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Meireles LKG, Miquilini L, Brito FAC, Rodrigues AR, Henriques LD, Hauzman E, Bonci DMO, Costa MF, de Faria Galvão O, Ventura DF, Goulart PRK, Souza GS. Chromatic discrimination in fixed saturation levels from tufted capuchin monkeys with different color vision genotypes. J Comp Physiol A Neuroethol Sens Neural Behav Physiol 2024; 210:47-56. [PMID: 37268825 DOI: 10.1007/s00359-023-01644-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 05/10/2023] [Accepted: 05/25/2023] [Indexed: 06/04/2023]
Abstract
Recent research has proposed new approaches to investigate color vision in Old World Monkeys by measuring suprathreshold chromatic discrimination. In this study, we aimed to extend this approach to New World Monkeys with different color vision genotypes by examining their performance in chromatic discrimination tasks along different fixed chromatic saturation axes. Four tufted capuchin monkeys were included in the study, and their color vision genotypes were one classical protanope, one classical deuteranope, one non-classical protanope, and a normal trichromat. During the experiments, the monkeys were required to perform a chromatic discrimination task using pseudoisochromatic stimuli with varying target saturations of 0.06, 0.04, 0.03, and 0.02 u'v' units. The number of errors made by the monkeys along different chromatic axes was recorded, and their performance was quantified using the binomial probability of their hits during the tests. Our results showed that dichromatic monkeys made more errors near the color confusion lines associated with their specific color vision genotypes, while the trichromatic monkey did not demonstrate any systematic errors. At high chromatic saturation, the trichromatic monkey had significant hits in the chromatic axes around the 180° chromatic axis, whereas the dichromatic monkeys had errors in colors around the color confusion lines. At lower saturation, the performance of the dichromatic monkeys became more challenging to differentiate among the three types, but it was still distinct from that of the trichromatic monkey. In conclusion, our findings suggest that high saturation conditions can be used to identify the color vision dichromatic phenotype of capuchin monkeys, while low chromatic saturation conditions enable the distinction between trichromats and dichromats. These results extend the understanding of color vision in New World Monkeys and highlight the usefulness of suprathreshold chromatic discrimination measures in exploring color vision in non-human primates.
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Affiliation(s)
- Luiza Karina Gonçalves Meireles
- Núcleo de Teoria e Pesquisa do Comportamento, Universidade Federal do Pará, Belém, Brazil
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Av. Generalissimo Deodoro 92, Umarizal, Belém, 66055-240, Brazil
| | - Leticia Miquilini
- Núcleo de Teoria e Pesquisa do Comportamento, Universidade Federal do Pará, Belém, Brazil
| | - Felipe André Costa Brito
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Av. Generalissimo Deodoro 92, Umarizal, Belém, 66055-240, Brazil
| | | | - Leonardo Dutra Henriques
- Departamento de Psicologia, Instituto de Psicologia, Universidade de São Paulo, São Paulo, Brazil
| | - Einat Hauzman
- Departamento de Psicologia, Instituto de Psicologia, Universidade de São Paulo, São Paulo, Brazil
- Department of Life Sciences, The Natural History Museum, London, UK
| | | | - Marcelo Fernandes Costa
- Departamento de Psicologia, Instituto de Psicologia, Universidade de São Paulo, São Paulo, Brazil
| | - Olavo de Faria Galvão
- Núcleo de Teoria e Pesquisa do Comportamento, Universidade Federal do Pará, Belém, Brazil
| | - Dora Fix Ventura
- Departamento de Psicologia, Instituto de Psicologia, Universidade de São Paulo, São Paulo, Brazil
| | | | - Givago Silva Souza
- Instituto de Ciências Biológicas, Universidade Federal do Pará, Av. Generalissimo Deodoro 92, Umarizal, Belém, 66055-240, Brazil.
- Núcleo de Medicina Tropical, Universidade Federal do Pará, Belém, Brazil.
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Melin AD, Veilleux CC, Janiak MC, Hiramatsu C, Sánchez-Solano KG, Lundeen IK, Webb SE, Williamson RE, Mah MA, Murillo-Chacon E, Schaffner CM, Hernández-Salazar L, Aureli F, Kawamura S. Anatomy and dietary specialization influence sensory behaviour among sympatric primates. Proc Biol Sci 2022; 289:20220847. [PMID: 35975434 PMCID: PMC9382214 DOI: 10.1098/rspb.2022.0847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Senses form the interface between animals and environments, and provide a window into the ecology of past and present species. However, research on sensory behaviours by wild frugivores is sparse. Here, we examine fruit assessment by three sympatric primates (Alouatta palliata, Ateles geoffroyi and Cebus imitator) to test the hypothesis that dietary and sensory specialization shape foraging behaviours. Ateles and Cebus groups are comprised of dichromats and trichromats, while all Alouatta are trichomats. We use anatomical proxies to examine smell, taste and manual touch, and opsin genotyping to assess colour vision. We find that the frugivorous spider monkeys (Ateles geoffroyi) sniff fruits most often, omnivorous capuchins (Cebus imitator), the species with the highest manual dexterity, use manual touch most often, and that main olfactory bulb volume is a better predictor of sniffing behaviour than nasal turbinate surface area. We also identify an interaction between colour vision phenotype and use of other senses. Controlling for species, dichromats sniff and bite fruits more often than trichromats, and trichromats use manual touch to evaluate cryptic fruits more often than dichromats. Our findings reveal new relationships among dietary specialization, anatomical variation and foraging behaviour, and promote understanding of sensory system evolution.
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Affiliation(s)
- Amanda D Melin
- Department of Anthropology and Archaeology, University of Calgary, Calgary, AB, Canada.,Department of Medical Genetics, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,German Primate Research Center, Gottingen, Germany
| | - Carrie C Veilleux
- Department of Anatomy, Midwestern University, Glendale, AZ, USA.,Department of Anthropology, University of Texas, Austin, TX, USA
| | - Mareike C Janiak
- Department of Anthropology and Archaeology, University of Calgary, Calgary, AB, Canada.,Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada.,School of Science, Engineering & Environment, University of Salford, Manchester, UK
| | - Chihiro Hiramatsu
- Department of Human Science, Faculty of Design, Kyushu University, Fukuoka 815-8540, Japan
| | | | - Ingrid K Lundeen
- Department of Anthropology, University of Texas, Austin, TX, USA
| | - Shasta E Webb
- Department of Anthropology and Archaeology, University of Calgary, Calgary, AB, Canada
| | - Rachel E Williamson
- Department of Anthropology and Archaeology, University of Calgary, Calgary, AB, Canada
| | - Megan A Mah
- Department of Anthropology and Archaeology, University of Calgary, Calgary, AB, Canada
| | | | | | | | - Filippo Aureli
- Instituto de Neuroetología, Universidad Veracruzana, Xalapa, Veracruz, México.,Research Centre in Evolutionary Anthropology and Palaeoecology, Liverpool John Moores University, Liverpool, UK
| | - Shoji Kawamura
- Department of Integrative Biosciences, University of Tokyo, Kashiwa, Japan
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