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Plant-frugivore interactions in an intact tropical forest in north-east Thailand

Integrative Zoology 2011年第3期6卷 195-212页

作者： wangworn sankamethawee Andrew J.PIERCE George A.GALE Britta Denise HARDESTY Conservation Ecology Program School of Bioresources and TechnologyKing Mongkut’s University of Technology ThonburiBangkok Thailand Walai Rukhavej Botanical Research Institute Mahasarakham UniversityMahasarakhamThailand CSIRO Ecosystem Sciences AthertonQueenslandAustralia

Fleshy-fruited plants in tropical forests largely rely on vertebrate frugivores to disperse their *** this plant-animal interaction is typically considered a diffuse mutualism,it is fundamental as it provides the template on which tropical forest communities are *** applied a mutualistic network approach to investigate the relationship between small-fruited fleshy plant species and the fruit-eating bird community in an intact evergreen forest in north-east Thailand.A minimum of 53 bird species consumed fruits of 136 plant ***-avian frugivore networks were highly asymmetrical,with observed networks filling 30%of all potential *** some of the missing links in the present study might be due to undersampling,forbidden links can be attributed to size constraints,accessibility and phenological uncoupling,and although the majority of missing links were unknown(58.2%),many were probably due to a given bird species being either rare or only a very occasional fruit *** most common frugivores were bulbuls,barbets and fairy-bluebirds,which were responsible for the majority of fruit removal from small fleshy fruited species in our *** birds seemed to be a minor component of the plant-frugivore networks,accounting for only 3%of feeding visits to fruiting trees;they filled 2%of the overall potential *** majority of interactions were generalized unspecific;however,Saurauia roxburghii *** to be dependent on flowerpeckers for dispersal,while Thick-billed Pigeons were only seen to eat figs.

关键词： avian frugivore nestedness plant-frugivore networks seed dispersal tropical forest

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