Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/287
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dc.contributor.authorvan Langevelde, Fen
dc.contributor.authorvan de Vijver, CADMen
dc.contributor.authorPrins, HHTen
dc.contributor.authorRietkerk, Men
dc.contributor.authorKumar, Len
dc.contributor.authorvan de Koppel, Jen
dc.contributor.authorde Ridder, Nen
dc.contributor.authorvan Andel, Jen
dc.contributor.authorSkidmore, Aen
dc.contributor.authorHearne, JWen
dc.contributor.authorStroosnijder, Len
dc.contributor.authorBond, WJen
dc.date.accessioned2008-05-13T11:15:00Z-
dc.date.issued2003-
dc.identifier.citationEcology, 84(2), p. 337-350en
dc.identifier.issn1939-9170en
dc.identifier.issn0012-9658en
dc.identifier.urihttps://hdl.handle.net/1959.11/287-
dc.description.abstractSavanna ecosystems are characterized by the co-occurrence of trees and grasses. In this paper, we argue that the balance between trees and grasses is, to a large extent, determined by the indirect interactive effects of herbivory and fire. These effects are based on the positive feedback between fuel load (grass biomass) and fire intensity. An increase in the level of grazing leads to reduced fuel load, which makes fire less intense and, thus, less damaging to trees and, consequently, results in an increase in woody vegetation. The system then switches from a state with trees and grasses to a state with solely trees. Similarly, browsers may enhance the effect of fire on trees because they reduce woody biomass, thus indirectly stimulating grass growth. This consequent increase in fuel load results in more intense fire and increased decline of biomass. The system then switches from a state with solely trees to a state with trees and grasses. We maintain that the interaction between fire and herbivory provides a mechanistic explanation for observed discontinuous changes in woody and grass biomass. This is an alternative for the soil degradation mechanism, in which there is a positive feedback between the amount of grass biomass and the amount of water that infiltrates into the soil. The soil degradation mechanism predicts no discontinuous changes, such as bush encroachment, on sandy soils. Such changes, however, are frequently observed. Therefore, the interactive effects of fire and herbivory provide a more plausible explanation for the occurrence of discontinuous changes in savanna ecosystems.en
dc.languageenen
dc.publisherJohn Wiley & Sons, Incen
dc.relation.ispartofEcologyen
dc.titleEffects of Fire and Herbivory on the Stability of Savanna Ecosystemsen
dc.typeJournal Articleen
dc.identifier.doi10.1890/0012-9658(2003)084[0337:EOFAHO]2.0.CO;2en
dc.subject.keywordsEnvironmental Rehabilitation (excl Bioremediation)en
local.contributor.firstnameFen
local.contributor.firstnameCADMen
local.contributor.firstnameHHTen
local.contributor.firstnameMen
local.contributor.firstnameLen
local.contributor.firstnameJen
local.contributor.firstnameNen
local.contributor.firstnameJen
local.contributor.firstnameAen
local.contributor.firstnameJWen
local.contributor.firstnameLen
local.contributor.firstnameWJen
local.subject.for2008050207 Environmental Rehabilitation (excl Bioremediation)en
local.subject.seo770805 Integrated (ecosystem) assessment and managementen
local.profile.schoolSchool of Environmental and Rural Scienceen
local.profile.emaillkumar@une.edu.auen
local.output.categoryC1en
local.record.placeauen
local.record.institutionUniversity of New Englanden
local.identifier.epublicationsrecordpes:3461en
local.publisher.placeUnited States of Americaen
local.format.startpage337en
local.format.endpage350en
local.peerreviewedYesen
local.identifier.volume84en
local.identifier.issue2en
local.contributor.lastnamevan Langeveldeen
local.contributor.lastnamevan de Vijveren
local.contributor.lastnamePrinsen
local.contributor.lastnameRietkerken
local.contributor.lastnameKumaren
local.contributor.lastnamevan de Koppelen
local.contributor.lastnamede Ridderen
local.contributor.lastnamevan Andelen
local.contributor.lastnameSkidmoreen
local.contributor.lastnameHearneen
local.contributor.lastnameStroosnijderen
local.contributor.lastnameBonden
dc.identifier.staffune-id:lkumaren
local.profile.orcid0000-0002-9205-756Xen
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.profile.roleauthoren
local.identifier.unepublicationidune:289en
dc.identifier.academiclevelAcademicen
local.title.maintitleEffects of Fire and Herbivory on the Stability of Savanna Ecosystemsen
local.output.categorydescriptionC1 Refereed Article in a Scholarly Journalen
local.search.authorvan Langevelde, Fen
local.search.authorvan de Vijver, CADMen
local.search.authorPrins, HHTen
local.search.authorRietkerk, Men
local.search.authorKumar, Len
local.search.authorvan de Koppel, Jen
local.search.authorde Ridder, Nen
local.search.authorvan Andel, Jen
local.search.authorSkidmore, Aen
local.search.authorHearne, JWen
local.search.authorStroosnijder, Len
local.search.authorBond, WJen
local.uneassociationUnknownen
local.year.published2003en
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