因此，较小的动物可以生活在食物较少的地方，只要这些食物的能量含量较高。

Smaller animals can therefore live where there is less food, provided that such food is of high energy content.

youdao

此外，岛屿栖息地的食物资源有限，因此体型较小，对资源的需求较少将受到青睐。

Moreover, island habitats have limited food resources, a smaller body size and a need for fewer resources would thus be favored.

youdao

集群的维护成本很低(它们占用的空间较小，耗费的电力较少，对于制冷条件的需求较低)。

Clusters have a much lower maintenance cost (they take up less space, take less power, and need less cooling).

youdao