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8 cze 2018 · Biologists now suggest that a sixth mass extinction may be under way, given the known species losses over the past few centuries and millennia.
19 cze 2015 · We used the IUCN data to calculate modern extinction rates in two ways: (i) we estimate a “highly conservative modern extinction rate” by using the data exclusively on species listed as EX, and (ii) we calculate a “conservative extinction rate” by including also both EW and PE species (table S2).
23 lis 2022 · Here, I show that the sixth major mass extinction (defined as > 60% species loss) will be avoided, but a minor mass extinction, 20–50% animal species loss (1% now), will occur when humans...
It has been claimed that the Sixth Mass Extinction may be underway, this time caused entirely by humans. Although considerable evidence indicates that there is a biodiversity crisis of increasing extinctions and plummeting abundances, some do not accept that this amounts to a Sixth Mass Extinction.
1 lut 2020 · Current mass extinction is underway through anthropogenic activities, widespread diseases, and the possibility of extraterrestrial bolide impacts.
2 lis 2019 · We review some of the most basic stochastic and analytical methods of calculating extinction risk at different scales, including population viability analysis, stochastic metapopulation occupancy models, and the species–area relationship.
The ongoing sixth mass species extinction is the result of the destruction of component populations leading to eventual extirpation of entire species. Populations and species extinctions have severe implications for society through the degradation of ecosystem services.
