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The Fire Forest; In a hostile environment, a rich ecosystem hangs from the branches of giant trees
Topic Started: Feb 11 2016, 10:00 PM (4,496 Views)
HangingThief
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Table of Contents

9 million years in the future, life on earth hasn't changed all that much. The anthropocene age was not a severe mass extinction- humans wiped themselves out before they could eliminate many major groups of animals. But they did have a profound impact on the climate- by digging up fossilized swamp plants and algae and using them for energy, they unleashed millions of years of stored carbon back into the atmosphere. As the climate warmed, permafrost melted and bacteria began to digest the frozen plant matter, releasing even more greenhouse gases. They could do nothing as their seas rose and arable land desertified, politics preventing them from taking any steps toward population reduction. The eruption of the Yellowstone caldera midway through the 21st century was the last straw. After the humans, their pollution and their agricultural fields went away, forests and algal blooms went to town converting the human and volcano created co2 into oxygen and creating oxygen rich conditions not unlike the Carboniferous. The ice caps have melted entirely, and barely a dry spot is left- swamp became more common than forest.
(EDIT: there's some things wrong with that section^, so just ignore it. For example, the Yellowstone caldera wouldn't actually erupt so soon and cause severe climate change, and it's a cliche anyway. I'll fix it eventually. The basic premise is that the earth is warmer, and this project takes place in coastal arctic regions of North America.)
Much of the world became a paradise, especially for ectothermic animals. (However, mammals and birds certainly didn't go anywhere or give up their niches to gigantic insects, as sad as it is.) The coal swamps returned in this thick, humid atmosphere in any reasonably warm lowland area. Life flourished in most areas. But these areas are not what we are going to focus on.
The far northern coastal regions is not hot and humid or cold and dry. It is best described as a mild, rather dry Mediterranean climate. In the summer, rain is rare and most moisture comes from sea fog. It should be a desert. But it's not- there are extremely dense forests consisting of the towering descendants of redwoods (Sequoia destruaradix) and bamboos (Tuberculobambusa gigas). The soil is dry and devoid of other plant life. (No thanks to the shade and acidic carpet of needles created by the redwoods.) How do these giant plants get enough water to survive? What is their secret?
It's all thanks to their roots. In the redwoods, it's rather simple and has to do with the geography- the areas with redwood forests correlate with shallow water tables. Most trees start their life with a large taproot for getting moisture from the ground, but become shallow rooted in adulthood. The coast redwoods that the future redwoods evolved from were no exception. But the future redwoods evolved to keep it, and grow quite possibly the biggest taproot ever to pierce into the water table and suck out the water. But this brings to light a problem- how do the young trees become established?
The establishment of young trees is an unusual case of what could be described as botanical parental care and sacrifice of offspring. Most plants adopt the strategy of spreading their seeds as far away as possible so that offspring aren't in competition with their parent. But a baby tree can't obtain water on its own in this climate- it needs help. So, the parent tree connects some roots with a nearby sapling (which grows in the winter) shares water with it. But this sapling isn't destined to become a giant tree- it's mother simply can't have another redwood grow right next to it. The young tree "understands" this and will sacrifice itself to a sibling- another sapling growing further from the mother. It will connect roots and give the water being pumped to it by their mother to the next sapling. As soon as it has connected to another sapling, it mostly stops growing itself apart from strengthening the roots used to pump water to and from its neighbors. It becomes nothing more than a water transportation unit. A chain of these water transporters continues, sometimes through dozens of young trees, until one that is a sufficient distance from the mother tree is reached. This all must happen before the winter is over- any unconnected saplings die in the summer drought. The final link grows very rapidly, as the mother tree pumps not only fluids but also sugar (as their is little sunlight below the canopy) and nitrogen to the young tree to fuel it. Because it receives everything it needs from its mother, it focuses on two things- growing a tall trunk and thick bark, and growing its taproot. Once the taproot hits the water table, however, the mother doesn't cut it off just yet- perhaps if it has many offspring it will cut off the weaker ones, but generally it keeps the supply flowing. Even though the tree is independent, it's not out of danger yet- indeed, it will not be completely out of danger for hundreds of years. It is important that it grows as tall as possible as fast as possible, and not just because it needs sunlight. We will get around to the reason why shortly.
The fast growing bamboo grows in the redwood forest when a tree falls down and lets in sunlight. But in general, places with underground reservoirs are practically monocultures of redwoods (at least from a ground level view) and those without are dominated by bamboo. But in many places, due to redwood's previously described water sharing chains, redwoods can slowly encroach upon the bamboo.
So how does the bamboo get its water? One clue is that some species of related, deciduous bamboos have colonized the inland deserts. They have become succulents. Not visible stem or leaf succulents like cacti, but rather root succulents- they have enormous underground tubers for storing water and sugar. One curious fact, though, is that the winters are not long or wet enough for a stand to accumulate enough water to last it through the summer. It should run dry after a bit of vigorous spring growth. Yet it doesn't.

Tomorrow, I'll post why there are only bamboo and redwoods, why it is necessary for the young redwoods to receive support from their mother even after hitting the water table, and why the bamboo doesn't run out of water- (hint: it's in the title) I probably won't be getting around to animals for a while.
Edited by HangingThief, Aug 22 2016, 09:23 PM.
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HangingThief
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truteal
Feb 19 2016, 09:02 PM
LittleIslander
Feb 19 2016, 04:55 PM
Not sure how I feel about the Kea descendant. The idea of Kea's becoming established seems a bit shaky, and I don't see why you couldn't use any number of other birds as ancestors. It's extreme behaviour and proportions also seem unnecessary to me. Why'd it evolve such odd methods of life and hunting?
I agree, maybe you could make its ancestor another parrot species?

it was originally descended from caracaras, but i (stupidly) changed it because of the Carakiller. I'll change it back soon.
Edited by HangingThief, Feb 19 2016, 09:41 PM.
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HangingThief
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LittleIslander
Feb 19 2016, 09:08 PM
I like that the harpoon bugs aren't just the most derived form, that the more "primitive" ones are still around, living alongside them. People all too often like imaging evolution as linear, but more often than not this is the case, particularly with something like insects.

