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How did life on Earth become so diverse?

Evolution and diversity result from the interactions between organisms and their environments and the consequences of these interactions over long periods of time. Organisms continually adapt to their environments, and the diversity of environments that exists promotes a diversity of organisms adapted to them.

How important are the diverse species in our lives?

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. Recreation—many recreational pursuits rely on our unique biodiversity , such as birdwatching, hiking, camping and fishing.

What would happen if we didn’t have biological diversity?

Every ecosystem on earth needs biodiversity and without it the whole web of life that includes us humans will collapse. Species provide important resources so we can survive. The ocean and biodiversity need each other without biodiversity the ocean would be murky with no sign of life.

What are major threats to biodiversity?

Five main threats to biodiversity are commonly recognized in the programmes of work of the Convention: invasive alien species, climate change, nutrient loading and pollution, habitat change, and overexploitation.

How do humans affect biodiversity positively?

Ways in which people positively affect ecosystems around the world include: Recycling. Establishing wildlife preserves and parks. Creating green, open space laws.

How humans are helping the environment?

Humans and the environment Cutting down trees and littering have a negative effect on animals and plants. Protecting endangered species and cleaning lakes and seas has a positive effect on the environment. At home you can help the planet by recycling waste and growing plants or vegetables.

What is loss of genetic diversity?

Loss of genetic diversity increases the risk of extinction of a population through inbreeding depression. In addition, the number of deleterious genetic variations, which might accumulate in a small population through genetic drift, can also make the population vulnerable.

Why is genetic diversity important for conservation?

Genetic diversity determines the potential fitness of a population and ultimately its long-term persistence, because genes encode phenotypic information. Extinction risk has been associated with low genetic diversity and several researchers have documented reduced fitness in populations with low genetic diversity.

What does genetic diversity increase?

Genetic diversity serves as a way for populations to adapt to changing environments. With more variation, it is more likely that some individuals in a population will possess variations of alleles that are suited for the environment. Those individuals are more likely to survive to produce offspring bearing that allele.