Abstract
An aggregation of individuals belonging to the same area is called a population. It constitutes the third principle grade in the organization of the biosphere (after the cell and the organism) and exhibits a definite ecological structure. Characteristic demo-graphical phenomena occur in the population and are determined by the fertility and mortality of individuals, as well as their age distribution and quantitative sex proportion. These phenomena are manifested by changes in the abundance of organisms. The processes of reproduction and mortality are the basic components of the dynamics of the population size and determine its existence. They also must be strictly regulated within the system in order to unify the individuals within the population.
An erratum to this chapter is available at http://dx.doi.org/10.1007/978-94-009-4804-4_3_11
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© 1987 PWN — Polish Scientific Publishers
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Szujecki, A. (1987). Intraspecific relationships of forest insects. In: Ecology Of Forest Insects. Series Entomologica, vol 26. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-4804-4_4
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DOI: https://doi.org/10.1007/978-94-009-4804-4_4
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8630-1
Online ISBN: 978-94-009-4804-4
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