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The book An Essay on the Principle of Population was first published anonymously in 1798, [1] but the author was soon identified as Thomas Robert Malthus.The book warned of future difficulties, on an interpretation of the population increasing in geometric progression (so as to double every 25 years) [2] while food production increased in an arithmetic progression, which would leave a ...
[2] In his 1798 book An Essay on the Principle of Population, Malthus observed that an increase in a nation's food production improved the well-being of the population, but the improvement was temporary because it led to population growth, which in turn restored the original per capita production level.
[1] [2] Malthusianism has been linked to a variety of political and social movements, but almost always refers to advocates of population control. [3] These concepts derive from the political and economic thought of the Reverend Thomas Robert Malthus, as laid out in his 1798 writings, An Essay on the Principle of Population.
The model is named after Thomas Robert Malthus, who wrote An Essay on the Principle of Population (1798), one of the earliest and most influential books on population. [1] Malthusian models have the following form: = where P 0 = P(0) is the initial population size, r = the population growth rate, which Ronald Fisher called the Malthusian ...
Observations Concerning the Increase of Mankind, Peopling of Countries, etc. is a short essay written in 1751 by American polymath Benjamin Franklin. [1] It was circulated by Franklin in manuscript to his circle of friends, but in 1755 it was published as an addendum in a Boston pamphlet on another subject. [2]
Additionally, Wallace claimed that it was the collection of chapters 3–12 of the first volume of An Essay on the Principle of Population that helped him develop his theory. [3] "In these chapters are comprised very detailed accounts from all available sources of the various causes which keep down the population of savage and barbarous nations."
Shadow Children (Book series) - Families are allowed two children maximum, and "shadow children" (third children and beyond) are subject to be killed. 2 B R 0 2 B (Book) - Aging is cured and each new life requires the sacrifice of another in order to maintain a stable population. 2BR02B: To Be or Naught to Be (Movie) - Based on the above book.
Liebig's law has been extended to biological populations (and is commonly used in ecosystem modelling).For example, the growth of an organism such as a plant may be dependent on a number of different factors, such as sunlight or mineral nutrients (e.g., nitrate or phosphate).