经典的鱼类种群动态模型是以稳定的种群行为为基础的。

The classical fish population dynamic models were largely on the basis of stable population behavior assumption.

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值得注意的是，尽管鳞翅目昆虫在栖息地和行为上存在显著差异，但许多种类的鳞翅目昆虫的种群周期相似，在8到11年之间。

Remarkably, despite significant differences in habitat and behavior, many species of lepidoptera have population cycles of similar length, between eight and eleven years.

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如果它们的种群数量，行为，身体状态发生变化，会暗示出更多的问题。

If their population Numbers, behavior, or physical condition change, it can indicate larger problems.

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Finally, behaviorists believed there were no interesting differences across species.

最后，行为主义者认为,生物种群之间并不存在太大的差别。

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