Ecology Chapter 40

Front 1

interaction betwen species that benefits one and has no efect on other

Back 1

commensalism

Front 2

symboiotic interaction taht benefits both partners

Back 2

mutualism

Front 3

competition between members of different species

Back 3

interspecific competition

Front 4

interaction in which one organism (the predator) eats another (prey), typically killing it

Back 4

predation

Front 5

interaction in which one organism (the parasite) lives on or in another (the host) and feeds on its tissues

Back 5

parasitism

Front 6

idea that, when two species require exaclty the same resources, competition will drive one or the other to extinction in a share habitat

Back 6

competitive exclusion

Front 7

a subdividing of resources in time or space that allows similar species to coexist in a habitat

Back 7

resource partitioning

Front 8

joint evolution of two interacting species, brought about by changes in selection pressures operating between the two

Back 8

coevolution

Front 9

free-living organism that captures and fees on other organisms (its prey)

Back 9

predators

Front 10

coloration, patterning, or other aspects of form or behavior that make an individual blen with its surroundings

Back 10

camouflaging

Front 11

pattern or coloration that makes a toxic organism (or its mimics) easy to detect and avoid

Back 11

warning coloration

Front 12

close resemblance of one species to another; confers a selective advantage upon one or both species by deceiving predators

Back 12

mimicry

Front 13

species that can colonize newly formed or newly vacated habitats

Back 13

pioneer species

Front 14

type of insect larva that grows and develops in a host organism (usually anothe insect), consumes its soft tissues, and kills it

Back 14

parasitoids

Front 15

array of species that can, if habitat remains stable, persist indefinitely without being replaced by other species

Back 15

climax community

Front 16

sequence of community development from pioneer species to climax stage in a previously barren habitat

Back 16

primary succession

Front 17

recovery of a community to its climax stage following a habitate disturbance, such as a forest fire

Back 17

secondary succession

Front 18

idea that more than one stable community can persist in the same region when environmental factors vary

Back 18

climax-pattern model

Front 19

a species that has a major role in shaping community structure

Back 19

keystone species

Front 20

individuals move away from their home range and successfully establish themselves elsewhere

Back 20

geographic dispersal

Front 21

a species that has let the community in which it eveolved and become established elsewhere

Back 21

exotic species

Front 22

broad land or ocean region defined by climate, geography, and producer species

Back 22

ecoregion

Front 23

idea that the farther away an island is from a source of potential colonizing species, the lower its species diversity will be

Back 23

distance effect

Front 24

idea that larger islands support more species than smaller ones at similar distances from sources of colonizer species

Back 24

area effect

Front 25

an endemic (native) species that is highly vulnerable to extinction

Back 25

endangered species

Front 26

reduction of habitat for a species as a result of environmental destruction

Back 26

habitat loss

Front 27

model that predicts the number of species an island will support, based on island size and its distance from a source of colonists

Back 27

equilibrium model of island biogeography

Front 28

field devoted to surverying biologial diversity, studying its origins, and attempting to maintain it

Back 28

conservation biology

Front 29

any species that provides warning of changes in habitat and impending widespread loss of biodiversity

Back 29

indicator species

Front 30

habitat for a large number of species found nowhere else and facing extinction

Back 30

hot spots

Front 31

logging of forested slopes in a narrow corridor to lessen negative impacts

Back 31

strip logging

Front 32

narrow corridor of vegetation on eithe side of a stream or river

Back 32

riparian zone