Unit 2: Ecology

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What is Immigration in ecology?

Back

Immigration refers to the movement of individuals into a population from other areas, contributing to population growth.

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What is a pioneer species?

Back

A pioneer species is the first species to colonize previously disrupted or damaged ecosystems, such as moss in barren environments.

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What does Density-dependent factor mean?

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

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What is the energy transfer efficiency in trophic levels?

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Energy transfer between trophic levels is typically about 10%, meaning if there are 1000 Kcal in producers, there will be about 100 Kcal in herbivores.

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What is carrying capacity?

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

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What is Emigration in ecology?

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

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What are Limiting Factors?

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Limiting factors are environmental conditions that restrict the growth, abundance, or distribution of a population.

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What is Exponential Growth?

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Exponential growth occurs when a population increases rapidly in size, typically when resources are abundant.

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What is a trophic level?

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A trophic level is a position in a food chain or food web, representing the flow of energy and nutrients.

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What is a food chain?

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A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.