Biodiversity is the sum of all species on the planet
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Answer:
Explanation:
In essence, biological diversity or biodiversity is the sum of all life on Earth. It includes the vast array of life forms, their individual genetic makeup, their life processes, and their interrelationships in communities and ecosystems. Peter H. Rogan, Director of the Botanical Garden offers this more eloquent definition:
“At the simplest level, biodiversity is the sum total of all the plants, animals, fungi and microorganisms in the world, or in a particular area; all of their individual variation; and all of the interactions between them. It is the set of living organisms that make up the fabric of the planet Earth and allow it to function as it does, by capturing energy from the sun and using it to drive all of life’s processes; by forming communities of organisms that have, through several billion years of porno xxx on Earth, altered the nature of the atmosphere, the soil and the water of our planet; and by making possible the sustainability of our planet through their life activities now.”
Levels Of Biodiversity
Biodiversity is commonly studied at three levels: genetic, species, and ecosystem diversity.
- Genetic Diversity
- Species Diversity
- Ecosystem Diversity
Number of Species
Approximately 1.7 million species have so far been identified and scientifically described, but this represents only a fraction of life on Earth. T
Microorganisms and insects are thought to comprise the largest numbers of species. Insects alone are estimated to account for between 2 and 100 million species, with a working estimate within the scientific community of 8 million. Of the 100 species of animals described to date, approximately 750,000 are insects.
Measuring Biodiversity
Every life form plays a role in ecosystem processes, although both the nature and scope of its functions will vary. The contribution of a single species to biodiversity is frequently measured in two ways. The first is its taxonomic significance; that is to say that the more different a species is – or the more isolated in the taxonomic hierarchy used to classify species – the greater its contribution to the overall measure of global biodiversity. The second measure focuses on the impact of a particular species on an ecological community. So-called “keystone species” are those whose role within the ecosystem is so great that their removal from the local or regional ecosystem will have a disproportionate effect.