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2015 ; 10
(8
): e0134123
Nephropedia Template TP
gab.com Text
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English Wikipedia
Ultrasonic Vocalizations of Male Mice Differ among Species and Females Show
Assortative Preferences for Male Calls
#MMPMID26309246
Musolf K
; Meindl S
; Larsen AL
; Kalcounis-Rueppell MC
; Penn DJ
PLoS One
2015[]; 10
(8
): e0134123
PMID26309246
show ga
Male house mice (Mus musculus) emit ultrasonic vocalizations (USVs) during
courtship, which attract females, and we aimed to test whether females use these
vocalizations for species or subspecies recognition of potential mates. We
recorded courtship USVs of males from different Mus species, Mus musculus
subspecies, and populations (F1 offspring of wild-caught Mus musculus musculus,
Mus musculus domesticus (and F1 hybrid crosses), and Mus spicilegus), and we
conducted playback experiments to measure female preferences for male USVs. Male
vocalizations contained at least seven distinct syllable types, whose frequency
of occurrence varied among species, subspecies, and populations. Detailed
analyses of multiple common syllable types indicated that Mus musculus and Mus
spicilegus could be discriminated based on spectral and temporal characteristics
of their vocalizations, and populations of Mus musculus were also distinctive
regardless of the classification model used. Females were able to discriminate
USVs from different species, and showed assortative preferences for conspecific
males. We found no evidence that females discriminate USVs of males from a
different subspecies or separate populations of the same species, even though our
spectral analyses identified acoustic features that differ between species,
subspecies, and populations of the same species. Our results provide the first
comparison of USVs between Mus species or between Mus musculus subspecies, and
the first evidence that male USVs potentially facilitate species recognition.