Island biogeography and life-history traits stabilize island bird communities

Islands are model systems for testing and developing ecological theories. Despite extensive research on island biodiversity, the importance of the biogeographic context for biodiversity–stability relationships is poorly understood. We addressed this knowledge gap by integrating the Equilibrium Theory of Island Biogeography (ETIB) with a functional perspective to explore island biodiversity–stability relationships. We conducted annual breeding bird surveys across 36 land-bridge islands in eastern China over 13 years. Using this long-term dataset, we quantified avian temporal community stability (and its components of population stability and population asynchrony) and tested how island biogeographic factors (i.e., island area, isolation, colonization rates, and extinction rates) and biodiversity facets (i.e., species richness, average population size, and life-history traits) interact to influence stability. We found larger islands supported higher species richness due to colonization–ex..., , , # Data from: Island biogeography and life-history traits stabilize island bird communities

[https://doi.org/10.5061/dryad.tmpg4f56x](https://doi.org/10.5061/dryad.tmpg4f56x)

**File:** Final_data.csv

* Island ID, community stability (log-transformed; com.stab.log)
* population stability (log-transformed; pop.stab.log)
* population asynchrony (pop.asyn)
* statistical-averaging effect (log-transformed; statistical.log)
* compensatory effect (log-transformed; compensatory.log)
* species richness (log-transformed; SR.log)
* fast-slow trait diversity (FDis fast-slow)
* fast-slow trait dominance (CWM fast-slow)
* island area (log-transformed; A.log)
* Isolation (distance to the mainland, Dm)
* colonization rates (Col)
* extinction rates (Ext)
* community-weighted mean of hand-wing index (CWM HWI)
* average population size (log-transformed; average_population_size.log) on 36 study islands in the Thousand Island Lake, China.,

岛屿是检验与发展生态学理论的模式系统（model system）。尽管针对岛屿生物多样性已开展了大量研究，但生物地理背景在生物多样性-稳定性关系中的重要性仍未得到充分阐释。我们通过将岛屿生物地理学平衡理论（Equilibrium Theory of Island Biogeography, ETIB）与功能生态学视角相结合，探索岛屿生物多样性与稳定性之间的关系，以填补这一认知空白。
我们在13年时间里，对中国东部的36个陆桥岛屿开展了年度繁殖鸟类调查。依托该长期数据集，我们量化了鸟类群落的时间稳定性（及其组分：种群稳定性与种群异步性），并检验了岛屿生物地理因子（即岛屿面积、隔离度、定植率与灭绝率）与生物多样性维度（即物种丰富度、平均种群大小与生活史性状）如何相互作用，进而影响群落稳定性。
我们发现，面积更大的岛屿因定植-……（原文存在截断）支撑更高的物种丰富度。

# 数据来源：《岛屿生物地理学与生活史性状稳定岛屿鸟类群落》
DOI: https://doi.org/10.5061/dryad.tmpg4f56x
**文件：Final_data.csv**
该数据集包含以下变量：
- 岛屿编号（Island ID）
- 群落稳定性（经对数转换，记为com.stab.log）
- 种群稳定性（经对数转换，记为pop.stab.log）
- 种群异步性（pop.asyn）
- 统计平均效应（经对数转换，记为statistical.log）
- 补偿效应（经对数转换，记为compensatory.log）
- 物种丰富度（经对数转换，记为SR.log）
- 快慢生活史性状多样性（FDis fast-slow）
- 快慢生活史性状优势度（群落加权平均值，CWM fast-slow）
- 岛屿面积（经对数转换，记为A.log）
- 隔离度（与大陆的距离，记为Dm）
- 定植率（Col）
- 灭绝率（Ext）
- 翼手指数群落加权平均值（CWM HWI）
- 平均种群大小（经对数转换，记为average_population_size.log），所有变量均来自中国千岛湖（Thousand Island Lake）的36个研究岛屿。