BIS 2B Community Ecology/ Ecosystems Questions and Correct Answers/ Latest Update / Already Graded

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BIS 2B Community Ecology/ Ecosystems
Questions and Correct Answers/ Latest
Update / Already Graded
Competition

Ans: Individuals require the same shared, limiting resource,
reducing growth & survival for both competitors.


Intraspecific competition

Ans: Competition within the same species.


Interspecific competition

Ans: Competition between different species.


Competitive Exclusion Principle

Ans: Two species requiring the exact same limiting resource
cannot coexist; one outcompetes the other.


Fundamental niche

Ans: Where a species could live without competitors.



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Realized niche

Ans: Where a species actually lives with competition.


Resource partitioning

Ans: Species use different parts or different locations of the
resource to coexist.


Examples of resource partitioning

Ans: Warblers feeding at different parts of a tree; Bats using
different habitat zones & prey sizes.


Lotka-Volterra predator-prey model

Ans: Shows how predator & prey abundances cycle over time.


Prey equation (LV model)

Ans: dV/dt = rV - pVP; Growth minus predation.


Predator equation (LV model)

Ans: dP/dt = cpVP - dpP; Births depend on prey; predators die
without prey.


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