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

作　　者：María Cecilia Ferrero Sebastián R.Zeballos Juan I.Whitworth-Hulse Melisa A.Giorgis Diego E.Gurvich 

机构地区：[1]Instituto Multidisciplinario de Biología Vegetal,CONICET-Universidad Nacional de Córdoba,Av.Vélez Sársfield 1611,CP X5016ZAA,Córdoba,Argentina [2]Facultad de Ciencias Exactas,Físicas y Naturales,Universidad Nacional de Córdoba,Av.Vélez Sársfield 299,CP X5000JJC,Córdoba,Argentina

出　　处：《Journal of Plant Ecology》2019年第1期23-33,共11页植物生态学报（英文版）

基　　金：This work was supported by Fondo para la Investigación Científica y Tecnológica(FonCyT,PICT 2006 N°903);Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET,PICT 11220110100873).D.E.Gurvich and M.A.Giorgis are researchers at CONICET.

摘　　要：Aims In the context of global change,the impacts of forest structure alter-ation on climbing plants in extra-tropical ecosystems are poorly understood.It also remains little explored,the functional strategies among climbing plant species and its relationship with the local-scale distribution of climbing plant communities.Here,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 plants.Methods The study was carried out in the Chaco forest of Córdoba Mountains,central Argentina.We 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 species.For 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 cover.We compared climbing plant composition,richness and abundance among the three vegeta-tion types.Then,we assessed trends of functional variation of climbing plant species by performing a principal component analysis.Finally,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 types.Important Findings Multivariate analysis revealed that climbing plant composition of native forests significantly differed from that of shrublands and L.lucidum forests.Also,L.lucidum forests had the lowest climb-ing plant species richness.Functional variation of climbers was explained by

关 键 词：VINES functional traits Chaco Serrano climbing plant species richness community weighted means 

分 类 号：S71[农业科学—林学]