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What Would Go Extinct?
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Topic Started: Nov 3 2016, 12:31 PM (3,425 Views)
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Yiqi15
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Apr 25 2017, 11:07 AM
Post #61
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- CaledonianWarrior96
- Apr 25 2017, 11:05 AM
What kind of animals would we expect to become apex predators in Australia if species like the dingo die out? I'd say probably saltwater crocodiles or feral cats.
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Rodlox
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Apr 25 2017, 10:40 PM
Post #62
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- CaledonianWarrior96
- Apr 25 2017, 11:05 AM
What kind of animals would we expect to become apex predators in Australia if species like the dingo die out? quolls, cats, rabbits, maybe roos or wombats re-enter the carnivory
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.---------------------------------------------. Parts of the Cluster Worlds: "Marsupialless Australia" (what-if) & "Out on a Branch" (future evolution) & "The Earth under a still sun" (WIP)
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Zorcuspine
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Apr 26 2017, 08:51 AM
Post #63
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- CaledonianWarrior96
- Apr 15 2017, 02:39 PM
I've heard that human headlice could die out without humans to parasitise if we died out as well. I suppose if their biology was specific to suit humans as a host and transferring to another species would be difficult then they should become extinct Also they would need to compete with head lice already adapted to other species of mammal, which I find highly unlikely.
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CaledonianWarrior96
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Jul 6 2017, 08:20 AM
Post #64
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How good are beetles adapting to new habitats? I'm looking at the hercules beetle but I'm not sure how well that would thrive without rainforests
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IIGSY
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Jul 6 2017, 12:40 PM
Post #65
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- CaledonianWarrior96
- Jul 6 2017, 08:20 AM
How good are beetles adapting to new habitats? I'm looking at the hercules beetle but I'm not sure how well that would thrive without rainforests Beetles are among the best at doing that.

As for the Hercules beetle specifically, I'm not to sure. As long as there is sufficient amounts of fruit, I think they should be fine.
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kusanagi
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Jul 20 2017, 11:43 AM
Post #66
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I read that few if any land animals weighing over 20kg will survive making coyotes and small deer among the largest survivors around. Though all the same I can't imagine this rule being concrete because not all habitats are equally disturbed by man. In the sea the plankton crisis and acidification will resemble the marine extinctions at the end of the Permian. Bivalves were poorly hit then compared to other groups of marine invertebrates for example. Animals with short or absent stages of their life cycle spent in the plankton did better. Inshore fishes survived and the largest marine vertebrates to persist are thought to have been inshore sharks around 1m in length. Domesticaed animals might not fare well without humans to care for them so the least modified of domesticates such as house cats and dingo-like dogs will be most likely to leave descendants.
Edited by kusanagi, Jul 20 2017, 11:46 AM.
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LittleLazyLass
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Jul 20 2017, 11:50 AM
Post #67
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It's not as simple and arbitrary as "stuff above this weight dies and under this weight lives". Once again, I think that if the K-Pg was a spec scenario Didelphodon and Icthyornis would've been some of the most successful animals in the Cenozoic.
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kusanagi
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Jul 20 2017, 12:19 PM
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- Little
- Jul 20 2017, 11:50 AM
It's not as simple and arbitrary as "stuff above this weight dies and under this weight lives". Once again, I think that if the K-Pg was a spec scenario Didelphodon and Icthyornis would've been some of the most successful animals in the Cenozoic. I did say habitat matters but so does the size of an organism and its population, and indeed its genetic diversity. Something to know is megafaunal predators died out in Ice Age refugia the size of Iberia so should humans disappear without technically taking out the largest mammals first, they're all dead clades walking anyway. Most of the animals easily adapting to anthropogenic habitats are small and include such unlikely survivors as angwantibos on cultivated African land. In Peru I have seen what are technically urban hoatzins in Tambopata. But for large animals the fronteirs are smaller, as a simple biotech could open up a habitat such as tundra for the usual kinds of modification, degradation and exploitation by man. There were in the past ideas of terraforming deserts to irrigate them for human use and with demands made for farming land I could imagine the idea brought back in the future. Without deserts, taigas and tundra where will the large vertebrates survive?
