How is Biodiversity Measured?


How is Biodiversity Measured?

 This is in detail Chapter: 04 of conservation and biodiversity BS Semester 4 Botany, zoology and Chemistry Classes. How is Biodiversity Measured? is an important topic in conservation biology. Biodiversity is Variety within the species and among the species. It is used to measure the variety of organisms in an ecosystem.

How is Biodiversity Measured?

Measuring biodiversity:

Measuring biodiversity means determining the number of species in a specific area. Pakistan is no institution for the calculation of new inventory species, measuring biodiversity, and the monitoring systems for the identification of species. Due to a lack of quantitative and qualitative pieces of information about biodiversity, at present, we know little about the biodiversity of the mountains of Pakistan

‘According to Whittaker (1972), the community diversity is measured on three scales:

(i)Alpha Diversity:

lt describes the number of species within a small or local area

It tells the species diversity in a given community (each site).

It depends upon species richness and evenness within a habit…

 Functional Diversity:

Functional diversity refers to the variety of biological processes, functions, or characteristics of a particular ecosystem in this case marine biodiversity. Functional diversity reflects the biological complexity of an ecosystem.

Taxonomic Diversity:

This diversity considers the genetic relationships between the different groups of species.


The biodiversity has the following values:

  1. i) Productive values: Biodiversity produces a number of products harvested from nature and sold in the commercial market. Indirectly it provides economic benefits to people that include water quality, soil protection, environmental monitoring, scientific research, recreation, etc.

ii. it can be assigned to goods such as fuse! woods, leaves, forests products, etc. which may be consumed locally and do not figure in national and international markets

iii. Social values:

The loss of biodiversity directly influences social life possibly by influencing ecosystem functions (energy flow and biogeochemical cycles, global warming, and acid rain).

iv) Aesthetic values:

Aesthetic values such as the refreshing fragrance of the flowers, the taste of berries, melodious songs of birds, etc. compel the human beings to preserve them because human beings derive great enjoyment from the natural environment. Similarly, botanical zoological gardens arc the means of biodiversity conservation and are of aesthetic value.

v.Ethical values:

Every organism has an inherent right to exist regardless of whether it’s valuable to human beings or not. It should be the prime responsibility and moral obligation of man, to preserve and conserve other organisms which will directly or indirectly favor the existence of the man.

vi) Ecological values:

  • Biodiversity maintains the integrity of the environment through:
  • Maintaining CO,/O; balance
  • Regulation of biogeochemical cycles
  • Absorption and degradation of pollutants
  • Regulation of climate.
  • Protective services to biodiversity

vii) Economic values:

Biodiversity has great economic value because economic development depends upon efficient and economic management of biotic resources.

viii) Legal values:

Since the earth is the homeland of all living organisms, all have equal rights to coexist on the surface of the earth with all benefits. Unless some legal value is attached to biodiversity, it will not be possible to protect against the rapid extinction of species.

 BS Honors Courses Notes

Course Code:Bot:404
Course Title:Biodiversity& Conservation

Post a Comment