The impact of predators and vegetation on shoaling in wild zebrafish

In their natural habitats, animals experience multiple ecological factors and regulate their social responses accordingly. To unravel the impact of two ecological factors on the immediate behavioral response of groups, we conducted experiments on wild zebrafish shoals in arenas with vegetation, predator cues, both factors simultaneously, or neither (control treatments). Analysis of 297 trials revealed that while shoals formed significantly larger subgroups in the presence of predator cues, their subgroup size was comparable to control treatments when they faced predator cues and vegetation. Shoals were highly polarized in open arenas, in the absence of either ecological factor and in the presence of predator cues (with/without vegetation). The presence of vegetation alone, however, significantly reduced shoal polarization. Furthermore, food intake was significantly reduced when predator cues and/or vegetation were present. Tracking individuals revealed that: (i)individuals within shoals..., , , ## Data from: The impact of predators and vegetation on shoaling in wild zebrafish

Shoaling in wild zebrafish is impacted by various ecological factors. Here, through a series of manipulative experiments, we examine the impact of vegetation or/and predator odors on shoaling tendencies in this cyprinid species.

The given excel files contains data on:
(1) the mean largest subgroup size,
(2) mean polarisation score;
(3)foraging behavior of shoals in terms of number of bites at bloodworms,
(4)probability to switch states from solitary to solitary and group to group
(5)mean position of individuals and the standard deviation corresponding to the mean position

(6) The date of experimentation for each shoal

The above data have been presented in a single sheet.
Abbreviations used: PT stands for predator treatment, CT stands for control treatment, PVT stands for Predator Vegetation Treatment and VT stands for Vegetation Treatment.

Data was derived from the following sources:
Data was derived...

在自然栖息地中，动物会遭遇多种生态因子，并相应地调节其社会行为反应。为揭示两种生态因子对群体即时行为响应的影响，我们以野生斑马鱼（zebrafish）鱼群为研究对象开展实验，实验环境包括存在植被、存在捕食者线索、同时存在两种因子或两者皆无（对照处理）的区域。对297次试验的分析显示，当存在捕食者线索时，鱼群会形成显著更大的子群；但当同时面临捕食者线索与植被时，其子群规模与对照处理组相当。在开阔区域（即不存在任何生态因子的环境）以及存在捕食者线索（无论是否伴随植被）的环境中，鱼群具有高度极化特征；然而，仅存在植被时，鱼群极化程度显著降低。此外，当捕食者线索和/或植被存在时，摄食量显著下降。对个体的追踪显示：(i)鱼群内的个体……，，，## 数据来源：捕食者与植被对野生斑马鱼鱼群行为的影响

野生斑马鱼的鱼群行为受多种生态因子影响。本研究通过一系列操控实验，探究植被或/和捕食者气味对这一鲤科鱼类（cyprinid species）鱼群倾向的影响。

所提供的Excel文件包含以下数据：
(1)平均最大子群规模；
(2)平均极化得分；
(3)鱼群的取食行为（以对红虫（bloodworms）的啄食次数衡量）；
(4)从独居到独居、群体到群体的状态转换概率；
(5)个体的平均位置及对应平均位置的标准差；
(6)每个鱼群的实验日期

上述数据均呈现在单个工作表中。
所用缩写：PT代表捕食者处理（predator treatment），CT代表对照处理（control treatment），PVT代表捕食者-植被处理（Predator Vegetation Treatment），VT代表植被处理（Vegetation Treatment）。

数据来源于以下渠道：数据来源于……