A type of symbiosis, as among certain ants, in which one species is dominant and makes the members of another species perform the tasks required for their mutual survival.

• 共生(现象), 役生现象一种共生(现象), 如某些蚂蚁，在这种现象中，一个种处于支配地位，并使得别的种的成员承担他们共同生存所需完成的任务