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These different types of diversity may not be independent. There is, for example, a close link between vertebrate taxonomic and ecological diversity. [12] Other authors tried to organize the measurements of biodiversity in the following way: [13] traditional diversity measures species density, take into account the number of species in an area
Species abundance patterns can be best visualized in the form of relative abundance distribution plots. The consistency of relative species abundance patterns suggests that some common macroecological "rule" or process determines the distribution of individuals among species within a trophic level.
The observed species richness is affected not only by the number of individuals but also by the heterogeneity of the sample. If individuals are drawn from different environmental conditions (or different habitats), the species richness of the resulting set can be expected to be higher than if all individuals are drawn from similar environments.
Species richness, or biodiversity, increases from the poles to the tropics for a wide variety of terrestrial and marine organisms, often referred to as the latitudinal diversity gradient. [1] The latitudinal diversity gradient is one of the most widely recognized patterns in ecology. [1] It has been observed to varying degrees in Earth's past. [2]
SAD is a measurement of how common, or rare species are within an ecosystem. [5] This allows researchers to assess how different species are distributed throughout an ecosystem. SAD is one of the most basic measurements in ecology and is used very often, therefore many different methods of measurement and analysis have developed.
morphological diversity (which stems from genetic diversity and molecular diversity [11]) functional diversity (which is a measure of the number of functionally disparate species within a population (e.g. different feeding mechanism, different motility, predator vs prey, etc.) [ 12 ] )
Hubbell built on earlier neutral models, including Robert MacArthur and E.O. Wilson's theory of island biogeography [1] and Stephen Jay Gould's concepts of symmetry and null models. [ 7 ] An "ecological community" is a group of trophically similar, sympatric species that actually or potentially compete in a local area for the same or similar ...
Pages in category "Measurement of biodiversity" The following 21 pages are in this category, out of 21 total. This list may not reflect recent changes. ...