Data for: Shifts in plant-invertebrate interactions between wild and ex-situ conservation populations of a critically endangered tree

Ex-situ conservation is an effective approach to prevent the extinction of endangered species. Biotic interactions (eg herbivory and pollination) are critical to ex-situ conservation success, including plant establishment, survival, and reproduction. However, shifts in biotic interactions between wild and ex-situ populations are still poorly understood.  We compared herbivory and pollination characteristics between the only wild population (WP) and three ex-situ populations (LP, local population, nearby WP; NP, north population, ca. 850 km; and SP, south population, ca. 750 km) of a critically endangered tree species (Sinojackia huangmeiensis) to explore the latitudinal changes in plant-invertebrate interactions.  Larvae of the Limacodidae family were the dominant herbivores in WP, LP, and NP, while the only herbivore observed in SP was a snail. Compared to WP, the leaf herbivory rate was unchanged in LP but decreased in NP and SP. Leaf defense traits (total phenols, tannins, leaf thick..., , , # Data for: Shifts in plant-invertebrate interactions between wild and ex-situ conservation populations of a critically endangered tree

[https://doi.org/10.5061/dryad.vhhmgqp28](https://doi.org/10.5061/dryad.vhhmgqp28)

## Description of the data and file structure

The data in this file includes leaf herbivory rate, total phenols, tannins, leaf thickness, leaf dry matter content, pollinator visiting frequency, number of flowers per branch, fruit mass, number of fruits per branch, and fruit set.

All these variables are observed or measured from one wild and three ex-situ conservation populations of an endangered tree species endemic to central China.

There are four populations.

WP: Wild population

LP: Local ex-situ population

NP: North ex-situ population

SP: South ex-situ population

The sample sizes of different variables of each population are varied. The sample size of leaf herbivory rate, total phenols, tannins, leaf thickness, and leaf dry matter content is 15. The sample si...

迁地保护（ex-situ conservation）是防止濒危物种灭绝的有效手段。生物间相互作用（如植食作用与传粉作用）对迁地保护的成功至关重要，其作用涵盖植物定植、存活与繁殖等环节。但目前学界对野生种群与迁地保护种群之间的生物相互作用变化仍知之甚少。我们针对极危树种黄梅秤锤树（Sinojackia huangmeiensis）的1个野生种群（WP）与3个迁地保护种群——即当地种群LP（邻近野生种群）、北方种群NP（距离约850km）以及南方种群SP（距离约750km）——对比了其植食与传粉特征，以探究植物-无脊椎动物相互作用的纬度变化规律。在WP、LP与NP种群中，刺蛾科（Limacodidae）幼虫为优势植食类群；而SP种群中唯一观测到的植食者为蜗牛。相较于野生种群WP，LP种群的叶片植食率无显著变化，而NP与SP种群的叶片植食率均有所降低。叶片防御性状（总酚类物质、单宁、叶片厚度……）

# 数据关联：《极危树种野生与迁地保护种群间植物-无脊椎动物相互作用的变化》
https://doi.org/10.5061/dryad.vhhmgqp28

## 数据与文件结构说明
本数据集包含叶片植食率、总酚类物质含量、单宁含量、叶片厚度、叶片干物质含量、传粉者访花频率、单枝花朵数、果实质量、单枝果实数以及坐果率等指标。
所有变量均采集自中国中部特有濒危树种的1个野生种群与3个迁地保护种群。
本次研究共包含4个种群：
WP：野生种群
LP：当地迁地种群
NP：北方迁地种群
SP：南方迁地种群
各种群不同变量的样本量存在差异。其中叶片植食率、总酚类物质含量、单宁含量、叶片厚度及叶片干物质含量的样本量为15，其余变量的样本量[原文未完整给出]。