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topic 5

QuestionAnswer
What is a community? populations of different species living together
What is a habitat? physical place an organism lives
What is an ecological niche? role and position of a species in ecosystem
What is a fundamental niche? potential niche without competitors
What is a realized niche? actual niche occupied
What is competition? (-/-) interaction for limited resources
What is intraspecific competition? between same species
What is interspecific competition? between different species
What is the competitive exclusion principle? no two species can occupy same niche
What is niche partitioning? competing species use different resources
What is predation? (+/-) one kills and eats another
What is cryptic coloration? camouflage
What is Batesian mimicry? harmless species mimics harmful one
What is Mullerian mimicry? two harmful species resemble each other
What is herbivory? (+/-) animal eats plant or algae
What is symbiosis? close relationship between species
What is parasitism? (+/-) one benefits, one harmed
What is mutualism? (+/+) both benefit
What is commensalism? (+/0) one benefits, other unaffected
What is facilitation? (+/+) or (+/0) one species helps another indirectly
What is species diversity? variety of organisms in a community
What is species richness? number of different species
What is relative abundance? proportion each species represents
What increases ecosystem stability? high biodiversity
What reduces ecosystem stability? low biodiversity
What is a trophic structure? feeding relationships among organisms
What is a food web? interconnected food chains
What is a keystone species? species critical to ecosystem structure
What is an invasive species? non-native species disrupting ecosystem
Created by: aayush123654
 

 



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