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A variety of objective means exist to empirically measure biodiversity. Each measure relates to a particular use of the data, and is likely to be associated with the variety of genes. Biodiversity is commonly measured in terms of taxonomic richness of a geographic area over a time interval. In order to calculate biodiversity, species evenness ...
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.
The concept of nature-positive is playing a role in mainstreaming the goals of the Global Biodiversity Framework (GBF) for biodiversity. [234] The aim of mainstreaming is to embed biodiversity considerations into public and private practice to conserve and sustainably use biodiversity on global and local levels. [ 235 ]
The concept was first proposed in 2012 [14] [15] and developed in the following years. [ 3 ] [ 5 ] [ 7 ] The GLOBIS-B global cooperation project, aimed to advance the challenge of practical implementation of EBVs by supporting interoperability and cooperation activities among diverse biodiversity infrastructures, started in 2015. [ 16 ]
Global biodiversity is the measure of biodiversity on planet Earth and is defined as the total variability of life forms. More than 99 percent of all species [ 1 ] that ever lived on Earth are estimated to be extinct .
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In ecology, gamma diversity (γ-diversity) is the total species diversity in a landscape. The term was introduced by R. H. Whittaker [1] together with the terms alpha diversity (α-diversity) and beta diversity (β-diversity).
De Candolle was the first to describe the differences between the small-scale and large-scale distribution patterns of organisms around the globe. [10] Several additional scientists contributed new theories to further develop the concept of biogeography. Charles Lyell developed the Theory of Uniformitarianism after studying fossils.
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