Defence variation within a guild of aphid-tending ants explains aphid population growth

1. RScript_field experiments: R Script to calculate the probabilities of aphid natural enemies of being ejected from thistles by the ant Dorymyrmex tener. Data is available in 'data_field experiments.txt'2. RScript_ant exclusion experiments: R Script to calculate the effect of the ant Dorymyrmex tener on aphid density and the abundance of aphid natural enemies on thistles. Data is available in 'data_ant exclusion experiments'3. RScript_ladybug encounters: R Script to calculate ant species aggressiveness toward ladybugs. Data is available in 'data_ladybug encounters'4. RScript_syrphid larvae encounters: R Script showing how to calculate ant species aggressiveness toward syrphid larvae. Data is available as 'data_syrphid larvae encounters.txt'5. RScript_aphid intrinsic rate of increase: R Script used to calculate aphid intrinsic rate of increase. Data is available as 'Data_aphid intrinsic rate of increase.txt.'

1. 野外实验RScript：用于计算蚜虫（aphid）天敌被蚂蚁（Dorymyrmex tener）从蓟植株上驱逐的概率，相关数据存储于'data_field experiments.txt'文件中。
2. 蚂蚁排除实验RScript：用于评估蚂蚁（Dorymyrmex tener）对蓟植株上蚜虫密度及蚜虫天敌种群丰度的影响，相关数据存储于'data_ant exclusion experiments'文件中。
3. 瓢虫遭遇实验RScript：用于测算不同蚂蚁物种对瓢虫（ladybug）的攻击性水平，相关数据存储于'data_ladybug encounters'文件中。
4. 食蚜蝇幼虫遭遇实验RScript：用于演示不同蚂蚁物种对食蚜蝇幼虫（syrphid larvae）的攻击性计算流程，相关数据以'data_syrphid larvae encounters.txt'文件形式提供。
5. 蚜虫内禀增长率（intrinsic rate of increase）RScript：用于计算蚜虫的内禀增长率，相关数据存储于'Data_aphid intrinsic rate of increase.txt'文件中。