The quote suggests that if one accepts the idea that each species was created separately, it might imply that the flora and fauna on oceanic islands were insufficiently equipped for survival. This assertion highlights a disconnect between the natural world's capabilities and the adaptive success of human action in populating these regions. Nature, it seems, did not provide a thorough range of species suitable for these islands, given how humans have been able to fill that ecological niche more effectively.

This perspective could be seen as a critique of the notion of separate creation, prompting a reflection on the role of humans in shaping ecosystems. The implication is that humans possess an ability to adapt and thrive in diverse environments, potentially surpassing what was originally deemed sufficient by nature. This interplay between human adaptation and natural selection poses intriguing questions about ecological balance and the consequences of human intervention.