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When plotted on a graph a population of field mice over time shows a J shaped curve what does this indicate?
Wiki User
∙ 11y ago
The answer will depend on the time scale covered by the graph and the method used for counting the population. The number of mice foraging when there are babies will depend on the availability of food: if it is easy they will not wish to spend time outdoors, for example.
On a longer time scale it might show that the population fell for some reason. This could be lack of food or of predators that were successful. In the first case, the smaller population in the following period could be supported by local food resources and so the population recovered. The case of over-predation would lead to a scarcity of food for the predator and so their numbers would decline. This would allow the field mice population to recover.
More detailed local knowledge is required before anything can be deduced from the information.
Finally, it could simply be that a local farmer used powerful pesticides and that these killed the predators who ate poisoned field mice! Or the farmer was replaced by one who was less mercenary.
Wiki User
∙ 11y ago
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