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8 results on '"Chloe Chen-Kraus"'

1. Human-Lemur Coexistence in a Multiple-Use Landscape

Author

Chloe Chen-Kraus, Njaratiana A. Raharinoro, Miravo A. Randrianirinarisoa, David J. Anderson, Richard R. Lawler, David P. Watts, and Alison F. Richard

Subjects
risk disturbance hypothesis, sifaka, Propithecus verreauxi, disturbance ecology, behavior, distribution, Evolution, QH359-425, Ecology, QH540-549.5
Abstract

Human impacts on the natural world are increasing and are generally considered a threat to wildlife conservation and the persistence of species. However, not all human activities are antithetical to conservation and not all taxa are impacted in the same ways. Understanding how wildlife respond to human activities at the population and individual level will help inform management of landscapes where humans and wildlife can coexist. We examined the effects of anthropogenic activities on a critically endangered primate, Verreaux’s sifakas (Propithecus verreauxi), at a multiple-use reserve in southwest Madagascar. Specifically, we sought to determine which activities the sifakas perceived as disturbances, using the framework of the risk disturbance hypothesis (RDH). The RDH holds that animals will respond to perceived disturbances as they do to predation threats. We therefore predicted that sifakas would be more vigilant, spend more time in high forest strata, reduce their daily feeding time, and occur at lower densities in response to high levels of perceived disturbance. Using data on sifaka behavior and spatial distribution, and the frequencies of anthropogenic activities, we found that sifakas increased vigilance and their height above the ground in response to certain human-related activities, notably those of domestic dogs. Contrary to our predictions, however, we did not find a negative effect of anthropogenic activities on daily activity budgets or population density. The relationship between the occurrence of sifakas and the intensity of tree cutting was actually positive. Our results indicate that sifakas perceive certain anthropogenic activities as threats and respond with immediate behavioral shifts, but that these activities do not have a discernible negative impact on the reserve’s population at this time. These results suggest that lemur conservation can be successful even in areas that are subject to moderate human use.

Published
2022
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2. Dominance style is a key predictor of vocal use and evolution across nonhuman primates

Author

Eithne Kavanagh, Sally E. Street, Felix O. Angwela, Thore J. Bergman, Maryjka B. Blaszczyk, Laura M. Bolt, Margarita Briseño-Jaramillo, Michelle Brown, Chloe Chen-Kraus, Zanna Clay, Camille Coye, Melissa Emery Thompson, Alejandro Estrada, Claudia Fichtel, Barbara Fruth, Marco Gamba, Cristina Giacoma, Kirsty E. Graham, Samantha Green, Cyril C. Grueter, Shreejata Gupta, Morgan L. Gustison, Lindsey Hagberg, Daniela Hedwig, Katharine M. Jack, Peter M. Kappeler, Gillian King-Bailey, Barbora Kuběnová, Alban Lemasson, David MacGregor Inglis, Zarin Machanda, Andrew MacIntosh, Bonaventura Majolo, Sophie Marshall, Stephanie Mercier, Jérôme Micheletta, Martin Muller, Hugh Notman, Karim Ouattara, Julia Ostner, Mary S. M. Pavelka, Louise R. Peckre, Megan Petersdorf, Fredy Quintero, Gabriel Ramos-Fernández, Martha M. Robbins, Roberta Salmi, Isaac Schamberg, Valérie A. M. Schoof, Oliver Schülke, Stuart Semple, Joan B. Silk, J. Roberto Sosa-Lopéz, Valeria Torti, Daria Valente, Raffaella Ventura, Erica van de Waal, Anna H. Weyher, Claudia Wilke, Richard Wrangham, Christopher Young, Anna Zanoli, Klaus Zuberbühler, Adriano R. Lameira, and Katie Slocombe

Subjects
communication, sociality, social behaviour, dominance style, vocal, Science
Abstract

Animal communication has long been thought to be subject to pressures and constraints associated with social relationships. However, our understanding of how the nature and quality of social relationships relates to the use and evolution of communication is limited by a lack of directly comparable methods across multiple levels of analysis. Here, we analysed observational data from 111 wild groups belonging to 26 non-human primate species, to test how vocal communication relates to dominance style (the strictness with which a dominance hierarchy is enforced, ranging from ‘despotic’ to ‘tolerant’). At the individual-level, we found that dominant individuals who were more tolerant vocalized at a higher rate than their despotic counterparts. This indicates that tolerance within a relationship may place pressure on the dominant partner to communicate more during social interactions. At the species-level, however, despotic species exhibited a larger repertoire of hierarchy-related vocalizations than their tolerant counterparts. Findings suggest primate signals are used and evolve in tandem with the nature of interactions that characterize individuals' social relationships.

