Vocal cues to male androgen levels in giant pandas.
Little is known about the potential of non-human mammal vocalizations to signal information on the hormonal status of the caller. In the current study, we used endocrine data and acoustic analyses to determine whether male giant panda bleats provide reliable information about the caller's current androgen levels. Our results revealed significant relationships between acoustic features of male giant panda bleats and the caller's faecal androgen metabolite concentrations. To our knowledge, this constitutes the first demonstration that the acoustic structure of a non-human mammal call has the potential to yield information about the caller's current androgen levels. We go on to discuss the anatomical basis for our findings and the potential functional relevance of signalling information on male androgen levels in giant panda sexual communication.
Charlton
Benjamin D
BD
Carnivores, Zoo Atlanta, 800 Cherokee Avenue, Atlanta, GA, USA. bcharlton@zooatlanta.org
Keating
Jennifer L
JL
Kersey
David
D
Rengui
Li
L
Huang
Yan
Y
Swaisgood
Ronald R
RR
D000728:Androgens / Q000032:analysis / Q000378:metabolism*; D000818:Animals; D005243:Feces / Q000737:chemistry*; D008297:Male; D001503:Ursidae / Q000378:metabolism*; D014828:Vocalization, Animal / Q000502:physiology*
D000728:Androgens
Exp Mol Pathol. 1980 Aug;33(1):15-24
7409083
J Acoust Soc Am. 2009 Nov;126(5):2721-32
19894848
Theriogenology. 2008 May;69(8):946-52
18359065
J Acoust Soc Am. 2003 Jun;113(6):3390-402
12822809
Physiol Behav. 2008 Mar 18;93(4-5):783-8
18155094
Q Rev Biol. 2009 Mar;84(1):3-27
19326786
J Voice. 2001 Dec;15(4):553-7
11792031
Proc Biol Sci. 2006 Jan 7;273(1582):83-9
16519239
Ann Biomed Eng. 2007 Aug;35(8):1471-83
17453348
Ann Otol Rhinol Laryngol. 1985 Nov-Dec;94(6 Pt 1):634-40
4073745