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A huge cataclysm struck the world several thousand years ago, in which debris from magical meteorites basically screwed up the whole planet, altering its ecosystems to include creatures that evolved/mutated to take on magical abilities. This is how you get widespread creatures that go beyond stuff of myth, like numerous breeds of dragons, wisps that follow magical phenomena in the sky for sustenance, large golem like creatures born from lava and obsidian, etc. How might I establish a functional ecosystem based on this concept?

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closed as primarily opinion-based by sphennings, L.Dutch, JBH, Slarty, kingledion Nov 26 '17 at 5:36

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

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    $\begingroup$ It is really hard to answer your question without knowing anything about the magic of your world. Perhaps, you could give us more details about your world. $\endgroup$ – Olga Nov 25 '17 at 16:24
  • $\begingroup$ Sounds like Tha backstory for Pokémon $\endgroup$ – pojo-guy Nov 25 '17 at 16:56
  • $\begingroup$ So, will your ecosystem purely consists of mutated creatures and plants, or only some of them will occupy the new ecosystem? How different they will be from the creature they mutated from? $\endgroup$ – Vylix Nov 25 '17 at 18:21
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    $\begingroup$ Building on @Olga's comment, we also need to know about your world before the impact. $\endgroup$ – JBH Nov 25 '17 at 21:35
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    $\begingroup$ Well, I expect magivore will be a niche. $\endgroup$ – JDługosz Nov 26 '17 at 4:03
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First, define your environment.

Ecosystem does not only include creatures, but also the inorganic environment. Will it be a desert? A volcanic terrain? Sea? A lake with a lot of mana scattered around?


Second, establish a food chain.

Decide who will be eating who. Focus on the uniqueness of each of your creature and the similarity with earth's creature, or not.

A logical step would be the bigger creature eat smaller creature, but even earth has nature freaks, so get creative. I'm imagining a plant that specialize on eating ethereal wisps. Faeries that prey on centaur and other sentient creature.


Because you've introduced magic, then let's try to make magic as the primary source of energy, instead of sun.

  1. Get something that feeds from magic, or mana. This is like "plankton" in our ecosystem. You can choose to have plants, but I recommend "spirit". They grow by absorbing mana from their surrounding. Other creatures cannot do that.

  2. Get your first level consumer. Something that feeds on spirit. For example, "fairy". Imagine the spirit like a tiny floating fluffy ball and the fairies flying around consuming their energy. They do not "eat" them, but rather only takes the mana, so the spirit can still absorb mana again.

  3. Get your second level consumer. I'll give you two examples: centaurs, and for creativity: Venus fairy-eater.

  4. Proceed adding more creatures, define their relationship with each other.

  5. Optional: for completeness sake, think about how to recycle energy in your world. Here, dead bodies are decomposed by detrivors, like bacteria, worms, cockroach, etc. How would that work in your world? Will they simply become ghost/spirit? Do they have physical body that can rot?

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    $\begingroup$ When doing (4), also consider that if creature A eats creature B, and creature B eats creature C, then there's no real reason why creature A cannot eat creature C directly, but it's unlikely that creature C would eat creature A (unless, perhaps, C encounter A when A is already dead). Make the food chain a web, not a pyramid. $\endgroup$ – a CVn Nov 25 '17 at 19:35
  • $\begingroup$ Nice approach. Not perfect, but that's not a criticism because there isn't a perfect way of doing this. Plus one. $\endgroup$ – a4android Nov 26 '17 at 3:26
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I suggest doing research into real ecology to understand how genuine, natural ecosystems function. Once you have succeeded with that, consider the impact of only one creature with magical abilities on the ecology. This will be invariably catastrophic. Now devise what magical beast or plant and its abilities is needed to counteract its impact. Keep adding and you will build your own functional magical ecology.

This is a step by step method. It will enable you to learn how to construct any sort of ecology,

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