SSgrunts {IDmeasurer}R Documentation

Domestic pig, Sus scrofa domestica - piglet grunts

Description

Piglet grunts were recorded in 2014 and 2015 at the research farm of Institute of Animal Science in Prague. To elicit the calls piglets were separated from the litter and sow and were recorded in social isolation in age of 25-30 days after birth from the distance of 1m. Piglets were recorded opportunistically during the day. The original dataset comprised 97 piglets coming from 13 different litters and 10 calls per individual piglet.

Variables were selected to be the most informative regarding the individual identity by the reference study. Variables were extracted using the LMA 2008 software for analysis of animal sounds by Kurt Hammerschmidt.

Usage

SSgrunts

Format

A data frame with 330 rows and 8 variables:

id

factor, identity code of an individual emitting the call

fp1amean

mean amplitude of the 1st frequency peak, relative amplitude

q1mean

mean frequency of the 1st DFreqA; equivalent to q25 in ANspec, CCspec, and LAhighweewoo, in Hertz

csmean

mean correlation coefficient of successive time segments

tonalF0

estimation of segments with detectable fundamental frequency, in percents

q3mean

mean frequency of the 3nd DFreqA; equivalent to q75 in ANspec, CCspec, and LAhighweewoo, in Hertz

noise

percentage of noise time segments, in percents

ranmean

mean frequency range, in Hertz

q2mean

mean frequency of the 2nd DFreqA; equivalent to q50 in ANspec, CCspec, and LAhighweewoo, in Hertz

df2pr

percentage of time segments where 2nd DomFreqB detected, in percents

q2min

min frequency of the 2nd DFreqA, in Hertz

Source

Syrova, M., Policht, R., Linhart, P., & Spinka, M. (2017). Ontogeny of individual and litter identity signaling in grunts of piglets. The Journal of the Acoustical Society of America, 142(5), 3116-3121. doi:10.1121/1.5010330

[Package IDmeasurer version 1.0.0 Index]