• PapaStevesy@lemmy.world
    link
    fedilink
    English
    arrow-up
    4
    ·
    4 hours ago

    Ultimately it’s more about trapping and consuming live animals, I don’t really care if they actually chew.

    • Ledericas@lemm.ee
      link
      fedilink
      English
      arrow-up
      1
      ·
      4 hours ago

      there are trees armed to the teeth or extremely poisonous, many in euphorbiacae family. dynamite tree, machineel

      • Eagle0110@lemmy.world
        link
        fedilink
        English
        arrow-up
        2
        ·
        3 hours ago

        Well there’s a fundamental difference between a carnivorous plant and a murderous plant who just kills.

        There are many plants who kill large number of animals all the time, as defense measures for example. But a carnivorous plant specifically kills the prey in order extract nutrients from it and use it to benefit itself, and it does so using specialized adaptations specific for that purpose and not just accidentally (like a broken tree branch falling down killing somebody down below doesn’t make the tree carnivorous)

        So a carnivorous plant needs to have ALL of these traits:

        1. capturing or trapping prey in specialized, usually attractive, traps;
        2. killing the captured prey;
        3. digesting the prey;
        4. absorption of metabolites (nutrients) from the killed and digested prey;
        5. use of these metabolites for plant growth and development.

        …in order to be considered a carnivorous plant.

        Source: Carnivorous Plants: Physiology, Ecology, and Evolution from Oxford University Press

        (HIGHLY recommend if you’re interested in this topic, it’s an extremely good book and the best comprehensive overview on carnivorous plants at the moment, with fairly up to date information from this rapidly developing field of study!

      • PapaStevesy@lemmy.world
        link
        fedilink
        English
        arrow-up
        1
        ·
        4 hours ago

        Armed to the teeth or armed with teeth…that they chew live animals with? Because I’m only interested in the latter.

  • xia@lemmy.sdf.org
    link
    fedilink
    English
    arrow-up
    8
    ·
    10 hours ago

    I remember watching this farmer make a case otherwise, that ordinary bramble (?) is specialized to ensnare and trap fluffy sheep, providing chemical nutrients to the bush.

    • Redfox8@mander.xyz
      link
      fedilink
      English
      arrow-up
      2
      ·
      3 hours ago

      There’s tonnes of blackthorn and a lot of sheep in the UK and I’ve never heard it to be problematic. Sheep ate pretty dim, but bramble is definitely not thorny/spiney enough to get caught bar the odd occasion. I’m sure I heard about a shrub (African maybe) that sheep can get completely ensnared in and die, but can’t find it!

  • shalafi@lemmy.world
    link
    fedilink
    English
    arrow-up
    50
    arrow-down
    1
    ·
    16 hours ago

    Because the flowers attract food in the form of insects. I must be missing something here.

    • drolex@sopuli.xyz
      link
      fedilink
      English
      arrow-up
      34
      ·
      15 hours ago

      Carnivorous plants need to attract insects to feed AND to reproduce. Of course they don’t want to eat the pollinators so they usually have flowers with long stems

      • shalafi@lemmy.world
        link
        fedilink
        English
        arrow-up
        4
        ·
        7 hours ago

        Yep! The pitcher plants around here have high flowers and Venus Fly Traps have hilariously high flowers.

        • Ledericas@lemm.ee
          link
          fedilink
          English
          arrow-up
          1
          ·
          4 hours ago

          sundews too, and sarrencenia, aquatic plants. also we found out some pitchers attract mammals for thier nutrient rich poop"poop in thier pitchers" to get all that nitrogen.

  • PanaX@lemmy.world
    link
    fedilink
    English
    arrow-up
    18
    ·
    13 hours ago

    While all of these answers are mostly true, you have to go back in time. Darwin called it the abomniable mystery. Flowering plants and insects co-evolved rapidly roughly 150 MYA. So prior to flowering plants, there were few plants and insects and they were mostly generalists. The rapid expansion and explosion of insect diversity is deeply entangled with the explosion of diversity in angiosperms.

    • Ledericas@lemm.ee
      link
      fedilink
      English
      arrow-up
      2
      ·
      4 hours ago

      the oldest pollinators, prior to bees,butterflies and other insects. were beetles, as evidence of magnolias one of the oldest lineage of flowers, use only beetles.

  • Baaahb@feddit.nl
    link
    fedilink
    English
    arrow-up
    45
    ·
    16 hours ago

    Flowering plants use life to spread genetics. No reason to be carnivorous if there’s no reason for animals to crawl all over you

  • Derpenheim@lemmy.zip
    link
    fedilink
    English
    arrow-up
    17
    ·
    14 hours ago

    Carnivory in plants is ALWAYS the secondary option, usually as a result of poor soil quality. Typical pollination via flowering bodies is the go to.

  • Redfox8@mander.xyz
    link
    fedilink
    English
    arrow-up
    9
    ·
    14 hours ago

    Because they live in environments lacking in the nutrients that can be gained from invertebrates (e.g. in highly acidic soil). This allows them to compete better against other plants. I guess non-flowering plants don’t need the same nutrients so can go without. Only a beginnner+ at ecological botany so someone here can surely explain better knowing lemmy!