Dataset Artificial warming decreases heterotroph densities and trophic transfer efficiency

This file holds the data and scripts used in the article "Artificial warming decreases heterotroph densities and trophic transfer efficiency".Data are available in files whose name begins with the prefix "df". The variables names "date" and "date_c" represent the sampling date in discrete or continue value, respectively. "mesocosm_ID" is the identity of the mesocosm. "fish" represent the fish treatment (NF for No Fish, LB for Large-bodied fish and SB for Small-bodied fish). "warming" is the temperature treatment (NW for no warming, W for warming). "tmean15" is the mean temperature of the 15 days prior to the sampling date. "compartment", "class", "order" and "taxa" represent the taxonomy of the organisms. "N_l" is the density per liter. "C_mug_l" is the carbon biomass in microgram per liter. "S" and "H" are the species richness and the Shannon diversity index, respectively. "ZP" is the zooplankton:phytoplankton biomass ratio. The variables in df_bss.csv file are described in the main text of the article.Files with a numerical prefix are the scripts used for the statistical analyzes (multivariate analyzes, ecological index, community density and biomass, Predator Prey Biomass Ratio and Biomass Size Spectra).

本文件收纳了论文《人工增温降低异养生物（heterotroph）密度与营养传递效率（trophic transfer efficiency）》（Artificial warming decreases heterotroph densities and trophic transfer efficiency）所使用的数据与配套脚本。数据存储于文件名前缀为"df"的各类文件中。变量"date"与"date_c"分别对应离散取值与连续取值的采样日期；"mesocosm_ID"为中型实验生态系统（mesocosm）的唯一标识；"fish"代表鱼类处理分组（NF为无鱼组，LB为大型鱼类组，SB为小型鱼类组）；"warming"为温度处理分组（NW为无增温组，W为增温组）；"tmean15"为采样日期前15天的平均水温；"compartment"、"class"、"order"与"taxa"分别代表生物的分类层级（生境分区、纲、目、类群）；"N_l"为每升个体密度；"C_mug_l"为以微克每升为单位的碳生物量；"S"与"H"分别对应物种丰富度与香农多样性指数（Shannon diversity index）；"ZP"为浮游动物与浮游植物的生物量比值。df_bss.csv文件内的变量说明详见论文正文部分。带有数字前缀的文件为统计分析脚本，涵盖多元统计分析、生态指数计算、群落密度与生物量分析、捕食者-猎物生物量比分析及生物量粒径谱分析。