Data for: A novel cricket morph has diverged in song and wing morphology across island populations

Divergence of sexual signals between populations can lead to speciation, yet opportunities to study the immediate aftermath of novel signal evolution are rare. The recent emergence and spread of a new mating song, purring, in Hawaiian populations of the Pacific field cricket (Teleogryllus oceanicus) allows us to investigate population divergence soon after the origin of a new signal. Male crickets produce songs with specialized wing structures to attract mates from afar (calling) and entice them to mate when found (courtship). However, in Hawaii, these songs also attract an eavesdropping parasitoid fly (Ormia ochracea) that kills singing males. The novel purring song, produced with heavily modified wing morphology, attracts female crickets but not the parasitoid fly, acting as a solution to this conflict between natural and sexual selection. We’ve since observed increasing numbers of purring males across Hawaii. In this integrative field study, we investigated the distribution of purrin..., , , # README for data files accompanying Gallagher et al. (2023) “A novel cricket morph has diverged in song and wing morphology across island populations ”

A novel cricket morph has diverged in song and wing morphology across island populations

## Data File #1: field\_data.csv

A data frame with phenotypic data from field-collected male Teleogryllus oceanicus crickets. Data include geometric morphological measures of wings and song data from calling and courtship songs. Some individuals have empty cells for certain types of data due to incomplete sampling (not all males had wing, calling, and courtship data).

### Description of the data and file structure

***

Descriptions of column names:
maleID: unique male identifier.
population: population.
numID: numeric ID, unique within population.
wingPC1–PC3: values for first three PCA axes from morphometric analyses.
Scraper: binary presence/absence of scraper.
Mirror: binary presence/absence of mirror.
harp\_width: Procrustes distance (eucli...