chapter 14 community ecology review – Flashcards
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Competition is most intense between closeky relate that..
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use the same resourse
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pioneer species are....
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the first organisms thar live ina previously unhabitated area
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one difference between predators and parasites are...
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are when one organism benifits while the other is harmed
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a symbiotic relationship in which one species benefits and the other is not affected is called....
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commensalisns
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the plants that grow first on an island formed by volcano are part of a progression called...
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primary sucession
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sucession is...
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the sequence of biotic changes that regenerate a damaged community or create a community in a previously unhabitated area
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which of the following types of sucession would most likely occur following a forest fire?
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secondary sucession
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when an orginism dies the nutriets in its bod...
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the action o decomposers
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a relationship between a producer and a consumer is best illustrared by...
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zeba > grass
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the primary producers in a glassland ecosystem would most likely be..
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grasses
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they can survive at the same time in the rice paddy becausethey occupy...
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the same habitat but different niches
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5 species of simular warblers coexisted on the spruce trees because they...
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foriged in diferent plaaced on the tree and showed resourdse particuting
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interaction between two species in which one feeds on the other is...
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predation
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interaction between two species as both attempts to use the same limited environmental resourse is...
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competition
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a form of symbiosis in which one participant benfits and the other apperently is not benefitted or is harmed is...
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commensial
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which statement is NOT true about parasitism?
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answer: inaxicent ussually kills its host
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a form of symbosis in which one participant benefits and the other is harmed is...
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parasitism
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a form of symbiosis in which both participant benifit is...
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mutualism
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symbiotic relationshi[s include all of the folowing execpt?
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comitentim for mates
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plant prey defenses include which of the following/
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all of the above
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ecology is best defined as the study of..
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the relationship beteen all living organism and their enviroment
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local elimination of one competing species
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competive excusion
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when simular species coexist, each species use onlu part of the available resourses
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partitoning
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when succession occors on land where nothing has grown before
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primary succession
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the most stable stage of sucession
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climax community
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replacement of species that follows the disruptionof an existing community
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secondary sucession
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the location where a organism is best described as the organisms
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habitat
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when we study the full assortment of organisms in an area as well as the abiotic environment that affects them, we are studying the
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ecosystem
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the sumber of individuals per unit area or volume is the
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population density
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the pattern of dispersal of individuals within anarea is the
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populationdispersion
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when the number of births exceeds the number of deaths this results in
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population growth
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when the number of births equal the number of deaths this results in
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no growth
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biologicak growth rate would be negitive when
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death rate greater than birth rate
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population size is belived to level off and stabilize at the __ of an enviroment represented as K.
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carrying capacity
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the carrying capacity of the enviroment fora species is determined by
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limiting factor
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as the carrying capacity of an enviroment is reachedby a population
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deaths begin toacctive birth
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what form of interationis taking place when a shark devours a seal?
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predation
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when lions and hyenas fight over a dead zebra. their interaction is called
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compettion
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all the ways in which a jaguar intersects with its enviroment constitue its
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niche
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the principle of competitive exclusion states that if two species are competing the species that uses the resourse more efficently will eventually
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elimate the other species localy
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a community includes all the species in one area
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T
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cutting down trees in a forrest alters the habitat of the organisms living in the forest
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T
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when sucession takes place in a area where there has been previous growth it is called secondary succession
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F
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the first organism to live in a new habitat are large, skow-growing plants
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F
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a # of populations of diferent species interacting with one another is called
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community
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all of the conditions under which an organism could conceivably srvive and reproduce constitute its
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fundamental niche
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the actual conditions where an organism actually exist in nature constitute its
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realize niche
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which term decribes tje concept that no twp s[ecie can have the same "job" in the communuty at the same time?
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competitive exclusion
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which term describes the "occupation of an organism ithin the community?
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niche
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special case of predation where organism feeds on another
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paritatism
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what the parasite feeds on
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host
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the range of resourses a species accually uses
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realized niche
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one organism feeds on another
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predation
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two species use the same limited resourse
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competion
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two or more species live in a close long-term asociation
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sybiosis
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one species benfits and the other is neither harmed or helped
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commensalism
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both participation speciece benofit
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mutlialism
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the entire range of conditions a species can tolerate
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fundamental niche
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what is the 3 types of disperation?
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clumped,uniform,random
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what is density-dependent limiting factor?
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are limiting factors that are affected by the # of indivuals in a given area
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example od density-depndent.....
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predation
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what is density-independent limiting factor?
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are the aspects of the enviroment that limit a populations growth regardless of the density
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example of density-independent limiting factoe
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human activities
