Search results
8 wrz 2023 · In the following, we will discuss proximate causation from the perspective of carbon-cycle controls, review evidence for the established types of ultimate causes (‘triggers’) of mass extinctions, examine mass extinction events with probable bioevolutionary triggers and tectono-oceanic triggers, and finally, consider other issues relevant to ...
8 wrz 2023 · Theory regarding the causation of mass extinctions is in need of systematization, which is the focus of this contribution. Every mass extinction has both an ultimate cause, i.e., the...
1 lip 2011 · A mass extinction or extinction event refers to an abrupt decrease in the number of species in a short span of geological time. The term is different from simple extinction that denotes...
22 wrz 2023 · ‘Mass extinctions’ have been a hot topic for several decades. 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.
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 lis 2008 · However, some have proposed that extensive volcanism combined with bolide impact may offer a general mechanism of mass extinction. To test this hypothesis we compared generic extinction percentages for 73 stages or substages of the Mesozoic and Cenozoic.
theory of extinction. The most frequent arguments are related either to bad genes or to bad luck. Whatever were the causes, it is logic to give an idea on each of the five major mass extinctions in the fossil record. The first major mass extinction event started in the Late Ordovician time.
