The Web of Life (22-3-27) Parasitism continued 1


Unlike predators, parasites do not kill their prey. In-stead, parasites very much want their host alive, at least for a spell. Parasites are looking for free rent and board, along with steady meals, at host expense.
Social parasites take advantage of ecological interac-tions in other social animals. Ant slavery is an example of social parasitism, as is brood parasitism.

Parasitoids contrast to other parasites in their debili-tating effect on their hosts. Parasitoids spend much of their life attached to or within a single host, which they ultimately sterilize or kill, and sometimes consume.