Increasing temperatures and heatwave durations negatively affect the performance of a dietary generalist

Climate variability has increased in recent decades, and this trend is predicted to continue. Globally, there is a rise in extreme temperatures, such as heatwaves, which are strengthening in both intensity and frequency. As ectotherms, insects are especially affected by temperature variation. Insects are the most speciose group of animals and important members of most terrestrial ecosystems, providing critical ecosystem services. Most studies of global change have investigated only a single stressor, yet insects rarely experience one stressor at a time. Two stressors that co-occur are heatwaves and warming temperature regimes; thus, it is important that we study their interaction and whether diet may help mitigate negative effects from these stressors. We used a dietary generalist herbivore, the moth fall webworm Hyphantria cunea (Lepidoptera; hereafter, FW), and conducted a factorial experiment to test the separate and interactive effects of temperature warming, heatwave dura..., , # Increasing temperatures and heatwave durations negatively affect the performance of a dietary generalist

Dataset DOI: [10.5061/dryad.zpc866tnc](10.5061/dryad.zpc866tnc)

## Description of the data and file structure

File: CleanDataFromSummer2021V14(2).xlsx

All of our information/metadata for each column is located in the second tab labeled \"metadata\" in the file CleanDataFromSummer2021V14.xlsx.

Column Descriptions:

* Ind_ID: Individual identification number assigned number to each larva
* Host: Host plant on which each larva fed throughout development; Cherry is choke cherry, and willow is black willow
* Matriline: Maternal line identification number
* Hatch_date: Date that sibling cluster hatched.
* Sex: Sex of each pupa is determined by examining the location of the genital split
* Pupa_Mass: Pupal mass taken using a microbalance 30 days after pupation in mg
* Pupa_Date: Date that the larva pupated
* Death_Date: Date that the larva died
* Survival_binomial: 0= died bef...,