If there was a sudden, significant event in the area (such as a volcanic eruption) then a population with higher biodiversity is more likely to contain at least 1 species which will be adapted enough to survive in the changed environment than an area with lower species diversity.<span />
If the speaker is using the pronoun "I," that means they must be telling the story in the first person. They appear in the story and tell it from their own point of view.
