1
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Goulart VDLR, Young RJ. Investigation through Animal-Computer Interaction: A Proof-of-Concept Study for the Behavioural Experimentation of Colour Vision in Zoo-Housed Primates. Animals (Basel) 2024; 14:1979. [PMID: 38998091 PMCID: PMC11240658 DOI: 10.3390/ani14131979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 07/01/2024] [Accepted: 07/03/2024] [Indexed: 07/14/2024] Open
Abstract
Zoos are an important repository of animals, which have a wide range of visual systems, providing excellent opportunities to investigate many comparative questions in sensory ecology. However, behavioural testing must be carried out in an animal welfare-friendly manner, which is practical for zoo staff. Here, we present a proof-of-concept study to facilitate behavioural research on the sensory ecology of captive primates. A system consisting of a tablet computer and an automated feeder connected wirelessly was developed and presented to captive primate species to evaluate interactions with and without previous training. A colour stimulus, analogous to the Ishihara test, was used to check the level of interaction with the device, supporting future studies on sensory ecology with zoo animals. Animals were able to use the system successfully and displayed signs of learning to discriminate between the visual stimuli presented. We identified no risk for small primates in their interactions with the experimental setup without the presence of keepers. The use of electronic devices should be approached with caution to prevent accidents, as a standard practice for environmental enrichment for larger animals (e.g., spider monkeys). In the long term, the system developed here will allow us to address complex comparative questions about the functions of different visual systems in captive animals (i.e., dichromatic, trichromatic, etc.).
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Affiliation(s)
- Vinícius Donisete Lima Rodrigues Goulart
- Transportation Research and Environmental Modelling Laboratory—TREM, Institute of Geosciences, Universidade Federal de Minas Gerais, Belo Horizonte 31270-901, Brazil;
| | - Robert John Young
- School of Science, Engineering and Environment, Peel Building, University of Salford Manchester, Salford M5 4WT, UK
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2
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Rufo HP, Ferreira LG, Ottoni EB, Falótico T. Toxic tasting: how capuchin monkeys avoid grasshoppers' chemical defenses. Primates 2024; 65:235-241. [PMID: 38795206 PMCID: PMC11219405 DOI: 10.1007/s10329-024-01133-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 04/20/2024] [Indexed: 05/27/2024]
Abstract
Platyrrhines consume many species of arthropods in the order Orthoptera. Some species of orthopterans can produce chemical defenses that render them toxic or unpalatable and thus act as predator deterrents. These species include the stick grasshoppers (family Proscopiidae), which are widely distributed in the Caatinga biome in northeastern Brazil, which comprises part of the distribution of capuchin monkeys. Capuchin monkeys are omnivores and consume a wide variety of foods, including unpleasant-tasting, potentially toxic items, which they need to learn how to process. We describe the processing of stick grasshoppers (Stiphra sp.) by wild capuchin monkeys (Sapajus libidinosus) that live in Serra da Capivara National Park, Brazil, and compare how individuals of different age classes handle these potentially toxic food items. S. libidinosus predominantly avoided consuming the digestive tract, which contains toxic compounds, when feeding on stick grasshoppers. Immatures took longer than adults to process the stick grasshoppers, indicating that capuchins need to learn how to process the toxic digestive tract of these prey to avoid consuming it.
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Affiliation(s)
- Henrique P Rufo
- Institute of Psychology, University of São Paulo, São Paulo, Brazil
- Capuchin Culture Project, Neotropical Primates Research Group, São Paulo, Brazil
| | - Luiza G Ferreira
- School of Arts, Sciences and Humanities, University of São Paulo, São Paulo, Brazil
| | - Eduardo B Ottoni
- Institute of Psychology, University of São Paulo, São Paulo, Brazil
| | - Tiago Falótico
- Capuchin Culture Project, Neotropical Primates Research Group, São Paulo, Brazil.
- School of Arts, Sciences and Humanities, University of São Paulo, São Paulo, Brazil.
- Technological Primates Research Group, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
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3
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Newman BA, D’Angelo GJ. A Review of Cervidae Visual Ecology. Animals (Basel) 2024; 14:420. [PMID: 38338063 PMCID: PMC10854973 DOI: 10.3390/ani14030420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/21/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024] Open
Abstract
This review examines the visual systems of cervids in relation to their ability to meet their ecological needs and how their visual systems are specialized for particular tasks. Cervidae encompasses a diverse group of mammals that serve as important ecological drivers within their ecosystems. Despite evidence of highly specialized visual systems, a large portion of cervid research ignores or fails to consider the realities of cervid vision as it relates to their ecology. Failure to account for an animal's visual ecology during research can lead to unintentional biases and uninformed conclusions regarding the decision making and behaviors for a species or population. Our review addresses core behaviors and their interrelationship with cervid visual characteristics. Historically, the study of cervid visual characteristics has been restricted to specific areas of inquiry such as color vision and contains limited integration into broader ecological and behavioral research. The purpose of our review is to bridge these gaps by offering a comprehensive review of cervid visual ecology that emphasizes the interplay between the visual adaptations of cervids and their interactions with habitats and other species. Ultimately, a better understanding of cervid visual ecology allows researchers to gain deeper insights into their behavior and ecology, providing critical information for conservation and management efforts.
