Dataset for: Effects of local open raceme density, patch size, and distance between patches on pollinator behavior responding to floral display size in Salvia nipponica

Flowers cluster at various spatial scales, so pollinators use information from multiple scales when foraging in natural plant populations. Little is known about the effects of interactions between scales or their relative strength. We examined bumblebee foraging behaviour in a natural population of Salvia nipponica in 10 and 7 patches in 2019 and 2020, respectively. We recorded within-patch factors (display size of racemes and local open raceme densities) and patch-level factors (patch size and distance from the nearest patch) and analysed their relationships with pollinator behaviour. The numbers of visits per raceme and flower were mainly affected by the interaction of patch size and raceme density; they were higher in locations with lower raceme density in larger patches. The ratio of flowers visited to all open flowers in a raceme during a raceme visit, which relates to a bumblebee’s choice to leave a raceme, was mainly affected by the interaction of display size and local open race..., Pollinator observations
Observations of pollinators were carried out on 9 and 7 sunny, warm days during 13 to 27 September 2019 and 16 to 28 September 2020, respectively. On each study day, we observed 4 to 9 racemes of various display sizes growing in patches of various sizes, aiming to observe racemes with 2–8 display sizes from patches of each of the various sizes.
Using video cameras (GZ-RX, JVCKENWOOD, Kanagawa, Japan), we recorded pollinator visits to each of the study racemes for 180 minutes during 0900–1300, when pollinator foraging was active. We recorded 4 to 10 racemes on one day using 4–9 video cameras; the numbers of racemes observed was 124 and 56 and the total observation time was 216 h and 168 h in 2019 and 2020, respectively. In 2019, 1 to 6 racemes belonging to the same ramets were simultaneously observed by single video cameras, whereas in 2020, single racemes were observed by single video cameras. In both years, each of the study racemes was observed on only one day...., , # Data set and R programs for Murakoshi et al. (2024)

Murakoshi, N., Itagaki, T., Oguro, M., and Sakai, S. Effects of floral display size, local open raceme density, patch size, and distance between patches on pollinator behaviour in Salvia nipponica. Scientific Reports 14, 967 (2024).

## Required packages

* **car**
* **lme4**
* **ggplot2**
* **interactions**
* **egg**

## Data set

* **data**: contains data files for the analyses.
* **raceme_visit.csv**: data set used for the analysis of raceme visit (Figs. 2-4). Each row represents a record of a raceme for the 3h observation in one day.
* **raceme_visit**: number of pollinator visits for the raceme during the 3h of observation.
* **open_flower**: number of open flowers of the raceme.
* **local_density**: number of open racemes within a circle with radius of 1.5m around the raceme.
* **patch_size**: number of ramets in the patch where the raceme was observed.
* **n...

花卉呈现出多种空间尺度的集群分布，因此传粉者（pollinator）在自然植物种群中觅食时会利用多尺度的信息。目前学界对不同尺度间交互效应及其相对强度的认知仍较为匮乏。本研究于2019年和2020年分别选取日本丹参（Salvia nipponica）自然种群的10个和7个斑块（patch），对熊蜂（bumblebee）的觅食行为开展观测。我们记录了斑块内因子（总状花序（raceme）的展示大小以及局部开放总状花序密度）和斑块水平因子（斑块大小以及与邻近斑块的距离），并分析这些因子与传粉者行为间的关联。每总状花序和每花朵的访花次数主要受斑块大小与总状花序密度的交互效应影响；在斑块面积更大、总状花序密度更低的区域，访花次数更高。某一总状花序访花期间，该总状花序内被访花朵占所有开放花朵的比例（该比例与熊蜂离开总状花序的决策相关）主要受花展示规模与局部开放总状花序密度的交互效应影响；[原文内容存在截断]

### 传粉者观测
传粉者观测分别于2019年9月13日至27日、2020年9月16日至28日期间的9个和7个晴朗温暖的观测日开展。每个观测日，我们对不同大小斑块中生长的不同展示规模的总状花序开展观测，目标为从各大小斑块中选取具有2~8个展示单元的总状花序进行观测。

我们使用摄像机（GZ-RX，杰伟世建伍（JVCKENWOOD），日本神奈川县）在传粉者觅食活跃时段的09:00~13:00内，对每个研究总状花序的访花行为进行时长180分钟的录制。单日使用4~9台摄像机可录制4~10个总状花序；2019年和2020年分别观测到124个和56个总状花序，总观测时长分别为216小时和168小时。2019年，单台摄像机可同时观测同一生殖株（ramet）上的1~6个总状花序；而2020年，单台摄像机仅观测单个总状花序。两年的研究中，每个总状花序仅在1个观测日被记录。

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## 村越等人（2024）的数据集与R程序代码
Murakoshi, N., Itagaki, T., Oguro, M., and Sakai, S. 日本丹参传粉者行为受花展示规模、局部开放总状花序密度、斑块大小及斑块间距的影响. *Scientific Reports* 14, 967 (2024).

### 所需R包
* **car**：car包
* **lme4**：lme4包
* **ggplot2**：ggplot2包
* **interactions**：interactions包
* **egg**：egg包

### 数据集
* **data**：包含分析所用的数据文件。
* **raceme_visit.csv**：用于总状花序访花分析的数据集（对应图2-4）。每一行代表单日3小时观测中某一总状花序的记录。
* **raceme_visit**：该总状花序在3小时观测期内的传粉者访花次数。
* **open_flower**：该总状花序的开放花朵数量。
* **local_density**：该总状花序周围半径1.5米范围内的开放总状花序数量。
* **patch_size**：该总状花序所在斑块的生殖株数量。
* **n...**