Edited by kusanagi, Jul 20 2017, 12:20 PM.
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LittleLazyLass
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Jul 20 2017, 12:23 PM
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Yes, the animals that survive will be small, but most small animals won't survive. Look at things like bird or mammal diversity before and after the K-Pg.
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totally not British, b-baka!
You like me (Unlike) I don't even really like this song that much but the title is pretty relatable sometimes, I guess.
Me  Forum user Uncanny Gemstar drew what is supposed to be a me. Thanks! Spoiler: click to toggle As they walk in, they're greeted by a small, poorly kept pathway leading to a poorly constructed Japanese-style gate. Behind this, a small field made up of corn, rice, wheat, potatoes, among other plants is contrasted by large piles of books, as well as a few rather out of place looking laptops. Off in the corner, a small woman, with long, striped, and strikingly colorful socks, no shoes, unremarkable denim shorts, a large, fancy black coat, arm warmers, glasses, a tuque, and somewhat unkempt, mid-length blue-and-pink-streaked red hair, is rummaging through a trash bin, located behind a sign saying "employees only". She continues this for a while (walking behind a wall to change her outfit now and then), until one of her visitors coughs. Startled, she looks up, apologizes, and grabs a handful of textbooks and novels before daintily running off to join them. What, you want me to tell you what these mean? Predenterra The (Lost) Lost World The Standing World Read First Clarifications on my sex and genderSorry if I come off as rude, I don't put much thought into word choice sometimes. I'm also super prone to editing my posts, sometimes multiple times, in the minutes following posting. For the love of god, take my posts from my earlier days on the forum with a grain of salt. I was not particularly knowledgeable or mature back then. Some of them are so cringe-worthy I can't even bring myself to look at them. Words Maybe Great Words - Words To Spec By
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It would have to be something extremely alien, pushing the limits of our imagination. But those are always my favorite kinds of life. ~~The Words of The Xenologist
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Yeah, and even if you don't agree with creationists on that concept, that doesn't mean they can't be decent people. I have friends who are creationist (possibly even young earth) that I get along with fine in general life. I don't think they're right of course, but that doesn't make them intellectual degenerates. ~~The Words of forbidden3
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Myo, if you don't stop reading the YouTube comments...
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And last night I dreamed I was blowing up a Kindergarten with a grenade launcher for no particular reason...
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SHEEEEAAAAATTTTTTHHHHHHHHHEEEEEEEEERRRRRRRRR!!!!!!!!
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The smell of rotting flesh really kills my appetite, surprising, but the visual appearance of corpses makes me hungry. Is that weird?
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I mean, let us say I'm a genderfluid blurflux demi-romantic woman who is sexually attracted to men, but only if they are Melanesian and have a voice like that of Nicholas Cage. Okay, so what?
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When I first saw that picture, I thought you were dissecting a condom.
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Seems like everything in this project is now dead.
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For April fool's, we had to make an orgasm that resembled a human foot.
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Even though he is our creator, that does not afford him the right to take our lives on a whim. But that is the thinking of a homs. He is a god. Such morals cannot apply to gods. So you think we should just shut up and die?! If that is the fate decided by a god. You are mistaken if you think we will simply accept such a fate and wait to die. We'll never stop fighting. Not till the end. To Zanza, the outcome is the same. Thus your logic is flawed.
- Hades - Kid Icarus Uprising
-
When freaky aliens give you lemons, make freaky alien lemonade.
- Kid Icarus Uprising
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But Souls are delicious. They're like bacon - they taste good on anything. But if you eat them, you completely remove them from existence! They can't move on or... or be reincarnated! Huh. I never really gave it much thought. Besides, what do you mean by reincarnation anyway? You know, being reborn as someone or something else. Which means different body, different memories, different experiences, yes? So isn't being reborn as "something else" the same as being "removed from existence"? I... I... eating souls isn't right! That depends on your definition of "right". All living things survive by eating other living things. So what? You're a god. You should be above all that! Gods are above living things, which doesn't necessarily mean we care about them.
- Some Dude on BBC Two
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You are being shagged... by a flightless parrot.
