Cardamine pratensis early/late ecotype transects Dibbinsdale Nature Reserve 2012-2014

Phenological escape, whereby species alter the timing of life-history events to avoid seasonal antagonists, is usually analyzed either as a potential evolutionary outcome given current selection coefficients or as a realized outcome in response to known enemies. We here gain mechanistic insights into the evolutionary trajectory of phenological escape in the brassicaceous herb Cardamine pratensis, by comparing the flowering schedules of two sympatric ecotypes in different stages of a disruptive response to egg-laying pressure imposed by the pierid butterfly Anthocharis cardamines, whose larvae are pre-dispersal seed predators (reducing realized fecundity by ~70%). When the focal point of highest intensity selection (peak egg-laying) occurs early in the flowering schedule, selection for late flowering dependent on reduced egg-laying combined with selection for early flowering dependent on reduced predator survival results in a symmetrical bimodal flowering curve; when the focal point occu..., , , # *Cardamine pratensis* early/late ecotype transects Dibbinsdale Nature Reserve 2012-2014

[https://doi.org/10.5061/dryad.v9s4mw741](https://doi.org/10.5061/dryad.v9s4mw741)

## Description of the data and file structure

The data comprise six Excel spreadsheets covering two *Cardamine pratensis* ecotypes (early and late) during a three-year study period (2012-2014) in Dibbinsdale Nature Reserve on the Wirral peninsula in NW England.

Data include the phenological state (number of flowers, buds, seed pods) of each *C. pratensis* plant and the number and life-history stage of any *Anthocharis cardamines* eggs and larvae found upon it.

Each file is structured as follows:

First line: Ecotype Code (CpE = *Cardamine pratensis* Early, CpL = *Cardamine pratensis* Late), Year.

Second line: Column headings. These are:

* Plant Number (assigned to each ramet on the transect)
* Date (day of year; half-dates indicate transect was surveyed over two successive days) 
* Height (plant height ...

物候逃逸（phenological escape）指物种通过改变生活史事件的发生时序以躲避季节性天敌，该研究主题通常被分为两类分析视角：一类是基于当前选择系数，将其视为潜在的演化结果；另一类则是针对已知天敌，探究其实际响应结果。本研究以十字花科草本植物草甸碎米荠（*Cardamine pratensis*）为研究对象，通过对比两种同域生态型在面临粉蝶（*Anthocharis cardamines*，其幼虫为种子预取食天敌，可使植株实际繁殖力降低约70%）产卵压力所引发的歧化响应的不同阶段时的开花物候，解析草甸碎米荠物候逃逸的演化轨迹，获得机制性见解。当选择强度最高的核心时段（产卵峰值）出现在开花周期早期时，依赖低产卵量的晚开花选择与依赖天敌低存活率的早开花选择共同作用，会形成对称的双峰开花曲线；当核心时段出现在……
# 草甸碎米荠早/晚生态型样带 迪宾斯代尔自然保护区 2012-2014
[https://doi.org/10.5061/dryad.v9s4mw741](https://doi.org/10.5061/dryad.v9s4mw741)

## 数据与文件结构说明
本数据集包含6个Excel电子表格，涵盖2012-2014年三年间，在英国英格兰西北部威勒尔半岛迪宾斯代尔自然保护区开展的针对两种草甸碎米荠（早、晚生态型）的研究数据。

数据内容包含每株草甸碎米荠的物候状态（开花数、花蕾数、荚果数），以及其上发现的菜粉蝶卵和幼虫的数量与生活史阶段。

每个文件的结构如下：
第一行：生态型代码（CpE = 草甸碎米荠早生态型，CpL = 草甸碎米荠晚生态型）、年份。
第二行：列标题，具体如下：
* 植株编号（为样带上的每个分株分配）
* 日期（日序；半日期值代表样带调查跨越连续两日）
* 株高（植株高度……）