Natural increase

(noun)

Population growth that depends on the fertility rate and the mortality rate.

Related Terms

Examples of Natural increase in the following topics:

  • Three Demographic Variables

    • The basics of demographic population growth depend on the rate of natural increase (births versus deaths) and net migration.
    • The United States illustrates how the rate of natural increase and net migration combine to create population change—the fertility rate in the U.S. is at almost exactly replacement level, but migration into the country is high enough to lead to population growth.
    • Human population growth depends on the rate of natural increase, or the fertility rate minus the mortality rate, and net migration.
    • As this equation shows, population change depends on three variables: (1) the natural increase changes seen in birth rates, (2) the natural decrease changes seen in death rates, and (3) the changes seen in migration.
    • Natural increase refers to the increase in population not due to migration, and it can be calculated with the fertility rate and the mortality rate.

  • Natural Monopolies

    • Along with this, the average cost of production decreases and then increases.
    • In contrast, a natural monopoly will have a marginal cost that is constant or declining, and an average total cost that drops as the quantity of output increases.
    • As it gains market share and increases its output, the fixed cost is divided among a larger number of customers.
    • Therefore, in industries with large initial investment requirements, average total costs decline as output increases.
    • Examples of natural monopolies are water and electricity services.

  • Basic Economics of Natural Resources

    • Natural resource economics focuses on the supply, demand, and allocation of the Earth's natural resources to create a more efficient economy.
    • Natural resource economics focuses on the supply, demand, and allocation of the Earth's natural resources.
    • The main objective of natural resource economics is to gain a better understanding of the role of natural resources in the economy.
    • The extraction of natural resources substantially increases a country's wealth.
    • Natural resource economics focuses on the demand, supply, and allocation of natural resources to increase sustainability.

  • Natural Selection and Adaptive Evolution

    • Natural selection drives adaptive evolution by selecting for and increasing the occurrence of beneficial traits in a population.
    • Natural selection only acts on the population's heritable traits: selecting for beneficial alleles and, thus, increasing their frequency in the population, while selecting against deleterious alleles and, thereby, decreasing their frequency.
    • Natural selection does not act on individual alleles, however, but on entire organisms.
    • As natural selection influences the allele frequencies in a population, individuals can either become more or less genetically similar and the phenotypes displayed can become more similar or more disparate.
    • Through natural selection, a population of finches evolved into three separate species by adapting to several difference selection pressures.

  • Efficient buildings increase profits

    • Following is a list of documented improvements obtained after natural light (derived from windows or tubular skylight systems) was introduced into workplaces: (Edwards, L., and Torcellini, P., ‘A Literature Review of the Effects of Light on Building Occupants')
    • An increase in patient recovery rates and reduced hospital staff stress,
    • Students enjoy increased health benefits and, strangely enough, fewer dental cavities.
    • The Canada Green Business Council drew similar conclusions when it discovered that the introduction of natural daylight raised productivity 13% in Canadian businesses, increased retail sales by up to 40%, and helped improve school test scores by as much as 5%.
    • Improved ventilation added to these enhancements by increasing productivity an additional 17% and decreasing sickness by up to 50%.

  • Types of Natural Resources

    • Natural resource economics focuses on the supply, demand, and allocation of the Earth's natural resources.
    • Natural resource economics focuses on the supply, demand, and allocation of the Earth's natural resources.
    • Non-renewable natural resources: these resources form extremely slow and do not naturally form in the environment.
    • The discussions are centered around the issues of increased scarcity (resource depletion) and the exportation of natural resources as a basis for many economies (especially developed nations).
    • Analyze natural resource economics and explain the types of natural resources that exist.

  • Work environments and people

    • The increase in productivity alone paid for the new building in less than one year.
    • At PST, the introduction of natural light was so successful it reduced worker compensation cases by 90%.
    • The Diagnostics Products Corporation in Flanders, New Jersey, saw employee productivity increase 19% after the installation of an efficient climate control system and the addition of skylights that ‘let in lots of (free) natural light'.
    • (‘Natural Light Facility Boosts Productivity 19% at DPC', Manufacturing News)
    • (NRDC, ‘Building Green: Increase Employee Satisfaction and Productivity')

  • Is Economic Growth a Good Goal?

    • Jevon's Paradox:Interestingly, increases in efficiency which drive increased economic growth often result in higher consumption.
    • Increased productivity within a system is only useful if it translates to an increase in per capita wealth.
    • It is also reasonable to consider the finite nature of natural resources (see ).
    • This figure demonstrates the risk of over-consuming our natural resources, ultimately resulting in scarcity of necessary goods.
    • A continued drive for economic growth could lead to overconsumption of natural resources.

  • No Perfect Organism

    • However, natural selection cannot produce the perfect organism.
    • Natural selection is also limited because it acts on the phenotypes of individuals, not alleles.
    • When a neutral allele is linked to beneficial allele, consequently meaning that it has a selective advantage, the allele frequency can increase in the population through genetic hitchhiking (also called genetic draft).
    • One morph may confer a higher fitness than another, but may not increase in frequency because the intermediate morph is detrimental.
    • As a result, the frequency of a dark-colored mice would not increase because the intermediate morphs are less fit than either light-colored or dark-colored mice.

  • Natural Logarithms

    • The natural logarithm is the logarithm with base equal to e.
    • The natural logarithm can be written as $\log_e x$ but is usually written as $\ln x$.
    • Just as the exponential function with base $e$ arises naturally in many calculus contexts, the natural logarithm, which is the inverse function of the exponential with base $e$, also arises in naturally in many contexts.
    • The function slowly grows to positive infinity as $x$ increases and rapidly goes to negative infinity as $x$ approaches $0$ ("slowly" and "rapidly" as compared to any power law of $x$).
    • The first step is to take the natural logarithm of both sides: