field data

This file contains data for individual female snails collected from our 13 field sites in 2014 and 2015. These data were used in validating our results for variation in the proportion of sexual females between sites and for estimating the infection prevalence of sexual females. Data columns are as follows: (1) year (n=2); site (n=13); (3) length: shell length in millimeters; (4) infected: 0 for healthy, 1 for castrated with Microphallus; (5) ploidy: 2 for diploid sexual and 3 for triploid asexual.

本文件收录了2014年与2015年间，从我们设置的13个野外采样点采集的雌性蜗牛个体相关数据。该数据集曾用于验证我们关于不同采样点间有性生殖雌性比例差异的研究结果，并用于估算有性生殖雌性的感染率。数据字段如下：(1) 年份（共2个取值）；(2) 采样点（共13个取值）；(3) 体长：以毫米为单位的贝壳长度；(4) 感染状态：0代表健康个体，1代表被Microphallus（微尾吸虫）寄生并导致生殖腺阉割的个体；(5) 倍性：2表示二倍体有性生殖个体，3表示三倍体无性生殖个体。