Biodiversity is the variety of different forms of life on earth , including the different plants, animals, micro-organisms, the genes they contain and the ecosystem they form. It refers to genetic variation, ecosystem variation, species variation (number of species) within an area, biome or planet.
What do you mean by biodiversity?
The term biodiversity (from “ biological diversity ”) refers to the variety of life on Earth at all its levels, from genes to ecosystems, and can encompass the evolutionary, ecological, and cultural processes that sustain life.
What is biodiversity definition PDF?
‘Biological diversity’ or biodiversity is that part of nature which includes the differences in genes among the individuals of a species , the variety and richness of all the plant and animal species at different scales in space, locally, in a region, in the country and the world, and various types of ecosystems, both ...
What is biodiversity short note?
Biodiversity is the variability of living organisms from all sources, including terrestrial, marine and other aquatic habitats, and the ecological complexes to which they belong ; this involves the variety of species, species and ecosystems.The significance of this concept is that the many aspects of biodiversity are ...
What is biodiversity and its importance?
Biodiversity is important to humans for many reasons. ... Ecological life support — biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services.
What are the 4 types of biodiversity?
- Species Diversity. Every ecosystem contains a unique collection of species, all interacting with each other. ...
- Genetic Diversity. Genetic diversity describes how closely related the members of one species are in a given ecosystem. ...
- Ecosystem Diversity. ...
- Functional Diversity.
What is the importance of biodiversity?
Biodiversity supports ecosystems to provide and purify water . Every two minutes a child dies from a water-borne disease. But through the continuous recycling of water, biodiversity maintains ecosystem services needed to sustain drinking water supplies. Ecosystems also play a significant role in purifying water.
What is biodiversity example?
Biodiversity is the variety of life . Most people recognize biodiversity by species—a group of individual living organisms that can interbreed. ... Examples of species include blue whales, white-tailed deer, white pine trees, sunflowers, and microscopic bacteria that can’t even be seen by the naked eye.
What is biodiversity in your own words?
Biodiversity is the shortened form of two words “biological” and “diversity” . It refers to all the variety of life that can be found on Earth (plants, animals, fungi and micro-organisms) as well as to the communities that they form and the habitats in which they live.
What is biodiversity one sentence?
The definition of biodiversity refers to the amount of diversity between different plants, animals and other species in a given habitat at a particular time . The different varieties and types of animals and plants that live in the ocean is an example of biodiversity.
How do humans affect biodiversity?
Humans affect biodiversity by their population numbers, use of land, and their lifestyles , causing damage to habitats for species. ... Through proper education, and by demanding that governments make decisions to preserve biodiversity, the human population will be able to sustain life on earth longer.
Is biodiversity good or bad to our health?
Biodiversity supports human and societal needs, including food and nutrition security, energy, development of medicines and pharmaceuticals and freshwater, which together underpin good health . ... Infectious diseases cause over one billion human infections per year, with millions of deaths each year globally.
What are types of biodiversity?
Usually three levels of biodiversity are discussed— genetic, species, and ecosystem diversity .
What are 5 benefits of biodiversity?
Support a larger number of plant species and, therefore, a greater variety of crops. Protect freshwater resources. Promote soils formation and protection . Provide for nutrient storage and recycling.
What are the 5 major causes of biodiversity loss?
Biodiversity loss is caused by five primary drivers: habitat loss, invasive species, overexploitation (extreme hunting and fishing pressure), pollution, climate change associated with global warming .
What are the causes of biodiversity?
- Climate change.
- Pollution.
- Destruction of habitats.
- Invasive alien species.
- Overexploitation of the natural environment.
- Extinction of species.
- Threat to human beings.
- Proliferation of pests.
