Behavioural Clips for mating pairs with predators

Clips from full videos used to score a mating pairs courtship and copulation behaviours. These clips highlight both mating behaviours and antipredatory behaviours displayed by the mating pairs.Each clip has 4 containers with a mating pair of Drosophila melanogaster that are separated from a spider beneath by a layer of mesh. Additional details can be seen in BoxA. Courtship Predator where clips was trimmed from full video files."Courting" videos show the courtship initiations, durations and different behavioural displays that were used to score the number of courtship displays and the amount of time courting through 15 minutes. Note: other videos have courtship occurring as well for more examples."Copulation" video shows a male initiating copulation with a female (used as copulation initiation measure). Copulation duration was measured from this start time to the moment the male and female separated. Note: this video is the only one taken from BoxC - Copulation Predator.All other videos are present as examples of flies reacting to the predation threat beneath them. Behaviours highlighted include "Jumping" away from a perceived threat, "Turning" and "Avoidance" to avoid a predator, "AbdominalLift", a behaviour previously observed in the lab believed to be an antipredatory trait, "Freeze" where a fly stops moving when close to a predator, and "FlipOut" where a fly jumps, flies and moves rapidly when encountering a predator.Videos ending correspond to container showing behaviour of interest (BL = Bottom Left, TR = Top Right etc.).

本数据集所用视频片段均源自完整录像，用于量化评分果蝇交配对的求偶与交配行为。这些片段同时展现了交配对所表现出的交配行为与反捕食行为。每个片段均包含4个饲养容器，内置一对黑腹果蝇（Drosophila melanogaster），容器下方通过一层网格与下方的蜘蛛相隔。相关详细信息可参见BoxA。本次所用片段均剪辑自《求偶-捕食（Courtship Predator）》的完整录像文件。"求偶（Courting）"视频展示了求偶的起始过程、持续时长与各类行为表现，用于在15分钟的观测时长内统计求偶行为的总次数与耗时。注：其余视频也包含求偶场景，可作为更多示例参考。"交配（Copulation）"视频展示了雄果蝇向雌果蝇发起交配的过程，该片段用于量化评估交配起始行为。交配持续时长则从该起始时刻起，直至雌雄果蝇分离时终止统计。注：该片段是唯一源自BoxC——"交配-捕食（Copulation Predator）"的视频。其余所有视频均用于展示果蝇对下方捕食威胁的反应行为。本次重点展示的行为包括：逃离感知威胁的"跳跃（Jumping）"、规避捕食者的"转身（Turning）"与"躲避（Avoidance）"；"腹部抬起（AbdominalLift）"——此前实验室观测到的、被认定为反捕食特征的行为；"静止（Freeze）"——果蝇靠近捕食者时停止移动的行为；以及"翻转逃逸（FlipOut）"——果蝇遭遇捕食者时跳跃、飞行并快速移动的行为。视频后缀标识对应展示目标行为的饲养容器位置（如BL=左下角、TR=右上角等）。