Ecology

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What is ecology?

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Ecology is the branch of biology that studies the interactions between organisms and their environment, including the relationships among organisms and the relationships between organisms and their physical surroundings.

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What is a niche in ecology?

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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.

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What is competition in ecological terms?

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Competition is an interaction between organisms or species in which both are harmed as they vie for limited resources such as food, space, or mates.

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What are density-dependent factors?

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Density-dependent factors are environmental factors whose effects on a population vary with population density, such as competition, predation, and disease.

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What are density-independent factors?

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Density-independent factors are environmental factors that affect populations regardless of their density, such as natural disasters or climate conditions.

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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 sustainably support.

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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 the birth rate?

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The birth rate is the number of live births per 1,000 individuals in a population per year.

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What is the death rate?

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The death rate is the number of deaths per 1,000 individuals in a population per year.