Abstract：
Functional traits are critical tools in plant ecology for capturing organism-environment interactions based on trade-offs and making links between organismal and ecosystem processes. While broad frameworks for functional traits have been developed for vascular plants, we lack the same for bryophytes, despite an escalation in the number of studies on bryophyte functional trait in the last 45 years and an increased recognition of the ecological roles bryophytes play across ecosystems. In this review, we compiled data from 282 published articles (10,005 records) that focused on functional traits measured in mosses and sought to examine trends in types of traits measured, capture taxonomic and geographic breadth of trait coverage, reveal biases in coverage in the current literature, and develop a bryophyte-function index (BFI) to describe the completeness of current trait coverage and identify global gaps to focus research efforts. The most commonly measured response traits (those related to growth/reproduction in individual organisms) and effect traits (those that directly affect community/ecosystem scale processes) fell into the categories of morphology (e.g., leaf area, shoot height) and nutrient storage/cycling, and our BFI revealed that these data were most commonly collected from temperate and boreal regions of Europe, North America, and East Asia. However, fewer than 10% of known moss species have available functional trait information. Our synthesis revealed a need for research on traits related to ontogeny, sex, and intraspecific plasticity and on co-measurement of traits related to water relations and bryophyte-mediated soil processes.
摘要：
功能性状是植物生态学中的关键工具，用于基于权衡来捕获生物体与环境的相互作用，并在生物体和生态系统过程之间建立联系。虽然已经为维管植物开发了功能性状的广泛框架，我们对苔藓植物缺乏同样的东西，尽管在过去的45年中，苔藓植物功能性状的研究数量有所增加，并且对苔藓植物在生态系统中发挥的生态作用的认识也有所增加。在这次审查中,我们从282篇发表的文章（10,005条记录）中收集了数据，这些文章专注于苔藓中测量的功能性状，并试图检查所测量性状类型的趋势，捕获性状覆盖的分类学和地理宽度，揭示当前文献中报道的偏见，并开发苔藓植物功能指数（BFI）来描述当前性状覆盖的完整性，并确定全球差距以集中研究工作。最常用的响应性状（与个体生物的生长/繁殖有关的性状）和效应性状（直接影响群落/生态系统尺度过程的性状）属于形态学类别（例如，叶面积,芽高度)和养分储存/循环，我们的BFI显示，这些数据通常来自欧洲的温带和北方地区，北美,和东亚。然而,不到10%的已知苔藓物种具有可用的功能性状信息。我们的合成表明需要研究与个体发育相关的性状，性别,和种内可塑性以及与水分关系和苔藓植物介导的土壤过程相关的性状的共同测量。