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Affiliation(s)
- Blaise A. Newman
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA 30602, USA
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4
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Kawamura S. Through cross-disciplinary collaboration. Primates 2024; 65:7-13. [PMID: 38198096 DOI: 10.1007/s10329-023-01115-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 12/03/2023] [Indexed: 01/11/2024]
Affiliation(s)
- Shoji Kawamura
- Department of Integrated Biosciences, Division of Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan.
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5
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Martínez-Domingo MÁ, Galdón A, Gómez-Robledo L, Huertas R, Hernández-Andrés J, Valero EM. Color vision deficiencies and camouflage: a comparative study between normal and CVD observers. OPTICS EXPRESS 2022; 30:13699-13713. [PMID: 35472977 DOI: 10.1364/oe.451525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 03/19/2022] [Indexed: 06/14/2023]
Abstract
There is a belief that observers with color vision deficiencies (CVD) perform better in detecting camouflaged objects than normal observers. Some studies have concluded contradictory findings when studying the performance of normal and CVD observers in the camouflage detection tasks in different conditions. This work presents a literature review on this topic, dividing it into three different and contradictory types of results: better performance for CVD, for normal observers, or same performance. Besides, two psychophysical experiments have been designed and carried out in a calibrated computer monitor on both normal and CVD human observers to measure the searching times of the different types of observers needed to find camouflaged stimuli in two different types of stimuli. Results show the trend that, in our experimental conditions, normal observers need shorter searching times than CVD observers in finding camouflaged stimuli both in images of natural scenes and in images with synthetic stimuli.
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6
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Spiezio C, Pugassi M, Agrillo C, Regaiolli B. Color preference and manual laterality in the emperor tamarin (Saguinus imperator). Am J Primatol 2022; 84:e23375. [PMID: 35322888 DOI: 10.1002/ajp.23375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 02/21/2022] [Accepted: 02/27/2022] [Indexed: 11/06/2022]
Abstract
The current research focuses on color preference between red and green stimuli and manual laterality in the emperor tamarin (Saguinus imperator). Trichromacy in primates has been related to a foraging advantage allowing frugivore primates to distinguish ripe from unripe fruits as well to socio-sexual communication, as trichromats would be advantaged in recognizing social and sexual signals. As warm colors can affect the emotive state of the subjects, leading to the activation of one hemisphere over the other (e.g., right hemisphere), this could lead to behavioral lateralization. Thus, studying of hand preference may be relevant when testing color preference. Nine adult zoo emperor tamarins were involved and the study aimed to investigate the preference between red, green, and white cones as well as manual laterality. Tamarins were provided with pairs of red-green, red-white, and green-white combinations of cones. Ten 30-min sessions per combination were carried out and data on the interaction with one of the two cones of each apparatus were collected to assess subjects' color preference. We also recorded the hand used by each subject during the interaction with cones of different colors and the position of the apparatus in respect to the tamarin. We found no preferences for colored versus white cones. Similarly, we reported no group-level preferences within different color combinations, whereas individual-level preferences were found when considering all choices. Finally, we found that red cones elicited a left-hand preference, suggesting a right-hemisphere involvement in the presence of red cones. Although we do not have genetic data on trichromat and dichromat females, the tendency to use the left hand when interacting with red stimuli provides further evidence that warm colors can influence the emotive state of the perceiver, affecting their manual lateralization.
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Affiliation(s)
- Caterina Spiezio
- Department of Research & Conservation, Parco Natura Viva, Bussolengo, Italy
| | - Marta Pugassi
- Department of Biosciences, University of Milan, Milan, Italy.,Parco Regionale di Montevecchia e della Valle del Curone, Lecco, Italy
| | - Christian Agrillo
- Department of General Psychology, University of Padua, Padua, Italy.,Padua Neuroscience Center, University of Padua, Padua, Italy
| | - Barbara Regaiolli
- Department of Research & Conservation, Parco Natura Viva, Bussolengo, Italy
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7
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Barros PKS, Castro FN, Pessoa DMA. Detection of conspicuous and cryptic food by common marmosets (Callithrix jacchus): An evaluation of the importance of color and shape cues. Behav Processes 2021; 192:104495. [PMID: 34487831 DOI: 10.1016/j.beproc.2021.104495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/21/2021] [Accepted: 09/01/2021] [Indexed: 11/25/2022]
Abstract
In primates, the advantage of trichromacy (i.e., color vision expressed by most humans) over dichromacy (i.e., color vision expressed by many colorblind humans) has been linked to the detection of yellowish/reddish targets against a background of mature green leaves. Nevertheless, mostly because of studies conducted in humans, we know that achromatic cues might also play an important role in object identification, particularly when camouflage is involved. For instance, dichromacy favors the detection of camouflaged targets by exploitation of shape cues. The present study sought to evaluate the relative importance of color and shape cues on the detection of food targets by female and male marmosets (Callithrix jacchus). Animals were observed with respect to their foraging behavior and the number of food targets captured. We confirmed that females are advantageous in detecting conspicuous food against a green background and revealed that females and males rely on shape cues to segregate cryptic food. Unexpectedly, males outperformed females in cryptic food foraging, while camouflage improved males' (but not females') performance. Here we show that dichromats could potentially benefit from a better segregation of green natural targets (e.g., immature fruits, green insects, and gum trees) when viewed against a green dappled background.
