Birth surplus
Birth surplus is a term used in demography to describe a condition in which more people are born than die in a given area in a given time. The Duden defines a birth surplus as “the predominance of births over deaths”.
The natural population development , i.e. the difference between births and deaths, is positive in such a case. If a surplus of births is not offset by a higher negative balance of migration (a negative net migration or a loss of migration), there will be an increase in population.
If the natural population development is negative, one speaks of a death surplus or a birth deficit .
In Germany, there was a birth surplus only in the federal states of Berlin and Hamburg in 2014. In Saarland and Saxony-Anhalt only 53 and 54 percent of births replaced deaths. The last time there was a nationwide birth surplus was in 1971.
When quoting Darwin's theory of evolution with mutation and selection in key words, the fact that a surplus of births is a third elementary prerequisite for evolution is suppressed, because without a surplus of births the species dies out.
Web links
- Definition onwirtschaftslexikon.gabler.de; accessed on September 16, 2015
- Norbert Kluge: Germany between excess birth rates and population decline. Hope for further immigration gains . (PDF) Retrieved September 9, 2015
Individual evidence
- ↑ birth surplus . In: Duden . Bibliographical Institute / Dudenverlag . Retrieved September 21, 2015.
- ↑ Surplus births only in large cities . t-online.de, April 29, 2015; accessed on September 16, 2015
- ↑ More children, fewer deaths. In: Südwest Presse Online. August 22, 2015, accessed on September 17, 2015 (with reference to a communication from the Federal Statistical Office ).