Definition Of Biodiversity Index
However only around 1 2 million species have been identified and described so far most of which are insects.
Definition of biodiversity index. Biodiversity refers to every living thing including plants bacteria animals and humans. A simple biodiversity index is calculated as follows. Number of species in the area total number of individuals in the area biodiversity index. 1 dominance indices and 2 information statistic indices.
The biodiversity diversity index species richness and evenness of moth fauna in peshawar is mainly due to the rich vegetation in this area as vegetation plays an important role for the existence of insect fauna in a community as it provides the main source of food etc. This word became more meaningful after edward o. Brief outlines of the two types of diversity indices of biodiversity are discussed in this article. Wilson of harvard university introduced it in a book entitled.
Biodiversity is a contraction of biological diversity. It reflects the number variety and variability of living organisms and how these change from one location to another and over time. Taking into account the inherent differences in the richness in biodiversity of tropical vs temperate regions new vs mature cities large vs small cities developing vs developed countries it was agreed at the third expert workshop on the development of the city biodiversity index that the working definition of. Biodiversity is a word recently introduced by experts in the field of biology.
A diversity index is a quantitative measure that reflects how many different types there are in a dataset and that can simultaneously take into account the phylogenetic relations among the individuals distributed among those types such as richness divergence or evenness these indices are statistical representations of biodiversity in different aspects. Biological diversity in an environment as indicated by numbers of different species of plants and animals other words from biodiversity did you know. Biodiversity includes diversity within species genetic diversity between species species diversity and between ecosystems ecosystem diversity. Definition of biodiversity.
A common measure of this variety called species richness is the count of species in an area. The two types are. Scientists use a formula called the biodiversity index to describe the amount of species diversity in a given area. A widely used dominance index is simpson s diversity index.
It takes into account.