DOI: 10.5061/dryad.x95x69prs
title: Data from: movement or plasticity: acoustic responses of a torrent frog to stream geophony

description: Vocalization is the main form of communication in many animals, including
 frogs, which commonly emit advertisement calls to attract females and
 maintain spacing. In noisy environments such as streams, mechanisms to
 maximize signaling efficiency may include vocal plasticity and/or movement
 of individuals to quieter sections, but which strategy is used is still
 uncertain. We investigated the influence of stream geophony on the
 advertisement call of the torrent frog Hylodes perere in the Atlantic
 Rainforest, southeastern Brazil. In a mark-recapture study, we tested if
 males remain in their territories and thus adjust their advertisement
 calls to maximize their communication. We ran mixed linear and generalized
 models to verify the relation of call parameters and stream geophony, body
 size and environmental temperature. We found that males remained in the
 same location across time, increased call intensity in noisier
 environments but did not reduce call effort. Males also increased the
 dominant frequency in these situations, suggesting a modulation in this
 parameter. Our results indicate that territoriality is an important factor
 to males to increase call intensity to surpass stream noise instead of
 repositioning along the stream. However, because call effort was
 maintained, we suggest that sexual selection is crucial in this system,
 favoring males that better detect others and adjust their call efficiency.
 This is the first study to evaluate simultaneously frog movements and
 adaptations to geophony, which contributes to the investigation of the
 concomitant environmental and sexual selective pressures in species that
 communicate in noisy environments.
description: # Data from: movement or plasticity: acoustic responses of a torrent frog
 to stream geophony We are
 providing the datasets (h_22.xlsx and ff.xlsx) and the R script
 (TurinandNali_script.R). ## Description of the data and file structure The
 columns in the dataset h_22.xlsx refer to: ind = individuals call =
 advertisement calls stream = streams section = stream sections note_call =
 note within calls call_dur_s = call duration (s) note_dur_s = note
 duration (s) Freq_5_Hz = frequency 5% (Hz) Freq_95_Hz = frequency 95% (Hz)
 Freq_P_Hz = dominant frequency (Hz) call_int_s = interval between calls
 (s) note_int_s = interval between notes (s) note_rate_s = note rate
 (notes/s) call_eff = call effort (ratio of sound to silence within a call)
 (%) svl_mm = snout-vent length (mm) bm_g = body mass (g) air_temp_C = air
 temperature (ºC) wat_temperature = water temperature (ºC) SPL_c_dB = sound
 pressure level of calls (dB) already corrected by the recording distance
 SPL_r_dB = sound pressure level of the stream (dB) already corrected by
 the recording distance The columns in the ff.xlsx dataset refer to: ind =
 individuals FH_Hz = dominant frequency of the first harmonic band (Hz)
 svl_mm = snout-vent length (mm) bm_g = body mass (g) wat_temperature =
 water temperature (ºC) SPL_r_dB = sound pressure level of the stream (dB)
 already corrected by the recording distance notes_meas = number of notes
 measured for each individual calls_meas = number of calls measured for
 each individual