Estimates of Clovis-Era Megafaunal Populations and Their Extinction Risks

  title={Estimates of Clovis-Era Megafaunal Populations and Their Extinction Risks},
  author={Gary Haynes},
In order to evaluate the contribution that Clovis-era hunting made to the end-Pleistocene extinctions, we must examine the North American empirical evidence fairly, without using models from different continents and different taxa as blueprints for the process of human hunting impacts. Before trying to decide how (or if) Clovis hunting could have had a significant effect on American megamammal extinctions,1 a worthwhile thing to know or estimate is the size of the continental populations of… 

Pleistocene Overkill and North American Mammalian Extinctions

Clovis groups in Late Pleistocene North America occasionally hunted several now extinct large mammals. But whether their hunting drove 37 genera of animals to extinction has been disputed, largely

Late Pleistocene proboscidean population dynamics in the North American Midcontinent

Large-scale, collections-based, chronological and taphonomic analyses of midwestern Proboscidea suggest divergent population histories in mammoths and mastodons after the Last Glacial Maximum, suggesting this pattern is due to the collapse of trophic controls on proboscidean populations prior to the LGM and a subsequent system-wide shift from top-down to bottom-up regulatory mechanisms in Proboscidesa.

Were human-introduced diseases the responsible for Pleistocene-Holocene megafaunal extinctions? First evidence from South America

Diverse hypotheses have been proposed with the aim to explain the extinction of Late Pleistocene/Holocene mammals, including the Megafauna from America. Some authors support that human being was the

The Clovis Occupation of the Dietz Site (35LK1529), Lake County, Oregon, and its Bearing on the Adaptive Diversity of Clovis Foragers

  • A. Pinson
  • Environmental Science
    American Antiquity
  • 2011
Archaeological models of Clovis adaptations are divided between those that argue for a single hunting adaptation characterized by high residential mobility without fixed territories and those that

New World proboscidean extinctions: comparisons between North and South America

In South America, generally accepted dates place humans in coastal Chile and Patagonia ca. 13,000 BP and sites no older than ca. 11,000 BP are common in other areas. Gomphotheres become extinct in

Extinction, climate change and the ecology of Homo sapiens

  • D. Tilman
  • Environmental Science
    Journal of Ecology
  • 2021
Because of human domination, the world faces two major environmental problems—species extinctions and climate change. The still‐elusive solutions to these global problems must address interlinked



A Multispecies Overkill Simulation of the End-Pleistocene Megafaunal Mass Extinction

  • J. Alroy
  • Environmental Science
  • 2001
A computer simulation of North American end-Pleistocene human and large herbivore population dynamics correctly predicts the extinction or survival of 32 out of 41 prey species. Slow human population

Simulating Mammoth Hunting and Extinction: Implications for the Late Pleistocene of the Central Russian Plain

  • S. Mithen
  • Environmental Science, Geography
  • 1993
Mammoths were an important resource for Upper Palaeolithic hunter-gatherers. Their remains are frequently found in faunal assemblages, their bones were used for the construction of dwellings, and

Determinants of loss of mammal species during the Late Quaternary ‘megafauna’ extinctions: life history and ecology, but not body size

  • C. Johnson
  • Environmental Science
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 2002
This analysis shows two general features of the selectivity of Late Quaternary mammal extinctions in Australia, Eurasia, the Americas and Madagascar that are consistent with extinctions being due to interaction with human populations.

North American Proboscideans: Mammoths: The state of Knowledge, 2003

Clovis Hunting Strategies, or How to Make out on Plentiful Resources

Traditionally, hunter-gatherers of the Clovis period have been characterized as specialized hunters of large terrestrial mammals. Recent critiques have attempted to upend this position both

Where Have All the Mammoth Gone?

The Early Settlement of North America The Clovis Era. Gary Haynes. Cambridge University Press, Cambridge, 2002. 359 pp. $80, £60. ISBN 0-521-81900-8. Paper, $29, £21.95. ISBN 0-521-52463-6. After

Redefining the Age of Clovis: Implications for the Peopling of the Americas

The Clovis complex is considered to be the oldest unequivocal evidence of humans in the Americas, dating between 11,500 and 10,900 radiocarbon years before the present (14C yr B.P.). Adjusted 14C

Extinctions in near time : causes, contexts, and consequences

1 * Cretaceous Meteor Showers, the Human Ecological "Niche," and the Sixth Extinction.- 2 * Prehistoric Extinctions on Islands and Continents.- 3 * The Interaction of Humans, Megaherbivores, and

Quaternary extinctions : a prehistoric revolution

What caused the extinction of so many animals at or near the end of the Pleistocene? Was it overkill by human hunters, the result of a major climatic change or was it just a part of some massive