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Affiliation(s)
- Priscilla Kelly Silva Barros
- Laboratory of Sensory Ecology, Department of Physiology and Behavior, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, 59072-970, Brazil; Primate Center, Department of Physiology and Behavior, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| | - Felipe Nalon Castro
- Laboratory of Human Behavior Evolution, Department of Physiology and Behavior, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, 59072-970, Brazil
| | - Daniel Marques Almeida Pessoa
- Laboratory of Sensory Ecology, Department of Physiology and Behavior, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, 59072-970, Brazil; Primate Center, Department of Physiology and Behavior, Biosciences Center, Federal University of Rio Grande do Norte, Natal, RN, 59072-970, Brazil.
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8
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9
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Affiliation(s)
- Daniel Osorio
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK
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10
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Veilleux CC, Kawamura S, Montague MJ, Hiwatashi T, Matsushita Y, Fernandez‐Duque E, Link A, Di Fiore A, Snodderly DM. Color vision and niche partitioning in a diverse neotropical primate community in lowland Amazonian Ecuador. Ecol Evol 2021; 11:5742-5758. [PMID: 34026044 PMCID: PMC8131790 DOI: 10.1002/ece3.7479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 03/02/2021] [Accepted: 03/05/2021] [Indexed: 01/05/2023] Open
Abstract
A recent focus in community ecology has been on how within-species variability shapes interspecific niche partitioning. Primate color vision offers a rich system in which to explore this issue. Most neotropical primates exhibit intraspecific variation in color vision due to allelic variation at the middle-to-long-wavelength opsin gene on the X chromosome. Studies of opsin polymorphisms have typically sampled primates from different sites, limiting the ability to relate this genetic diversity to niche partitioning. We surveyed genetic variation in color vision of five primate species, belonging to all three families of the primate infraorder Platyrrhini, found in the Yasuní Biosphere Reserve in Ecuador. The frugivorous spider monkeys and woolly monkeys (Ateles belzebuth and Lagothrix lagotricha poeppigii, family Atelidae) each had two opsin alleles, and more than 75% of individuals carried the longest-wavelength (553-556 nm) allele. Among the other species, Saimiri sciureus macrodon (family Cebidae) and Pithecia aequatorialis (family Pitheciidae) had three alleles, while Plecturocebus discolor (family Pitheciidae) had four alleles-the largest number yet identified in a wild population of titi monkeys. For all three non-atelid species, the middle-wavelength (545 nm) allele was the most common. Overall, we identified genetic evidence of fourteen different visual phenotypes-seven types of dichromats and seven trichromats-among the five sympatric taxa. The differences we found suggest that interspecific competition among primates may influence intraspecific frequencies of opsin alleles. The diversity we describe invites detailed study of foraging behavior of different vision phenotypes to learn how they may contribute to niche partitioning.
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Affiliation(s)
- Carrie C. Veilleux
- Department of Anthropology and Primate Molecular Ecology and Evolution LaboratoryUniversity of Texas at AustinAustinTXUSA
- Department of AnatomyMidwestern UniversityGlendaleAZUSA
| | - Shoji Kawamura
- Department of Integrated BiosciencesUniversity of TokyoKashiwaJapan
| | | | | | - Yuka Matsushita
- Department of Integrated BiosciencesUniversity of TokyoKashiwaJapan
| | - Eduardo Fernandez‐Duque
- Department of Anthropology and School of the EnvironmentYale UniversityNew HavenCTUSA
- College of Biological and Environmental SciencesUniversidad San Francisco de QuitoCumbayáEcuador
| | - Andres Link
- College of Biological and Environmental SciencesUniversidad San Francisco de QuitoCumbayáEcuador
- Department of Biological SciencesUniversidad de Los AndesBogotaColombia
| | - Anthony Di Fiore
- Department of Anthropology and Primate Molecular Ecology and Evolution LaboratoryUniversity of Texas at AustinAustinTXUSA
- College of Biological and Environmental SciencesUniversidad San Francisco de QuitoCumbayáEcuador
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11
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DePasquale AN, Webb SE, Williamson RE, Fedigan LM, Melin AD. Testing the niche differentiation hypothesis in wild capuchin monkeys with polymorphic color vision. Behav Ecol 2021. [DOI: 10.1093/beheco/arab001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
The polymorphic color vision system present in most North, Central, and South American monkeys is a textbook case of balancing selection, yet the mechanism behind it remains poorly understood. Previous work has established task-specific foraging advantages to different color vision phenotypes: dichromats (red-green colorblind) are more efficient foraging for invertebrates, while trichromats (color “normal” relative to humans) are more efficient foraging for “reddish” ripe fruit, suggesting that niche differentiation may underlie the maintenance of color vision variation. We explore a prediction of the niche differentiation hypothesis by asking whether dichromatic and trichromatic capuchin monkeys (Cebus imitator) diverge in their foraging activity budget, specifically testing whether dichromats forage more frequently for invertebrates and trichromats forage more frequently for “reddish” ripe fruit. To assess this, we analyze a large data set of behavioral scan samples (n = 21 984) from 48 wild adult female capuchins of known color vision genotype, dominance rank, and reproductive status, together with models of food conspicuity. We find no significant differences between dichromats and trichromats in the frequency of scans spent foraging for different food types but do find that nursing females forage less overall than cycling females. Our results suggest that the potential for color-vision-based niche differentiation in foraging time may be curtailed by the energetic requirements of reproduction, behavioral synchrony caused by group living, and/or individual preferences. While niche differentiation in activity budgets by color vision type is not apparent, fine-scale niche differentiation may be occurring. This research enhances our understanding of the evolutionary processes maintaining sensory polymorphisms.
