Population Dynamics

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What is population dynamics?
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Population dynamics is the study of how populations of organisms change over time and space.
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What factors influence population dynamics?
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Factors include birth rates, death rates, immigration, emigration, and carrying capacity.
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How does carrying capacity affect population dynamics?
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Carrying capacity limits the maximum number of individuals an environment can support.
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What is the logistic growth model in population dynamics?
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The logistic growth model describes how a population grows rapidly initially but slows as it approaches carrying capacity.
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What is meant by the term 'population density'?
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Population density refers to the number of individuals living in a unit area or volume.
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How do immigration and emigration affect population numbers?
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Immigration adds to a population, while emigration reduces its size.
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What is exponential growth in population dynamics?
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Exponential growth occurs when the population size increases at a constant rate per unit time.
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What role do predators play in population dynamics?
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Predators can regulate prey populations, potentially preventing them from exceeding the carrying capacity.
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What is demographic transition?
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Demographic transition is the transition from high birth and death rates to lower birth and death rates in a population.
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How do natural disasters impact population dynamics?
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Natural disasters can drastically reduce population size and alter population dynamics.
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What is a population bottleneck?
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A population bottleneck is an event where a population's size is significantly reduced, affecting genetic diversity.
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How can human activities affect population dynamics?
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Humans impact population dynamics through habitat destruction, pollution, and resource depletion.
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What is age structure in population dynamics?
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Age structure refers to the distribution of individuals in a population across different age groups.
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Why is genetic diversity important in populations?
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Genetic diversity increases resilience to environmental changes and disease.
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How does competition influence population dynamics?
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Competition for resources can limit population growth and lead to natural selection.
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