Has the Earth's Sixth Mass Extinction Already Arrived?. Barnosky, A. D.; Matzke, N.; Tomiya, S.; Wogan, G. O. U.; Swartz, B.; Quental, T. B.; Marshall, C.; McGuire, J. L.; Lindsey, E. L.; Maguire, K. C.; Mersey, B.; and Ferrer, E. A. 471(7336):51–57.
Has the Earth's Sixth Mass Extinction Already Arrived? [link]Paper  doi  abstract   bibtex   
Palaeontologists characterize mass extinctions as times when the Earth loses more than three-quarters of its species in a geologically short interval, as has happened only five times in the past 540million years or so. Biologists now suggest that a sixth mass extinction may be under way, given the known species losses over the past few centuries and millennia. Here we review how differences between fossil and modern data and the addition of recently available palaeontological information influence our understanding of the current extinction crisis. Our results confirm that current extinction rates are higher than would be expected from the fossil record, highlighting the need for effective conservation measures.
@article{barnoskyHasEarthSixth2011,
  title = {Has the {{Earth}}'s Sixth Mass Extinction Already Arrived?},
  author = {Barnosky, Anthony D. and Matzke, Nicholas and Tomiya, Susumu and Wogan, Guinevere O. U. and Swartz, Brian and Quental, Tiago B. and Marshall, Charles and McGuire, Jenny L. and Lindsey, Emily L. and Maguire, Kaitlin C. and Mersey, Ben and Ferrer, Elizabeth A.},
  date = {2011-03},
  journaltitle = {Nature},
  volume = {471},
  pages = {51--57},
  issn = {0028-0836},
  doi = {10.1038/nature09678},
  url = {https://doi.org/10.1038/nature09678},
  abstract = {Palaeontologists characterize mass extinctions as times when the Earth loses more than three-quarters of its species in a geologically short interval, as has happened only five times in the past 540million years or so. Biologists now suggest that a sixth mass extinction may be under way, given the known species losses over the past few centuries and millennia. Here we review how differences between fossil and modern data and the addition of recently available palaeontological information influence our understanding of the current extinction crisis. Our results confirm that current extinction rates are higher than would be expected from the fossil record, highlighting the need for effective conservation measures.},
  keywords = {*imported-from-citeulike-INRMM,~INRMM-MiD:c-8924265,anthropocene,anthropogenic-impacts,global-change,species-extinction},
  number = {7336}
}
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