Vocalization during copulation behavior in greater horseshoe bats, Rhinolophus ferrumequinum

Liu, Ying; Metzner, Walter; Feng, Jiang

doi:10.1007/s11434-013-5793-3

Cited by 6 publications

(4 citation statements)

References 38 publications

(38 reference statements)

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“…Although there have been studies on sexual dimorphism of bat communication sounds (Kanwal et al 1994;Liu et al 2013;Ma et al 2006), many studies have been mainly focused on the sexual dimorphism of orientation pulses in the CF-FM bat by analyzing the predominant CF (Jones et al 1992Knörnschild et al 2012;Russo et al 2001;Feng et al 2003;Siemers et al 2005;Suga et al 1987). In the present study, we have clearly shown that sexual dimorphism of echolocation pulses in the CF-FM bat can also be found in other multiple pulse parameters.…”

Section: Parameterssupporting

confidence: 61%

Sexual dimorphism in echolocation pulse parameters of the CF-FM bat, Hipposideros pratti

Dai

et al. 2015

Zool. Stud.

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Background: Previous studies of sexual dimorphism in the echolocation pulses of the constant frequency-frequency modulating (CF-FM) bat have been mainly concentrated on the difference in the frequency of the CF component of the predominant second harmonic while neglected other pulse parameters. However, recent studies have shown that other pulse parameters of the predominant second harmonic are also biologically significant to the bat hunting. To complement and advance these studies, we have examined sexual dimorphism of multiple parameters (e.g., duration, frequency, bandwidth of the FM component, and repetition rate of emitted pulses) of the echolocation pulses of the CF-FM bat, Hipposideros pratti. Results: Our studies of the predominant second harmonic show that on average the male bat has higher frequency of the CF component, wider FM bandwidth, and higher pulse repetition rate while the female bat has longer duration of the CF and FM components.

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Section: Parameterssupporting

confidence: 61%

Sexual dimorphism in echolocation pulse parameters of the CF-FM bat, Hipposideros pratti

Dai

et al. 2015

Zool. Stud.

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“…Although it’s been shown that horseshoe bats have a rich communication repertoire (e.g. [32] ), recent work suggests that typical echolocation calls are used by males before copulation [33] , supporting the use of echolocation calls as stimuli presented to the tested animals. Previous work has demonstrated that R. mehelyi was able to recognize the gender of conspecifics from their calls only, providing evidence that cues on the gender of the emitter are encoded in echolocation signals [19] , hence we considered that the animals tested recognized acoustically the gender of the call emitter.…”

Section: Methodsmentioning

confidence: 93%

Female Mate Choice Can Drive the Evolution of High Frequency Echolocation in Bats: A Case Study with Rhinolophus mehelyi

et al. 2014

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Animals employ an array of signals (i.e. visual, acoustic, olfactory) for communication. Natural selection favours signals, receptors, and signalling behaviour that optimise the received signal relative to background noise. When the signal is used for more than one function, antagonisms amongst the different signalling functions may constrain the optimisation of the signal for any one function. Sexual selection through mate choice can strongly modify the effects of natural selection on signalling systems ultimately causing maladaptive signals to evolve. Echolocating bats represent a fascinating group in which to study the evolution of signalling systems as unlike bird songs or frog calls, echolocation has a dual role in foraging and communication. The function of bat echolocation is to generate echoes that the calling bat uses for orientation and food detection with call characteristics being directly related to the exploitation of particular ecological niches. Therefore, it is commonly assumed that echolocation has been shaped by ecology via natural selection. Here we demonstrate for the first time using a novel combined behavioural, ecological and genetic approach that in a bat species, Rhinolophus mehelyi: (1) echolocation peak frequency is an honest signal of body size; (2) females preferentially select males with high frequency calls during the mating season; (3) high frequency males sire more off-spring, providing evidence that echolocation calls may play a role in female mate choice. Our data refute the sole role of ecology in the evolution of echolocation and highlight the antagonistic interplay between natural and sexual selection in shaping acoustic signals.

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“…, ; Sachteleben & von Helversen, ; Jahelková & Horáček, ; Liu et al. ). For mammals in general, behavioral functions of the baculum have also been proposed.…”

Section: Introductionmentioning

confidence: 99%

“…In all three species the mating systems have been described as resource defense polygyny with seasonal single-male multi-female groups, but it seems to be more complicated and might share traits with a lek-based mating system (Sachteleben & von Helversen, 2006; Jahelkov a & Hor a cek, 2011). However, in bats very little is known about mating behavior, copulation duration, or copulation postures (Glass, 1966;Barclay & Thomas, 1979;O'Brien & Nankervis, 1994;Hosken et al 2001;Dixson et al 2004Dixson et al , 2012Sachteleben & von Helversen, 2006;Jahelkov a & Hor a cek, 2011;Liu et al 2013). For mammals in general, behavioral functions of the baculum have also been proposed.…”

Section: Introductionmentioning

confidence: 99%

Testing hypotheses of bat baculum function with 3D models derived from microCT

et al. 2015

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The baculum (os penis) has been extensively studied as a taxon-specific character in bats and other mammals but its mechanical function is still unclear. There is a wide consensus in the literature that the baculum is probably a sexually selected character. Using a novel approach combining postmortem manipulation and threedimensional (3D) imaging, we tested two functional hypotheses in the common noctule bat Nyctalus noctula, the common pipistrelle Pipistrellus pipistrellus, and Nathusius' pipistrelle Pipistrellus nathusii: (i) whether the baculum can protect the distal urethra and urethral opening from compression during erection and copulation; and (ii) whether the baculum and corpora cavernosa form a functional unit to support both the penile shaft and the more distal glans tip. In freshly dead or frozen and thawed bats, we compared flaccid penises with artificially 'erect' penises that were inflated with 10% formalin. Penises were stained with alcoholic iodine and imaged with a lab-based high-resolution x-ray microtomography system. Analysis of the 3D images enabled us to compare the changes in relative positions of the baculum, corpora cavernosa, urethra, and corpus spongiosum with one another between flaccid and 'erect' penises. Our results support both functional hypotheses, indicating that the baculum probably performs two different roles during erection. Our approach should prove valuable for comparing and testing the functions of different baculum morphologies in bats and other mammals. Moreover, we have validated an essential component of the groundwork necessary to extend this approach with finite element analysis for quantitative 3D biomechanical modeling of penis function.

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Vocalization during copulation behavior in greater horseshoe bats, Rhinolophus ferrumequinum

Cited by 6 publications

References 38 publications

Sexual dimorphism in echolocation pulse parameters of the CF-FM bat, Hipposideros pratti

Sexual dimorphism in echolocation pulse parameters of the CF-FM bat, Hipposideros pratti

Female Mate Choice Can Drive the Evolution of High Frequency Echolocation in Bats: A Case Study with Rhinolophus mehelyi

Testing hypotheses of bat baculum function with 3D models derived from microCT

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