AimsLianas are a central component of tropical forests. However, how the type of climbing mechanisms is related to the functional and taxonomic diversity of lianas across the tropics, remains largely unresolved. Here, we tested two main hypotheses: (i) the functional diversity of lianas differs with climbing mechanism (active and passive) and (ii) the association between taxonomic diversity with contemporary climate, paleoclimate, forest structure and phylogeny differ between climbing mechanisms.LocationTropical forests.Time PeriodPresent.Major Taxa StudiedTerrestrial plants.MethodsWe assembled functional traits and the type of climbing mechanism for 702 liana species and used the World Checklist of Vascular Plants (WCVP v.2.0) to standardize species names, map geographical distribution and estimate taxonomic richness. We used kernel density n‐dimensional hypervolume to estimate the functional diversity of each type of climbing mechanism. We compared the environmental response of taxonomic richness of each type of climbing mechanism, active and passive, to the response of overall liana species richness. We assessed the magnitude and direction of the environmental response considering variables of climate, soil fertility and forest structure.ResultsWe found that active climbing exhibits a higher functional richness than passive climbing. Richness patterns of active and passive climbing mechanisms were mainly driven by contemporary climate, paleoclimate and phylogenetic relatedness. More importantly, paleoclimate was negatively associated with active climbing and positively associated with passive climbing.Main ConclusionsOur study highlights differences in functional diversity (richness, dispersion, evenness and originality) between active and passive climbing species, likely reflecting their distinct ecological strategies for resource use, stress tolerance and dispersal. Integrating taxonomic and functional diversity metrics with information about the type of climbing mechanism provides deeper insights into the ecology and response of lianas to climate change.

中文翻译：

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攀爬机制是了解热带地区藤本植物生态的核心特征

目标藤本植物是热带森林的核心组成部分。然而，攀爬机制的类型如何与热带地区藤本植物的功能和分类多样性相关，在很大程度上仍未解决。在这里，我们测试了两个主要假设：（i）藤本植物的功能多样性因攀爬机制（主动和被动）而异，以及（ii）分类多样性与当代气候、古气候、森林结构和系统发育之间的关联因攀爬机制而异。森林。时间段。研究陆生植物的主要分类单元。方法我们收集了 702 个藤本植物的功能性状和攀爬机制类型，并使用世界维管植物清单 (WCVP v.2.0) 来标准化物种名称、绘制地理分布图并估计分类丰富度。我们使用核密度n维超体积来估计每种类型的攀爬机构的功能多样性。我们将每种类型的主动和被动攀爬机制的分类丰富度的环境响应与整体藤本植物物种丰富度的响应进行了比较。我们考虑了气候、土壤肥力和森林结构等变量，评估了环境响应的幅度和方向。结果我们发现主动攀爬比被动攀爬表现出更高的功能丰富性。主动和被动攀爬机制的丰富度模式主要由当代气候、古气候和系统发育相关性驱动。更重要的是，古气候与主动攀爬呈负相关，与被动攀爬呈正相关。主要结论我们的研究强调了主动攀爬物种和被动攀爬物种之间功能多样性（丰富性、分散性、均匀性和原创性）的差异，可能反映了它们不同的资源利用生态策略、应激耐受性和分散性。将分类学和功能多样性指标与攀爬机制类型的信息相结合，可以更深入地了解藤本植物的生态和对气候变化的响应。