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| 1 | 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显示文摘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。 | 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 | 2016 | 动物学杂志2016，51，6： | 10 |
| 2 | Female indris determine the rhythmic structure of the song and sustain a higher cost when the chorus size increases显示文摘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. | Chiara De Gregorio Anna Zanoli Daria Valente Valeria Torti Giovanna Bonadonna Rose Marie Randrianarison Cristina Giacoma Marco Gamba | 2019 | Current Zoology2019，65，1： | 2 |
| 3 | Modeling individual vocal differences in group-living lemurs using vocal tract morphology显示文摘 | Marco GAMBA Livio FAVARO Alessandro ARALDI Valentina MATTEUCCI Cristina GIACOMA Olivier FRIARD | 2017 | Current Zoology2017，63，4： | 2 |
| 4 | Born to sing!Song development in a singing primate显示文摘In animal vocal communication,the development of adult-like vocalization is fundamental to interact appropriately with conspecifics.However,the factors that guide ontogenetic changes in the acoustic features remain poorly understood.In 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 primates.Thanks to a decade of intense data collection,this work provides the first long-term quantitative analysis on song development in a singing primate.To 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 reported.Our results indicated that spectro-temporal song parameters underwent essential changes during growth.In particular,the age and sex of the emitter influenced the indris’vocal activity.We found that frequency parameters showed consistent changes across the sexes,but the temporal features showed different developmental trajectories for males and females.Given 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 indris.This trait may be pivotal in a species that engages in choruses with rapid vocal turn-taking. | Chiara DE GREGORIO Filippo CARUGATI Vittoria ESTIENNE Daria VALENTE Teresa RAIMONDI Valeria TORTI Longondraza MIARETSOA Jonah RATSIMBAZAFY Marco GAMBA Cristina GIACOMA | 2021 | Current Zoology2021，67，6： | 0 |
| 5 | Inter-sexual multimodal communication during mating in wild geladas:the leading role of females显示文摘Female primates can emit vocalizations associated with mating that can function as honest signals of fertility.Here,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 probability.Before and during copulations,females can emit pre-copulation calls and copulation calls.For the first time,we identified a new female vocalization emitted at the final stage of copulations(end-copulation call),possibly marking the occurrence of ejaculation.We 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 completion.Moreover,we found that different combinations of female vocal types and gazing had different effects on male vocal behavior and motivation to complete the copula.The analysis of the vocal and visual signals revealed a complex inter-sexual multimodal chattering with the leading role of females in the signal exchange.Such chattering,led by females,modulates male sexual arousal,thus increasing the probability of the copula success. | Anna Zanoli Marco Gamba Alban Lemasson Ivan Norscia Elisabetta Palagi 无 | 2022 | Current Zoology2022，68，5： | 0 |
| 6 | Evidence for acoustic discrimination in lemurs: A playback study on wild indris Indri indri显示文摘Indris Indri indri are group-living lemurs that occupy stable territories over several years and perform remarkable long-distance vocal displays.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 songs.Our 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. | Giovanni Spezie Valeria Torti Giovanna Bonadonna Chiara De Gregorio Daria Valente Cristina Giacoma Marco Gamba | 2023 | Current Zoology2023，69，1： | 0 |
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