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Affiliation(s)
- Allegra N DePasquale
- Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, Canada
| | - Shasta E Webb
- Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, Canada
| | - Rachel E Williamson
- Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, Canada
| | - Linda M Fedigan
- Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, Canada
| | - Amanda D Melin
- Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr NW, Calgary, AB T2N 1N4, Canada
- Department of Medical Genetics, Cumming School of Medicine, University of Calgary, 3330 Hospital Dr NW, Calgary, AB T2N 4N1, Canada
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12
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Hoover KC. Sensory disruption and sensory inequities in the Anthropocene. Evol Anthropol 2021; 30:128-140. [PMID: 33580579 DOI: 10.1002/evan.21882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 02/27/2020] [Accepted: 10/21/2020] [Indexed: 12/20/2022]
Abstract
Anthropogenic disruptions to animal sensory ecology are as old as our species. But what about the effect on human sensory ecology? Human sensory dysfunction is increasing globally at great economic and health costs (mental, physical, and social). Contemporary sensory problems are directly tied to human behavioral changes and activity as well as anthropogenic pollution. The evolutionary sensory ecology and anthropogenic disruptions to three human senses (vision, audition, olfaction) are examined along with the economic and health costs of functionally reduced senses and demographic risk factors contributing to impairment. The primary goals of the paper are (a) to sew an evolutionary and ecological thread through clinical narratives on sensory dysfunction that highlights the impact of the built environment on the senses, and (b) to highlight structural, demographic, and environmental injustices that create sensory inequities in risk and that promote health disparities.
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Affiliation(s)
- Kara C Hoover
- Department of Anthropology, University of Alaska, Fairbanks, Alaska, USA
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13
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de Moraes PZ, Diniz P, Spyrides MHC, Pessoa DMA. The effect of pelage, background, and distance on predator detection and the evolution of primate color vision. Am J Primatol 2021; 83:e23230. [PMID: 33475188 DOI: 10.1002/ajp.23230] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 10/23/2020] [Accepted: 11/17/2020] [Indexed: 11/10/2022]
Abstract
Primates' predators, such as carnivore mammals, usually rely on camouflage to increase proximity to prey and start a predatory attempt. Camouflage depends not only on the color pattern presented by a predator's pelage but also on the background scene in which the hunting takes place. Another factor that influences camouflage effectiveness is prey's color vision since a given camouflage strategy might not work for all visual phenotypes. Still, little research has been made on the effect of primate visual phenotype on predator detection. Here, we investigate the effects of natural pelages, background scenarios, visual phenotypes, and detection distances on predator detection. We used photographs of taxidermized carnivores (ocelots, cougars, and lesser grisons) as detection stimuli, taken in three different natural scenarios (forest, savanna, and grassland), and at two viewing distances (near and far). On a touchscreen monitor, sets of four images (only one containing a hidden animal) were randomly presented to 39 human males (19 dichromats and 20 trichromats). We found that trichromats, when compared to dichromats, present a lower latency and a higher accuracy of carnivore detection for some conditions tested. We also found that pelage color, background scenario, and detection distance interact to influence the effectiveness of camouflage. Our results suggest that trichromacy might be even more advantageous for carnivore detection than thought before, since it facilitates detection of mammals with diverse pelage colorations, in environments with different phytophysiognomies, and at longer distances. We also propose that the higher rates of dichromacy found in modern human societies could have resulted from a relaxation in predation.
