BS 110 Quiz 5b
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- What are some factors that limit population growth?
- resource availability, predation, disease, human activity, climate/weather, and catastrophic events
- What determines the maximum size of a population?
- carrying capacity
- What does carrying capacity mean and is it variable?
- The maximum population size sustainable over time and yes its variable
- In exponential growth, what happens to the population growth rate as the population size increases?
- It stays the same no mater what
- What are the three assumptions of exponential growth?
- unlimited resources, rate does not change over time, and growth is density independent
- When can exponential growth occur in nature?
- When colonization of a new habitat happens, recovery after a disaster, a pulse of new nutrients, and introduced species
- Does population grow slower or faster as it reaches its carrying capacity?
- slower
- Exponential can or cannot be sustained for long in any population?
- cannot
- In logistic growth, what happens to the population growth rate when the population size approaches carrying capacity?
- It slows down and approaches zero
- What are the focus of community ecology?
- interspecific interactions
- What does interspecific mean?
- between species
- What happens during commensalism relationships?
- One specie benefits while the other is unaffected
- Are traits similar or more different when species occur together?
- more different
- The total of a species\' use of biotic and abiotic resources is called what?
- an ecological niche
- What is a fundamental niche?
- the entire niche that a specie is capable of using based on physiological tolerance limits and resource needs
- What is a realized niche?
- Actual set of environmental conditions in which the species can establish a stable population
- Can two species occupy the same realized niche? What does this lead to?
- no never, competition