Time-to-event data of four freshwater snail species predation by a prawn and a crayfish

Time-to-event data of four freshwater snail species - Thiara scabra, Tarebia granifera, Melanoides tuberculata and haita acuta - predation by a Macrobrachium rosenbergii prawn and a Cherax quadricarinatus crayfish. Predation was on five snails from each species. Snails were of the same size grade, as were the predators. The animals were fed during the experiment to ensure that predation was due to choice and not starvation.
The data includes the predator species (Mr for M. rosenbergii, Cq for C. quadricarinatus) and ID, predator body mass in g, the container code, the snail species and ID and time until snail predation in hours. "Cont" is short for control tank, which did not have any predator, and had only snails to account for background mortality.

本数据集记录了四种淡水螺类——光滑短沟蜷（Thiara scabra）、瘤拟黑螺（Tarebia granifera）、红环螺（Melanoides tuberculata）与尖膀胱螺（Haita acuta）——被罗氏沼虾（Macrobrachium rosenbergii）及澳洲淡水龙虾（Cherax quadricarinatus）捕食的事件发生时间数据。每组螺类均投放5只受试个体，受试螺类与捕食者个体均统一规格。实验期间对所有受试动物进行投喂，以确保捕食行为源于取食选择而非饥饿胁迫。
数据集包含以下信息：捕食者物种（Mr代表罗氏沼虾，Cq代表澳洲淡水龙虾）及其编号、捕食者体重（单位：克）、养殖容器编号、受试螺类物种及其编号，以及螺类被捕食前的存活时长（单位：小时）。"Cont"为对照缸（control tank）的缩写，对照缸仅投放受试螺类，未设置捕食者，用于统计背景死亡率。