How did biodiversity develop?

Biodiversity is created by speciation, that is, the evolutionary appearance of new species; it is diminished by extinction. Only evolution can create new species, and this occurs only over geologic time (usually millions of years). On human or historical timescales, extinction decreases biodiversity irreversibly.

How did biodiversity arise?

3.2.U1 Biodiversity arises from evolutionary processes

Hence, in genetic terms, evolution consists of changes in the organism’s hereditary makeup. During the process of evolution – the history of life on earth – both processes speciation and (mas-)extinction were very common.

What is development in biodiversity?

Biodiversity—the diversity of life on Earth—is defined as the variability among living organisms from all sources, including diversity within species, between species, and of ecosystems. … Biodiversity is essential for sustainable development and human well-being.

Who developed biodiversity concept?

The word biodiversity is a contraction of the phrase “biological diversity” and was first coined in 1985 by Walter Rosen of the National Research Council as a title word in a seminar he was organizing to discuss biological diversity.

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What is history of biodiversity?

History. Biodiversity is the result of 3.5 billion years of evolution. The origin of life has not been established by science, however, some evidence suggests that life may already have been well-established only a few hundred million years after the formation of the Earth.

What have you learned about biodiversity?

Biodiversity is the number and variety of living organisms within a specific geographical region. These organisms work together to create a thriving and productive ecosystem. Genetic biodiversity refers to variation of DNA within a species.

Where does biodiversity come from?

The word BIODIVERSITY originates from the Greek word BIOS = LIFE and Latin word DIVERSITAS = VARIETY or DIFFERENCE. The whole word BIO DIVERSITY generally therefore means: VARIETY OF LIFE.

How does biodiversity contribute to the development?

Biodiversity conservation protects plant, animal, microbial and genetic resources for food production, agriculture, and ecosystem functions such as fertilizing the soil, recycling nutrients, regulating pests and disease, controlling erosion, and pollinating crops and trees.

How does biodiversity contribute to sustainability?

The higher biodiversity in an ecosystem means that there is a greater variety of genes and species in that ecosystem. A great variety of genes and species means that the ecosystem is better able to carry out natural processes in the face of external stress. Thus, the ecosystem is more sustainable.

How does development affect biodiversity?

Biodiversity is recognised as being key in ensuring a stable environment for businesses to operate in. Activities detrimental to biodiversity include: … building, development or sudden changes in land-use which destroy biodiversity-rich habitats or reduce the variety of local species.

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Who introduced biodiversity first?

At the ecosystem level, India is also very well-endowed with 10 distinct biogeographic zones. In 1985, Walter G. Rosen first coined the term ‘Biodiversity’. It is a compound word of the longer form ‘Biological diversity’ which was coined by Lovejoy in 1980 to denote the number of species present in a group.

What is the first reason to preserve biodiversity?

Healthy ecosystems clean our water, purify our air, maintain our soil, regulate the climate, recycle nutrients and provide us with food. They provide raw materials and resources for medicines and other purposes. They are at the foundation of all civilisation and sustain our economies.

What do we get from biodiversity?

Biodiversity supports human and societal needs, including food and nutrition security, energy, development of medicines and pharmaceuticals and freshwater, which together underpin good health. It also supports economic opportunities, and leisure activities that contribute to overall wellbeing.

Why is studying biodiversity important?

Biodiversity boosts ecosystem productivity where each species, no matter how small, all have an important role to play. … A larger number of plant species means a greater variety of crops. Greater species diversity ensures natural sustainability for all life forms.

What is biodiversity in simple 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 explain it?

Biodiversity is all the different kinds of life you’ll find in one area—the variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural world. Each of these species and organisms work together in ecosystems, like an intricate web, to maintain balance and support life.

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