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Has the Earth’s sixth mass extinction already arrived?
Differences between fossil and modern data and the addition of recently available palaeontological information influence understanding of the current extinction crisis, and results confirm that current extinction rates are higher than would be expected from the fossil record.
Timing of Quaternary megafaunal extinction in South America in relation to human arrival and climate change
Combination of humans, climate, and vegetation change triggered Late Quaternary megafauna extinction in the Última Esperanza region, southern Patagonia, Chile
South America lost around 52 genera of mammals during a worldwide event known as the Late Quaternary Extinction episode. More than 80% of South American mammals weighing > 44 kg succumbed. Analysis…
Merging paleobiology with conservation biology to guide the future of terrestrial ecosystems
Conservation efforts are currently in a state of transition, with active debate about the relative importance of preserving historical landscapes with minimal human impact on one end of the ideological spectrum versus manipulating novel ecosystems that result from human activities on the other.
Variable impact of late-Quaternary megafaunal extinction in causing ecological state shifts in North and South America
- A. Barnosky, E. Lindsey, C. Marshall
- Environmental ScienceProceedings of the National Academy of Sciences
- 26 October 2015
Findings help in identifying modern ecosystems that are most at risk for disappearing should current pressures on the ecosystems’ large animals continue and highlight the critical role of both individual species ecologies and ecosystem context in predicting the lasting impacts of defaunation currently underway.
Tanque Loma, a new late-Pleistocene megafaunal tar seep locality from southwest Ecuador
The changing role of mammal life histories in Late Quaternary extinction vulnerability on continents and islands
- S. K. Lyons, Joshua H Miller, A. Mychajliw
- Environmental Science, GeographyBiology Letters
- 1 June 2016
Using phylogenetic regression and classification trees, it is found that while life-history traits are poor predictors of historic extinctions, those associated with difficulty in responding quickly to perturbations, such as small litter size, are good predictor of prehistoric extinctions.
Campo Laborde: A Late Pleistocene giant ground sloth kill and butchering site in the Pampas
- G. Politis, Pablo G. Messineo, T. Stafford, E. Lindsey
- Geology, GeographyScience Advances
- 1 March 2019
The new data offer definitive evidence for hunting and butchering of Megatherium americanum (giant ground sloth) at 12,600 cal years BP and dispute previous interpretations that Pleistocene megamammals survived into the Holocene in the Pampas.
Influence of biogenic habitat on the recruitment and distribution of a subtidal xanthid crab
The role played by bio- genic habitats (Mytilus edulis and Crepidula spp. beds) in influencing the subtidal distribution of the mud crab Dyspanopeus sayi in Narragansett Bay, New England is investigated.
Micro Methods for Megafauna: Novel Approaches to Late Quaternary Extinctions and Their Contributions to Faunal Conservation in the Anthropocene
This article highlights how developments in five methodologies (radiocarbon approaches, stable isotope analysis, ancient DNA, ancient proteomics, microscopy) have helped drive detailed analysis of specific megafaunal species, their particular ecological settings, and responses to new competitors or predators, climate change, and other external phenomena.