[Question] (Where) Does animal x-risk fit?

New-ish to the community and trying to resolve the following question—where do existential risks that threaten the future of [insert any non-human species] fit into discussions about prioritisation?

Though it’s rarely presented in this way, I understand most conversations/​conclusions about priority areas to consider:

Humans

  • Immediate causes of human suffering and/​or loss of life

  • Long-term risk to the ongoing existence of human life

Animals

  • Immediate causes of non-human suffering and/​or loss of life

I understand that some long-term risks to the ongoing existence of human life will also impact on non-humans, but suppose that there are some risks that exist only for (some or all) non-humans.

As well as direct answers to my question, I’m wondering if anyone can point me in the direction of further reading/​discussion about this, so I might:

  1. Update my understanding—it’s likely I’ve just missed or misinterpreted some of the discussion about this

  2. Consider the argument for/​against prioritising animal x-risk—I instinctively feel it is odd that this doesn’t figure in most attempts at prioritising cause areas that I have seen. This seems a little incoherent with (1) the focus on longtermism within the EA community and (2) the fairly wide moral circle drawn by EA community