Impact of predator diversity treatments on aphid prey density

Predator density and diversity were manipulated in a field cage experiment. <br><br>The data uploaded is the mean numbers and standard deviation of aphids (<i>R. padi</i>) at predator introduction and at the end of experiment 12 days later. <br><br>we had:<br>- Three low diversity treatments: carabid <i>P. melanariu</i>s, ladybird larvae <i>(C. septempunctata)</i>, lacewing larvae (<i>C. carnea</i>)<br>- A high diversity treatment using a subsitutive design <br>

本研究通过田间笼养实验操控了天敌的密度与多样性。

本次上传的数据为天敌引入时，以及实验开展12天后结束时，麦二叉蚜（*R. padi*）的平均数量与标准差。

实验设置如下：
- 三类低多样性天敌处理：步甲科物种*P. melanariu*、七星瓢虫幼虫（*C. septempunctata*）以及草蛉幼虫（*C. carnea*）
- 一类采用替换设计的高多样性天敌处理。