BIOL-1110 Lecture Notes - Lecture 28: Herbivore, Commensalism, Parasitism
10 May 2016
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Document Summary
Compare and contrast the six different kinds of interspecific interactions. Parasitism and herbivory are both types of predation. A negative (-) means the species is suffering. A positive (+) means the species is benefitting. =>interference: direct competition by interfering with one another. =>some plants produce chemical in the soil that harm nearby species. =>scramble: indirect interaction between 2 species for shared resources. =>plants compete for light, nutrients, and water with other plants. =>foraging animals take away food from other animals. =>humans take away food and other resources from other animals. =>top predators can control the # of herbivores, allow plants to flourish. =>can alter dynamics of competition between two species. =>one member benefits by consuming parts of individuals. =>parasitism: reduces hosts" fitness by depending on them for nourishment. =>many diseases caused by interactions b/w pathogen and host. =>type of symbiosis in which one species inadvertently harms another. =>does not benefit from harming the other species.
