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Statements

Subject Item
n2:RIV%2F00027014%3A_____%2F13%3A%230001776%21RIV14-MZE-00027014
rdf:type
skos:Concept n5:Vysledek
rdfs:seeAlso
http://www.vuzv.cz/sites/File/_privat/13003.pdf
dcterms:description
Considerable attention is currently devoted to understanding acoustic mechanisms underlying animal responses to heterospecific vocalizations. A further complication ensues when the response of two species is asymmetrical. For example, white-tailed deer females approach a speaker only when it plays distress calls of conspecific fawns. Mule deer females approach when hearing distress calls of either white-tailed deer or mule deer. We hypothesized that selective species such as white-tailed deer respond to traits distinctive of their species and less-discriminating species such as mule deer respond to traits shared across species. Through an acoustic analysis of neonatal distress calls of six ungulate species, we found that mean and maximum fundamental frequency (F0) enabled the greatest statistical discrimination, and the pattern of frequency modulation (FM) was shared across species. Contrary to our initial hypothesis, playback experiments revealed that females of the two species respond similarly to manipulation of F0 and FM. F0 was critical to the response of females from both species, which tolerated the same relative F0 variation (approx. 0.6-1.4x the mean F0 for conspecific fawns). This discovery suggests that mule deer females only appear less discriminating because they are tuned to the higher F0 of mule deer distress calls (964 Hz vs. 546 Hz), resulting in a larger absolute response range that encompasses the F0 produced by white-tailed deer fawns. We propose that animals will have larger absolute response ranges, and therefore appear to be less discriminating, when they belong to a species that produces higher F0 calls. Considerable attention is currently devoted to understanding acoustic mechanisms underlying animal responses to heterospecific vocalizations. A further complication ensues when the response of two species is asymmetrical. For example, white-tailed deer females approach a speaker only when it plays distress calls of conspecific fawns. Mule deer females approach when hearing distress calls of either white-tailed deer or mule deer. We hypothesized that selective species such as white-tailed deer respond to traits distinctive of their species and less-discriminating species such as mule deer respond to traits shared across species. Through an acoustic analysis of neonatal distress calls of six ungulate species, we found that mean and maximum fundamental frequency (F0) enabled the greatest statistical discrimination, and the pattern of frequency modulation (FM) was shared across species. Contrary to our initial hypothesis, playback experiments revealed that females of the two species respond similarly to manipulation of F0 and FM. F0 was critical to the response of females from both species, which tolerated the same relative F0 variation (approx. 0.6-1.4x the mean F0 for conspecific fawns). This discovery suggests that mule deer females only appear less discriminating because they are tuned to the higher F0 of mule deer distress calls (964 Hz vs. 546 Hz), resulting in a larger absolute response range that encompasses the F0 produced by white-tailed deer fawns. We propose that animals will have larger absolute response ranges, and therefore appear to be less discriminating, when they belong to a species that produces higher F0 calls.
dcterms:title
Fundamental frequency is key to response of female deer to juvenile distress calls Fundamental frequency is key to response of female deer to juvenile distress calls
skos:prefLabel
Fundamental frequency is key to response of female deer to juvenile distress calls Fundamental frequency is key to response of female deer to juvenile distress calls
skos:notation
RIV/00027014:_____/13:#0001776!RIV14-MZE-00027014
n5:predkladatel
n20:ico%3A00027014
n3:aktivita
n19:S n19:Z
n3:aktivity
S, Z(MZE0002701404)
n3:cisloPeriodika
neuvedeno
n3:dodaniDat
n7:2014
n3:domaciTvurceVysledku
n11:5269849
n3:druhVysledku
n17:J
n3:duvernostUdaju
n6:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
75901
n3:idVysledku
RIV/00027014:_____/13:#0001776
n3:jazykVysledku
n13:eng
n3:klicovaSlova
Acoustic analysis, Heterospecific distress calls, Mother-offspring recognition, Species interactions, Ungulates
n3:klicoveSlovo
n8:Ungulates n8:Acoustic%20analysis n8:Species%20interactions n8:Mother-offspring%20recognition n8:Heterospecific%20distress%20calls
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[B58AA36F410F]
n3:nazevZdroje
Behavioural Processes
n3:obor
n10:EG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n7:2013
n3:svazekPeriodika
92
n3:tvurceVysledku
Riede, Tobias Kotrba, Radim Teichroeb, Lisa J. Lingle, Susan
n3:wos
000314557300003
n3:zamer
n12:MZE0002701404
s:issn
0376-6357
s:numberOfPages
9
n15:doi
10.1016/j.beproc.2012.09.011