We are talking about some kilometers per year. Large animals can walk such distances in one day, for sure, but I see the risk of changing ecosystems and extreme weather, the animals are not adapted to.brimstoneSalad wrote: ↑Fri May 29, 2020 10:24 pmThey don't have to be, these larger animals are intelligent and can adapt within their lifetimes quite a bit. How much do you think these zones are moving?
Let's take a moose living 20 years -- how many miles are we talking?
It doesn't have to be, but these animals also carry these plants with them as their habitats move, whether in feces or on fur.
I don't think they have to. You should be able to move a while tailed deer from North America to China or Australia or Argentina. Very few animals are highly dependent on one single food source like bamboo.
I think you're overestimating those dependencies, particularly for the large long-lived animals we're talking about. Smaller species can go extinct without significant harm to individuals.
Mostly insects and flowering plants that depend on them for pollination I would imagine, and even those cases are likely overstated. What kind of animal suffering does that really involve?
I granted that already, but I'm not sure how significant that's going to be.
As life in the wild is pretty harsh anyway I am not sure either, what impact this will have regarding overall animal suffering. However, I suspect that it will add suffering by simply destroying ecosystems, shifting and proliferating e. g. forest fires and bush fires and extreme heat stress. There might be less stress from cold, but the species are adapted to traditional cold, which still causes suffering, because natural selection is not selecting for welfare, but reproductive success. This leads me to my conclusion. The change of the ecosystem leads to selective pressure. Selective pressure means more death. Therefore, I would suspect, that there is more animal suffering in a changing climate, than in a stable one. But this is a fairly general conclusion.
The article I had linked lists some measures to make the transition easier, helping to adapt, for example artificial relocation and minimizing barriers.
Edit: I add an interesting article about adaptation research on mammals and lions in Southafrica: https://www.carbonbrief.org/lions-could ... study-says