Cross-boundary human impacts compromise the Serengeti-Mara ecosystem

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dc.contributor.author Veldhuis, Michiel P.
dc.contributor.author Ritchie, Mark E.
dc.contributor.author Ogutu, Joseph O.
dc.contributor.author Morrison, Thomas A.
dc.contributor.author Beale, Colin M.
dc.contributor.author Estes, Anna B.
dc.contributor.author Mwakilema, William
dc.contributor.author Ojwang, Gordon O.
dc.contributor.author Parr, Catherine Lucy
dc.contributor.author Probert, James
dc.contributor.author Wargute, Patrick W.
dc.contributor.author Hopcraft, J. Grant C.
dc.contributor.author Olff, Han
dc.date.accessioned 2019-08-12T12:19:52Z
dc.date.available 2019-08-12T12:19:52Z
dc.date.issued 2019
dc.description Supplementary Materials: Supplementary Text; Figs. S1 to S31; Tables S1 to S9; References (48–82) en_ZA
dc.description.abstract Protected areas provide major benefits for humans in the form of ecosystem services, but landscape degradation by human activity at their edges may compromise their ecological functioning. Using multiple lines of evidence from 40 years of research in the Serengeti-Mara ecosystem, we find that such edge degradation has effectively “squeezed” wildlife into the core protected area and has altered the ecosystem’s dynamics even within this 40,000-square-kilometer ecosystem. This spatial cascade reduced resilience in the core and was mediated by the movement of grazers, which reduced grass fuel and fires, weakened the capacity of soils to sequester nutrients and carbon, and decreased the responsiveness of primary production to rainfall. Similar effects in other protected ecosystems worldwide may require rethinking of natural resource management outside protected areas. en_ZA
dc.description.department Zoology and Entomology en_ZA
dc.description.librarian hj2019 en_ZA
dc.description.uri http://www.sciencemag.org en_ZA
dc.identifier.citation Veldhuis, M.P., Ritchie, M.E., Ogutu, J.O. et al. 2019, 'Cross-boundary human impacts compromise the Serengeti-Mara ecosystem', Science, vol. 363, no. 6434, pp. 1424-1428. en_ZA
dc.identifier.issn 0036-8075 (print)
dc.identifier.issn 1095-9203 (online)
dc.identifier.other 10.1126/science.aav0564
dc.identifier.uri http://hdl.handle.net/2263/71058
dc.language.iso en en_ZA
dc.publisher American Association for the Advancement of Science en_ZA
dc.rights © 2019 American Association for the Advancement of Science. All Rights Reserved. en_ZA
dc.subject Carbon en_ZA
dc.subject Rain en_ZA
dc.subject Anthropogenic effect en_ZA
dc.subject Ecosystem dynamics en_ZA
dc.subject Ecosystem resilience en_ZA
dc.subject Ecosystem service en_ZA
dc.subject Human activity en_ZA
dc.subject Natural resource en_ZA
dc.subject Primary production en_ZA
dc.subject Protected area en_ZA
dc.subject Rainfall en_ZA
dc.subject Resource management en_ZA
dc.subject Carbon sequestration en_ZA
dc.subject Environmental impact en_ZA
dc.subject Environmental protection en_ZA
dc.title Cross-boundary human impacts compromise the Serengeti-Mara ecosystem en_ZA
dc.type Postprint Article en_ZA


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