Predator-prey interactions under near-future environmental change: The combined effects of increasing temperature and turbidity

这项工作的范围是调查水温和浊度变化如何影响热带和温带淡水系统中捕食者-猎物的相互作用。该项目将使用三棘棘鱼和少女蝇作为布里斯托尔大学温带系统的模式生物，在那里，捕食者的活动将使用计算机视觉跟踪软件（狩猎行为）和猎物死亡率进行测量和分析。在特立尼达，在西印度群岛大学，实地实验和中观实验将测试孔雀鱼和它们的天敌——鲷鱼之间的相互作用。在这里，我还将从现场收集eDNA样本，以评估种群规模及其与当地浊度和温度的关系。最后，数据将被输入一个模型，以估计全球变暖在不久的将来对这些社区的影响。

The scope of the work is to investigate how combined water temperature and turbidity variations impact predator-prey interactions in freshwater systems, both tropical and temperate. The project will use three-spine sticklebacks and damsel flies as model organisms in the temperate system here at Bristol University, where predator's activity will be measured and analysed using computer vision tracking software (hunting behaviour) and prey mortality.In Trinidad, at the University of West Indies, both field based and mesocosm experiments will test the interactions of guppies and their natural predator, the pike cichlid. Here I will also collect eDNA samples from the field sites to assess population size and its relationship to local turbidity and temperature.Finally, data will be fed into a model to estimate the effects of global heating on these communities in near-future scenarios.