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Affiliation(s)
- Pedro Z de Moraes
- Laboratory of Sensory Ecology, Department of Physiology and Behavior, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil
| | - Pedro Diniz
- Ecology Graduation Program, University of Brasilia, Brasilia, 70910-900, Brazil.,Laboratory of Animal Behavior, Department of Zoology, University of Brasilia, Brasilia, 70910-900, Brazil
| | - Maria Helena C Spyrides
- Department of Statistics, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil
| | - Daniel M A Pessoa
- Laboratory of Sensory Ecology, Department of Physiology and Behavior, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil.,Primate Center, Department of Physiology and Behavior, Federal University of Rio Grande do Norte, Natal, 59078-970, Brazil
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14
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Melin AD, Hogan JD, Campos FA, Wikberg E, King‐Bailey G, Webb S, Kalbitzer U, Asensio N, Murillo‐Chacon E, Cheves Hernandez S, Guadamuz Chavarria A, Schaffner CM, Kawamura S, Aureli F, Fedigan L, Jack KM. Primate life history, social dynamics, ecology, and conservation: Contributions from long‐term research in Área de Conservación Guanacaste, Costa Rica. Biotropica 2020. [DOI: 10.1111/btp.12867] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Amanda D. Melin
- Department of Anthropology and Archaeology University of Calgary Calgary AB Canada
- Verhaltensökologie & Soziobiologie Deutsches Primatenzentrum – Leibniz‐Institut für Primatenforschung Göttingen Germany
| | - Jeremy D. Hogan
- Department of Anthropology and Archaeology University of Calgary Calgary AB Canada
| | | | - Eva Wikberg
- Department of Anthropology Tulane University New Orleans LA USA
| | | | - Shasta Webb
- Department of Anthropology and Archaeology University of Calgary Calgary AB Canada
| | - Urs Kalbitzer
- Department of Anthropology McGill University Montreal QC Canada
| | - Norberto Asensio
- Departamento de Psicología Social y Metodología de las Ciencias del Comportamiento Universidad del País Vasco Bilbao Spain
| | | | | | | | | | - Shoji Kawamura
- Department of Integrated Biosciences The University of Tokyo Kashiwa Japan
| | - Filippo Aureli
- Instituto de Neuroetología Universidad Veracruzana Xalapa Mexico
- Research Centre in Evolutionary Anthropology and Palaeoecology Liverpool John Moores University Liverpool UK
| | - Linda Fedigan
- Department of Anthropology and Archaeology University of Calgary Calgary AB Canada
| | - Katharine M. Jack
- Department of Anthropology University of Texas at San Antonio San Antonio TX USA
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15
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Dominy NJ, Melin AD. Liminal Light and Primate Evolution. ANNUAL REVIEW OF ANTHROPOLOGY 2020. [DOI: 10.1146/annurev-anthro-010220-075454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The adaptive origins of primates and anthropoid primates are topics of enduring interest to biological anthropologists. A convention in these discussions is to treat the light environment as binary—night is dark, day is light—and to impute corresponding selective pressure on the visual systems and behaviors of primates. In consequence, debate has tended to focus on whether a given trait can be interpreted as evidence of nocturnal or diurnal behavior in the primate fossil record. Such classification elides the variability in light, or the ways that primates internalize light in their environments. Here, we explore the liminality of light by focusing on what it is, its many sources, and its flux under natural conditions. We conclude by focusing on the intensity and spectral properties of twilight, and we review the mounting evidence of its importance as a cue that determines the onset or offset of primate activities as well as the entrainment of circadian rhythms.
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Affiliation(s)
- Nathaniel J. Dominy
- Department of Anthropology, Dartmouth College, Hanover, New Hampshire 03755, USA
| | - Amanda D. Melin
- Department of Anthropology and Archaeology, University of Calgary, Calgary, Alberta T2N 1N4, Canada
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16
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Mantovani V, Hauzman E, Corredor VH, Goulart PRK, Galvão O, Talebi M, Pessoa DMA, Soares JGM, Fiorani M, Gattass R, Fix Ventura D, Bonci DMO. Genetic variability of the sws1 cone opsin gene among New World monkeys. Am J Primatol 2020; 82:e23199. [PMID: 32990997 DOI: 10.1002/ajp.23199] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 09/03/2020] [Accepted: 09/07/2020] [Indexed: 02/05/2023]
Abstract
Vision is a major sense for Primates and the ability to perceive colors has great importance for the species ecology and behavior. Visual processing begins with the activation of the visual opsins in the retina, and the spectral absorption peaks are highly variable among species. In most Primates, LWS/MWS opsins are responsible for sensitivity to long/middle wavelengths within the visible light spectrum, and SWS1 opsins provide sensitivity to short wavelengths, in the violet region of the spectrum. In this study, we aimed to investigate the genetic variation on the sws1 opsin gene of New World monkeys (NWM) and search for amino acid substitutions that might be associated with the different color vision phenotypes described for a few species. We sequenced the exon 1 of the sws1 opsin gene of seven species from the families Callitrichidae, Cebidae, and Atelidae, and searched for variation at the spectral tuning sites 46, 49, 52, 86, 90, 93, 114, 116, and 118. Among the known spectral tuning sites, only residue 114 was variable. To investigate whether other residues have a functional role in the SWS1 absorption peak, we performed computational modeling of wild-type SWS1 and mutants A50I and A50V, found naturally among the species investigated. Although in silico analysis did not show any visible effect caused by these substitutions, it is possible that interactions of residue 50 with other sites might have some effect in the spectral shifts in the order of ~14 nm, found among the NWM. We also performed phylogenetic reconstruction of the sws1 gene, which partially recovered the species phylogeny. Further studies will be important to uncover the mutations responsible for the phenotypic variability of the SWS1 of NWM, and how spectral tuning may be associated with specific ecological features such as preferred food items and habitat use.
