DOI: 10.5061/dryad.dncjsxm73
title: Data from: Temperature effects on interspecific eavesdropping in the wild

description: Mating signals are targets of conspecific signal recognition and sexual
 selection, but are also subject to abiotic temperature effects and to
 biotic interspecific eavesdroppers. In crickets, the male calling song
 becomes faster at warmer temperatures, and female crickets’ recognition of
 male song tracks temperature in a coordinated manner, termed ‘temperature
 coupling’. But female crickets are not the only ecologically relevant
 listeners: some cricket species are parasitized by Ormia ochracea, a
 parasitoid fly which finds its cricket hosts by eavesdropping on male
 cricket song. How temperature affects parasitoid fly phonotaxis to song is
 largely unexplored, with only one previous study conducted under field
 conditions. Here we explore six possible patterns of thermal effects on
 fly responses to cricket song, including temperature coupling, using field
 playbacks of synthetic Gryllus lineaticeps songs designed to be
 species-typical at various temperatures. We find that temperature does
 affect fly response, but that the temperature deviation of songs from
 ambient does not impact numbers of flies caught. We extend this finding by
 comparing the temperatures of the air and ground to show that temperature
 coupling is unlikely to be effective given microhabitat variation and
 differential rates of cooling in the evening hours when flies are most
 active. Our results can be interpreted more broadly to suggest temperature
 effects on intraspecific communication systems may be more tightly coupled
 than are effects on interspecific eavesdropping, and variation in thermal
 microhabitats in the field make it difficult to translate laboratory
 physiological responses to natural selection in the wild.
description: Data collected from field playback of cricket song to parasitoid
 flies. Data include field sampling information as well as numbers of flies
 attracted per playback. Processing is minimal; raw data
 are presented. Basic functions (Mean, SD, MIN, MAX) calculated in Excel.
 Histogram and scatterplot from R.
description: # Data from: Temperature effects on interspecific eavesdropping in the
 wild
 [https://doi.org/10.5061/dryad.dncjsxm73](https://doi.org/10.5061/dryad.dncjsxm73) ## Description of the data and file structure ### Files and variables #### File: EavesdroppingData\_for\_Dryad.xlsx **Description:** Playback Data ##### Variables * Site - one of two unique locations, Las Virgenes (LV, 34.104, -118.711), and Cheesebro (CH, 34.150, -118.735). * Night - each unique field collection event * Year - 2020, or 2021 * Date - specific date of fieldwork * Replicate - unique replicate of single complete trial * Trial - within a given Night, trial 1, 2, or 3 * AmbientStart - temperature at start of 15 minute trial, in degrees C * AmbientEnd - temperature at end of 15 minute trial, in degrees C * AmbientPlay - baseline ambient temperature to assign playbacks, in degrees C * Song - which song variant was played, in degrees C from AmbientPlay * Flies - number of flies caught (response variable) * AmbientMean - average of AmbientStart and AmbientEnd, in degrees C * SongAdj - actual temperature deviation of Song from AmbientMean, in degrees C * change in temp - difference between AmbientStart and AmbientEnd, in degrees C **Description:** Air-Ground Temperature **Variables** Air Temperature, in degrees C Ground Temperature, in degrees C