Ecological knowledge of regeneration from seed in neotropical forest trees: Implications for natural forest management

M R Guariguata, M A Pinard

Research output: Contribution to journalLiterature review

95 Citations (Scopus)

Abstract

We discuss the main ecological factors that influence tree recruitment in neotropical moist- and wet forests within the context of timber management based on selective logging. We argue that setting aside protection areas in managed forests as a way to preserve ecological processes may not be sufficient to ensure sustainable levels of tree regeneration, and that a thorough understanding and application of tree seed ecology can help to refine management prescriptions. We review relevant aspects of tree reproductive biology seed production and dispersal, spatial and temporal constraints on seed availability, disperser behavior, and the potential consequences of hunting and forest fragmentation on tree regeneration, and discuss their implications for biological sustainability in managed forests. Tree seed production can be influenced by the selective removal of neighbors of the same species (due to insufficient pollen transfer), flowering asynchrony, and attributes of the species' sexual system. The extent to which an area is supplied by seed can be affected by dispersal mechanism, spatio-temporal limitations to seed dispersal, and tree size-dependent levels of seed production at the species level. Studies of vertebrate-disperser behavior and tree seed deposition in logged forests are scarce and warrant further attention in order to refine our understanding of the dependency of sustained timber production on vertebrate fauna. Although much remains to be learned about tree seed ecology in neotropical logged forests, the baseline information presented here may offer a starting point for developing ecological criteria for seed tree retention. Furthermore, it may contribute in improving ecologically-based management prescriptions in order to enhance or at least maintain sufficient levels of natural regeneration without the need to rely on artificial regeneration. (C) 1998 Elsevier Science B.V. All rights reserved.

Original languageEnglish
Pages (from-to)87-99
Number of pages13
JournalForest Ecology and Management
Volume112
Publication statusPublished - 1998

Keywords

  • seed dispersal
  • natural forest management
  • pollination
  • phenology
  • logging
  • hunting
  • neotropics
  • seed trees
  • tropical forest
  • TROPICAL RAIN-FOREST
  • MONKEYS ALOUATTA-SENICULUS
  • BARRO-COLORADO ISLAND
  • FRENCH-GUIANA
  • TREEFALL GAPS
  • COSTA-RICA
  • VOUACAPOUA-AMERICANA
  • VIROLA-SURINAMENSIS
  • DISPERSAL DISTANCE
  • UNDERSTORY BIRDS

Cite this

Ecological knowledge of regeneration from seed in neotropical forest trees: Implications for natural forest management. / Guariguata, M R ; Pinard, M A .

In: Forest Ecology and Management, Vol. 112, 1998, p. 87-99.

Research output: Contribution to journalLiterature review

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AB - We discuss the main ecological factors that influence tree recruitment in neotropical moist- and wet forests within the context of timber management based on selective logging. We argue that setting aside protection areas in managed forests as a way to preserve ecological processes may not be sufficient to ensure sustainable levels of tree regeneration, and that a thorough understanding and application of tree seed ecology can help to refine management prescriptions. We review relevant aspects of tree reproductive biology seed production and dispersal, spatial and temporal constraints on seed availability, disperser behavior, and the potential consequences of hunting and forest fragmentation on tree regeneration, and discuss their implications for biological sustainability in managed forests. Tree seed production can be influenced by the selective removal of neighbors of the same species (due to insufficient pollen transfer), flowering asynchrony, and attributes of the species' sexual system. The extent to which an area is supplied by seed can be affected by dispersal mechanism, spatio-temporal limitations to seed dispersal, and tree size-dependent levels of seed production at the species level. Studies of vertebrate-disperser behavior and tree seed deposition in logged forests are scarce and warrant further attention in order to refine our understanding of the dependency of sustained timber production on vertebrate fauna. Although much remains to be learned about tree seed ecology in neotropical logged forests, the baseline information presented here may offer a starting point for developing ecological criteria for seed tree retention. Furthermore, it may contribute in improving ecologically-based management prescriptions in order to enhance or at least maintain sufficient levels of natural regeneration without the need to rely on artificial regeneration. (C) 1998 Elsevier Science B.V. All rights reserved.

KW - seed dispersal

KW - natural forest management

KW - pollination

KW - phenology

KW - logging

KW - hunting

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KW - seed trees

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KW - TROPICAL RAIN-FOREST

KW - MONKEYS ALOUATTA-SENICULUS

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KW - VIROLA-SURINAMENSIS

KW - DISPERSAL DISTANCE

KW - UNDERSTORY BIRDS

M3 - Literature review

VL - 112

SP - 87

EP - 99

JO - Forest Ecology and Management

JF - Forest Ecology and Management

SN - 0378-1127

ER -