Raw data used in A unified framework for herbivore-to-producer biomass ratio reveals the relative influence of four ecological factor

The biomass ratio of herbivores to primary producers reflects the structure of a community. Four primary factors have been proposed to affect this ratio, including production rate, defense traits and nutrient contents of producers, and predation by carnivores. However, identifying the joint effects of these factors across natural communities has been elusive, in part because of the lack of a framework for examining their effects simultaneously. Here, we develop a framework based on Lotka-Volterra equations for examining the effects of these factors on the biomass ratio. We then utilize it to test if these factors simultaneously affect the biomass ratio of freshwater plankton communities. We found that all four factors contributed significantly to the biomass ratio, with carnivore abundance having the greatest effect, followed by producer stoichiometric nutrient content. Â Thus, the present framework should be useful for examining the multiple factors shaping various types of communities,...植食动物与初级生产者（primary producers）的生物量比值，能够反映群落的结构特征。目前已有四项核心因子被提出会影响该比值，包括生产者的生产速率、防御性状与营养组分，以及肉食动物的捕食作用。然而，在自然群落中解析这些因子的联合效应始终颇具挑战，部分原因在于缺乏可同时考察其影响的研究框架。本研究基于洛特卡-沃尔泰拉方程（Lotka-Volterra equations）构建了一套研究框架，用以分析这些因子对生物量比值的影响。随后利用该框架检验这些因子是否会共同影响淡水浮游生物群落（freshwater plankton communities）的生物量比值。研究结果显示，四项因子均对生物量比值存在显著影响，其中肉食动物丰度的影响最为显著，其次为生产者的化学计量营养组分。综上，本研究构建的框架可用于解析塑造各类群落的多重因子……