How does ageing affect life history traits and cold tolerance in summer- vs winter-acclimated invasive fruit flies?

All species exhibit functional senescence, a process related to ageing that is influenced by both abiotic and biotic factors. Ageing leads to a decline in function and drives phenotypic senescence, marked by a reduction in phenotypic performance over time. In temperate regions, overwintering species must survive and age for several months often facing challenging conditions with low food availability and chilling injuries. Yet, overwintering species might enter a state of dormancy, which, can extend longevity and enhance stress tolerance. Evaluating the performance of the overwintering survivors is crucial for predicting the population dynamics, especially for significant pests like invasive fruit flies. At the end of winter, the surviving fly populations, which are expected to rebuild new generations, are likely in a dormant state (i.e., reproductive quiescence) and, are likely senescent. However, their performance has not been thoroughly described. This study aims to decipher the..., , , # How does ageing affect life history traits and cold tolerance in summer- vs winter-acclimated invasive fruit flies?

[https://doi.org/10.5061/dryad.m37pvmdcs](https://doi.org/10.5061/dryad.m37pvmdcs)

## Description of the data and file structure

### Files and variables

#### File: CTmin\_ageing.csv

**Description:** 

##### Variables

* Ctmin: values of minimum critical temperature in °C
* cdt: complete code of the sample
* morph: type of phenotypes
* age: age class of flies
* sex: male or female

#### File: Ageing\_starvation\_resistance.csv

**Description:** 

##### Variables

* condition: complete code of the sample
* time: time to death
* status: 1 for dead
* morph: type of phenotype
* sex: male or female
* age: age class of flies

#### File: Ageing\_fecundity.csv

**Description:** 

##### Variables

* days: age of females when they start ovipositing
* day_end: age of females when they stop ovipositing
* age: age class of flies
* mix: description of the cross
* cross: phenotype ...