Predation intensity on marine invertebrate communities across latitude observed using underwater video (Competition and Predation across Latitude)

<p>Predation intensity recorded from exposed prey communities at coastal sites across a latitudinal gradient spanning the subarctic to the tropics. Invertebrate communities developed under low predation for three or 12 months within cages.&nbsp; Mature prey communities were then exposed to ambient predation, with a high definition camera recording all predation events during the diurnal period over three days of exposure. This experiment provided an assessment of predation intensity (and predator identity) to complement predator exclusion experiments that measured impact of predators on prey community assembly.</p>

本数据集记录了横跨亚北极至热带纬度梯度的沿海站点中，暴露于捕食压力的猎物群落的捕食强度。无脊椎动物群落于笼网环境中，在低捕食压力条件下发育3个月或12个月。随后将成熟的猎物群落暴露于自然捕食环境中，并使用高清摄像机记录3天暴露周期内白昼时段发生的全部捕食事件。本实验旨在评估捕食强度（及捕食者物种身份），以补充那些测量捕食者对猎物群落组装过程影响的捕食者排除实验。