Data for: Mosquitofish use the past experiences of others with risk to make shoaling decisions

These are lab collected data on F1 lab-born juvenile mosquitofish. Focal individuals could choose to associate with 2 different partners that had either been exposed to cues of predation in the past (alarm cue) or not (water control). Trials were 3 minutes before alarm cue was added and 3 minutes after alarm cue was added. Data are presented in ‘long-format’. Column headings A. Focal individual = the individual identity of the naive lab-born focal individuals whose association patterns are being measured (n=29 focal fish) B. left_trt = which partner was located in the left box in the tank (A = alarm cue partner, C = control partner). Determined by coin toss and then alternated. C. time = shoaling was measured at two time periods for each focal individual —> “before” means the 3 minutes before any alarm cue was added and “during” means the 3 minutes after 1ml of alarm cue was added to the center of the preference tank D. partner_treatment = refers to the previous predator-exposure of the partner (“alarm” = partner exposed to alarm cue repeatedly, “control” = partner exposed to water cues only) E. num_enters = the number of times over the 180 second trial that the focal fish entered the partner fish zone I. total_num_enters = the number of times that the focal fish entered a partner fish zone (alarm+control) during the 180 time period. Note that while this value appears twice (once for alarm partner and once for the control partner), it should only count a single time “before” and “during” alarm cue since it is a sum of the two partners during a time period. G. time_spent = the amount of time (of a maximum of 180 seconds) that the focal fish spent with the partner fish indicted during the 3 minute trial H. prop_time_spent = the proportion of time that the focal fish spent with the partner fish indicted out of the 180 second trial I. total_preftime_sec = the total amount of time spent with either partner (alarm+control) during the time period. Note that while this value appears twice (once for alarm partner and once for the control partner), it should only count a single time “before” and “during” alarm cue since it is a sum of the two partners during a time period. J. active_partner_time = the amount of time (of a maximum of 180 seconds) that the partner fish spent moving around during the 3 minute trial K. partner_prop_active = the proportion of time that the partner spent active out of the 180 second trial

本数据集为实验室采集的F1代实验室繁育幼年食蚊鱼的实验数据。受试个体可选择与两类同伴结伴：一类同伴此前暴露于捕食者警戒信号（alarm cue），另一类仅暴露于水环境对照（water control）。实验分为两个阶段：添加警戒信号前3分钟，与添加警戒信号后3分钟，所有数据以长格式（long-format）存储。列项说明如下：A. 受试个体（Focal individual）：即本次研究中测定其结伴行为的未经历过相关实验处理的实验室繁育幼年食蚊鱼的个体标识，共29尾受试个体。B. 左侧同伴处理（left_trt）：指水族箱左侧箱体中放置的同伴类型，其中A代表暴露于警戒信号的同伴，C代表水环境对照同伴。该分组通过抛硬币确定，并交替切换。C. 实验时段（time）：针对每个受试个体，群游（shoaling）行为的观测分为两个时段——"before"代表添加警戒信号前的3分钟，"during"代表向偏好测试水族箱中央添加1ml警戒信号后的3分钟。D. 同伴处理类型（partner_treatment）：指同伴此前的捕食者暴露经历，其中"alarm"代表同伴反复暴露于警戒信号，"control"代表同伴仅暴露于水环境对照信号。E. 进入对应同伴区域次数（num_enters）：指在180秒的实验周期内，受试个体进入对应同伴活动区域的总次数。F. 总进入同伴区域次数（total_num_enters）：指单个实验时段内，受试个体进入两类同伴活动区域的总次数（警戒同伴+对照同伴）。需注意该数值会在数据中重复出现两次（分别对应警戒同伴与对照同伴的条目），但每个实验时段仅应统计一次，因其为该时段内两类同伴的进入次数总和。G. 共处时长（time_spent）：指在3分钟实验周期内，受试个体与对应同伴共处的时长（最长为180秒）。H. 共处时长占比（prop_time_spent）：指受试个体与对应同伴共处的时长占整个180秒实验周期的比例。I. 总共处时长（total_preftime_sec）：指单个实验时段内，受试个体与两类同伴共处的总时长（警戒同伴+对照同伴）。同样，该数值会在数据中重复出现两次（分别对应两类同伴的条目），每个实验时段仅应统计一次，因其为该时段内两类同伴的共处时长总和。J. 同伴活动时长（active_partner_time）：指在3分钟实验周期内，对应同伴自身活动的总时长（最长为180秒）。K. 同伴活动占比（partner_prop_active）：指对应同伴在180秒实验周期内处于活动状态的时长占整个实验周期的比例。