A positive effect of cumulative intergroup threat on reproductive success

Outgroup conflict is a powerful selective force across all social taxa. Whilst it is well-documented that individual outgroup contests can have a range of direct and indirect fitness consequences, the cumulative pressure of outgroup threats could also potentially impact reproductive success. Here, we use long-term life-history data from a wild population of dwarf mongooses (Helogale parvula) to investigate how intergroup interaction (IGI) rate might influence breeding and offspring survival. IGI rate did not predict the number of litters produced in a season or the inter-litter interval. Unexpectedly, IGI rate was positively associated with the number of pups alive 3 months after emergence from the breeding burrow. This was not due to a difference in how many pups emerged but because those in groups experiencing more IGIs had a higher survival likelihood post-emergence. Detailed natural observations revealed that both IGI occurrence and the threat of intergroup conflict led to more sent..., , , # Data from: A positive effect of cumulative intergroup threat on reproductive success

[https://doi.org/10.5061/dryad.fqz612jzp](https://doi.org/10.5061/dryad.fqz612jzp)

## Description of the data and file structure

See descriptions of the datasets provided in the order that they appear in the manuscript.

IGI = intergroup interaction (see manuscript).

**Life-history datasets**

Datasets which were used to investigate the reproductive consequences of intergroup conflict using long-term life-history data from the Dwarf Mongoose Research Project.

`Breeding_attempts_binomial.csv ` - dataset used to analyse whether IGI rate influenced the number of breeding attempts. Response variable MORE_2_BR_ATTEMPTS (Yes/No), refers to was there more than two breeding attempts in the season. Each row is a breeding attempt by a group. Predictor variables defined below. 

`Interlitter_interval.csv` - dataset used to analyse whether IGI rate influenced the period between the birth of the first and se...,