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Biodiversity, Fire, and Herbivory in Tropical Savannas

  • Bibiana Bilbao
  • Richard Braithwaite
  • Christiane Dall’Aglio
  • Adriana Moreira
  • Paulo E. Oliviera
  • José Felipe Ribeiro
  • Philip Stott
Part of the Ecological Studies book series (ECOLSTUD, volume 121)

Abstract

The main determinants of tropical savannas are plant available moisture (PAM) and plant available nutrients (PAN). Fire (F) and herbivory (H) are secondary determinants in a hierarchy of factors which produce the characteristics of any particular savanna (Solbrig 1991). While the biodiversity of a savanna area will be influenced by the biogeographic pool of species available to the region at any given time, the structure and productivity of the savanna are controlled by PAM and PAN, which in turn also influence biodiversity. Fire and herbivory then modify biodiversity directly through the mortality of individuals and indirectly through effects on the resources by individuals using different fuel types. Also biodiversity, through the range of food resource qualities and quantities, helps to determine the impact level of herbivory on the ecosystem.

Keywords

Fire Regime Fuel Load Fuel Mixture Dead Biomass Tropical Savanna 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Bilbao B (1995) Impacto del régimen de quemas en las características edaficas, producción de materia organica y biodiversidad de pastizales naturales en Calabozo, Venezuela. PhD Thesis, Instituto Venezolano de Investigaciones Cientificas, Caracas, VenezuelaGoogle Scholar
  2. Frost PGH, Robertson F (1987) The ecological effects of fire in savannas. In: Walker B. (ed) Determinants of tropical savannas. Monogr Issue 3:93–140, IUBSGoogle Scholar
  3. Philpot CW (1970) Influence of mineral content on the pyrolysis of plant materials. For Sci 16: 467–471Google Scholar
  4. Rachid-Edwards M (1956) Alguns dispositivos para protecao de plantas contra a seca e o fogo. Bol Fac Fil USP 209, Bot 13: 39–68Google Scholar
  5. Solbrig OT (ed) (1991) Savanna modeling for global change. Biol Int Spec Issue 24:1–45, IUBS, ParisGoogle Scholar
  6. Stott P (1986) The spatial pattern of dry season fires in the savanna forests of Thailand. J Biogeogr 13: 345–358CrossRefGoogle Scholar
  7. Trollope WSW (1978) Fire behavior, a preliminary study. Proceedings of the Grasslands Society of Southern Africa 13: 123–128CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1996

Authors and Affiliations

  • Bibiana Bilbao
  • Richard Braithwaite
  • Christiane Dall’Aglio
  • Adriana Moreira
  • Paulo E. Oliviera
  • José Felipe Ribeiro
  • Philip Stott

There are no affiliations available

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