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LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00005909naa a2200565 4500
001oai:DiVA.org:uu-396145
003SwePub
008191111s2019 | |||||||||||000 ||eng|
0247 a https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-3961452 URI
0247 a https://doi.org/10.1111/gcb.147112 DOI
040 a (SwePub)uu
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
1001 a Probert, James R.u Univ Liverpool, Dept Earth Ocean & Ecol Sci, Liverpool L69 3GP, Merseyside, England4 aut
2451 0a Anthropogenic modifications to fire regimes in the wider Serengeti-Mara ecosystem
264 c 2019-07-08
264 1b WILEY,c 2019
338 a electronic2 rdacarrier
520 a Fire is a key driver in savannah systems and widely used as a land management tool. Intensifying human land uses are leading to rapid changes in the fire regimes, with consequences for ecosystem functioning and composition. We undertake a novel analysis describing spatial patterns in the fire regime of the Serengeti-Mara ecosystem, document multidecadal temporal changes and investigate the factors underlying these patterns. We used MODIS active fire and burned area products from 2001 to 2014 to identify individual fires; summarizing four characteristics for each detected fire: size, ignition date, time since last fire and radiative power. Using satellite imagery, we estimated the rate of change in the density of livestock bomas as a proxy for livestock density. We used these metrics to model drivers of variation in the four fire characteristics, as well as total number of fires and total area burned. Fires in the Serengeti-Mara show high spatial variability-with number of fires and ignition date mirroring mean annual precipitation. The short-term effect of rainfall decreases fire size and intensity but cumulative rainfall over several years leads to increased standing grass biomass and fuel loads, and, therefore, in larger and hotter fires. Our study reveals dramatic changes over time, with a reduction in total number of fires and total area burned, to the point where some areas now experience virtually no fire. We suggest that increasing livestock numbers are driving this decline, presumably by inhibiting fire spread. These temporal patterns are part of a global decline in total area burned, especially in savannahs, and we caution that ecosystem functioning may have been compromised. Land managers and policy formulators need to factor in rapid fire regime modifications to achieve management objectives and maintain the ecological function of savannah ecosystems.
650 7a LANTBRUKSVETENSKAPERx Lantbruksvetenskap, skogsbruk och fiskex Skogsvetenskap0 (SwePub)401042 hsv//swe
650 7a AGRICULTURAL SCIENCESx Agriculture, Forestry and Fisheriesx Forest Science0 (SwePub)401042 hsv//eng
650 7a NATURVETENSKAPx Geovetenskap och miljövetenskapx Klimatforskning0 (SwePub)105012 hsv//swe
650 7a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Climate Research0 (SwePub)105012 hsv//eng
653 a conservation
653 a fire regime
653 a management
653 a overgrazing
653 a protected areas
653 a savannah
653 a Serengeti
7001 a Parr, Catherine L.u Univ Liverpool, Dept Earth Ocean & Ecol Sci, Liverpool L69 3GP, Merseyside, England;Univ Witwatersrand, Ctr African Ecol, Sch Anim Plant & Environm Sci, Johannesburg, South Africa;Univ Pretoria, Dept Zool & Entomol, Pretoria, South Africa4 aut
7001 a Holdo, Ricardo M.u Univ Witwatersrand, Ctr African Ecol, Sch Anim Plant & Environm Sci, Johannesburg, South Africa;Univ Georgia, Odum Sch Ecol, Athens, GA 30602 USA4 aut
7001 a Anderson, T. Michaelu Wake Forest Univ, Dept Biol, Winston Salem, NC 27109 USA4 aut
7001 a Archibald, Sallyu Univ Witwatersrand, Ctr African Ecol, Sch Anim Plant & Environm Sci, Johannesburg, South Africa;CSIR, Nat Resources & Environm, Pretoria, South Africa4 aut
7001 a Mustaphi, Colin J. Courtneyu Uppsala universitet,Institutionen för arkeologi och antik historia,Univ Basel, Dept Environm Sci, Geoecol, Basel, Switzerland;Univ York, York Inst Trop Ecosyst, Dept Environm, York, N Yorkshire, England4 aut
7001 a Dobson, Andrew P.u Princeton Univ, Ecol & Evolutionary Biol, Princeton, NJ 08544 USA4 aut
7001 a Donaldson, Jason E.u Univ Witwatersrand, Ctr African Ecol, Sch Anim Plant & Environm Sci, Johannesburg, South Africa4 aut
7001 a Hopcraft, Grant C.u Univ Glasgow, Inst Biodivers Anim Hlth & Comparat Med, Glasgow, Lanark, Scotland4 aut
7001 a Hempson, Gareth P.u Univ Witwatersrand, Ctr African Ecol, Sch Anim Plant & Environm Sci, Johannesburg, South Africa;SAEON, Ndlovu Node, Phalaborwa, South Africa4 aut
7001 a Morrison, Thomas A.u Univ Glasgow, Inst Biodivers Anim Hlth & Comparat Med, Glasgow, Lanark, Scotland4 aut
7001 a Beale, Colin M.u Univ York, Dept Biol, York, N Yorkshire, England4 aut
7102 a Univ Liverpool, Dept Earth Ocean & Ecol Sci, Liverpool L69 3GP, Merseyside, Englandb Univ Liverpool, Dept Earth Ocean & Ecol Sci, Liverpool L69 3GP, Merseyside, England;Univ Witwatersrand, Ctr African Ecol, Sch Anim Plant & Environm Sci, Johannesburg, South Africa;Univ Pretoria, Dept Zool & Entomol, Pretoria, South Africa4 org
7730 t Global Change Biologyd : WILEYg 25:10, s. 3406-3423q 25:10<3406-3423x 1354-1013x 1365-2486
8564 u https://doi.org/10.1111/gcb.14711y Fulltext
8564 u https://uu.diva-portal.org/smash/get/diva2:1369271/FULLTEXT01.pdfx primaryx Raw objecty fulltext:print
8564 u https://onlinelibrary.wiley.com/doi/pdfdirect/10.1111/gcb.14711
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-396145
8564 8u https://doi.org/10.1111/gcb.14711

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