• HaleEndGrad@lemmygrad.ml
    link
    fedilink
    arrow-up
    16
    ·
    edit-2
    1 year ago

    Fish eating fish doesn’t lead to ecological disturbance. Humans have put multiple species on the verge of extinction.

        • 4ce@lemm.ee
          link
          fedilink
          English
          arrow-up
          2
          ·
          1 year ago

          i read that something like 1/3 of all human caused extinctions are because we keep bringing cats with us

          Do you have a source for that? Intuitively 1/3 of all species extinctions (keep in mind this in general includes plants and other kingdoms of life, not just animals) sounds far too high imo. Maybe you have read that number in a slightly different context, like bird deaths in urban areas, or perhaps in a more specific context similar to the one in your link? Don’t get me wrong, like your link shows, (house) cats can easily have a devastating effect on the local wildlife, in particular birds and small mammals or reptiles (wikipedia has an article on the topic, although I didn’t find anything like your numbers in it). But as far as I know the major ways in which humans have caused extinctions are historically overhunting (mostly affecting large birds and mammals), habitat loss in particular since the advent of agriculture, and more recently of course the effects of the climate crisis since the industrial revolution.

      • cyruseuros@lemmy.ml
        link
        fedilink
        English
        arrow-up
        2
        arrow-down
        2
        ·
        1 year ago

        Hold on, the link you posted says 10 to 100 times more than the natural background extinction rate. That’s very far from "any of the previous mass extinctions in the history of the Earth.

        • 4ce@lemm.ee
          link
          fedilink
          English
          arrow-up
          6
          ·
          edit-2
          1 year ago

          No, it says

          100 to 1,000 times higher than the background extinction rate

          both in the general intro and in the “Extinction rate” section, and

          10 to 100 times higher than in any of the previous mass extinctions in the history of Earth

          in the “Extinction rate” section (both verbatim quotes from its first sentence).

          • cyruseuros@lemmy.ml
            link
            fedilink
            English
            arrow-up
            6
            ·
            edit-2
            1 year ago

            Oh, dropped a digit. Should have just taken that nap I was gunning for. My mistake!