Also, a note on the table of contents, some people use different settings for amounts of posts per page, so what page it's on might not be correct all the time. For example, post 17 is on page one for me, but for most people it's on page two. You can click the post number, and it will bring you to the single post by itself. From there you can get a link and put it in the table of contents like this, by using the "ULR" button in the posting UI, so the person can just get a link to the post instead of tracking it down. Similarly, you can put images directly into posts with the "Image" button and an imgur link, although it's recommended to put them in spoilers for the sake of people who's browsers don't auto re-size them (like mine).
thanks, i was wondering how to do that

Edit: I meant the table of contents, I actually did post the photos with the image button (like I did for the picture of the trees in the first post) and put them in spoilers but they weren't showing up for whatever reason, so I just put a link underneath them. That's why it says "posted image".
Edited by HangingThief, Feb 19 2016, 10:16 PM.
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HangingThief
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Sheather
Feb 19 2016, 09:22 PM
I really like the evolution you've done for the plants.
What is the pine vine's ancestor?
Melaleuca tree
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Datura
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Aside from redwoods and bamboo, do any other plants have any major role in the environment? Aside from the pine vines, surely some weedy plants would make it.

Also, to use imgur images on the forum, right click on the image, copy the image link, and put it in the image BBCode.
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Vorsa
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This is really interesting and unique. However, the pictures (for me at least) aren't appearing unless I click the link. Have you tried posting the image URL into the label 'image' on the full post screen like so: (quote this to see how)

Posted Image


Edit: Nevermind, I can see why you posted the links. For whatever reason, Imgur doesn't work. Perhaps you can upload them to a DA stash if you have an account
My Deviantart: http://desorages.deviantart.com/

Birbs

"you are about to try that on a species that clawed its way to the top of a 4 billion year deep corpse pile of evolution. one that has committed the genocide you are contemplating several times already. they are the pinnacle of intelligence-based survival techniques and outnumber you 7 billion to 1" - humans vs machine
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Sheather
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They work just fine.

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The Gaiaverse

| Eden | Terra Metropolis | Life of the Sylvan Islands |


Other Spec Evo

| Sheatheria | Serina | The Last Dinosaur

A Wholesome and Good Thing

| Sam |
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HangingThief
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Datura
Feb 20 2016, 06:45 PM
Aside from redwoods and bamboo, do any other plants have any major role in the environment? Aside from the pine vines, surely some weedy plants would make it.

Also, to use imgur images on the forum, right click on the image, copy the image link, and put it in the image BBCode.
Some smaller herbaceous plants grow in the winter, but in the summer they all get burned.
In the canopy there's plenty of epiphytic plants, including desiccation resistant ferns and mosses, cacti and other succulent plants that grow in soil deposits, gigantic mistletoes and other parasitic plants, and tons of epiphytes including bromeliads, orchids, rhododendrons, other vines besides pinevines, drought tolerant pitcher plant relatives etc. but they all have to adapt to the lack of rainfall and nutrients.

I have been trying to post images but they never show up, just a little box that says "posted image."
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HangingThief
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Sheather
Feb 20 2016, 07:29 PM
They work just fine.

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Well actually, earlier I noticed that some of them did work (including the one in the intro) but not all of them and never more than one at a time.
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Datura
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http://i.imgur.com/vLIJ7aY.jpg

Use the image address, like this.
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HangingThief
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I did, that's why it says "posted image" above the links. I added the links after seeing that the images didn't work.
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Datura
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Huh, that's odd.
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HangingThief
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I don't think anybody needs to see my hideous pencil sketches anyway unless they really want to lol.
Also, I fixed the bird thing. I also watched the episode of The Future Is Wild with the carakiller for the first time, and was disheartened to find that not only my use of a caracara descendant but ALSO the idea of an environment with frequent wildfires wasn't unique...
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Datura
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That is not a reason to give up on it, at all. Also, Earth has had time periods where forest fires were frequent. The Carboniferous, for instance. And there are environments just as bad as that today on Earth. Also, the makers of TFIW aren't going to care that you had some similar ideas to them unless you blatantly plagiarized them, which you didn't.

Nature often comes up with the same stuff over and over again, usually for a reason. It can also happen with projects.
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LittleLazyLass
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Proud quilt in a bag

HangingThief
Feb 20 2016, 08:17 PM
I don't think anybody needs to see my hideous pencil sketches anyway unless they really want to lol.
Also, I fixed the bird thing. I also watched the episode of The Future Is Wild with the carakiller for the first time, and was disheartened to find that not only my use of a caracara descendant but ALSO the idea of an environment with frequent wildfires wasn't unique...
Once again, completely different. One is an open, treeless savannah, whereas this is a redwood/bamboo dominated dry forest.
totally not British, b-baka!
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I don't even really like this song that much but the title is pretty relatable sometimes, I guess.
Me
What, you want me to tell you what these mean?
Read First
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Thylacine
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Also, Australia.
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EDIT: Reduced image size, width 4614 to width 1154 - Holben
Edited by Holben, Feb 20 2016, 09:10 PM.
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