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Population Ecology definitions Flashcards

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Population Ecology definitions
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  • Population


    A group of individuals of the same species living in a specific area, interacting and interbreeding, with dynamics influenced by births, deaths, immigration, and emigration.

  • Abundance


    The number of individuals of a species in a given area, reflecting population size and density, crucial for understanding ecosystem dynamics and resource allocation.

  • Distribution


    The spatial arrangement of individuals within a population, influenced by factors like resource availability, social interactions, and environmental conditions.

  • Population Density


    The number of individuals of a species per unit area or volume, indicating how crowded a population is within its habitat.

  • Range


    The geographic area where a species is found, influenced by biotic and abiotic factors such as climate, food availability, and physical barriers.

  • Abiotic factors


    Non-living environmental components like climate, water, soil, and physical barriers that influence the distribution and abundance of organisms in an ecosystem.

  • Population Dynamics


    Study of how population size, age structure, and distribution change over time due to births, deaths, immigration, and emigration, influenced by biotic and abiotic factors.

  • Dispersion


    The spatial arrangement of individuals within a population, influenced by factors like resource availability, social interactions, and competition, resulting in patterns such as random, clumped, or uniform.

  • Demography


    The statistical study of populations, focusing on size, structure, distribution, and changes over time due to births, deaths, immigration, and emigration.

  • Generation


    The average time between a mother's first offspring and her daughter's first offspring, indicating the turnover rate of generations in a population.

  • Life Table


    A statistical tool that summarizes the survival and reproductive rates of individuals in a population, often segmented by age, to predict life expectancy and mortality rates.