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ABSTRACT:

Liana-tree species associations in a Bolivian dry forest

Journal Article

Carse L; Fredericksen T; Licona J

‚Äč

2000

Tropical Ecology

41

40553

Associations between tree species and degree of woody liana colonization were identified and the mechanisms explaining these relationships were investigated in a dry forest in eastern Bolivia. For 3158 individual trees >20 cm in diameter representing 72 tree species 77% had at least 1 liana. Of the total number of trees colonized by lianas 35% of trees had lianas totally covering their crowns 37% had lianas within the crowns but not covering them and 28% had lianas only on their boles. Based on natural tree species abundances the tree species Anadenanthera colubrina and Attalea phalerata had significantly lower colonization rates than expected whereas Neea hermaphrodita was the only species having significantly more liana-colonized individuals than expected. Ranks were assigned for each tree species according to morphological and physiological features thought to facilitate or inhibit liana establishment (shedding of branches or large branch like leaves rate of bark exfoliation bark texture stem flexibility and branch-free bole height) in an attempt to explain relative differences in liana colonization among species. Only shedding of branches or large compound leaves was negatively correlated with the proportion of liana-infested trees.

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Support

The Liana Ecology Project is supported by Marquette University and funded in part by the National Science Foundation.