Human predation contributed to the extinction of the Australian megafaunal bird Genyornis newtoni ~47 ka

Gifford Miller, John Magee, Michael Smith, Nigel Spooner, Alexander Baynes, Scott Lehman, Marilyn Fogel, Harvey Johnston, Doug Williams, Peter Clark, Christopher Florian, Richard Holst, Stephen DeVogel

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)

    Abstract

    Although the temporal overlap between human dispersal across Australia and the disappearance of its largest animals is well established, the lack of unambiguous evidence for human-megafauna interactions has led some to question a human role in megafaunal extinction. Here we show that diagnostic burn patterns on eggshell fragments of the megafaunal bird Genyornis newtoni, found at >200 sites across Australia, were created by humans discarding eggshell in and around transient fires, presumably made to cook the eggs. Dating by three methods restricts their occurrence to between 53.9 and 43.4 ka, and likely before 47 ka. Dromaius (emu) eggshell occur frequently in deposits from >100 ka to present; burnt Dromaius eggshell first appear in deposits the same age as those with burnt Genyornis eggshell, and then continually to modern time. Harvesting of their eggs by humans would have decreased Genyornis reproductive success, contributing to the bird's extinction by ∼47 ka.

    Original languageEnglish
    Article number10496
    Pages (from-to)Art: 10496
    Number of pages7
    JournalNature Communications
    Volume7
    DOIs
    Publication statusPublished - 2016

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