In the view of metaphysical holism, we may argue that our human is also part of the ecological system. And we are closely tied with each other. Even though we have no rights to deal damage to other animals, however, at some special accident, we can deal some damages to other species because it satisfy our vital needs, which is expanding the land or our population is over large.
However, in the view of Deep Ecologist, they may respond that because all species are equal, what we are doing now is harming more species and benefiting a small group of species. Therefore, deforestation seems to be wrong.