Because the flowers attract food in the form of insects. I must be missing something here.
Carnivory in Plants
Submitted 1 month ago by fossilesque@mander.xyz to science_memes@mander.xyz
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Comments
shalafi@lemmy.world 1 month ago
drolex@sopuli.xyz 1 month 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 1 month ago
Yep! The pitcher plants around here have high flowers and Venus Fly Traps have hilariously high flowers.
DragonTypeWyvern@midwest.social 1 month ago
Pitcher plants use sugary secretions to attract prey not flowers
zedgeist@lemmy.world 1 month ago
Why would they want to attract flowers?
shalafi@lemmy.world 1 month ago
Both use flowers with long stems to keep the pollinators out of harm’s way. I grow both, seen it IRL.
Baaahb@feddit.nl 1 month 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
TimewornTraveler@lemm.ee 1 month ago
I’m sorry but who says that all of the good botany questions have been answered??
FooBarrington@lemmy.world 1 month ago
Dwayne “The Rock” Johnson
drolex@sopuli.xyz 1 month ago
He’s a disgrace. Still classifying Rhinantus minor in the Scrophulariaceae instead of Orobanchaceae after APGIII. Smh.
PapaStevesy@lemmy.world 1 month ago
We just haven’t found the carnivorous trees yet. Those poor, poor squirrels…
Ledericas@lemm.ee 1 month ago
there are trees armed to the teeth or extremely poisonous, many in euphorbiacae family. dynamite tree, machineel
Eagle0110@lemmy.world 1 month 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:
- capturing or trapping prey in specialized, usually attractive, traps;
- killing the captured prey;
- digesting the prey;
- absorption of metabolites (nutrients) from the killed and digested prey;
- 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 1 month ago
Armed to the teeth or armed with teeth…that they chew live animals with? Because I’m only interested in the latter.
PanaX@lemmy.world 1 month 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 1 month 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.
Zerush@lemmy.ml 1 month ago
Kolanaki@pawb.social 1 month ago
Audrey II was a literal alien. It might not even technically be a plant, it just resembles one. 🤷🏻♂️
ouRKaoS@lemmy.today 1 month ago
Ok, so prove all the other plants aren’t aliens?
Zerush@lemmy.ml 1 month ago
A human has 46 chromosomes, a potato 48, this also explains some things.
rizzothesmall@sh.itjust.works 1 month ago
Flowers already attracted insects. The evolution of flower into carnivorous flower is a smaller leap than a tuba or leaf into carnivory as they would also have to evolve to attract the prey.
Derpenheim@lemmy.zip 1 month 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.
squaresinger@lemmy.world 1 month ago
Is it vegan if you eat carnivorous plants?
Zoomboingding@lemmy.world 1 month ago
Vegan enough for package labelling, not vegan enough for the psychic powers
Nasan@sopuli.xyz 1 month ago
You get three strikes though, I think that’s pretty lenient
xia@lemmy.sdf.org 1 month 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.
Zagorath@aussie.zone 1 month ago
An interesting theory, but there are good reasons to doubt the claim, including the fact that woolly sheep are a recent product of human breeding, and that wild sheep are not even native to the same areas blackberries grow.
Redfox8@mander.xyz 1 month 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!
Redfox8@mander.xyz 1 month 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!
henfredemars@infosec.pub 1 month ago
Could it be because most plants are flowering plants?
zagaberoo@beehaw.org 1 month ago
Sex is a hell of a drug when it comes to diversity.
ZILtoid1991@lemmy.world 1 month ago
Where are my plants that impregnate human females through their vines used as tentacles, as promised by hentai?
whimsy@lemmy.zip 1 month ago
Since when has carnivory been a word, what the hell
princessnorah@lemmy.blahaj.zone 1 month ago
Since as long as carnivore has been a word, probably. Carnivory is the noun for the act of eating meat, carnivore is the noun for a creature that eats meat and carnivorous is the adjective to describe a creature that eats meat.
nanoswarm9k@lemmus.org 1 month ago
probably used casually in a kink. would you like a map of the internet? (earnest)
ZWQbpkzl@hexbear.net 1 month ago
This seems obvious: Non flowering plants haven’t evolved ways to attract
pollinatorsprey. What non-flowering plants deliberately attract animals?Ledericas@lemm.ee 1 month ago
i think because non-flowering plants, like ferns, gymnosperms, bryophytes dont need to attract animals. thier sperm, eggs are usually close by to each other so no need animals. and gymnosperm uses wind pollination. carnivory is probably repurposed flower-attracted pollination.
PapaStevesy@lemmy.world 1 month ago
Ultimately it’s more about trapping and consuming live animals, I don’t really care if they actually chew.
BodyBySisyphus@hexbear.net 1 month ago
If you go out in a bog and look around, most of the plants there are angiosperms. The non-angiosperms are mainly mosses (capable of surviving on atmospheric deposition, not really producing the sorts of complex structures that can be adapted for carnivory like leaves and roots), ferns, and horsetails. “Why no carnivorous ferns?” seems like an interesting question but it’s also kinda like “Why no flowering ferns?” Because you need structures (leaves, glandular trichomes, or roots) that can be exapted for a new purpose and flowering plants seem to have the most plasticity.
Ledericas@lemm.ee 1 month ago
you forgot gymnosperms, aka conifers, gingkos, cycads.
BodyBySisyphus@hexbear.net 1 month ago
Not really seeing the niche overlap there, as most carnivores are small, shallow rooted, and herbaceous. Gingkos are relicts, conifers tend to be woody, deep-rooted, and can’t grow in pure peat, so there’s probably less pressure to solve nitrogen deficiency. That leaves cycads, which do grow in swampy soils, but they haven’t changed a whole lot in tens of millions of years.
stray@pawb.social 1 month ago
en.m.wikipedia.org/wiki/Carnivorous_plant
AwesomeLowlander@sh.itjust.works 1 month ago
All the interesting botany questions have been answered
Hadriscus@jlai.lu 1 month ago
why tree big ??