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Affiliation(s)
- Viviani Mantovani
- Departamento de Psicologia Experimental, Instituto de Psicologia, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Einat Hauzman
- Departamento de Psicologia Experimental, Instituto de Psicologia, Universidade de São Paulo, São Paulo, São Paulo, Brazil.,Hospital Israelita Albert Einstein, São Paulo, São Paulo, Brazil
| | - Vitor H Corredor
- Departamento de Psicologia Experimental, Instituto de Psicologia, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Paulo R K Goulart
- Núcleo de Teoria de Pesquisa do Comportamento, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Olavo Galvão
- Núcleo de Teoria de Pesquisa do Comportamento, Universidade Federal do Pará, Belém, Pará, Brazil
| | - Mauricio Talebi
- Departamento de Ciências Ambientais, Universidade Federal de São Paulo, Campus Diadema, São Paulo, São Paulo, Brazil
| | - Daniel M A Pessoa
- Departamento de Fisiologia e Comportamento, Universidade Federal do Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Juliana G M Soares
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mario Fiorani
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ricardo Gattass
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Dora Fix Ventura
- Departamento de Psicologia Experimental, Instituto de Psicologia, Universidade de São Paulo, São Paulo, São Paulo, Brazil.,Hospital Israelita Albert Einstein, São Paulo, São Paulo, Brazil
| | - Daniela M O Bonci
- Departamento de Psicologia Experimental, Instituto de Psicologia, Universidade de São Paulo, São Paulo, São Paulo, Brazil.,Hospital Israelita Albert Einstein, São Paulo, São Paulo, Brazil
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17
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Valenta K, Daegling DJ, Nevo O, Ledogar J, Sarkar D, Kalbitzer U, Bortolamiol S, Omeja P, Chapman CA, Ayasse M, Kay R, Williams B. Fruit Selectivity in Anthropoid Primates: Size Matters. INT J PRIMATOL 2020. [DOI: 10.1007/s10764-020-00158-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Galloway JAM, Green SD, Stevens M, Kelley LA. Finding a signal hidden among noise: how can predators overcome camouflage strategies? Philos Trans R Soc Lond B Biol Sci 2020; 375:20190478. [PMID: 32420842 PMCID: PMC7331011 DOI: 10.1098/rstb.2019.0478] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Substantial progress has been made in the past 15 years regarding how prey use a variety of visual camouflage types to exploit both predator visual processing and cognition, including background matching, disruptive coloration, countershading and masquerade. By contrast, much less attention has been paid to how predators might overcome these defences. Such strategies include the evolution of more acute senses, the co-opting of other senses not targeted by camouflage, changes in cognition such as forming search images, and using behaviours that change the relationship between the cryptic individual and the environment or disturb prey and cause movement. Here, we evaluate the methods through which visual camouflage prevents detection and recognition, and discuss if and how predators might evolve, develop or learn counter-adaptations to overcome these. This article is part of the theme issue ‘Signal detection theory in recognition systems: from evolving models to experimental tests'.
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Affiliation(s)
- James A M Galloway
- Centre for Ecology and Conservation, University of Exeter (Penryn Campus), Cornwall TR10 9FE, UK
| | - Samuel D Green
- Centre for Ecology and Conservation, University of Exeter (Penryn Campus), Cornwall TR10 9FE, UK
| | - Martin Stevens
- Centre for Ecology and Conservation, University of Exeter (Penryn Campus), Cornwall TR10 9FE, UK
| | - Laura A Kelley
- Centre for Ecology and Conservation, University of Exeter (Penryn Campus), Cornwall TR10 9FE, UK
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19
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Vasconcelos P, Rueffler C. How Does Joint Evolution of Consumer Traits Affect Resource Specialization? Am Nat 2019; 195:331-348. [PMID: 32017627 DOI: 10.1086/706813] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Consumers regularly experience trade-offs in their ability to find, handle, and digest different resources. Evolutionary ecologists recognized the significance of this observation for the evolution and maintenance of biological diversity long ago and continue to elaborate on the conditions under which to expect one or several specialists, generalists, or combinations thereof. Existing theory based on a single evolving trait predicts that specialization requires strong trade-offs such that generalists perform relatively poorly, while weak trade-offs favor a single generalist. Here, we show that this simple dichotomy does not hold true under joint evolution of two or more foraging traits. In this case, the boundary between trade-offs resulting in resource specialists and resource generalists is shifted toward weaker trade-off curvatures. In particular, weak trade-offs can result in evolutionary branching, leading to the evolution of two coexisting resource specialists, while the evolution of a single resource generalist requires particularly weak trade-offs. These findings are explained by performance benefits due to epistatic trait interactions enjoyed by phenotypes that are specialized in more than one trait for the same resource.
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20
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Moreira LAA, Duytschaever G, Higham JP, Melin AD. Platyrrhine color signals: New horizons to pursue. Evol Anthropol 2019; 28:236-248. [PMID: 31609040 PMCID: PMC6865018 DOI: 10.1002/evan.21798] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 06/17/2019] [Accepted: 08/07/2019] [Indexed: 01/26/2023]
Abstract
Like catarrhines, some platyrrhines show exposed and reddish skin, raising the possibility that reddish signals have evolved convergently. This variation in skin exposure and color combined with sex-linked polymorphic color vision in platyrrhines presents a unique, and yet underexplored, opportunity to investigate the relative importance of chromatic versus achromatic signals, the influence of color perception on signal evolution, and to understand primate communication broadly. By coding the facial skin exposure and color of 96 platyrrhines, 28 catarrhines, 7 strepsirrhines, 1 tarsiiform, and 13 nonprimates, and by simulating the ancestral character states for these traits, we provide the first analysis of the distribution and evolution of facial skin exposure and color in platyrrhini. We highlight ways in which studying the presence and use of color signals by platyrrhines and other primates will enhance our understanding of the evolution of color signals, and the forces shaping color vision.
