托福口语 Task 4

Today, we're going to talk about a fascinating concept in animal behavior called 'temporal partitioning.' This refers to the strategy where different species share the same habitat but reduce competition by using it at different times of the day or night. The main point is that time can be a resource, just like food or space. Let me give you two examples. First, consider the African savanna. Lions and leopards both hunt similar prey, but lions are mostly active during the day, while leopards are nocturnal. By hunting at different times, they avoid direct competition for the same prey. Second, look at coral reefs. Some species of parrotfish feed on algae during the day, while others, like the squirrelfish, are active at night, feeding on small invertebrates. This temporal separation allows both to thrive in the same reef area without exhausting their shared resources. So, you see, temporal partitioning is a key mechanism that promotes biodiversity by allowing species to coexist.