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1 lut 2020 · Current mass extinction is underway through anthropogenic activities, widespread diseases, and the possibility of extraterrestrial bolide impacts.
22 wrz 2023 · What triggers a mass extinction? How does a mass extinction impact the evolution of life? How does our ecosystem recover after a mass extinction? These questions attracted the interest of both scientists and the public alike.
8 wrz 2023 · Since 1980, research on the causation of mass extinctions has been characterized by a ‘bandwagon effect’, in which a model developed for one specific mass extinction is claimed to apply to many or all biocrises, reducing agency to a single cause.
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.
19 cze 2015 · Using the resulting high background extinction rate provides a stringent test for assessing whether current modern extinction rates indicate that a mass extinction event is under way. Previous estimates of background extinction rates for other taxa are invariably lower than the mammal-derived estimate of 2 E/MSY used here.
13 sty 2022 · Summary: The history of life on Earth has been marked five times by events of mass biodiversity extinction caused by extreme natural phenomena. Today, many experts warn that a Sixth Mass...
5 sty 2023 · Over 40 years ago, Raup and Sepkoski identified five episodes of elevated extinction in the marine fossil record that were thought to be statistically distinct, thus warranting the term the “Big Five” mass extinctions.
