Humans have no way of entering into communication with other species. All that happens is that some human agent argues on behalf of another species on the pretext that she or he knows what serves that species. When we abandon human valuations and logical discourse about them, the 'interests of Nature' therefore become an excuse for some self-appointed elite to overrule human valuations. The protagonists will claim superior knowledge about what is good for nature conservation and then enforce their decisions against the wishes of the majority of people.
Once we abandon human valuations as the sole reference system for human action, we have to ask whose valuations are to replace them