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Hace 4 días · Biodiversity loss, the reduction in an area’s biodiversity (the number of genes, species, individual organisms, or ecosystems) expressed by species loss, population declines and reductions in the genetic diversity within a species, and the collapse of biological communities.
Hace 18 horas · As the world faces the loss of a staggering number of species of animals and plants to endangerment and extinction, one University of Michigan scientist has an urgent message: Chemists and ...
Hace 5 días · It is normal for species diversity and populations to fluctuate - but the rate of extinction is now 100-1,000 times faster than scientists would expect.
Hace 18 horas · Cracked earth from warm temperatures (Getty Stock Images) The study found that even if humanity stopped using fossil fuels right now, nothing could stop the extinction event. So, even if humanity ...
Hace 1 día · Mammut was one of the many genera recorded within North America whose extinction causes are currently unresolved. During the latest Pleistocene of North America, two major events occurred: the development of Clovis culture from 13,200 to 12,800 years ago and the onset of the Younger Dryas cold phase from 12,900 to 11,700 years ago. [168]
Hace 3 días · The Permian ended with the most extensive extinction event recorded in paleontology: the Permian–Triassic extinction event. 90 to 95% of marine species became extinct, as well as 70% of all land organisms. It is also the only known mass extinction of insects.
Hace 18 horas · Harvard researchers have published a study showing that community over-specialisation precedes mass extinctions, offering a potential early warning system for marine biodiversity loss. Records of foraminifera have led us to think that there are evidence of extinction in the oceans. These tests are documented in a Harvard study. Hélder Lopes ...
