Differential seeding and regeneration in openings and beneath closed canopy in sub-tropical wet forest

TitleDifferential seeding and regeneration in openings and beneath closed canopy in sub-tropical wet forest
Publication TypeThesis
Year of Publication1989
AuthorsDevoe, NN
DegreePhD
Number of Pages307
UniversityYale School of Forestry and Environmental Science
Accession NumberLUQ.134
Keywordsseed GERMINATION
Abstract

Two experiments were performed in sub-tropical wet forest (tabonuco (Dacryodes excelsa) type) at El Verde, Puerto Rico. The first compared seed rain beneath closed canopy with that in natural treefall gaps. The purpose was to determine whether differences in seed rain might account for some part of the reported difference in tree regeneration under the two canopy conditions. The second experiment examined regeneration along transects from beneath the forest canopy across large gaps. Plant colonization patterns clearly showed that gaps are non-uniform environments. The correlation of certain attributes (seed weight, dispersal mode, regeneration route, shade tolerance) within species and among groups of species led to the description of regeneration strategies for species in this and similar forest communities. Silvicultural applications are discussed. 33 figs., 33 tabs.

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