RNR 316 Natural Resources Ecology - Chapter 15

These flashcards cover key vocabulary related to parasitism and infectious diseases, as discussed in Chapter 15 of the lecture notes.

Parasitism

A relationship where one organism (the parasite) benefits at the expense of another organism (the host), which is harmed.

Ectoparasites

Parasites that live on the outside of the host organism.

Endoparasites

Parasites that live inside the host organism.

Vertical transmission

Transmission of a parasite from parent to offspring.

Horizontal transmission

Transmission of a parasite between individuals other than parent and offspring.

S-I-R model

A model representing the dynamics of disease transmission, consisting of Susceptible, Infected, and Resistant populations.

Reservoir species

Species that carry a parasite but do not succumb to disease, serving as a continuous source of infection.

Infection resistance

The ability of a host to prevent infection through immune response or behavior.

Infection tolerance

The ability of a host to minimize harm from an infection.

Red Queen Hypothesis

An evolutionary hypothesis that suggests hosts and parasites are in an ongoing 'arms race' to evolve defenses and counter-defenses.