Well, it's clear that the Aluns need a well developed , since it's the best way to combine trees and shrubs with crops and cattle. If there are other small plants and animals living on the thales I see three possible developments for that:
1. Aluns and the other species live without interaction.
2. Aluns' superiority makes them the dominant species of the thales, which develops into ecological pressure and forces the extinction of the other animals and small plants.
3. The other animals and small plants avoid extinction because they're domesticated (partially maybe, ) by the Aluns.
On the other hand, if thales grow above large coral reefs I don't think it's possible a unless there's a way to create and manage large plantations on them. The nearby continents and islands, with enough fertile land, will be better places for that.
If Aluns have a large economy this is not based only on the agroforestal resources, they need something more. If agriculture plays an important role, then they will need plantations, but if you base Aluns' culture on ancient civilizations then they will only have subsistence farming and some trade. About the secondary sector... they need to transform raw or intermediate materials into goods, so they need some kind of transforming/producing system. Thales ecosystems could provide some of the raw materials they need, and the system, I imagine, would be that of the , so no factories (?). Also, the Aluns could be an intermediate culture in a large trading route, so they would receive and trade with some exotic raw materials that could give them some advantage among the other neighboring societies.
Un llapis mai dibuixa sense una mà.