Published
2021
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4. Whom Do Primate Names Honor? Rethinking Primate Eponyms

Author

David P. Watts, Elaine E. Guevara, Katherine Meier, Chloe Chen-Kraus, Casey Farmer, and Jane Widness

Subjects
Geography, biology, Animal ecology, Anthropology, biology.animal, Honor, Animal Science and Zoology, Primate, Ecology, Evolution, Behavior and Systematics
Published
2021

5. Factors influencing terrestriality in primates of the Americas and Madagascar

Author

Timothy M. Eppley, Selwyn Hoeks, Colin A. Chapman, Jörg U. Ganzhorn, Katie Hall, Megan A. Owen, Dara B. Adams, Néstor Allgas, Katherine R. Amato, McAntonin Andriamahaihavana, John F. Aristizabal, Andrea L. Baden, Michela Balestri, Adrian A. Barnett, Júlio César Bicca-Marques, Mark Bowler, Sarah A. Boyle, Meredith Brown, Damien Caillaud, Cláudia Calegaro-Marques, Christina J. Campbell, Marco Campera, Fernando A. Campos, Tatiane S. Cardoso, Xyomara Carretero-Pinzón, Jane Champion, Óscar M. Chaves, Chloe Chen-Kraus, Ian C. Colquhoun, Brittany Dean, Colin Dubrueil, Kelsey M. Ellis, Elizabeth M. Erhart, Kayley J. E. Evans, Linda M. Fedigan, Annika M. Felton, Renata G. Ferreira, Claudia Fichtel, Manuel L. Fonseca, Isadora P. Fontes, Vanessa B. Fortes, Ivanyr Fumian, Dean Gibson, Guilherme B. Guzzo, Kayla S. Hartwell, Eckhard W. Heymann, Renato R. Hilário, Sheila M. Holmes, Mitchell T. Irwin, Steig E. Johnson, Peter M. Kappeler, Elizabeth A. Kelley, Tony King, Christoph Knogge, Flávia Koch, Martin M. Kowalewski, Liselot R. Lange, M. Elise Lauterbur, Edward E. Louis, Meredith C. Lutz, Jesús Martínez, Amanda D. Melin, Fabiano R. de Melo, Tsimisento H. Mihaminekena, Monica S. Mogilewsky, Leandro S. Moreira, Letícia A. Moura, Carina B. Muhle, Mariana B. Nagy-Reis, Marilyn A. Norconk, Hugh Notman, M. Teague O’Mara, Julia Ostner, Erik R. Patel, Mary S. M. Pavelka, Braulio Pinacho-Guendulain, Leila M. Porter, Gilberto Pozo-Montuy, Becky E. Raboy, Vololonirina Rahalinarivo, Njaratiana A. Raharinoro, Zafimahery Rakotomalala, Gabriel Ramos-Fernández, Delaïd C. Rasamisoa, Jonah Ratsimbazafy, Maholy Ravaloharimanitra, Josia Razafindramanana, Tojotanjona P. Razanaparany, Nicoletta Righini, Nicola M. Robson, Jonas da Rosa Gonçalves, Justin Sanamo, Nicole Santacruz, Hiroki Sato, Michelle L. Sauther, Clara J. Scarry, Juan Carlos Serio-Silva, Sam Shanee, Poliana G. A. de Souza Lins, Andrew C. Smith, Sandra E. Smith Aguilar, João Pedro Souza-Alves, Vanessa Katherinne Stavis, Kim J. E. Steffens, Anita I. Stone, Karen B. Strier, Scott A. Suarez, Maurício Talebi, Stacey R. Tecot, M. Paula Tujague, Kim Valenta, Sarie Van Belle, Natalie Vasey, Robert B. Wallace, Gilroy Welch, Patricia C. Wright, Giuseppe Donati, and Luca Santini

Subjects
primate communities, Mammals, Primates, Multidisciplinary, evolutionary transitions, Cercopithecidae, Haplorhini, Biological Evolution, Trees, climate change, Madagascar, Animals, Humans, Americas, primate evolution, Environmental Sciences, niche shift
Abstract

