Two species of spiny mice compete for the same food source. One species of spiny mice feeds on insects during the day, while a second species of spiny mice feeds on the same insects at night. This allows both species to survive on the same source of food. This is an example of:.

resource partitioning

Explanation:

Based on the scenario being described within the question it can be said that this is an example of resource partitioning. This term refers to when a species divides the limited resources in order to avoid competition within it's environment. Such as the two species of mice are doing by feeding in on the same resources at different times in order to avoid competition and conflict between each other. Thus allowing them to co-exist within the same environment.

littering streams           is the answer