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Quaternary megafauna extinctions linked to humans (free pdf)



From: Ben Creisler
bcreisler@gmail.com

Another study (in open access) on the connection of humans to
megafauna extinctions:

Christopher Sandom, Søren Faurby, Brody Sandel, and Jens-Christian Svenning
Global late Quaternary megafauna extinctions linked to humans, not
climate change.
Proceeding of Royal Society B 22 July 2014 281(1787 20133254)
doi:  10.1098/rspb.2013.3254
http://rspb.royalsocietypublishing.org/content/281/1787/20133254.abstract

The late Quaternary megafauna extinction was a severe global-scale
event. Two factors, climate change and modern humans, have received
broad support as the primary drivers, but their absolute and relative
importance remains controversial. To date, focus has been on the
extinction chronology of individual or small groups of species,
specific geographical regions or macroscale studies at very coarse
geographical and taxonomic resolution, limiting the possibility of
adequately testing the proposed hypotheses. We present, to our
knowledge, the first global analysis of this extinction based on
comprehensive country-level data on the geographical distribution of
all large mammal species (more than or equal to 10 kg) that have gone
globally or continentally extinct between the beginning of the Last
Interglacial at 132 000 years BP and the late Holocene 1000 years BP,
testing the relative roles played by glacial–interglacial climate
change and humans. We show that the severity of extinction is strongly
tied to hominin palaeobiogeography, with at most a weak,
Eurasia-specific link to climate change. This first species-level
macroscale analysis at relatively high geographical resolution
provides strong support for modern humans as the primary driver of the
worldwide megafauna losses during the late Quaternary.


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http://phys.org/news/2014-06-ice-age-extinctions-large-mammals-linked.html