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kusanagi
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Jul 20 2017, 01:22 PM
Post #70
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And among those most likely to be hit by the twilight of man, contra Dixon, are the ordinary mice and rats - the specialised co-evolved forms most dependent upon man, that is. House mice died out when man left St Kilda. Murids more generally maybe not. Cloud rats are already analogs of primates and bulldog rats became pseudo-otters once on Sahul, and god knows what Cricetid grasshopper mice might become, but for now even other rodents like the squirrels and cavies will generally keep most of the myomorphs in check. Even the rabbits might not have it so easy given how the australian rabbit population, and the introduced carnivores that depended upon it, suffered a setback by way of disease outbreak and the lagomorphs as a group have been in decline since the Tertiary. Man will likely have no mercy on species he considers to be pests as his biotech advances, and only charismatic megafauna are 100% safe from becoming collateral damage. Recently the hookworm was annihilated but it does less damage than the rabbit, the brown rat or the house mouse. Getting man and his livestock out the way does not merely open up a blank slate.
As for the K-T boundary, I think people overestimate the extinction based on the sampling and overestimate its importance for placentals based on dodgy molecular clocks. Quite a few archaic mammal lines did get through (taeniodonts are non-placental eutherians for example) and probably the major supra-ordinal lineages of placentals were all already present at the boundary. To draw a paralell between the Anthropocene crisis and the K-T event would necessitate an understang of why (for example) metatherians were harmed so badly compared to eutherians. No one to my knowledge has explained why that I may draw close paralells between extinction events. The P-T marine extinctions are a closer analog but still only in part as there were actually two extinction events in close proximity and only one of those resembles that predicted imminent.
Edited by kusanagi, Jul 20 2017, 01:34 PM.
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IIGSY
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Jul 20 2017, 05:26 PM
Post #71
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A huntsman spider that wastes time on the internet because it has nothing better to do
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- kusanagi
- Jul 20 2017, 01:22 PM
And among those most likely to be hit by the twilight of man, contra Dixon, are the ordinary mice and rats - the specialised co-evolved forms most dependent upon man, that is. House mice died out when man left St Kilda. Murids more generally maybe not. Cloud rats are already analogs of primates and bulldog rats became pseudo-otters once on Sahul, and god knows what Cricetid grasshopper mice might become, but for now even other rodents like the squirrels and cavies will generally keep most of the myomorphs in check. Even the rabbits might not have it so easy given how the australian rabbit population, and the introduced carnivores that depended upon it, suffered a setback by way of disease outbreak and the lagomorphs as a group have been in decline since the Tertiary. Man will likely have no mercy on species he considers to be pests as his biotech advances, and only charismatic megafauna are 100% safe from becoming collateral damage. Recently the hookworm was annihilated but it does less damage than the rabbit, the brown rat or the house mouse. Getting man and his livestock out the way does not merely open up a blank slate.
As for the K-T boundary, I think people overestimate the extinction based on the sampling and overestimate its importance for placentals based on dodgy molecular clocks. Quite a few archaic mammal lines did get through (taeniodonts are non-placental eutherians for example) and probably the major supra-ordinal lineages of placentals were all already present at the boundary. To draw a paralell between the Anthropocene crisis and the K-T event would necessitate an understang of why (for example) metatherians were harmed so badly compared to eutherians. No one to my knowledge has explained why that I may draw close paralells between extinction events. The P-T marine extinctions are a closer analog but still only in part as there were actually two extinction events in close proximity and only one of those resembles that predicted imminent. Woah. You've been commenting a lot, but you really know whats up. I have a question for you.
Do you think any major arthropod groups are going to become extinct any time soon? I already mentioned small insect groups like grylloblatodea, but I want your input.
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Projects Punga: A terraformed world with no vertebrates Last one crawling: The last arthropod
ARTH-6810: A world without vertebrates (It's ded, but you can still read I guess)
Potential ideas- Swamp world: A world covered in lakes, with the largest being caspian sized. Nematozoic: After a mass extinction of ultimate proportions, a single species of nematode is the only surviving animal. Tri-devonian: A devonian like ecosystem with holocene species on three different continents.
