BIOL 2Q04 Lecture Notes - Lecture 10: Intraspecific Competition, Interspecific Competition, Limiting Factor
2 Dec 2015
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Competition: two species use the same limited resource to the detriment of both. Predation: one animal species eats a second animal species. Herbivory: an animal species eats a plant species. Parasitism: two species live in a physically close obligatory relationship, in which the parasite depends metabolically on the host. Disease: association of a pathogenic microorganism and a host species, with the host suffering physiologically. Mutualism: close association of two species with mutual benefits. Populations, especially those exhibiting exponential growth, cannot continue to grow indefinitely. Interactions with the environment and among individuals regulate the population size. Charles darwin based his idea of natural selection on competition, the. Competition is regarded as a major force behind species divergence and specialization. Occurs when a number of organisms utilize common resources. Occurs when the organisms seeking a resource harm one another in the process, even if the resource is not in short supply.
