Prudent burrow site selection in a landscape of fear (Data and R code)

Data Description Isopods from a natural population visited safe and risky burrows created by introducing scorpion predators near some isopod burrows. Their preferences were quantified by observing whether they entered the burrow or not, and if they did enter by recording the time they spent inside a burrow. Finally, individual quality was measured by weighing them at the end of the trial. Data were collected starting from between 1300 to 1400 hours to 1600 to 1700 hours. The R file titled 'pram_prud_fig.R' has all the code used to run all the analyses and the plots. Data availability Statements The file titled ‘pram_data_fig.csv’ has all the relevant data. It has the following columns: Individual.code – Individual identity of each male. Date – The date when the trial was conducted. Time – The time when the observation was made. date_time – Previous two columns combined. Duration – The duration for which the action mentioned in the current row lasted. Action – The behaviour performed by the isopod, written as a code (the table below has details of what the code means). Burrow.block – The block of safe and risky burrows. Burrows.visited – The specific burrows visited within the block. Observer.name – Name of the human observer. Terrace.no. – The terrace on which the block was designed. Sex – Sex of the individual Weight – Body weight of the individual Burrow.already.occupied.by – Which individual was already occupying the burrow when the focal individual visited. Collected.at.end.of.sampling – Was the isopod still occupying the burrow at the end of the 2 days of trial? 1 for yes, blank for no. Fight.with.whom – With which isopod from inside the burrow did the focal individual fight with? Details of the code used to describe isopod behaviour at and inside the burrow 1 - Rejects burrow 2 - Samples burrow 3 - Occupies burrow 4 - Starts digging 5 - Samples scorpion burrow 6 - Mild competition with sampling isopod 7 - Aggressive competition with sampling isopod 8 - Leaves burrow 9 - Enters burrow 10 - flipped orientation 11 - Collected数据集描述 本数据集的研究对象为自然种群中的等足类动物（Isopods）：研究者在部分等足类洞穴附近引入蝎子作为捕食者，以此构建了安全与危险两类洞穴，观测该种群对这两类洞穴的访问偏好。 实验通过观测等足类是否进入洞穴、以及进入后在洞穴内的停留时长，量化其洞穴选择偏好。实验结束后，通过称重个体体重测定其品质。 数据采集时段为每日13:00至17:00，具体观测工作开展于13:00-14:00至16:00-17:00之间。 名为`pram_prud_fig.R`的R脚本文件包含了所有分析与绘图所用的代码。 数据可用性说明 名为`pram_data_fig.csv`的文件包含所有相关实验数据，其字段说明如下： 1. Individual.code：每个雄性个体的唯一标识 2. Date：实验开展日期 3. Time：观测实施时刻 4. date_time：上述Date与Time两字段的合并值 5. Duration：当前行对应行为的持续时长 6. Action：等足类所执行行为的代码标识（行为代码含义详见下表） 7. Burrow.block：安全与危险洞穴的分组区块 8. Burrows.visited：该区块内被访问的具体洞穴 9. Observer.name：人类观测者姓名 10. Terrace.no.：该洞穴区块设置所在的台地编号 11. Sex：实验个体的性别 12. Weight：实验个体的体重 13. Burrow.already.occupied.by：当目标个体访问该洞穴时，已占据该洞穴的其他个体信息 14. Collected.at.end.of.sampling：实验为期2天的观测结束后，目标等足类是否仍占据洞穴：1代表是，空值代表否 15. Fight.with.whom：目标个体与洞穴内的哪一只等足类发生了争斗 等足类洞穴内外行为代码说明 1 - 拒绝洞穴 2 - 探查洞穴 3 - 占据洞穴 4 - 开始挖掘 5 - 探查蝎子洞穴 6 - 与探查个体发生温和竞争 7 - 与探查个体发生激烈竞争 8 - 离开洞穴 9 - 进入洞穴 10 - 体位翻转 11 - 被采集