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Inter-sexual multimodal communication during mating in wild geladas:the leading role of females

Current Zoology 2022年第5期68卷 570-580页

作者： Anna Zanoli marco gamba Alban Lemasson Ivan Norscia Elisabetta Palagi 无 Department of Life Sciences and Systems Biology University of TurinVia Accademia Albertina 13Torino 10123Italy University of Rennes University of NormandieCNRSEthoS(Éthologie Animale et Humaine)263 Av.Général LeclercRennes 35700France Institut Universitaire de France 1 Rue DescartesParis 75005France Natural History Museum University of PisaVia Roma 79Calci(Pisa)56011Italy Department of Biology Unit of EthologyUniversity of Pisa Via Alessandro Volta 6Pisa 50126Italy

Female primates can emit vocalizations associated with mating that can function as honest signals of ***,we investigated the role of mating calls and visual signals in female geladas(Theropithecus gelada).Because females have a central role in the gelada society and seem to solicit sexual interactions,we answered whether they emit vocalizations in conjunction with gazing to increase mating success *** and during copulations,females can emit pre-copulation calls and copulation *** the first time,we identified a new female vocalization emitted at the final stage of copulations(end-copulation call),possibly marking the occurrence of *** found that longer pre-copulation call sequences were followed by both prolonged copulations and the presence of end-copulation calls,thus suggesting that females use pre-copulation calls to ensure successful copula ***,we found that different combinations of female vocal types and gazing had different effects on male vocal behavior and motivation to complete the *** analysis of the vocal and visual signals revealed a complex inter-sexual multimodal chattering with the leading role of females in the signal *** chattering,led by females,modulates male sexual arousal,thus increasing the probability of the copula success.

关键词： copulation calls female end-copulation call inter-sexual coordination mating success multimodal communication Theropithecus gelada

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Modeling individual vocal differences in group-living lemurs using vocal tract morphology

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Current Zoology 2017年第4期63卷 467-475页

作者： marco gamba Livio FAVARO Alessandro ARALDI Valentina MATTEUCCI Cristina GIACOMA Olivier FRIARD Department of Life Sciences and Systems Biology University of Torino Via Accademia Albertina 13 Torino 10134 Italy Zoom Torine S.p.A Strada Piscina 36 Cumiana (Torino) 10040 Italy

Vocal individuality is widespread in social animals. Individual variation in vocalizations is a prereq- uisite for discriminating among conspecifics and may have facilitated the evolution of large complex societies. Ring-tailed lemurs Lemur catta live in relatively large social groups, have con- spicuous vocal repertoires, and their species-specific utterances can be interpreted in light of source-filter theory of vocal production. Indeed, their utterances allow individual discrimination and even recognition thanks to the resonance frequencies of the vocal tract. The purpose of this study is to determine which distinctive vocal features can be derived from the morphology of the upper vocal tract. To accomplish this, we built computational models derived from anatomical measurements collected on lemur cadavers and compared the results with the spectrographic out- put of vocalizations recorded from ex situ live individuals. Our results demonstrate that the mor- phological variation of the ring-tailed lemur vocal tract explains individual distinctiveness of their species-specific utterances. We also provide further evidence that vocal tract modeling is a power- ful tool for studying the vocal output of non-human primates.

关键词： formants indexical cues Lemur catta nasal resonance ring-tailed lemur.

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Evidence for acoustic discrimination in lemurs: A playback study on wild indris Indri indri

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Current Zoology 2023年第1期69卷 41-49页

作者： Giovanni Spezie Valeria Torti Giovanna Bonadonna Chiara De Gregorio Daria Valente Cristina Giacoma marco gamba Konrad Lorenz Institute of Ethology University of Veterinary MedicineViennaAustria Department of Life Sciences and Systems Biology School of Nature SciencesUniversity of TurinTurinItaly

Indris Indri indri are group-living lemurs that occupy stable territories over several years and perform remarkable long-distance vocal *** exchanges between long-term territory neighbors may contribute to assessing reciprocal resource-holding potentials, thus adaptivelyreducing the costs of territorial defense by limiting aggressive escalation. Previous work showed that indris’ songs show distinctive acousticfeatures at individual and group level. However, the possibility that indris use such cues for individual or group-level recognition has never beeninvestigated experimentally. We conducted a playback experiment to test whether indris discriminate between familiar and nonfamiliar *** rationale lies in the hypothesis of the dear enemy phenomenon, which predicts that territorial animals will show reduced aggression levelstoward familiar neighbors compared with novel rivals. We played back stimulus recordings to wild indris from their territory boundaries andexamined their responses in terms of vocal and behavioral indicators of willingness to engage in a fight. In line with our predictions, focal animals responded more rapidly and approached more often the speaker in response to playback stimuli of nonfamiliar individuals than to stimuliof neighboring groups. These results indicate that indris can discriminate between different classes of intruders based on distinctive acousticfeatures of their song choruses. We suggest that increased aggression directed toward unfamiliar intruders may be explained by higher threatlevels associated with dispersal and group formation dynamics. We further discuss the relevance of these findings in a strepsirrhine primatemodel for comparative studies of vocal communication and sociality.

