Population Dynamics

Author Topic: Population Dynamics  (Read 2182 times)

Offline Masuma Parvin

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Population Dynamics
« on: November 13, 2012, 02:41:20 PM »
Population dynamics is the branch of life sciences that studies short-term and long-term changes in the size and age composition of populations, and the biological and environmental processes influencing those changes. Population dynamics deals with the way populations are affected by birth and death rates, and by immigration and emigration, and studies topics such as ageing populations or population decline.

One common mathematical model for population dynamics is the exponential growth model. With the exponential model, the rate of change of any given population is proportional to the already existing population.
Population dynamics has traditionally been the dominant branch of mathematical biology, which has a history of more than 210 years, although more recently the scope of mathematical biology has greatly expanded. The first principle of population dynamics is widely regarded as the exponential law of Malthus, as modelled by the Malthusian growth model. The early period was dominated by demographic studies such as the work of Benjamin Gompertz and Pierre François Verhulst in the early 19th century, who refined and adjusted the Malthusian demographic model.

A more general model formulation was proposed by F.J. Richards in 1959, further expanded by Simon Hopkins, in which the models of Gompertz, Verhulst and also Ludwig von Bertalanffy are covered as special cases of the general formulation. The Lotka–Volterra predator-prey equations are another famous example. The computer game SimCity and the MMORPG Ultima Online, among others, tried to simulate some of these population dynamics.

In the past 30 years, population dynamics has been complemented by evolutionary game theory, developed first by John Maynard Smith. Under these dynamics, evolutionary biology concepts may take a deterministic mathematical form. Population dynamics overlap with another active area of research in mathematical biology: mathematical epidemiology, the study of infectious disease affecting populations. Various models of viral spread have been proposed and analysed, and provide important results that may be applied to health policy decisions.

Source: Online Resource.

Offline Saba Fatema

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Re: Population Dynamics
« Reply #1 on: December 19, 2013, 01:58:53 PM »
Thanks for sharing.
Saba Fatema
Senior Lecturer
Department of GED
FSIT, DIU

Offline Anuz

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Re: Population Dynamics
« Reply #2 on: November 23, 2015, 05:31:59 PM »
Very interesting and important course for applied mathematics. There are many more things to know related to our lives.
Anuz Kumar Chakrabarty
Assistant Professor
Department of General Educational Development
Faculty of Science and Information Technology
Daffodil International University

Offline smriti.te

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Re: Population Dynamics
« Reply #3 on: December 04, 2016, 01:20:26 AM »
Long post..

Offline 750000045

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Re: Population Dynamics
« Reply #4 on: February 01, 2017, 04:57:27 PM »
thanks to share this informative post

Offline Nizhum

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Re: Population Dynamics
« Reply #5 on: March 21, 2018, 02:30:58 AM »
Informative and useful