Cristiane Cäsar

ORCID: 0000-0003-2135-2462
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About
Contact & Profiles
Research Areas
  • Animal Vocal Communication and Behavior
  • Primate Behavior and Ecology
  • Animal Behavior and Reproduction
  • Music and Audio Processing
  • Language and cultural evolution
  • Marine animal studies overview
  • Phytochemistry and Biological Activities
  • thermodynamics and calorimetric analyses
  • Essential Oils and Antimicrobial Activity
  • Multisensory perception and integration
  • Phytochemical Studies and Bioactivities
  • Algorithms and Data Compression
  • Speech and Audio Processing
  • Mosquito-borne diseases and control
  • Amphibian and Reptile Biology
  • Language, Discourse, Communication Strategies
  • Neuroendocrine regulation and behavior
  • Evolutionary Psychology and Human Behavior
  • Wildlife Ecology and Conservation
  • Flavonoids in Medical Research
  • Rabbits: Nutrition, Reproduction, Health
  • Forest ecology and management
  • Child and Animal Learning Development

Vale (Brazil)
2021-2023

University of St Andrews
2012-2019

Pontifícia Universidade Católica de Minas Gerais
2007-2019

Instituto de Ensino e Pesquisa Santa Casa
2013-2017

Natura (Brazil)
2017

Universidade Federal de Alfenas
2016

Animal alarm calls can encode information about a predator's category, size, distance or threat level. In non-human primates, typically refer to broad classes of disturbances, in some instances specific predators. Here, we present the results field experiment with New World primate, black-fronted titi monkey ( Callicebus nigrifrons ), designed explore conveyed by their call system. Adults produced sequences consisting two main types that conveyed, different parts utterance, type and...

10.1098/rsbl.2013.0535 article EN Biology Letters 2013-09-04

Abstract We argue that rich data gathered in experimental primatology the last 40 years can benefit from analytical methods used contemporary linguistics. Focusing on syntactic and especially semantic side, we suggest these could help clarify five questions: (i) what morphology syntax, if any, do monkey calls have? (ii) is ‘lexical meaning’ of individual calls? (iii) how are meanings combined? (iv) or call sequences compete with each other when several appropriate a given situation? (v) did...

10.1515/tl-2016-0001 article EN Theoretical Linguistics 2016-07-01

Abstract There is relatively good evidence that non-human primates can communicate about objects and events in their environment ways allow recipients to draw inferences the nature of event experienced by signaller. In some species, there also basic semantic units are not individual calls, but call sequences combinations generated them. These two findings relevant theories pertaining origins human language because resemblances these phenomena with linguistic reference syntactic organisation....

10.1093/czoolo/58.5.680 article EN cc-by-nc Current Zoology 2012-10-01

Previous work suggested that titi monkeys Callicebus nigrifrons combine two alarm calls, the A- and B-calls, to communicate about predator type location. To explore how listeners process these sequences, we recorded call sequences of six free-ranging groups exposed terrestrial aerial models, placed on ground or in canopy, used multimodel inference assess information encoded sequences. We then carried out playback experiments identify features by react available information. Results indicated...

10.1126/sciadv.aav3991 article EN cc-by-nc Science Advances 2019-05-03

Abstract We explain why general techniques from formal linguistics can and should be applied to the analysis of monkey communication – in areas syntax especially semantics. An informed look at our recent proposals shows that such needn’t rely excessively on categories human language: semantics provide versatile tools go beyond specificities linguistics. argue “formal linguistics” yield new insights into morphology, syntax, semantics, as well raise provocative questions about existence a...

10.1515/tl-2016-0010 article EN Theoretical Linguistics 2016-07-01

10.1007/s10764-019-00105-x article EN International Journal of Primatology 2019-08-30

Abstract Platyrrhini are highly vulnerable to the yellow fever (YF) virus. From 2016 2018, Atlantic Forest of southeast Brazil faced its worst sylvatic YF outbreak in about a century, thought have killed thousands primates. It is essential assess impact this epidemic on threatened primate assemblages design effective conservation strategies. In study, we assessed 2016–2018 geographically isolated population Near Threatened black‐fronted titi monkeys ( Callicebus nigrifrons ) two patches...

10.1002/ajp.23335 article EN American Journal of Primatology 2021-10-05

The emergent field of animal linguistics applies tools to data in order investigate potential linguistic-like properties their communication. One these is the "Urgency Principle", a pragmatic principle stating that an alarm sequence, calls providing information about nature or location threat must come before those do not. This theoretical has helped understand system putty-nosed monkeys, but whether it relevant for communication systems more generally remains be tested. Moreover, while can...

10.1080/03949370.2021.2015452 article EN Ethology Ecology & Evolution 2022-01-09

Predator presentation experiments are widely used to investigate animal alarm vocalizations. They usually involve presentations of predator models or playbacks calls, but it remains unclear whether the two paradigms provide similar results, a major limitation when investigating syntactic and semantic capacities. Here, we visual acoustic cues elicit different vocal reactions in black-fronted titi monkeys (Callicebus nigrifrons). We exposed six groups wild vocalizations raptor felid....

10.1007/s00265-022-03250-1 article EN cc-by Behavioral Ecology and Sociobiology 2022-10-03

This paper reports on an automated and openly available tool for automatic acoustic analysis transcription of primate calls, which takes raw field recordings outputs call labels time-aligned with the audio. The system's output predicts a majority start times calls accurately within 200 milliseconds. tools do not require any manual or selection spectral features by researcher.

10.1121/1.4954887 article EN The Journal of the Acoustical Society of America 2016-07-01

The variation in ecological traits pitheciids allows investigation of vocal communication over a range social and acoustic circumstances. In this review paper we present summary the history pitheciid studies i) status our current knowledge repertoire sizes primates, ii) how much do understand about context different signals iii) can potentially use vocalisations animal welfare practices. We show trends across taxa identify gaps knowledge. For instance, repertoires described for Titi monkeys...

10.15451/ec2017-09-6.15-1-18 article EN Ethnobiology and Conservation 2017-09-16

The likelihood of interspecific interactions between wild primates is particularly high for species with overlapping territories. sharing the same or similar ecological niches can result in competition space resources, which lead to agonistic encounters such as predator-prey interactions. Here, we report observation an abduction and potential case predation infant howler monkey (Alouatta guariba clamitans) by adult male capuchin (Sapajus nigritus) Minas Gerais, Brazil. Evidence monkeys'...

10.1515/mammalia-2013-0088 article EN Mammalia 2013-11-20

Abstract. We observed a putative case of empathy among wild black-fronted titi monkeys (Callicebus nigrifrons) from two different groups (D and R). In over 10 years behavioural observations five habituated this species, only low levels inter-group tolerance have been observed. However, on one day, we encountered the adult male group D limping (poor hind limb motor coordination) as he travelled alone along ground. Interestingly, that members R did not express any agonistic behaviour towards...

10.5194/pb-1-23-2014 article EN cc-by Primate Biology 2014-10-28
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