Quotes "Arthropod respiratory systems aren't really "inefficient", they're just better suited to their body size. It would be quite inefficient for a tiny creature that can easily get all the oxygen it needs through passive diffusion to have a respiratory system that wastes energy on muscles that pump air into sacs. (Hence why lungless salamanders, uniquely miniscule and hyperabundant tetrapods, have ditched their lungs in favor of breathing with their skin and buccal mucous membranes.) But large, active insects already use muscles to pump air in and out of their spiracles, and I don't see why their tracheae couldn't develop pseudo- lungs if other conditions pressured them to grow larger."-HangingTheif
"Considering the lifespans of modern non- insect arthropods (decade-old old millipedes, 50 year old tarantulas, 100+ year old lobsters) I wouldn't be surprised if Arthropleura had a lifespan exceeding that of a large testudine"-HangingTheif
"Humans have a tribal mindset and it's not alien for tribes to war on each other. I mean, look at the atrocities chimpanzee tribes do to each other. Most of people's groupings and big conflicts in history are directly or obliquely manifestations of this tribal mindset."-Sceynyos-yis
"He's the leader of the bunch You know his Coconut Gun is finally back to fire in spurts. His Coconut Gun Can make you smile If he shoots ya it's firing in spurts. His Coconut Gun Is bigger, faster, stronger too! He's the gun member of the Coconut Crew! HUH!
C.G.! Coconut Gun! C.G.! Co-Coconut Gun! Shoot yourself with a Coconut Gun! HUH!"-Kamineigh
"RIP, rest in Peytoia."-Little
"In Summary: Piss on Lovecraft's racist grave by making lewds of Cthulhu and Nyarlathotep.
Then eat arby's and embrace the void."-Kamineigh
"Dougal Dixon rule 34."-Sayornis
Phylogeny of the arthropods and some related groups
In honor of the greatest clade of all time
More pictures
Other cool things
All African countries can fit into Brazil
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kusanagi
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Jul 20 2017, 06:53 PM
Post #72
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- Insect Illuminati Get Shrekt
- Jul 20 2017, 05:26 PM
- kusanagi
- Jul 20 2017, 01:22 PM
And among those most likely to be hit by the twilight of man, contra Dixon, are the ordinary mice and rats - the specialised co-evolved forms most dependent upon man, that is. House mice died out when man left St Kilda. Murids more generally maybe not. Cloud rats are already analogs of primates and bulldog rats became pseudo-otters once on Sahul, and god knows what Cricetid grasshopper mice might become, but for now even other rodents like the squirrels and cavies will generally keep most of the myomorphs in check. Even the rabbits might not have it so easy given how the australian rabbit population, and the introduced carnivores that depended upon it, suffered a setback by way of disease outbreak and the lagomorphs as a group have been in decline since the Tertiary. Man will likely have no mercy on species he considers to be pests as his biotech advances, and only charismatic megafauna are 100% safe from becoming collateral damage. Recently the hookworm was annihilated but it does less damage than the rabbit, the brown rat or the house mouse. Getting man and his livestock out the way does not merely open up a blank slate.
As for the K-T boundary, I think people overestimate the extinction based on the sampling and overestimate its importance for placentals based on dodgy molecular clocks. Quite a few archaic mammal lines did get through (taeniodonts are non-placental eutherians for example) and probably the major supra-ordinal lineages of placentals were all already present at the boundary. To draw a paralell between the Anthropocene crisis and the K-T event would necessitate an understang of why (for example) metatherians were harmed so badly compared to eutherians. No one to my knowledge has explained why that I may draw close paralells between extinction events. The P-T marine extinctions are a closer analog but still only in part as there were actually two extinction events in close proximity and only one of those resembles that predicted imminent.
Woah. You've been commenting a lot, but you really know whats up. I have a question for you. Do you think any major arthropod groups are going to become extinct any time soon? I already mentioned small insect groups like grylloblatodea, but I want your input. Well, no. All the major groups of arthropod are well established but what do yu mean by a major group? Presumbiably very speciose, or a higher level taxon/clade? Like most people with an interest in zoology I recognise the major clades of arthropod and within insecta and so on, but not in great detail. The big hitter will be the plankton crisis at sea, so any animals with a long planktonic stage will be hit hard and marginalised after that if not wiped out. Marine arthropods with a short or absent planktonic stage such as limulids ought to have a much higher chance of survival.
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