Population Ecology REVIEW

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What is population ecology?

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Population ecology is the study of how populations of organisms interact with their environment and how these interactions affect population size, distribution, and dynamics.

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What is a population?

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A population is a group of individuals of the same species that live in a specific area and interact with one another.

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What is carrying capacity?

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Carrying capacity is the maximum number of individuals of a particular species that an environment can support sustainably.

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What is immigration in population ecology?

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Immigration is the movement of individuals into a population from other areas, which can increase the population size.

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What is emigration in population ecology?

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Emigration is the movement of individuals out of a population to other areas, which can decrease the population size.

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What is exponential growth?

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Exponential growth occurs when a population increases by a constant proportion over time, resulting in a rapid increase in size.

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What is logistic growth?

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Logistic growth is a model of population growth that accounts for carrying capacity, where growth slows as the population approaches the environment's limit.

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What role do predators play in population dynamics?

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Predators help control prey populations, preventing them from exceeding their carrying capacity and promoting ecosystem balance.

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What is the difference between density-dependent and density-independent factors?

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Density-dependent factors are influenced by population density (e.g., food availability), while density-independent factors affect populations regardless of density (e.g., natural disasters).

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What is a niche?

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A niche is the role or function of an organism or species within an ecosystem, including its habitat, resource use, and interactions with other organisms.