Climate change is likely to impact more than two-thirds of lagomorph species, with leporids (rabbits, hares, and jackrabbits) likely to undertake poleward shifts with little overall change in range extent, whilst pikas are likely to show extreme shifts to higher altitudes associated with marked range declines, including the likely extinction of Kozlov’s Pika (Ochotona koslowi).
All lagomorphs look the same to Eric. Not only that, but he goes on to write about how a change in environment affected one particular species of rabbit (though he didn't mention it by name). That's the European rabbit (Oryctolagus cuniculus). It didn't cause it to die out, it caused it to rise to plague proportions.