Is climate change to blame? Increased rainfall reduces emergence of Taiwanosemia hoppoensis (Hemiptera: Cicadidae) in coastal windbreak forests

We found that increased rainfall reduced exuvial numbers and impacted populations of Taiwanosemia hoppoensis from coastal regions, likely due to prolonged soil flooding harming the subterranean nymphs. As climate change advances, long-term monitoring is essential to track cicada populations across taxa and regions, given their important ecological roles., Exuvial sampling and weather data
The study was conducted in the Chengxi windbreaks, dominated by Australian pines (Casuarina equisetifolia). We establishing four plots, spaced about 500 meters apart. In 2015 and 2016, we selected 12 same Australian pines per plot for exuvial sampling. In 2019 and 2022, we retained the original trees if they remained alive; if any had fallen or died, we replaced them with nearby Australian pines and increased the sample size to 15 trees per plot. Surveys were conducted between mid-April and mid-August of the selected year (45 surveys in total: 11 in 2015, 10 in 2016, 13 in 2019 and 11 in 2022). Each session occurred every 5 to 17 days and lasted about 4 hours. Exuviae were collected and counted by hand from the trees and within about a 1-meter radius on the ground. Although we occasionally found exuviae on the ground, their numbers were minimal.
We obtained daily air temperature, relative humidity, daily accumulated rainfall, and monthly rainy day count..., , # Is climate change to blame? Increased rainfall reduces emergence of Taiwanosemia hoppoensis (Hemiptera: Cicadidae) in coastal windbreak forests

[https://doi.org/10.5061/dryad.mgqnk9988](https://doi.org/10.5061/dryad.mgqnk9988)

## Description of the data and file structure

We collected exuviae of *Taiwanosemia hoppoensis* in the Chengxi windbreaks of Taijiang (Tainan, Taiwan) throughout the emergence seasons across four years (2015, 2016, 2019, 2022). We also obtained data on air temperature, relative humidity, accumulated rainfall, and the number of rainy days from the Anping weather station for the period between August 2012 and July 2022. Our study aimed to: (1) assess how weather conditions (temperature, humidity, rainfall) during emergence periods influence exuvial numbers at the emergence season scale, and (2) analyze interannual variations in total annual exuvial counts and identify the weather factors influencing these numbers at the interannual scale.

### Files and variabl...

研究发现，降雨量增加会降低沿海地区埔里台湾蝉（Taiwanosemia hoppoensis）的蝉蜕（exuviae）数量，并对其种群造成负面影响，这可能是因为长时间的土壤浸水会危害地下若虫。随着气候变化加剧，鉴于蝉类具有重要的生态功能，开展长期监测以追踪不同类群和区域的蝉类种群至关重要。
蝉蜕（exuviae）采样与气象数据
本研究在以木麻黄（Casuarina equisetifolia，俗称澳大利亚松）为优势种的城西防风林中开展。共设置4个样地，样地间距约500米。2015年与2016年，我们在每个样地内选取12棵木麻黄进行蝉蜕采样。2019年和2022年，我们保留存活的原有样树；若有样树倒伏或死亡，则用附近的木麻黄替换，并将每个样地的样本量增至15棵。调查于所选年份的4月中旬至8月中旬之间开展（共计45次调查：2015年11次、2016年10次、2019年13次、2022年11次）。每次调查间隔5至17天，持续约4小时。研究人员通过人工方式在样树上及地面约1米半径范围内采集并计数蝉蜕。尽管偶尔会在地面发现蝉蜕，但其数量极少。
我们获取了日气温、相对湿度、日累积降雨量及月降雨日数等数据……
# 气候变化是否为元凶？降雨量增加降低沿海防风林内埔里台湾蝉（半翅目Hemiptera、蝉科Cicadidae）的出土数量
https://doi.org/10.5061/dryad.mgqnk9988

数据与文件结构说明
我们于2015、2016、2019及2022年的蝉类出土季，在台江（中国台湾台南）城西防风林内采集了埔里台湾蝉（Taiwanosemia hoppoensis）的蝉蜕。此外，我们从安平气象站获取了2012年8月至2022年7月期间的气温、相对湿度、累积降雨量及降雨日数数据。本研究的目标为：（1）评估出土季的气象条件（气温、湿度、降雨量）在季尺度上对蝉蜕数量的影响；（2）分析年总蝉蜕数量的年际变化，并识别年际尺度上影响该数量的气象因子。

### 文件与变量……