Among mammals, the order Primates is exceptional in having a high taxonomic richness in which the taxa are arboreal, semiterrestrial, or terrestrial. Although habitual terrestriality is pervasive among the apes and African and Asian monkeys (catarrhines), it is largely absent among monkeys of the Americas (platyrrhines), as well as galagos, lemurs, and lorises (strepsirrhines), which are mostly arboreal. Numerous ecological drivers and species-specific factors are suggested to set the conditions for an evolutionary shift from arboreality to terrestriality, and current environmental conditions may provide analogous scenarios to those transitional periods. Therefore, we investigated predominantly arboreal, diurnal primate genera from the Americas and Madagascar that lack fully terrestrial taxa, to determine whether ecological drivers (habitat canopy cover, predation risk, maximum temperature, precipitation, primate species richness, human population density, and distance to roads) or species-specific traits (body mass, group size, and degree of frugivory) associate with increased terrestriality. We collated 150,961 observation hours across 2,227 months from 47 species at 20 sites in Madagascar and 48 sites in the Americas. Multiple factors were associated with ground use in these otherwise arboreal species, including increased temperature, a decrease in canopy cover, a dietary shift away from frugivory, and larger group size. These factors mostly explain intraspecific differences in terrestriality. As humanity modifies habitats and causes climate change, our results suggest that species already inhabiting hot, sparsely canopied sites, and exhibiting more generalized diets, are more likely to shift toward greater ground use.

Published
2022

6. Dominance style is a key predictor of vocal use and evolution across nonhuman primates

Author

Samantha J. Green, Daria Valente, Zarin P. Machanda, Erica van de Waal, Joan B. Silk, Christopher Young, Daniela Hedwig, Klaus Zuberbühler, Oliver Schülke, Lindsey Hagberg, Sally E. Street, Anna Zanoli, Mary S. M. Pavelka, Martha M. Robbins, Martin N. Muller, Chloe Chen-Kraus, Roberta Salmi, Barbara Fruth, Cristina Giacoma, Isaac Schamberg, Michelle Brown, Louise Peckre, Fredy Quintero, Richard W. Wrangham, Andrew J. J. MacIntosh, Shreejata Gupta, Gillian King-Bailey, Felix O. Angwela, Eithne Kavanagh, Stuart Semple, Zanna Clay, Melissa Emery Thompson, Claudia Wilke, Camille Coye, Julia Ostner, Cyril C. Grueter, Marco Gamba, Raffaella Ventura, Margarita Briseño-Jaramillo, Hugh Notman, Sophie Marshall, Jérôme Micheletta, Thore J. Bergman, Bonaventura Majolo, Anna H. Weyher, Megan Petersdorf, Valérie A. M. Schoof, Gabriel Ramos-Fernández, Maryjka B. Blaszczyk, Kirsty E. Graham, Adriano R. Lameira, Morgan L. Gustison, Alban Lemasson, Karim Ouattara, Alejandro Estrada, Laura M. Bolt, David Macgregor Inglis, Peter M. Kappeler, Valeria Torti, Claudia Fichtel, Barbora Kuběnová, Stéphanie Mercier, J. Roberto Sosa-López, Katharine M. Jack, Katie E. Slocombe, University of York [York, UK], Nottingham Trent University, Durham University, University of Michigan [Ann Arbor], University of Michigan System, University of Texas at Austin [Austin], University of Waterloo [Waterloo], Universidad Nacional Autónoma de México (UNAM), University of California [Santa Barbara] (UCSB), University of California, Yale University [New Haven], University of Exeter, Ethologie animale et humaine (EthoS), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), No funding was provided specifically for the current paper, but funding which supported data collection at field sites is acknowledged in electronic supplementary material, S11., University of St Andrews. School of Psychology and Neuroscience, University of St Andrews. Institute of Behavioural and Neural Sciences, University of St Andrews. Centre for Social Learning & Cognitive Evolution, Mountains of the Moon University, Universidad Nacional Autónoma de México = National Autonomous University of Mexico (UNAM), University of California [Santa Barbara] (UC Santa Barbara), University of California (UC), Normandie Université (NU)-Normandie Université (NU)-Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS), The University of New Mexico [Albuquerque], German Primate Center - Deutsches Primatenzentrum -- Leibniz Insitute for Primate Research -- [Göttingen, Allemagne] (GPC - DPZ), Liverpool John Moores University (LJMU), Max Planck Institute of Animal Behavior, Università degli studi di Torino = University of Turin (UNITO), School of Psychology and Neuroscience [University of St. Andrews], University of St Andrews [Scotland], The University of Western Australia (UWA), Harvard University, Cornell University [New York], Tulane University, Kyoto University, University of Roehampton, United Kingdom, Tufts University [Medford], University of Lincoln, Université de Neufchätel (UNIME), University of Portsmouth, Athabasca University (AU), Centre Suisse de Recherches Scientifiques en Cote d'Ivoire [Abidjan] (CSRS-CI), University of Calgary, New York University [New York] (NYU), NYU System (NYU), Max Planck Institute for Evolutionary Anthropology [Leipzig], Max-Planck-Gesellschaft, University of Georgia [USA], Arizona State University [Tempe] (ASU), Instituto Politecnico Nacional [Mexico] (IPN), Abertay University (Abertay University), Université de Lausanne = University of Lausanne (UNIL), University of Massachusetts [Amherst] (UMass Amherst), University of Massachusetts System (UMASS), University of Pretoria [South Africa], and University of Lethbridge

