Nature, as personified by the deserted island, is not seen as a separate character in the novel but instead as a pure setting. As a setting, nature does not present much of an obstacles to Crusoe, as the island is fertile, populated by many animals, and contains several stands of edible plants such as wheat and corn. In this fashion, Crusoe is not so much carving his place in the wild out as he is simply taking advantage of the existing benefits.
The main impact of nature is the solitude and its effects on Crusoe. While he spends most of his time working on survival, he does wish for a companion, and barely mentions his animals, which obviously do not provide much companionship. His appreciation of nature comes more from his eventual realization that he has been immensely lucky; without the animal and plant life on the island, his survival would have been far harder.