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Impacts of forest management on liana diversity and community structure in a tropical forest in Ghana:implications for conservation

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Journal of Forestry Research 2016年第1期27卷 147-153页

作者： P.Addo-Fordjour Z.B.Rahmad A.M.S Shahrul M.Ashyraf School of Biological Sciences Universiti Sains Malaysia Department of Theoretical and Applied Biology College of Science Kwame Nkrumah University of Science and Technology (KNUST) The Centre for Marine and Coastal Studies (CEMACS) Universiti Sains Malaysia

We studied the impacts of liana cutting as a forest management tool on liana diversity （species richness, Shannon diversity index） and community structure （diam- eter distribution, basal area, species dominance） in the Asenanyo Forest Reserve, Ghana. Two types of silvicul- turally treated forests were studied： Logging treated （LT） and Tropical Shelterwood System （TSS） treated forests. An untreated primary forest was included as a control, result- ing in three forest management systems. lianas with diameter 〉2 cm were identified in ten 40 × 40 m2 plots within each management system. liana cutting signifi- cantly reduced liana species richness, Shannon diversity index, and basal area in the LT forest after two decades. However, liana species richness and basal area werecomparable in the TSS treated and untreated forests, indi- cating significant recovery in the former after over six decades. Sφrensen similarity index of liana species com- position between the untreated forest and each of the treated forests was moderate. Our findings suggest that liana cutting most likely influenced the dominance of some liana species. In view of the adverse impact of blanket liana cutting on liana diversity, selective liana cutting is rec- ommended as a means of controlling liana numbers while maintaining liana diversity.

关键词： Forest management system liana diversity liana basal area Silviculture Tropical forest biodiversity

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diversity, distribution and resource values of woody climbers in tropical forests of southern Eastern Ghats, India

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Journal of Forestry Research 2013年第2期24卷 365-374页

作者： Chellam Muthumperumal Narayanaswamy Parthasarathy Department of Ecology and Environmental Sciences Pondicherry University

We investigated the distribution and resource values of liana species assessed in six hill complexes of southern Eastern Ghats, India. 143 liana species （DBH （diameter at breast height） ≥1.5 cm） and 32,033 liana individuals were recorded from 110 transects （0.5 ha each covering 55 ha area） in the study sites. The resource values of lianas were broadly categorized into ecological and economic importance. About 90% （129） of liana species and 96% （30,564） of liana individuals were established ecological/economic values. Fruit rewards provided by 76 species and 20,325 individuals constituted the major resource of ecological importance. 82 species and 21,457 liana individuals are of economic importance as medicine, edible fruits, edible and medicinal values, and yet others are used for different domestic purposes including furniture, fuel wood, rope making etc.. Ecologically, the prevalence of succulent diaspores in lianas of Indian Eastern Ghats indicates the animal dependence of many liana species for dispersal and underlines the need for a holistic and whole-forest conservation approach in maintaining forest biodiversity.

关键词： animal dispersal Eastern Ghats India liana diversity resource values

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liana community and functional trait analysis in tropical dry evergreen forest of India

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Journal of Plant Ecology 2015年第5期8卷 501-512页

作者： Pandi Vivek Narayanaswamy Parthasarathy Department of Ecology and Environmental Sciences Pondicherry UniversityPuducherry 605014India

Aim lianas are abundant and diverse throughout the world and consti-tute an important structural and functional component of tropical *** study aims to investigate liana diversity,abundance and their functional traits in Indian tropical dry evergreen forest(TDEF).Methods a total of ten 1-ha plots,one each in 10 Indian TDEF sites were *** 1-ha plot was divided into one-hundred 10-×10-m quadrats to facilitate woody species *** lianas≥1 cm diameter measured at 130 cm from the rooting point and all trees≥10-cm girth at breast height(gbh)were recorded from the study sites to analyze the patterns of liana diversity and abundance and also to compare the contribution of lianas to the total woody species richness,density and basal *** variables across the study sites were compared using one-way analysis of *** qualitative functional traits of inventoried lianas and trees were assessed on the field and referring to pertinent field *** Findingsa total of 9237 liana individuals(ranged from 408-1658 individu-als ha^(−1))representing 52 species,45 genera and 28 families were encountered from the 10 study *** species richness ranged from 11-31 species ha^(−1) in 10 sites,which averaged 23.4(±5.7)species ha^(−1).The total basal area of lianas in the study sites was 7.3 m^(2)(0.20-1.76 m^(2) ha^(−1)).There was a significant variation in liana species richness,density and basal area across the studied *** the whole,lianas contributed 52%,49.3%and 4.1%to the total woody species(lianas and trees)richness,density and basal area,*** trait analysis revealed the majority(50%)of lianas belonged to brevi-deciduous *** twining was the chief climbing mechanism,exhibited by 21 species(52.6%of total abundance).more than half of the liana species(34 species;6925 individuals)had microphyllous ***-fruited lianas mostly bearing berries and drupes constituted the major fruit type in the studied si

关键词： climbing mechanism dispersal mode functional traits liana diversity tropical dry evergreen forest

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Intercontinental comparison of liana community assemblages in tropical forests of Ghana and Malaysia

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Journal of Plant Ecology 2017年第6期10卷 883-894页

作者： Patrick Addo-Fordjour Zakaria B.Rahmad Robyn J.Burnham School of Biological Sciences Universiti Sains Malaysia11800 Pulau Pinang PenangMalaysia Department of Theoretical and Applied Biology College of ScienceKwame Nkrumah University of Science and Technology(KNUST)KumasiGhana Department of Ecology and Evolutionary Biology University of MichiganAnn ArborMI 48109-1079USA

Aims liana research has increased in the past two decades,yet there is still inadequate comparison of liana communities at a cross-con-tinental *** compared liana assemblages in tropical forest ecosystems of Ghana and Malaysia,thereby determining patterns and mechanisms that are common or unique to the *** liana diversity,community structure and taxonomic composition were determined in 60 plots of 40×40 m2 in three forest types(primary,disturbed secondary,selectively logged)in each biogeo-graphic *** traits,climbing mechanisms and dispersal modes were determined for all species and individuals via direct field observation and with published *** were analyzed at biogeographic(using combined forest data)and forest-type *** Findings Both observed and rarefied-extrapolated species richness of lianas were significantly higher in Ghanaian forests compared to Malaysian *** most cases,species diversity indices(Shannon diversity index,Margalef,Fisher’s alpha)showed significantly higher liana diversity at Ghanaian forests at biogeographic and forest-type ***,Ghanaian forests harbored significantly higher values of liana abundance and basal area than Malaysian forests at both biogeographic and forest-type *** taxonomic composition of lianas differed considerably between the two biogeographic areas at all levels,although similarity in composition increased at generic and family *** above-ground biomass of lianas was simi-lar between the two biogeographic regions,variations occurred at forest-type level between the two *** two biogeographic areas showed some similarities in assemblages of liana climbing *** more species of lianas were adapted for animal dispersal than other dispersal modes in both countries,the majority of liana individuals in Ghana were wind dispersed whereas the majority of liana individuals in Malaysia were animal *** speculate that the differ

关键词： biogeographic region climbing mechanisms dispersal modes intercontinental patterns liana diversity liana community structure

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