I'm currently trying to describe a few species traits and group them. Here I found that I'm at a loss of correct words for the groupings. After searching a bit I found a good fitting with "beneficial traits" for traits that are enhancing specific races like extra sharp teeth, or the ability to fly.
But on the "other" side I have found no wordings that sounded fitting for negative species traits like a vulnerability to cold (as many snakes have).
So my question here is is there any such word for negative species traits?