Precipitation-dependent effects of fencing on foliar fungal diseases in grasslands

Plant diseases are ubiquitous in nature and influenced by large herbivores. Fencing is a widely used management strategy and is employed to exclude large herbivores in efforts to restore overgrazed grasslands. However, how fencing affects foliar fungal diseases and whether the effect is climate-dependent remains unclear. Here, we conducted a multi-site experiment across 19 grasslands in China under different climatic conditions to explore the effects of fencing on foliar fungal diseases (i.e., pathogen load) at the community level. We found that fencing increased pathogen load and that this effect was precipitation-dependent and more pronounced in humid areas. In areas with high precipitation, fencing promoted diseases through both pathogen (pathogen spillover) and plant (increased biomass) pathways. We provide empirical evidence of precipitation-dependent plant-pathogen-herbivore interactions at the interface of community and disease ecology. Our study has important application implica..., , , # Precipitation-dependent effects of fencing on foliar fungal diseases in grasslands

[https://doi.org/10.5061/dryad.wh70rxwzz](https://doi.org/10.5061/dryad.wh70rxwzz)

## Description of the data and file structure

Data and Code for \"**[Precipitation-dependent effects of fencing on foliar fungal diseases in grasslands](https://figshare.com/articles/dataset/Data_and_code_for_b_Fencing_promotes_foliar_fungal_diseases_in_more_harsh_areas_via_dramatically_decreasing_plant_species_richness_b_/25041248)**\" includes Supplementary Data1 (Supplementary_Data1.csv) and R code (Fencing_Increases_Foliar_Fungal_Diseases.R)

**A description of each variable name in the Supplementary_Data1.csv**

Treatment: Treatment (Unfenced vs Fenced)

Site: Sampling site (19)

Plot: Sampling plot (i.e. 4 duplication)

Fenced: Whether fencing (0/1)

fencedyear: the duration of fencing

SR: Community species richness

PL: Pathogen load

CWM_fix_PL: Species turnover effect of pathogen load

ITV_PL: Intraspecific var...

植物病害在自然界中普遍存在，且受大型草食动物（large herbivores）调控。围栏是一项被广泛应用的管理策略，常被用于排除大型草食动物，以修复过度放牧的草原生态系统。然而，围栏如何影响叶面真菌病害（foliar fungal diseases），以及其效应是否具有气候依赖性，目前仍未明确。本研究在中国19个不同气候条件的草原开展多站点试验，旨在探讨围栏对群落水平叶面真菌病害（即病原菌负载量（pathogen load））的影响。研究发现，围栏可提升病原菌负载量，且该效应依赖降水，在湿润地区更为显著。在高降水区域，围栏通过病原菌（病原菌溢出（pathogen spillover））与植物（生物量增加）两条途径促进病害发生。本研究为群落生态学与病害生态学交叉领域中依赖降水的植物-病原菌-草食动物互作关系提供了实证证据。本研究具有重要的应用启示……

# 围栏对草原叶面真菌病害的降水依赖性效应
https://doi.org/10.5061/dryad.wh70rxwzz

## 数据与文件结构说明
本研究配套的数据与代码对应成果《围栏对草原叶面真菌病害的降水依赖性效应》（https://figshare.com/articles/dataset/Data_and_code_for_b_Fencing_promotes_foliar_fungal_diseases_in_more_harsh_areas_via_dramatically_decreasing_plant_species_richness_b_/25041248）包含补充数据集1（Supplementary_Data1.csv）与R代码文件（Fencing_Increases_Foliar_Fungal_Diseases.R）。

### Supplementary_Data1.csv 各变量名称说明
- 处理方式（Treatment）：采样处理类型，分为未围栏与围栏两组
- 采样站点（Site）：共19个采样站点
- 采样样地（Plot）：采样样地，即4次重复
- 是否围栏（Fenced）：围栏状态标识，0代表未围栏，1代表围栏
- 围栏持续时长（fencedyear）：围栏设置的持续时长
- 群落物种丰富度（SR，Community species richness）：群落物种丰富度
- 病原菌负载量（PL，Pathogen load）：病原菌负载量
- 病原菌负载量的物种周转效应（CWM_fix_PL，Species turnover effect of pathogen load）：病原菌负载量的物种周转效应
- 病原菌负载量的种内变异（ITV_PL，Intraspecific var...）：Intraspecific var...