Bivalve mortality and burrowing behavior under compound stress of salinity and temperature: Data from a mesocosm experiment

The frequency of extreme weather events, such as heatwaves and flash floods, is increasing due to global climate change. While many studies have investigated the potential impact of high temperature and salinity fluctuations on benthic animals in tidal flats, few have explored how these stressors affect the relationship between native and introduced species, including the potential establishment of introduced species in response to extreme short-term events. This study investigates the compound effects of heatwaves and salinity changes on the survival and burrowing behaviors of native and introduced bivalve species. Specifically, the introduced species Ruditapes philippinarum and the native species Cerastoderma edule were cultivated in four salinity settings under five temperature blocks using a mesocosm experiment. The results show that R. philippinarum exhibits lower mortality than C. edule under temperatures exceeding 35 °C, especially those in lower salinity levels of 10 and 20 PSU...., , , # Bivalve mortality and burrowing behavior under compound stress of salinity and temperature: Data from a mesocosm experiment

[https://doi.org/10.5061/dryad.w0vt4b93n](https://doi.org/10.5061/dryad.w0vt4b93n)

## Description of the data and file structure

This repository archives the data and code associated with the manuscript titled, “Compound extreme events reshuffle the stacked odds in the gamble between native and introduced bivalves”. The materials are organized into two main components to support transparency and reproducibility:

* **dataScript_figsTbs.zip**: A compressed folder containing the raw data and R scripts used to generate the figures and tables in the manuscript.
* **neutral_process_model.R**: A standalone R script that runs the neutral process model described in the paper.

Below is a breakdown of the folder contents and subdirectory structure.

### Files and directories

#### File: dataScript\_figsTbs.zip

This compressed archive contains experimental data and R s...,