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Functional strategies and distribution of climbing plant communities in different vegetation patches in a subtropical dry forest, central Argentina

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Journal of Plant Ecology 2019年第1期12卷 23-33页

作者： maría cecilia ferrero Sebastián R.Zeballos Juan I.Whitworth-Hulse Melisa A.Giorgis Diego E.Gurvich Instituto Multidisciplinario de Biología Vegetal CONICET-Universidad Nacional de CórdobaAv.Vélez Sársfield 1611CP X5016ZAACórdobaArgentina Facultad de Ciencias Exactas Físicas y NaturalesUniversidad Nacional de CórdobaAv.Vélez Sársfield 299CP X5000JJCCórdobaArgentina

Aims In the context of global change,the impacts of forest structure alter-ation on climbing plants in extra-tropical ecosystems are poorly *** also remains little explored,the functional strategies among climbing plant species and its relationship with the local-scale distribution of climbing plant ***,we aimed at three goals:(i)we studied how climbing plant community com-position responds to the modification of the original forest structure in a subtropical dry forest;(ii)we characterized climbing plant spe-cies according to functional traits related to the acquisition and use of resources;and(iii)we examined whether functional strategies at the community level are also responding to vegetation structure change,a much less addressed topic in the ecology of climbing *** The study was carried out in the Chaco forest of Córdoba Mountains,central *** selected 18 patches of‘native forests’,‘shrublands’and‘Ligustrum lucidum forests’.We counted and identified climbing plant individuals in each patch,including woody and herbaceous *** each spe-cies,we measured 10 functional traits:leaf area,leaf area ratio,leaf dry matter content,leaf tensile strength,specific leaf area,stem density,wood saturated water content,inter-node length,petiole length and plant *** compared climbing plant composition,richness and abundance among the three vegeta-tion ***,we assessed trends of functional variation of climbing plant species by performing a principal component ***,we investigated whether simple mean,weighted mean and Functional Richness index of principal component analysis(PCA)axes differed among the climbing plant communi-ties of the three vegetation *** Findings Multivariate analysis revealed that climbing plant composition of native forests significantly differed from that of shrublands and *** ***,*** forests had the lowest climb-ing plant species *** var

关键词： vines functional traits Chaco Serrano climbing plant species richness community weighted means

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