects of form or behavior that make an individual blen with its surroundings
pattern or coloration that makes a toxic organism (or its mimics) easy to detect and avoid
warning coloration
close resemblance of one species to another; confers a selective advantage upon one or both species by deceiving predators
species that can colonize newly formed or newly vacated habitats
pioneer species
type of insect larva that grows and develops in a host organism (usually anothe insect), consumes its soft tissues, and kills it
array of species that can, if habitat remains stable, persist indefinitely without being replaced by other species
climax community
sequence of community development from pioneer species to climax stage in a previously barren habitat
primary succession
recovery of a community to its climax stage following a habitate disturbance, such as a forest fire
secondary succession
idea that more than one stable community can persist in the same region when environmental factors vary
climax-pattern model
a species that has a major role in shaping community structure
keystone species
individuals move away from their home range and successfully establish themselves elsewhere
geographic dispersal
a species that has let the community in which it eveolved and become established elsewhere
exotic species
broad land or ocean region defined by climate, geography, and producer species
idea that the farther away an island is from a source of potential colonizing species, the lower its species diversity will be
distance effect
idea that larger islands support more species than smaller ones at similar distances from sources of colonizer species
area effect
an endemic (native) species that is highly vulnerable to extinction
endangered species
reduction of habitat for a species as a result of environmental destruction
habitat loss
model that predicts the number of species an island will support, based on island size and its distance from a source of colonists
equilibrium model of island biogeography
field devoted to surverying biologial diversity, studying its origins, and attempting to maintain it
conservation biology
any species that provides warning of changes in habitat and impending widespread loss of biodiversity
indicator species
habitat for a large number of species found nowhere else and facing extinction
hot spots
logging of forested slopes in a narrow corridor to lessen negative impacts
strip logging
narrow corridor of vegetation on eithe side of a stream or river
riparian zone