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Shiro TSUYUZAKI
Plant community ecology / Environmental conservation

Mount Usu / Sarobetsu post-mined peatland
From left: Crater basin in 1986 and 2006. Cottongrass / Daylily

(Update on November 26, 2003. Last update on June 1, 2004)

Population

Population (個体群)
  1. In statistics, the universe of items under study is called the population. I will distinguish this concept as the statistical population.
  2. In ecology, a population is a defined group of organisms of one species living in a particular area at a particular time. I will distinguish this concept as the biological population.
  3. From Krebs (1999)

    In sociology, the whole number of people or inhabitants in a country or region is called the population.

Hypothetical population (Ideal population)
Real population

See also, "Population interactions"

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References
  • Krebs CJ. 1999. Ecological methodology (2nd edn.). Benjamin/Cummings, Menlo Park
  • Ecosystem
  • Enviornment

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