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  2. Carrying capacity - Wikipedia

    en.wikipedia.org/wiki/Carrying_capacity

    Carrying capacity is a commonly used concept for biologists when trying to better understand biological populations and the factors which affect them. [1] When addressing biological populations, carrying capacity can be seen as a stable dynamic equilibrium, taking into account extinction and colonization rates. [ 16 ]

  3. Density dependence - Wikipedia

    en.wikipedia.org/wiki/Density_dependence

    There also exists density-independent inhibition, where other factors such as weather or environmental conditions and disturbances may affect a population's carrying capacity. [citation needed] An example of a density-dependent variable is crowding and competition.

  4. Population dynamics - Wikipedia

    en.wikipedia.org/wiki/Population_dynamics

    Thus r is the maximum theoretical rate of increase of a population per individual – that is, the maximum population growth rate. The concept is commonly used in insect population ecology or management to determine how environmental factors affect the rate at which pest populations increase. See also exponential population growth and logistic ...

  5. Allee effect - Wikipedia

    en.wikipedia.org/wiki/Allee_effect

    For example, cooperative hunting and the ability to more easily find mates, both influenced by population density, are component Allee effects, as they influence individual fitness of the population. At low population density, these component Allee effects would add up to produce an overall demographic Allee effect (increased fitness with ...

  6. Competitive Lotka–Volterra equations - Wikipedia

    en.wikipedia.org/wiki/Competitive_Lotka...

    This model can be generalized to any number of species competing against each other. One can think of the populations and growth rates as vectors, α 's as a matrix.Then the equation for any species i becomes = (=) or, if the carrying capacity is pulled into the interaction matrix (this doesn't actually change the equations, only how the interaction matrix is defined), = (=) where N is the ...

  7. Pest insect population dynamics - Wikipedia

    en.wikipedia.org/wiki/Pest_insect_population...

    Logistic growth leveling out at some carrying capacity. Overshoot ("boom" and "bust" cycles). Oscillation at or below the carrying capacity. Insect pest growth rates are heavily influenced by temperature and rainfall, among other variables. Sometimes pest populations grow rapidly and become outbreaks. [5]

  8. Mortgage and refinance rates for Dec. 18, 2024: Average ... - AOL

    www.aol.com/finance/mortgage-and-refinance-rates...

    4 top factors that affect your mortgage rate ... added 227,000 jobs to payrolls in November — significantly higher than economists' expectations and a dramatic increase from October's revised ...

  9. Maximum sustainable yield - Wikipedia

    en.wikipedia.org/wiki/Maximum_sustainable_yield

    At this point, called the maximum sustainable yield, there is a surplus of individuals that can be harvested because growth of the population is at its maximum point due to the large number of reproducing individuals. Above this point, density dependent factors increasingly limit breeding until the population reaches carrying capacity.