New Forests

, Volume 20, Issue 1, pp 45–64 | Cite as

Comparative regeneration ecology of three leguminous timber species in a Bolivian tropical dry forest

  • T.S. Fredericksen
  • M.J. Justiniano
  • B. Mostacedo
  • D. Kennard
  • L. McDonald
Article

Abstract

A comparative study of the regeneration ecology ofthree lesser-known leguminous timber species wasconducted in the seasonally dry forests of SantaCruz, Bolivia to determine species regenerationstrategies and make silvicultural recommendationsfor these species. The study included arepresentative from each subfamily of Leguminosae:Anadenanthera colubrina (Vell. Conc.) Benth.(Mimosaceae), Copaifera chodatiana Kunth.(Caesalpinaceae), and Centrolobium microchaeteC. Martius (Fabaceae). After production in themid-late dry season, seeds of all species sufferedhigh (>30%) rates of predation. For seedssurviving predation, Anadenanthera germinatedwithin three days after the first rains and a highgermination capacity (82%), but most seedlings diedfrom inadequate light or during subsequent periodsof drought. Copaifera germinated more slowlybut had high germination capacity (85%). Centrolobium had very low germination capacity(4%) and germinative energy. Most successfulregeneration of Centrolobium occurred viasprouting from damaged roots on or near loggingroads where it had a density of 261 root sprouts/ha.Anadenanthera regenerated best from seedin areas with soil disturbance or burning. Theregeneration of these species will likely increaseunder more intensive logging and/or post-harvestcompetition control treatments in logging gaps. Themore shade-tolerant Copaifera is most suitedto the current regime of light selective logging,but all three species are likely to be responsive topost-harvest competition control treatments. Impacts of controlled and natural fire were mixed,but generally seedling regeneration and growth wereeither not significantly affected or were increasedby fire.

Anadenanthera Bolivia Centrolobium Copaifera regeneration tropical dry forests 

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Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • T.S. Fredericksen
    • 1
  • M.J. Justiniano
    • 1
  • B. Mostacedo
    • 1
  • D. Kennard
    • 1
  • L. McDonald
    • 1
  1. 1.Proyecto BOLFORSanta CruzBolivia

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