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Human population planning is the practice of managing the growth rate of a human population. The practice, traditionally referred to as population control, ...
Population Balance (formerly World Population Balance) is a 501(c)(3) non-profit organization in the United States that raises awareness of the connections between pronatalism, human supremacy, social inequalities, and ecological overshoot, and advocates for solutions to address their combined impacts on the planet, people, and animals.
Population projections are attempts to show how the human ... but the physical impracticality of shipping vast numbers of people into space to "solve ...
The half-life of a population is the time taken for the population to decline to half its size. We can calculate the half-life of a geometric population using the equation: N t = λ t N 0 by exploiting our knowledge of the fact that the population (N) is half its size (0.5N) after a half-life. [20]
P 0 = P(0) is the initial population size, r = the population growth rate, which Ronald Fisher called the Malthusian parameter of population growth in The Genetical Theory of Natural Selection, [2] and Alfred J. Lotka called the intrinsic rate of increase, [3] [4] t = time. The model can also be written in the form of a differential equation:
A population model is a type of mathematical model that is applied to the study of population dynamics. Rationale. Models allow a better understanding of how complex ...
Matrix population models are a specific type of population model that uses matrix algebra. Population models are used in population ecology to model the dynamics of wildlife or human populations. Matrix algebra, in turn, is simply a form of algebraic shorthand for summarizing a larger number of often repetitious and tedious algebraic computations.
The effective population size (N e) is the size of an idealised population that would experience the same rate of genetic drift as the real population. [1] Idealised populations are those following simple one- locus models that comply with assumptions of the neutral theory of molecular evolution .