In the history of life on Earth, five dramatic reductions in species richness (mass extinctions) have occurred. The sixth mass extinction is occurring now and is driven by human activity. Biodiversity...In the history of life on Earth, five dramatic reductions in species richness (mass extinctions) have occurred. The sixth mass extinction is occurring now and is driven by human activity. Biodiversity loss can be measured by categorizing species based on extinction risk according to the Red List, but it can also be assessed at the ecosystem scale. The greatest threats to biodiversity are habitat loss, overexploitation, pollution, the spread of invasive species, and climate change.
In the history of life on Earth, five dramatic reductions in species richness (mass extinctions) have occurred. The sixth mass extinction is occurring now and is driven by human activity. Biodiversity...In the history of life on Earth, five dramatic reductions in species richness (mass extinctions) have occurred. The sixth mass extinction is occurring now and is driven by human activity. Biodiversity loss can be measured by categorizing species based on extinction risk according to the Red List, but it can also be assessed at the ecosystem scale. The greatest threats to biodiversity are habitat loss, overexploitation, pollution, the spread of invasive species, and climate change.