关键词： acoustic communication dear-enemy effect neighbor-stranger discrimination primate communication song territoriality

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Female indris determine the rhythmic structure of the song and sustain a higher cost when the chorus size increases

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Current Zoology 2019年第1期65卷 89-97页

作者： Chiara De Gregorio Anna Zanoli Daria Valente Valeria Torti Giovanna Bonadonna Rose Marie Randrianarison Cristina Giacoma marco gamba Dipartimento di Scienze della Vita e Biologia dei Sistemi Universita di Torino via Accademia Albertina Torino Italia Dipartimento di Scienze Chimiche della Vita e della Sostenibilita Ambientale Universita di Parma Parma Italia Group d'Ttude et de Recherche sur les Primates de Madagascar (GERP) Antananarivo Madagascar Departement de Anthropobiologie et Developpement Durable Universite d'Antananarivo Faculte des Sciences Antananarivo Madagascar

Among the behavioral traits shared by some nonhuman primate species and humans there is singing. Unfortunately, our understanding of animals' rhythmic abilities is still in its infancy. Indris are the only lemurs who sing and live in monogamous pairs, usually forming a group with their offspri ng. All adult members of a group usually participate in choruses that are emitted regularly and play a role in advertising territorial occupa ncy and in tergroup spaci ng. Males and females emit phrases that have similar frequency ranges but may differ in their temporal structure. We examined whether the individuals' contribution to the song may change according to chorus size, the total duration of the song or the duration of the individual con tribution using the in ter-on set intervals within a phrase and between phrases. We found that the rhythmic structure of indri's songs depends on factors that are different for males and females. We showed that females have sigrdficantly higher variation in the rhythm of their contribution to the song and that, changes according to chorus size. Our findings indicate that female indris sustain a higher cost of singing than males whe n the nu mber of singers in creases. These results suggest that cross-species investigatio ns will be crucial to un derstanding the evoluti on ary frame in which such sexually dimorphic traits occurred.

关键词： chorus coordination duets lemurs singing synchrony

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Born to sing!Song development in a singing primate

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Current Zoology 2021年第6期67卷 597-608页

作者： Chiara DE GREGORIO Filippo CARUGATI Vittoria ESTIENNE Daria VALENTE Teresa RAIMONDI Valeria TORTI Longondraza MIARETSOA Jonah RATSIMBAZAFY marco gamba Cristina GIACOMA Department of Life Sciences and Systems Biology University of Torinovia Accademia Albertina 13Torino 10125Italy Groupe d’Etude et de Recherche sur les Primates de Madagascar(GERP) BP 779–Antananarivo 101Madagascar

In animal vocal communication,the development of adult-like vocalization is fundamental to interact appropriately with ***,the factors that guide ontogenetic changes in the acoustic features remain poorly *** contrast with a historical view of nonhuman primate vocal production as substantially innate,recent research suggests that inheritance and physiological modification can only explain some of the developmental changes in call structure during growth.A particular case of acoustic communication is the indris’singing behavior,a peculiar case among Strepsirrhine *** to a decade of intense data collection,this work provides the first long-term quantitative analysis on song development in a singing *** understand the ontogeny of such a complex vocal output,we investigated juvenile and sub-adult indris’vocal behavior,and we found that young individuals started participating in the chorus years earlier than previously *** results indicated that spectro-temporal song parameters underwent essential changes during *** particular,the age and sex of the emitter influenced the indris’vocal *** found that frequency parameters showed consistent changes across the sexes,but the temporal features showed different developmental trajectories for males and *** the low level of morphological sexual dimorphism and the marked differences in vocal behavior,we hypothesize that factors like social influences and auditory feedback may affect songs’features,resulting in high vocal flexibility in juvenile *** trait may be pivotal in a species that engages in choruses with rapid vocal turn-taking.

关键词： duet flexibility juveniles lemurs ontogeny rhythm

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Isochronous singing in 3 crested gibbon species(Nomascus spp.)

