Population growth models, competition, predation, community structure, succession, trophic levels and conservation biology.
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- What does the exponential growth model assume about population growth?
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Unlimited resources and no environmental resistance- The logistic growth model introduces what constraint that exponential growth lacks?
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Carrying capacity- In the logistic equation, what does K represent?
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Carrying capacity- Define intrinsic rate of increase, r.
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The maximum per capita growth rate when resources are unlimited- What happens to population growth rate when population size N equals carrying capacity K?
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Growth rate becomes zero- Competition for the same resource between two different species is called what?
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Interspecific competition- Define intraspecific competition.
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Competition for resources among individuals of the same species- The competitive exclusion principle states what?
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Two species competing for the same limited resource cannot coexist- What is a predator-prey relationship?
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An interaction in which one organism hunts and eats another- Why do predator populations typically lag behind prey population peaks?
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There is a time delay before predators increase in response to prey abundance- Define niche.
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The specific role and position a species occupies in its environment- What is habitat?
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The physical place or environment where an organism lives- Define density-dependent limiting factor.
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A factor whose effect increases as population density increases- What are density-independent limiting factors?
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Limiting factors that affect population size regardless of population density- Give an example of a density-independent limiting factor.
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Weather, natural disasters, floods, droughts, or volcanic eruptions
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