Population Ecology

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What is Population Ecology?

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Population Ecology is the branch of ecology that studies the dynamics of populations, including their size, density, distribution, and how these factors change over time due to births, deaths, immigration, and emigration.

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What are the two main factors that decrease population size?

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Emigration and Deaths.

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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 without degrading the habitat.

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What are limiting factors in population ecology?

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Limiting factors are environmental conditions that restrict population growth, such as food availability, predation, disease, and habitat space.

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What is the difference between immigration and emigration?

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Immigration is the movement of individuals into a population, while emigration is the movement of individuals out of a population.

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What type of consumer gets only 10% of the energy stored in plants?

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Herbivore.

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What is exponential growth in populations?

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Exponential growth occurs when a population increases by a constant proportion over time, leading to a rapid increase in size when resources are abundant.

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What is a r-strategist?

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R-strategists are species that reproduce quickly and in large numbers, often in unstable environments, but provide little parental care.

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What is a K-strategist?

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K-strategists are species that produce fewer offspring but invest more time and resources in raising them, typically in stable environments.

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What is a food web?

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A food web is a complex network of feeding relationships among various organisms in an ecosystem, showing how energy and nutrients flow through the system.