The effect of environmental variation on the relationship between survival and risk-taking behaviour in a migratory songbird

Temporal changes in environmental conditions may play a major role in the year-to-year variation in fitness consequences of behaviours. Identifying environmental drivers of such variation is crucial to understand the evolutionary trajectories of behaviours in natural contexts. However, our understanding of how environmental variation influences behaviours in the wild remains limited. Using data collected over 14 breeding seasons from a collared flycatcher (Ficedula albicollis) population, we examined the effect of environmental variation on the relationship between survival and risk-taking behaviour, a highly variable behavioural trait with great evolutionary and ecological significance. Specifically, using annual recapture probability as a proxy of survival, we evaluated the specific effect of predation pressure, food availability and mean temperature on the relationship between annual recapture probability and risk-taking behaviour (measured as flight initiation distance, FID). We fou..., , , # The effect of environmental variation on the relationship between survival and risk-taking behaviour in a migratory songbird

[https://doi.org/10.5061/dryad.jdfn2z3ht](https://doi.org/10.5061/dryad.jdfn2z3ht)

The data underlying this study were collected between 2007 and 2021. In the dataset, each row represents a different Collared flycatcher (Ficedula albicollis) male with information about its identity (i.e., ring), age, territory (i.e., plot and nestbox number), risk-taking behaviour (i.e, FID) and survival to the next year (i.e., recapture probability). The dataset also contains three environmental variables (i.e., predation pressure, temperature and food availability) describing the conditions Collared flycatcher males had to face in a given year.

## Description of the data and file structure

Description of the variables:

year: year of FID tests

date: date of FID tests; e.g., 417 is the 17th of April, and 504 is the 4th of May

date_st: standardised date of FID tests (the n...

环境条件的时间动态变化可能在行为的适合度后果的年际变异中发挥核心作用。明确此类变异的环境驱动因子，对于理解自然情境下行为的演化轨迹至关重要。然而，当前学界对野外环境变异如何影响动物行为的认知仍较为有限。

本研究基于对一个领姬鹟（Ficedula albicollis）种群长达14个繁殖季的观测数据，探究了环境变异对生存与冒险行为之间关系的影响——冒险行为是一类兼具重要演化与生态学意义的高变异性状。具体而言，我们以年度重捕概率作为生存的替代指标，评估了捕食压力、食物可获得性与平均温度这三类环境因子，对年度重捕概率与以逃逸起始距离（flight initiation distance, FID）衡量的冒险行为之间关系的特异性效应。

（原文研究内容未完整）
# 迁徙鸣禽生存与冒险行为关系中的环境变异效应

https://doi.org/10.5061/dryad.jdfn2z3ht

本研究的基础数据采集于2007年至2021年间。本数据集中每一行代表一只不同的领姬鹟（Ficedula albicollis）雄性个体，包含其个体标识（即脚环编号）、年龄、领地信息（即样地与巢箱编号）、冒险行为（即FID）以及次年生存情况（即重捕概率）。数据集同时包含三类环境变量：捕食压力、温度与食物可获得性，用以描述领姬鹟雄性个体在对应年份所面临的环境条件。

## 数据与文件结构说明

### 变量描述
- year：逃逸起始距离测试的年份
- date：逃逸起始距离测试的具体日期；例如，417代表4月17日，504代表5月4日
- date_st：逃逸起始距离测试的标准化日期（原文未完整）