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Current Zoology 2024年第3期70卷 291-297页

作者： Chiara De Gregorioa Teresa Raimondi Valeria Bevilacqua Chiara Pertosa Daria Valente Filippo Carugati Francesca Bandoli Livio Favaro Brice Lefaux Andrea Ravignani marco gamba Department of Life Sciences and Systems Biology University of Turinvia Accademia Albertina 13Torino 10125Italy Department of Biology University of PaduaVia VIII Febbraio2Padova 35122Italy Giardino Zoologico di Pistoia Via Pieve a Celle160/APistoia 5110Italy Botanical and Zoological Garden of Mulhouse 11 Av.de la 1ère Division BlindéeMulhouse 68100France Comparative Bioacoustics Group Max Planck Institute for PsycholinguisticsWundtlaan 1Nijmegen 6525 XDThe Netherlands Center for Music in the Brain Department of Clinical MedicineAarhus UniversityBuilding 1710Universitetsbyen 38000AarhusDenmark Department of Human Neuroscience Sapienza University of RomeViale Regina Elena 334Rome 00185Italy

The search for common characteristics between the musical abilities of humans and other animal species is still taking its frst *** of the most promising aspects from a comparative point of view is the analysis of rhythmic components,which are crucial features of human communicative performance but also well-identifable patterns in the vocal displays of other ***,the study of rhythm is becoming essential to understand the mechanisms of singing behavior and the evolution of human *** fndings provided evidence that particular rhythmic structures occur in human music and some singing animal species,such as birds and rock hyraxes,but only 2 species of nonhuman primates have been investigated so far(Indri indri and Hylobates lar).Therefore,our study aims to consistently broaden the list of species studied regarding the presence of rhythmic *** investigated the temporal organization in the singing of 3 species of crested gibbons(Nomascus gabriellae,Nomascus leucogenys,and Nomascus siki)and found that the most prominent rhythmic category was ***,we found slight variation in songs’tempo among species,with *** and *** singing with a temporal pattern involving a gradually increasing tempo(a musical accelerando),and *** with a more regular ***,we show how the prominence of a peak at the isochrony establishes itself as a shared characteristic in the small apes considered so far.

关键词： accelerando isochrony music rhythm singing primates song tempo

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中国麻阳河国家级自然保护区黑叶猴种群数量估计与分布

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动物学杂志 2016年第6期51卷 925-938页

作者：牛克锋肖志王彬杨德 Chia L Tan 张鹏颜修刚王华余波杨天友樊均德崔多英邹启先吴安康魏鲁明邹浩 marco gamba Cristina Giacoma 杨业勤梵净山国家级自然保护区管理局都灵大学生命科学与系统生物学系意大利都灵10123 麻阳河国家级自然保护区管理局圣地亚哥动物园保护研究中心美国加州埃斯孔迪多92027 铜仁学院生物与农林工程学院北京动物园圈养野生动物技术北京市重点实验室

2012年10月至2015年5月,对中国贵州省麻阳河国家级自然保护区黑叶猴(Trachypithecus francoisi)的种群数量和分布进行了调查研究。本次调查采用了直接观察猴群计数、夜宿地观察、问卷调查和访问、未出版资料及文献补充4种调查方法。结... 详细信息

2012年10月至2015年5月,对中国贵州省麻阳河国家级自然保护区黑叶猴(Trachypithecus francoisi)的种群数量和分布进行了调查研究。本次调查采用了直接观察猴群计数、夜宿地观察、问卷调查和访问、未出版资料及文献补充4种调查方法。结果表明,麻阳河国家级自然保护区及周边共有黑叶猴72群(含保护区外2群)。基于直接计数的25个猴群,计算猴群平均大小为(7.7±2.9)只,并以此计算保护区及周边黑叶猴数量为554只。其中,凉桥片区共有41群,315只;龚溪口片区共有16群,123只;务川片区共有15群,116只。调查发现保护区黑叶猴的分布基本以麻阳河、洪渡河及其支流兰子河为中轴,以箱状河谷的峭壁上和河岸附近的植被区作为主要活动范围。67群猴群发现点位于离河流中轴线缓冲距1 500 m区域以内,占总群数的93.1%。因此,为了确保该物种的生存以及缓解当地人猴冲突,建议重点加强对河流两岸栖息地的保护管理和自然植被恢复,尤其在人口稠密区更为必要。

关键词：黑叶猴种群数量估计分布麻阳河国家级自然保护区

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Erratum to: Born to sing! Song development in a singing primate

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Current Zoology 2024年第2期70卷 276-276页

作者： Chiara De Gregorio Filippo Carugati Vittoria Estienne Daria Valente Teresa Raimondi Valeria Torti Longondraza Miaretsoa Jonah Ratsimbazafy marco gamba Cristina Giacoma Department of Lifte Sciences and Systems Biology University of Torinovia Accademia Alberina 13Torino 10125Italy Groupe d'Etude et de Recherche sur les Primates de Madagascar(GERP) BP 779-Antananarivo 101Madagascar

The pagination of this article online has been updated to pages 597-608 to match the print *** Publisher sincerely apologizes for introducing this error online.

关键词： introducing sincerely match

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