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Usually three levels of biodiversity are discussed—genetic, species, and ecosystem diversity. Genetic diversity is all the different genes contained in all individual plants, animals, fungi, and microorganisms. It occurs within a species as well as between species. Ecological diversity
Ecological diversity is the largest scale of biodiversity, and within each ecosystem, there is a great deal of both species and genetic diversity. Species diversity is determined not only by the number of species within a biological community—i.e., species richness—but also by the relative abundance of individuals in that community. … Two communities may be equally rich in species but differ in relative abundance At regional scales, diversity is also increased by speciation and decreased by extinction. These decreases in diversity include those caused by regional extinction events that extirpate species from the region in question but not necessarily from all other regions.Four Types of Biodiversity
Species Diversity. Every ecosystem contains a unique collection of species, all interacting with each other. ...
Genetic Diversity. Genetic diversity describes how closely related the members of one species are in a given ecosystem. ...
Ecosystem Diversity. ...
Functional Diversity.
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