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AP Biology Chapter 54 Flashcards

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4908879554communitya group of populations of different species living close enough to interact0
4908882777interspecific interactionsa relationship between individuals of two or more species in a community1
4908892049interspecific competitionwhen individuals of different species compete for a resource2
4908895499competitive exclusionthe elimination of the inferior competitor3
4908898632ecological nichethe sum of a species use of the biotic and abiotic resources in its environment4
4908902266resource partitioningthe differentiation of niches that enables similar species to coexist5
4908908092character displacementcharacteristics to diverge in the same two species6
4908912762predationkills7
4908912763cryptic colorationcamo8
4908914328aposematic colorationwarning colors9
4908915722batesian mimicrya harmless species imitates a harmful one10
4908917420mullerian mimicrytwo harmful species resemble each others11
4908919764symbiosiswhen 2+ species live in a direct an intimate contact with one another12
4908924077species diversitythe variety of different kinds of organisms13
4908930857species richnessthe number of different species in the community14
4908932374relative abundancethe proportion of each species represents of all individuals in the community15
4908936490shannon diversityan index of diversity based on species richness and relative abundance16
4908939829trophic structurethe structure and dynamics of a community depend on feeding relationships17
4908943797food chaintransfer of food energy up the trophic levels18
4908968411food webslinked food chains19
4908969825energetic hypothesisexplains why food chains are short. energy transfer is very short20
4908972703dynamic stability hypothesisexplains why food chains are short. long food chains are unstable21
4908975083dominant speciesspecies that are the most abundant22
4908978502facilitatorsthey alter the structure or dynamics of the environment23
4908981580top-down modelthe higher trophic levels influence the lower ones24
4908984915bottom-up modellower trophic levels influence the higher ones25
4908990165nonequilibrium modeldescribes most communities as constantly changing after being affected by disturbances26
4908993350immediate disturbance hypothesismoderate levels of disturbance can make greater species diversity27
4908996786ecological successiona disturbed area that's colonized by species, and gets colonized again28
4909002259primary successionlife starts on barren land29
4909003871secondary successionwhen an existing community has been cleared30
4909007677evapotranspirationthe evaporation of water from soil plus the transpiration of water from plants31
4909009406species-area curvea plot with # of species in an area32
4909012532pathogensdisease causing organisms33
4909014995zoonotic pathogenstransferred from animals to humans34
4909017503vectorspreads disease35

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