AP Biology Chapter 54 Flashcards

4908879554	community	a group of populations of different species living close enough to interact	0
4908882777	interspecific interactions	a relationship between individuals of two or more species in a community	1
4908892049	interspecific competition	when individuals of different species compete for a resource	2
4908895499	competitive exclusion	the elimination of the inferior competitor	3
4908898632	ecological niche	the sum of a species use of the biotic and abiotic resources in its environment	4
4908902266	resource partitioning	the differentiation of niches that enables similar species to coexist	5
4908908092	character displacement	characteristics to diverge in the same two species	6
4908912762	predation	kills	7
4908912763	cryptic coloration	camo	8
4908914328	aposematic coloration	warning colors	9
4908915722	batesian mimicry	a harmless species imitates a harmful one	10
4908917420	mullerian mimicry	two harmful species resemble each others	11
4908919764	symbiosis	when 2+ species live in a direct an intimate contact with one another	12
4908924077	species diversity	the variety of different kinds of organisms	13
4908930857	species richness	the number of different species in the community	14
4908932374	relative abundance	the proportion of each species represents of all individuals in the community	15
4908936490	shannon diversity	an index of diversity based on species richness and relative abundance	16
4908939829	trophic structure	the structure and dynamics of a community depend on feeding relationships	17
4908943797	food chain	transfer of food energy up the trophic levels	18
4908968411	food webs	linked food chains	19
4908969825	energetic hypothesis	explains why food chains are short. energy transfer is very short	20
4908972703	dynamic stability hypothesis	explains why food chains are short. long food chains are unstable	21
4908975083	dominant species	species that are the most abundant	22
4908978502	facilitators	they alter the structure or dynamics of the environment	23
4908981580	top-down model	the higher trophic levels influence the lower ones	24
4908984915	bottom-up model	lower trophic levels influence the higher ones	25
4908990165	nonequilibrium model	describes most communities as constantly changing after being affected by disturbances	26
4908993350	immediate disturbance hypothesis	moderate levels of disturbance can make greater species diversity	27
4908996786	ecological succession	a disturbed area that's colonized by species, and gets colonized again	28
4909002259	primary succession	life starts on barren land	29
4909003871	secondary succession	when an existing community has been cleared	30
4909007677	evapotranspiration	the evaporation of water from soil plus the transpiration of water from plants	31
4909009406	species-area curve	a plot with # of species in an area	32
4909012532	pathogens	disease causing organisms	33
4909014995	zoonotic pathogens	transferred from animals to humans	34
4909017503	vector	spreads disease	35