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Here populations are allowed to increase above their normal capacity because there is a time lag until negative feedback mechanisms bring the population back down. This effect has been used to explain the widely fluctuating population cycles of lemmings , [ 3 ] forest insects as well as the population cycles of larger mammals such as moose and ...
The numerical response in ecology is the change in predator density as a function of change in prey density. The term numerical response was coined by M. E. Solomon in 1949. [ 1 ] It is associated with the functional response , which is the change in predator's rate of prey consumption with change in prey density.
In ecology, extinction debt is the future extinction of species due to events in the past. The phrases dead clade walking and survival without recovery express the same idea. [1] Extinction debt occurs because of time delays between impacts on a species, such as destruction of habitat, and the species' ultimate
According to a Monday news release from the Department of Ecology, “total state greenhouse gas emissions dipped 13.8% in 2020, falling below the legal limit for that year. Emissions rose 8.8% in ...
In a review of the book published in the International Society for Behavioral Ecology Newsletter, Scott M. Ramsay questioned how novel the idea of time lags and maternal effects were in population ecology, saying that time lags are often included in ecology textbooks and that the maternal effect has been known about since the 1950s. He said ...
The logistic population model, the Lotka–Volterra model of community ecology, life table matrix modeling, the equilibrium model of island biogeography and variations thereof are the basis for ecological population modeling today. [6]
A population that has been growing in the past will have a higher proportion of young people. As it is younger people who have children, there is a time lag between the point at which the fertility rate (mean total number of children each woman has) falls to the replacement level and the point at which the population stops growing. [9]
Scientists define jet lag as the effect on the human body of traveling across different time zones. Our bodies have biological clocks programmed into almost every cell in the body, according to ...