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Extinctions in North America were concentrated at the end of the Late Pleistocene, around 13,800–11,400 years Before Present, which were coincident with the onset of the Younger Dryas cooling period, as well as the emergence of the hunter-gatherer Clovis culture.
The data show that the late Pleistocene extinction event was spread over more than 50,000 years globally; was the accumulation of diachronous, shorter-term pulses that took place on a regional basis; and was amplified by the interaction of both biotic (humans as invasive species) and abiotic (climatic) drivers.
2 cze 2020 · Non-metric multidimensional scaling (NMDS) analysis revealed that both the plant and animal assemblages at Hall’s Cave changed significantly across the transition from the Late Pleistocene to...
12 kwi 2021 · Based on Clovis and Fishtail projectile point evidence, Paul Martin 13 formulated the challenging hypothesis of the “Pleistocene overkill”, which postulated that the appearance of humans in ...
16 lut 2021 · The disappearance of many North American megafauna at the end of the Pleistocene is a contentious topic. While the proposed causes for megafaunal extinction are varied, most researchers fall into...
9 lis 2020 · Ancient DNA evidence shows there were population bottlenecks and declining genetic diversity in the Late Pleistocene among a number of extant and extinct taxa, in some instances, beginning well before the first appearance of humans in North America (30–35).
1 gru 2013 · We explore the deep history of anthropogenic extinctions, trace the accelerating loss of biodiversity around the globe, and argue that Late Pleistocene and Holocene extinctions can be seen as part of a single complex continuum increasingly driven by anthropogenic factors that continue today.
