The mod I recently created has an interesting effect. Pretty much all the Mountain Halls in the world have been overrun by kobolds. Not exactly completely unexpected, since I made the kobolds not need to eat or drink, reach maturity at age 4, hatch in clutches of 3-8 and they're civ prefers detailed caves. Furthermore, dwarves don't reach maturity until age 16. My adventurer has been ambushed by kobolds many times. Surprisingly, even though I modded goblins to reach maturity at age 6, and to have litters of 3-8, they don't seem to be as widespread. In fact, in one world my modded orc race seems to be about as widespread as they are.
I'm wondering if kobolds would, in fact, be able to survive if I removed they're ability to survive without food, but retained the other advantages. I also know that dwarves have trouble getting enough food to survive in vanilla. The fact that I gave such advantages to kobolds may have merely exacerbated that problem. So, I'm wondering if there are any workarounds to make dwarves more likely to not starve (obviously not no eat, since that would effect fortress mode right?), so they will be less prone to having they're mountain halls overrun? I haven't checked legends to see if the kobolds are actually managing to defeat the dwarves in combat, but that's not likely to be the problem, since kobolds are so weak.
Also, the dwarves I get as migrants, at least in the first world I generated with the mod, do not have any names. I'm not sure why, exactly.