sh.sePublikationer
Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • harvard-anglia-ruskin-university
  • apa-old-doi-prefix.csl
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Vegetation succession in savanna determined by interaction of grazing, browsing and fire; a comparison between hypotheses.
Södertörns högskola, Institutionen för livsvetenskaper.
2005 (Engelska)Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats
Abstract [en]

Studies in tropical regions have shown that trees and grasses respond differently to fire, grazing and browsing. In African savannas, the responses to fire, grazing and browsing are different, determined by negative or positive correlations. Browsing may have other consequences than grazing because instead of increasing woody biomass it reduces it, causing increase in grass growth, leading to increase in fuel that results in more intense fires and decrease in woody biomass. Fire and herbivory are an important interactive disturbance factors affecting vegetation succession and the tree-grass dynamics in savanna environment. Several of the fire-herbivory interactions are landscape level effects, which is shown in 2 models. My hypothesis is that the tree-grass balances are determined by interactions of both grazing and fire. There have come new scientific data about fire and herbivory and the interaction effects on tree-grass dynamic and succession in the savanna. By analyzing my hypothesis through a comparison between hypotheses, Intermediate disturbance hypothesis, Janzen-Connell hypothesis and the Huston hypothesis, I propose several scenarios of the savanna tree-grass dynamics in East Africa, as a result of this comparison.

Ort, förlag, år, upplaga, sidor
Huddinge: Institutionen för kemi, biologi, geografi och miljövetenskap , 2005. , s. 26
Nyckelord [en]
Fire, herbivory, interaction, tree-grass dynamics, vegetation succession
Nationell ämneskategori
Biologiska vetenskaper
Identifikatorer
URN: urn:nbn:se:sh:diva-307OAI: oai:DiVA.org:sh-307DiVA, id: diva2:15995
Uppsök
bio-/geovetenskap
Handledare
Examinatorer
Tillgänglig från: 2005-08-26 Skapad: 2005-08-26

Open Access i DiVA

fulltext(235 kB)4905 nedladdningar
Filinformation
Filnamn FULLTEXT01.pdfFilstorlek 235 kBChecksumma MD5
a314c83b0ed80cbf33f61d15cccf0ff484d2cc5cf384a5d28768be7153bd932ceee409e7
Typ fulltextMimetyp application/pdf

Av organisationen
Institutionen för livsvetenskaper
Biologiska vetenskaper

Sök vidare utanför DiVA

GoogleGoogle Scholar
Totalt: 4905 nedladdningar
Antalet nedladdningar är summan av nedladdningar för alla fulltexter. Det kan inkludera t.ex tidigare versioner som nu inte längre är tillgängliga.

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 617 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • harvard-anglia-ruskin-university
  • apa-old-doi-prefix.csl
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf