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Communism portal. Organized Labour portal. v. t. e. The Age of Enlightenment (also the Age of Reason and the Enlightenment) was the intellectual and philosophical movement that occurred in Europe in the 17th and the 18th centuries. [1] [2] The Enlightenment featured a range of social ideas centered on the value of knowledge learned by way of ...
Fish stocks. Fish stocks are subpopulations of a particular species of fish, for which intrinsic parameters (growth, recruitment, mortality and fishing mortality) are traditionally regarded as the significant factors determining the stock's population dynamics, while extrinsic factors (immigration and emigration) are traditionally ignored.
Biocultural anthropology. Biocultural anthropology can be defined in numerous ways. It is the scientific exploration of the relationships between human biology and culture. [1] ". Instead of looking for the underlying biological roots of human behavior, biocultural anthropology attempts to understand how culture affects our biological ...
Although the rate of growth decreases, population continues to rise. In 2050 still growing by over 45 million per year Map of countries and territories by fertility rate as of 2020 Sustainable population. Many studies have tried to estimate the world's sustainable population for humans, that is, the maximum population the world can host.
A chemostat (from chem ical environment is stat ic) is a bioreactor to which fresh medium is continuously added, while culture liquid containing left over nutrients, metabolic end products and microorganisms is continuously removed at the same rate to keep the culture volume constant. [2] [3] By changing the rate with which medium is added to ...
In biology, a refugium (plural: refugia) is a location which supports an isolated or relict population of a once more widespread species. This isolation ( allopatry) can be due to climatic changes, geography, or human activities such as deforestation and overhunting. Mountain gorilla. Present examples of refugial animal species are the mountain ...
Negative Population Growth is an anti-immigration organization in the United States, founded in 1972. [1] [2] NPG works on overpopulation issues and advocates a gradual reduction in U.S. and world population. NPG believes the optimal population for the United States is 150 to 200 million and that the optimal world population is two to three ...
Vital rates. Vital rates refer to how fast vital statistics change in a population (usually measured per 1000 individuals). There are 2 categories within vital rates: crude rates and refined rates . Crude rates measure vital statistics in a general population (overall change in births and deaths per 1000). Refined rates measure the change in ...