BIOL 1141 Chapter Notes - Chapter 45: Commensalism, Herbivore, Primary Succession
23 Apr 2017
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Community: assemblage of species interacting with one another within the same environment. Species richness: number of species in a community. Species diversity: variety of species that make up a community: lists all the species in a community and also the relative abundance of each species. Island biogeography model: proposes that the biodiversity on an island is dependent on its distance from the mainland, with islands located a greater distance having a lower level of diversity. Habitat: place where an organism lives and is able to survive and reproduce. Ecological niche: role an organism plays in its community, including its habitat and its interactions with other organisms. Includes methods the species uses to acquire the resources it needs to meet energy, nutrient, and survival demands. Competitive exclusion principle: theory that no two species can occupy the same niche in the same place and at the same time.
