Some areas in the world, such as areas of Mexico, South Africa, Brazil, the southwestern United States, and Madagascar, have more biodiversity than others. Areas with extremely high levels of biodiversity are called hotspots.
Where does biodiversity occur?
Biodiversity is a measure of variation at the genetic, species, and ecosystem level. Terrestrial biodiversity is usually greater near the equator, which is the result of the warm climate and high primary productivity. Biodiversity is not distributed evenly on Earth, and is richer in the tropics.
Where is biodiversity loss happening the most?
This massive conversion of forests, wetlands, grasslands, and other terrestrial ecosystems has produced a 60 percent decline (on average) in the number of vertebrates worldwide since 1970, with the greatest losses in vertebrate populations occurring in freshwater habitats (83 percent) and in South and Central America ( …
What is happening to our biodiversity today?
Biodiversity is declining rapidly due to land use change, climate change, invasive species, overexploitation, and pollution. These result from demographic, economic, sociopolitical, cultural, technological, and other indirect drivers.
What is Australia’s biodiversity?
Australia’s biodiversity is both rich and unique; between 7 and 10 per cent of all species on Earth occur in Australia. A report prepared for the Australian Biological Resources Study in 2009 estimated that 566,398 species exist in the country.
What is the origin of biodiversity?
Originally the term was derived from “biological diversity”. 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.
What is biodiversity example?
It is the biodiversity at the most basic level. It includes all the species ranging from plants to different microorganisms. No two individuals of the same species are exactly similar. For example, humans show a lot of diversity among themselves.
What habitats are in danger?
Habitat loss poses the greatest threat to species. The world’s forests, swamps, plains, lakes, and other habitats continue to disappear as they are harvested for human consumption and cleared to make way for agriculture, housing, roads, pipelines and the other hallmarks of industrial development.
What is the current state of biodiversity?
Global biodiversity is the measure of biodiversity on planet Earth and is defined as the total variability of life forms. More than 99 percent of all species that ever lived on Earth are estimated to be extinct.
|Global estimate (described + undescribed)||>10,000|
What is the status of biodiversity in India?
India is the world’s 8th most biodiverse region with a 0.46 BioD score on diversity index, 102,718 species of fauna and 23.39% of the nation’s geographical area under forest and tree cover in 2020.
What is the status of biodiversity in Pakistan?
Pakistan is rich in biodiversity, particularly in the arid and semi-arid regions which cover almost 80% of the total land area. A number of animal and plant species are threatened and/or endangered largely due to over-exploitation and loss of natural habitat.
Which continent has the richest biodiversity in the world?
Countries with more biodiversity in the world
America is the continent that has the most countries rich in biodiversity: Brazil, Colombia, Ecuador, Mexico, Peru, Venezuela and the United States.
Why is Australian biodiversity so unique?
The uniqueness of Australia’s biodiversity is largely due to this continent being separated from other land masses for millions of years. … Many of Australia’s species, and even whole groups of species that comprise taxonomic families, are endemic (unique) to this continent (Table 8.1).
Which country has the worst rate of mammal extinction in the world?
It’s a bitter pill to swallow, but Australia has the worst mammal extinction rate in the world with a significant proportion of the surviving animals and plants listed as threatened.