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Journal Article
JA0614-15
Article TitleRiparian Ficus Tree Communities: The Distribution and Abundance of Riparian Fig Trees in Northern Thailand
AuthorPornwiwan Pothasin, Stephen G. Compton and Prasit Wangpakapattanawong
Year2014
Journal TitlePLoS ONE
Volume9
Issue10
Pages1-10
Call NumberJA0614-15
Abstract:
Fig trees (Ficus) are often ecologically significant keystone species because they sustain populations of the many seeddispersing animals that feed on their fruits. They are prominent components of riparian zones where they may also contribute to bank stability as well as supporting associated animals. The diversity and distributions of riparian fig trees in deciduous and evergreen forests in Chiang Mai Province, Northern Thailand were investigated in 2010–2012. To record the diversity and abundance of riparian fig trees, we (1) calculated stem density, species richness, and diversity indices in 20650 m randomly selected quadrats along four streams and (2) measured the distances of individual trees from four streams to determine if species exhibit distinct distribution patterns within riparian zones. A total of 1169 individuals (from c. 4 ha) were recorded in the quadrats, representing 33 Ficus species (13 monoecious and 20 dioecious) from six sub-genera and about 70% of all the species recorded from northern Thailand. All 33 species had at least some stems in close proximity to the streams, but they varied in their typical proximity, with F. squamosa Roxb. And F. ischnopoda Miq the most strictly stream-side species. The riparian forests in Northern Thailand support a rich diversity and high density of Ficus species and our results emphasise the importance of fig tree within the broader priorities of riparian area conservation. Plans to maintain or restore properly functioning riparian forests need to take into account their significance
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