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A stoat surplus killing chipmunks (Ernest Thompson Seton, 1909) Multiple sheep killed by a cougar. Surplus killing, also known as excessive killing, henhouse syndrome, [1] [2] or overkill, [3] is a common behavior exhibited by predators, in which they kill more prey than they can immediately eat and then they either cache or abandon the remainder.
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.
In mainstream economics, economic surplus, also known as total welfare or total social welfare or Marshallian surplus (after Alfred Marshall), is either of two related quantities: Consumer surplus , or consumers' surplus , is the monetary gain obtained by consumers because they are able to purchase a product for a price that is less than the ...
In economics, an excess supply, economic surplus [1] market surplus or briefly supply is a situation in which the quantity of a good or service supplied is more than the quantity demanded, [2] and the price is above the equilibrium level determined by supply and demand. That is, the quantity of the product that producers wish to sell exceeds ...
Source–sink dynamics is a theoretical model used by ecologists to describe how variation in habitat quality may affect the population growth or decline of organisms.. Since quality is likely to vary among patches of habitat, it is important to consider how a low quality patch might affect a population.
In V. Gordon Childe's scheme the social surplus exists first, and then the ruling class arises to exploit this surplus. This view assumes that there exists a set quantity of stuff that is needed for social reproduction, and that once primary producers make more than this amount, they have produced a social surplus. There does not, however ...
The Federal Surplus Commodities Corporation was one of the so-called alphabet agencies set up in the United States during the 1930s as part of President Franklin D. Roosevelt's New Deal. Created in 1933 as the Federal Surplus Relief Corporation , its name was changed by charter amendment on November 18, 1935.
[1] [2] In economic terminology, a shortage occurs when for some reason (such as government intervention, or decisions by sellers not to raise prices) the price does not rise to reach equilibrium. In this circumstance, buyers want to purchase more at the market price than the quantity of the good or service that is available, and some non-price ...