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Affiliation(s)
- Laís A. A. Moreira
- Department of Anthropology & ArchaeologyUniversity of CalgaryCalgaryAlbertaCanada
| | - Gwen Duytschaever
- Department of Anthropology & ArchaeologyUniversity of CalgaryCalgaryAlbertaCanada
| | | | - Amanda D. Melin
- Department of Anthropology & ArchaeologyUniversity of CalgaryCalgaryAlbertaCanada
- Department of Medical GeneticsUniversity of CalgaryCalgaryAlbertaCanada
- Alberta Children's Hospital Research InstituteCalgaryAlbertaCanada
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21
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The nutritional importance of invertebrates to female
Cebus capucinus imitator
in a highly seasonal tropical dry forest. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2019; 170:207-216. [DOI: 10.1002/ajpa.23913] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 06/05/2019] [Accepted: 07/18/2019] [Indexed: 12/12/2022]
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22
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Fennell JG, Talas L, Baddeley RJ, Cuthill IC, Scott-Samuel NE. Optimizing colour for camouflage and visibility using deep learning: the effects of the environment and the observer's visual system. J R Soc Interface 2019; 16:20190183. [PMID: 31138092 PMCID: PMC6544896 DOI: 10.1098/rsif.2019.0183] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/01/2019] [Indexed: 11/22/2022] Open
Abstract
Avoiding detection can provide significant survival advantages for prey, predators, or the military; conversely, maximizing visibility would be useful for signalling. One simple determinant of detectability is an animal's colour relative to its environment. But identifying the optimal colour to minimize (or maximize) detectability in a given natural environment is complex, partly because of the nature of the perceptual space. Here for the first time, using image processing techniques to embed targets into realistic environments together with psychophysics to estimate detectability and deep neural networks to interpolate between sampled colours, we propose a method to identify the optimal colour that either minimizes or maximizes visibility. We apply our approach in two natural environments (temperate forest and semi-arid desert) and show how a comparatively small number of samples can be used to predict robustly the most and least effective colours for camouflage. To illustrate how our approach can be generalized to other non-human visual systems, we also identify the optimum colours for concealment and visibility when viewed by simulated red-green colour-blind dichromats, typical for non-human mammals. Contrasting the results from these visual systems sheds light on why some predators seem, at least to humans, to have colouring that would appear detrimental to ambush hunting. We found that for simulated dichromatic observers, colour strongly affected detection time for both environments. In contrast, trichromatic observers were more effective at breaking camouflage.
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Affiliation(s)
- J. G. Fennell
- School of Psychological Science, University of Bristol, 12a Priory Road, Bristol BS8 1TU, UK
| | - L. Talas
- School of Psychological Science, University of Bristol, 12a Priory Road, Bristol BS8 1TU, UK
| | - R. J. Baddeley
- School of Psychological Science, University of Bristol, 12a Priory Road, Bristol BS8 1TU, UK
| | - I. C. Cuthill
- School of Biological Sciences, University of Bristol, Bristol Life Sciences Building, 24 Tyndall Avenue, Bristol BS8 1TQ, UK
| | - N. E. Scott-Samuel
- School of Psychological Science, University of Bristol, 12a Priory Road, Bristol BS8 1TU, UK
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23
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Abreu F, Souto A, Bonci DMO, Mantovani V, Pessoa DMA, Schiel N. Detection of insect prey by wild common marmosets: The effect of color vision. Am J Primatol 2019; 81:e22963. [PMID: 30809840 DOI: 10.1002/ajp.22963] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 02/06/2019] [Accepted: 02/10/2019] [Indexed: 11/07/2022]
Abstract
Most species of New World primates have an unusual color vision pattern that can affect an individual's ability to detect food. Whereas males can only be dichromatic, females can be either dichromatic or trichromatic. Trichromats are expected to have an advantage in detecting conspicuous food whereas dichromats should be better at locating cryptic resources. Here we aimed to understand how color vision phenotype influences insect foraging by five groups of common marmosets living in a semiarid environment. We recorded insect predation events, noting morphotype and color of the captured insect, and the substrate from which it was captured. Color modeling suggested that, for all values of chromatic contrast resulting from comparing the measured insect-substrate pairs, trichromats outperformed dichromats. Females showed an overall higher insect capture rate than males. Females also showed a higher capture rate of conspicuous insects but there was no sex difference for the capture of cryptic insects. When we compared only dichromatic individuals there was no difference between sexes. These findings suggest that differences found in capture rate related not only to sex but also to visual polymorphism and that the latter is a crucial factor determining insect capture rate in common marmosets. Nevertheless, these results should be interpreted with caution because of the small number (three) of dichromat females and the unknown phenotype of the remaining females. Our results support the balancing selection hypothesis, suggesting that the advantage of one phenotype over the other may depend on environmental circumstances. This hypothesis has recently been considered as the most plausible for the maintenance of visual polymorphism in New World primates.
