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If the numbers of a species begin to decline dramatically, the species becomes known as an "endangered" species. When the numbers decline so far that the species no longer exists, the species is known to be "extinct."

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Q: When numbers of a species begin to decline?
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What is it called when numbers of species begin to decline?

Sexual Frustration.


How can the decline of one population affect another?

The decline of any population will perturb the ecological balance. If the number of one particular species declines, then any species that preys on it will lose some of its food supply and so its population may decline as well. A species in parasitic or symbiotic relationship is also likely to decline. On the other hand, any species which lives in competition - for food or other resources - would face less competition and so its numbers are likely to increase.


When does the human body begin to decline?

The human body begins to decline at an old age or it can decline due to the lack of nutrition.


What did conditions in factories begin to decline?

Factories begin because of the working conditions.


When did the indus begin to decline?

Between 2000b.c.and 1500b.c.


What are the reasons for the decline of black rhino?

Poachers hunting this endangered species has made the number of their population decline.


3 main causes for the decline of the frog species?

Smaller natural habitat, more human encroachment, and less food are the three main causes for the decline of the frog species.


When did the decline in U.S. production of suits and coats begin?

the 1970s


When did the Indus valley begin to decline?

Between 2000b.c.and 1500b.c.


What effects did the Vietnam war have on US immigration numbers?

Immigration numbers did not decline.


What would happen if there was a decrease in number of the coyote population?

For once, it would be a good thing to see a species decline a bit. The adaptable coyote is found now in great numbers where it is not native, and has become a threat to native species and livestock, even children.


What caused Missouri numbers to decline?

black people