Subjects
0106 biological sciences, Science, Basic Behavioral and Social Science, 010603 evolutionary biology, 01 natural sciences, Key (music), Style (sociolinguistics), social behaviour, [SCCO]Cognitive science, biology.animal, ddc:570, Behavioral and Social Science, dominance style, 0501 psychology and cognitive sciences, Animal communication, Primate, 050102 behavioral science & comparative psychology, Research Articles, Sociality, QL, Multidisciplinary, biology, communication, QH, Repertoire, 05 social sciences, DAS, QL Zoology, sociality, vocal, C800 Psychology, vocal, sociality, communication, dominance style, social behaviour, Dominance hierarchy, Dominance (ethology), communication, sociality, social behaviour, dominance style, vocal, Organismal and Evolutionary Biology, Psychology, Cognitive psychology
Abstract

Animal communication has long been thought to be subject to pressures and constraints associated with social relationships. However, our understanding of how the nature and quality of social relationships relates to the use and evolution of communication is limited by a lack of directly comparable methods across multiple levels of analysis. Here, we analysed observational data from 111 wild groups belonging to 26 non-human primate species, to test how vocal communication relates to dominance style (the strictness with which a dominance hierarchy is enforced, ranging from 'despotic' to 'tolerant'). At the individual-level, we found that dominant individuals who were more tolerant vocalized at a higher rate than their despotic counterparts. This indicates that tolerance within a relationship may place pressure on the dominant partner to communicate more during social interactions. At the species-level, however, despotic species exhibited a larger repertoire of hierarchy-related vocalizations than their tolerant counterparts. Findings suggest primate signals are used and evolve in tandem with the nature of interactions that characterize individuals' social relationships. Publisher PDF

Published
2021

7. DOMINANCE STYLE AND VOCAL COMMUNICATION IN NON-HUMAN PRIMATES

Author

Katie, Slocombe, Eithne, Kavanagh, Sally, Street, Angwela, Felix O., Bergman, Thore J., Blaszczyk, Maryjka B., Bolt, Laura M., Margarita, Briseño-Jaramillo, Michelle, Brown, Chloe, Chen-Kraus, Zanna, Clay, Camille, Coye, Melissa Emery Thompson, Alejandro, Estrada, Barbara, Fruth, Claudia, Fichtel, Gamba, Marco, Giacoma, Cristina, Graham, Kirsty E., Samantha, Green, Cyril, Grueter, Shreejata, Gupta, Gustiso, Morgan L., Lindsey, Hagberg, Daniela, Hedwig, Jack, Katharine M., Kappeler, Peter M., Gillian, King-Bailey, Barbora, Kuběnová, Alban, Lemasson, David Macgregor Inglis, Zarin, Machanda, Andrew, Macintosh, Bonaventura, Majolo, Sophie, Marshall, Stephanie, Mercier, Jérôme, Micheletta, Martin, Muller, Hugh, Notman, Karim, Ouattara, Julia, Ostnera, Mary Sm Pavelka, Peckre, Louise R., Megan, Petersdorf, Fredy, Quintero, Gabriel Ramos- Fernández, Robbins, Martha M., Roberta, Salmi, Isaac, Schamberg, Oliver, Schülke, Stuart, Semple, Silk, Joan B., Roberto Sosa-Lopéz, J., Torti, Valeria, Valente, Daria, Raffaella, Ventura, Erica Van De Waal, Weyher, Anna H., Claudia, Wilke, Richard, Wrangham, Christopher, Young, Zanoli, Anna, Klaus, Zuberbühler, and Adriano, Lameira.

Published
2020

8. Celebrating fifty years of research at the Duke Lemur Center

Author

Elaine E. Guevara, Chloe Chen-Kraus, Andrea L. Baden, and Rachel L. Jacobs

Subjects
0106 biological sciences, medicine.medical_specialty, History, 05 social sciences, MEDLINE, Duke Lemur Center, Environmental ethics, General Medicine, 010603 evolutionary biology, 01 natural sciences, Anthropology, Family medicine, medicine, 0501 psychology and cognitive sciences, 050102 behavioral science & comparative psychology
Published
2017

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