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  Ancient herders enriched and restructured African grasslands

Marshall, F., Reid, R. E. B., Goldstein, S., Storozum, M., Wreschnig, A., Hu, L., et al. (2018). Ancient herders enriched and restructured African grasslands. Nature, 561, 387-390. doi:10.1038/s41586-018-0456-9.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0002-0415-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-9432-D
Genre: Journal Article

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 Creators:
Marshall, Fiona, Author
Reid, Rachel E. B., Author
Goldstein, Steven1, Author              
Storozum, Michael, Author
Wreschnig, Andrew, Author
Hu, Lorraine, Author
Kiura, Purity, Author
Shahack-Gross, Ruth, Author
Ambrose, Stanley H., Author
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1Archaeology, Max Planck Institute for the Science of Human History, Max Planck Society, ou_2074312              

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 Abstract: Grasslands are one of the world’s most extensive terrestrial biomes and are central to the survival of herders, their livestock and diverse communities of large wild mammals1–3. In Africa, tropical soils are predominantly nutrient-limited4–6 but productive grassy patches in wooded grassland savannah ecosystems2,4 grow on fertile soils created by geologic and edaphic factors, megafauna, fire and termites4–6. Mobile pastoralists also create soil-fertility hotspots by penning their herds at night, which concentrates excrement—and thus nutrients—from grazing of the surrounding savannahs7–11. Historical anthropogenic hotspots produce high-quality forage, attract wildlife and increase spatial heterogeneity in African savannahs4,12–15. Archaeological research suggests this effect extends back at least 1,000 years16–19 but little is known about nutrient persistence at millennial scales. Here we use chemical, isotopic and sedimentary analyses to show high nutrient and 15N enrichment in on-site degraded dung deposits relative to off-site soils at five Pastoral Neolithic20 sites (radiocarbon dated to between 3,700 and 1,550 calibrated years before present (cal. bp)). This study demonstrates the longevity of nutrient hotspots and the long-term legacy of ancient herders, whose settlements enriched and diversified African savannah landscapes over three millennia.

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Language(s): eng - English
 Dates: 2018-08-29
 Publication Status: Published online
 Pages: 12
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: Other: shh1066
DOI: 10.1038/s41586-018-0456-9
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Title: Nature
  Abbreviation : Nature
Source Genre: Journal
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Publ. Info: London : Nature Publishing Group
Pages: - Volume / Issue: 561 Sequence Number: - Start / End Page: 387 - 390 Identifier: ISSN: 0028-0836
CoNE: /journals/resource/954925427238