Are simakobu (<i>Simias concolor</i>) loud calls energetically costly signals?

Erb, Wendy M.; Ziegler, Thomas; Lestari, Nurul Sukma; Hammerschmidt, Kurt

doi:10.1002/ajpa.23005

Cited by 5 publications

(3 citation statements)

References 74 publications

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“…While contact and territorial calls play a central role in keeping pair‐mates informed in all pair‐bonded species, duetting is a dramatic feature of advertising pair‐bonds in only some primates. Because duets are conspicuous from a distance, they can be particularly costly to callers, increasing detectability of callers to predators, as well as potential attacks by conspecific rivals, and imposing physiological production costs on callers (Burk, 1988; but see Erb, Ziegler, Lestari, & Hammerschmidt, 2016). Notably, duetting is not limited by activity pattern, occurring in diurnal (e.g., Indri indri ; Pollock, 1986) and nocturnal (e.g., P. pallescens ; Kappeler, 1997) species.…”

Section: Multimodal Signaling Within Primate Pair‐bondsmentioning

confidence: 99%

Multimodal pair‐bond maintenance: A review of signaling across modalities in pair‐bonded nonhuman primates

Singletary

Tecot

2020

American J Primatol

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Only a handful of primate species exhibit the social relationship of pair‐bonding. Efficient communication is critical for behavioral coordination within pair‐bonds to maintain proximity and respond appropriately to extra‐pair individuals, and possibly coordinate infant care. The use of complex signaling across modalities may help individuals improve communicative outcomes. We review many ways that pair‐bonded species use signals to communicate and maintain bonds, though little previous research has taken a truly multimodal approach within a single species. We make a call for further investigation into pair‐bonded communication using a multimodal approach to better understand how these species use all their senses to build, maintain, and advertise their bonds.

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Section: Multimodal Signaling Within Primate Pair‐bondsmentioning

confidence: 99%

Multimodal pair‐bond maintenance: A review of signaling across modalities in pair‐bonded nonhuman primates

Singletary

Tecot

2020

American J Primatol

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“…The loudest territorial duets and choruses in land animals are usually associated with primates. In howler monkeys, for instance, these have been measured at around 6–7 kHZ and 88 dB at a 5-m distance [37], with similar readings of duets or choruses in other primates [38,39,40]. In magpies, I have measured magpie group choruses at 90 dB and even 100 dB at a distance of 10 m.…”

Section: Figurementioning

confidence: 84%

Development of Meaningful Vocal Signals in a Juvenile Territorial Songbird (Gymnorhina tibicen) and the Dilemma of Vocal Taboos Concerning Neighbours and Strangers

Kaplan

2018

Animals

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Simple SummaryOwnership of a territory is very important for many vertebrates. Some songbird species, such as the Australian magpie, have all-year-round, not just seasonal, territories. Hence, there is a good deal at stake in holding on to such a territory. It requires vigilance, experience, an excellent memory, and most of all, effective vocal communication. There is a strong relationship between successful territorial ownership, strong social bonds, and the health, survival, even the life-span and overall cognitive development of offspring. Yet, we know next to nothing as to how juveniles acquire their vocal skills and apply these appropriately, including territorial signals. Clearly, juveniles need to learn about territoriality, i.e., learn about potential enemies, recognise which birds are neighbours, and what constitutes an incursion into territory. The results of this extensive field study unexpectedly revealed that juveniles did not use more than half of all the vocalisations adults expressed and they needed a long time (three months post fledging) to distinguish between neighbour and stranger calls, attributing differential importance to each. It also showed that the territorial call was learned but was expected by adults not be used by juveniles, limiting their ability to communicate. A range of other calls associated with territoriality were also not expressed, possibly because only territory owners could do so.AbstractYoung territorial songbirds have calls to learn, especially calls that may be vital for maintaining territory. Territoriality is largely reinforced and communicated by vocal signals. In their natal territory, juvenile magpies (Gymnorhina tibicen) enjoy protection from predators for 8–9 months. It is not at all clear, however, when and how a young territorial songbird learns to distinguish the meaning of calls and songs expressed by parents, conspecifics, neighbours, and heterospecifics, or how territorial calls are incorporated into the juvenile’s own repertoire. This project investigated acquisition and expression of the vocal repertoire in juvenile magpies and assessed the responses of adults and juveniles to playbacks of neighbour and stranger calls inside their territory. The results reported here identify age of appearance of specific vocalisations and the limits of their expression in juveniles. One new and surprising result was that many types of adult vocalisation were not voiced by juveniles. Playbacks of calls of neighbours and strangers inside the natal territory further established that adults responded strongly but differentially to neighbours versus strangers. By contrast, juveniles needed months before paying any attention to and distinguishing between neighbour and stranger calls and eventually did so only in non-vocal ways (such as referral to adults). These results provide evidence that auditory perception not only includes recognition and memory of neighbour calls but also an assessment of the importance of such calls in the context of territoriality.

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“…Providing evidence that loud calls are quality handicaps on the basis of signal cost alone can thus be difficult. It may not always be clear whether individuals reduce their call rates after heavy rain (Schel & Zuberbühler, 2012) or at extremer temperatures (Erb et al, 2016) because calling becomes too costly or because sound propagation is simply inhibited in these circumstances.…”

Section: 12| Strategic and Tactical Signal Designmentioning

confidence: 99%

Determinants of vocal usage in the genus Chlorocebus

Schad

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Are simakobu (Simias concolor) loud calls energetically costly signals?

Cited by 5 publications

References 74 publications

Multimodal pair‐bond maintenance: A review of signaling across modalities in pair‐bonded nonhuman primates

Multimodal pair‐bond maintenance: A review of signaling across modalities in pair‐bonded nonhuman primates

Development of Meaningful Vocal Signals in a Juvenile Territorial Songbird (Gymnorhina tibicen) and the Dilemma of Vocal Taboos Concerning Neighbours and Strangers

Determinants of vocal usage in the genus Chlorocebus

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