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GWHS AP Biology - Community Ecology Flashcards

Use the terms in this quizlet to help answer the questions in the community ecology packet.

Terms : Hide Images
6505749848CommunityA group of interdependent organisms inhabiting the same region and interacting with each other0
6505749849Interspecific Interactionsinteractions between 2 or more different types of species (includes competition, predation, herbivory, and symbiosis1
6505749850Symbiosisthe relation between two different species of organisms that are interdependent2
6505749851Competitionthe struggle between organisms to survive in a habitat with limited resources3
6505749852Mutualismsymbiotic relationship in which both species benefit from the relationship. +/+4
6505749853Commensalismthe relation between two different kinds of organisms when one receives benefits from the other without damaging it. +/05
6505749854Parasitisma relationship between two species in which one species benefits and from the other species, which is harmed, involves a host6
6505749855Hostan animal or plant that nourishes and supports a parasite7
6505749856Parasitean organism that lives in or on another organism; one who lives off another person8
6505749857Predationan interaction in which one organism captures and feeds on another organism. +/-9
6505749858Interspecific Competitionin a community competition for limited resources between members of different species10
6505749859Competitive ExclusionThe concept that when populations of two similar species compete for the same limited resources, one population will use the resources more efficiently and have a reproductive advantage that will eventually lead to the elimination of the other population, This principle can be used to predict fundamental ecological niches11
6505749860Carrying Capacitylargest number of individuals of a population that a given environment can support12
6505749861Ecological Nichethe sum of a species' use of the biotic and abiotic resources in its environment. Like a "profession".13
6505749862Fundamental NicheThe full potential range of the physical, chemical, and biological factors a species can use if there is no competition from other species.14
6505749863Realized Nichethe range of resources and conditions a species actually uses or can tolerate at optimal efficiency; smaller than fundamental niche15
6505749864Resource PartitioningThe division of environmental resources by coexisting species such that the niche of each species differs by one or more significant factors from the niches of all coexisting species16
6505749866Cryptic Colorationcamouflage, , , makes potential prey difficult to spot against its background is a defensive mechanism.17
6505749867Aposematic ColorationThe bright coloration of animals with effective physical or chemical defenses that acts as a warning to predators (Posion Frogs)18
6505749868Batesian MimicryA type of mimicry in which a harmless species looks like a species that is poisonous or otherwise harmful to predators19
6505749869Mullerian Mimicryevolution of two species both of which are unpalatable and have poisonous stingers or some other defense mechanism to resemble each other, leads into the gain of successive advantage .20
6505749871Endoparasitesparasites that live within the body of their host like roundworms21
6505749872EctoparasitesOrganisms, such as fleas, that live in the exterior of another organism (the host) and obtain food from it.22
6505749874Coevolutionthe process in which species exert selective pressure on each other and gradually evolve new features or behaviors as a result of those pressures23
6505749875Keystone Speciesa species that is critical to the functioning of the ecosystem in which it lives because it affects the survival and abundance of many other species in its community24
6505749876Invasive Speciesplants and animals that have migrated to areas where they did not originate; often displace native species by outcompeting them for resources (exotic species)25
6505749877Ecological Successionseries of changes in the species in a community, often following a disturbance26
6505749878Primary Successionan ecological succession that begins in a an area where no biotic community previously existed27
6505749879Secondary Successionsuccession following a disturbance that destroys a community without destroying the soil. Yellowstone Fire in 1988 for example.28

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