BIOL 2227 Chapter Notes - Chapter 14: Parasitoid, Herbivore, Parasitism
Document Summary
Chapter 14 exploitative interactions: predation, herbivory, parasitism and disease: Exploitative interactions: the diverse interactions between species that the interaction enhances the fitness of one individual; the predator, pathogen while reduces the fitness of the exploited individuals the prey. Typical predators are animals that feed on other animals. Parasites: live on the tissue of their host, often reducing the fitness of the host, but not generally kills it in the process. Parasitoid: is an insect whose larva consumes its host and kills it in the process: parasitioid are functionally equivalent to predators. Pathogens: induce disease, a debilitating condition in their hosts. 14. 1 complex interactions: exploitative interactions weave populations into a web of relationships that defy easy generalizations. There are parasites and pathogens that manipulate host behavior: Acanthocephlans- are spiny headed worms change the habit of amphipods, small aquatic crustaceans in a way that the infected amphipod will be eaten by a suitable vertebrate host like ducks, beavers, and muskrats.