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Affiliation(s)
- Filipa Abreu
- Laboratory of Theoretical and Applied Ethology, Department of Biology, Federal Rural University of Pernambuco, Recife, Brazil
| | - Antonio Souto
- Laboratory of Ethology, Department of Zoology, Federal University of Pernambuco, Recife, Brazil
| | - Daniela M O Bonci
- Laboratory of Psychophysiology, Department of Experimental Psychology, University of São Paulo, São Paulo, Brazil
| | - Viviani Mantovani
- Laboratory of Psychophysiology, Department of Experimental Psychology, University of São Paulo, São Paulo, Brazil
| | - Daniel M A Pessoa
- Laboratory of Sensory Ecology, Department of Physiology and Behavior, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Nicola Schiel
- Laboratory of Theoretical and Applied Ethology, Department of Biology, Federal Rural University of Pernambuco, Recife, Brazil
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25
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Doron R, Sterkin A, Fried M, Yehezkel O, Lev M, Belkin M, Rosner M, Solomon AS, Mandel Y, Polat U. Spatial visual function in anomalous trichromats: Is less more? PLoS One 2019; 14:e0209662. [PMID: 30673711 PMCID: PMC6343896 DOI: 10.1371/journal.pone.0209662] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2018] [Accepted: 12/09/2018] [Indexed: 12/03/2022] Open
Abstract
Color deficiency is a common inherited disorder affecting 8% of Caucasian males with anomalous trichromacy (AT); it is the most common type of inherited color vision deficiency. Anomalous trichromacy is caused by alteration of one of the three cone-opsins’ spectral sensitivity; it is usually considered to impose marked limitations for daily life as well as for choice of occupation. Nevertheless, we show here that anomalous trichromat subjects have superior basic visual functions such as visual acuity (VA), contrast sensitivity (CS), and stereo acuity, compared with participants with normal color vision. Both contrast sensitivity and stereo acuity performance were correlated with the severity of color deficiency. We further show that subjects with anomalous trichromacy exhibit a better ability to detect objects camouflaged in natural gray scale figures. The advantages of color-deficient subjects in spatial vision performance could explain the relatively high prevalence of color-vision polymorphism in humans.
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Affiliation(s)
- Ravid Doron
- Department of Optometry and Vision Science, Hadassah Academic College, Jerusalem, Israel
| | - Anna Sterkin
- Goldschleger Eye Research Institute, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Hashomer, Israel
| | - Moshe Fried
- Goldschleger Eye Research Institute, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Hashomer, Israel
| | - Oren Yehezkel
- Goldschleger Eye Research Institute, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Hashomer, Israel
| | - Maria Lev
- The School of Optometry and Vision Science, The Mina & Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat-Gan, Israel
| | - Michael Belkin
- Goldschleger Eye Research Institute, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Hashomer, Israel
| | - Mordechai Rosner
- Goldschleger Eye Research Institute, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Hashomer, Israel
| | - Arieh S. Solomon
- Goldschleger Eye Research Institute, Sackler Faculty of Medicine, Tel-Aviv University, Tel-Hashomer, Israel
| | - Yossi Mandel
- The School of Optometry and Vision Science, The Mina & Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat-Gan, Israel
- Bar-Ilan Institute for Nanotechnology and Advanced Material (BINA), Bar Ilan University, Ramat-Gan, Israel
- * E-mail: (UP); (YM)
| | - Uri Polat
- The School of Optometry and Vision Science, The Mina & Everard Goodman Faculty of Life Sciences, Bar Ilan University, Ramat-Gan, Israel
- * E-mail: (UP); (YM)
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26
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Snodderly DM, Ellis KM, Lieberman SR, Link A, Fernandez-Duque E, Di Fiore A. Initiation of feeding by four sympatric Neotropical primates (Ateles belzebuth, Lagothrix lagotricha poeppigii, Plecturocebus (Callicebus) discolor, and Pithecia aequatorialis) in Amazonian Ecuador: Relationships to photic and ecological factors. PLoS One 2019; 14:e0210494. [PMID: 30673746 PMCID: PMC6344106 DOI: 10.1371/journal.pone.0210494] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 12/22/2018] [Indexed: 12/11/2022] Open
Abstract
We examined photic and ecological factors related to initiation of feeding by four sympatric primates in the rain forest of Amazonian Ecuador. With rare exceptions, morning activities of all taxa began only after the onset of nautical twilight, which occurred 47-48 min before sunrise. The larger spider and woolly monkeys, Ateles belzebuth and Lagothrix lagotricha poeppigii, left their sleeping trees before sunrise about half the time, while the smaller sakis and titi monkeys, Pithecia aequatorialis and Plecturocebus (formerly Callicebus) discolor, did not emerge until sunrise or later. None of the four taxa routinely began feeding before sunrise. Pithecia began feeding a median 2.17 h after sunrise, at least 0.8 h later than the median feeding times of the other three taxa. The early movement of Ateles and Lagothrix, and late initiation of feeding by Pithecia are consistent with temporal niche partitioning. Among most New World primate species, all males and many females, have dichromatic color vision, with only two cone photopigments, while some females are trichromats with three cone photopigments. Current evidence indicates that the dichromats have a foraging advantage in dim light, which could facilitate utilization of twilight periods and contribute to temporal niche partitioning. However, in our study, dichromatic males did not differentially exploit the dim light of twilight, and times of first feeding bouts of female Ateles and Lagothrix were similar to those of males. First feeding bouts followed a seasonal pattern, occurring latest in May-August, when ripe fruit abundance and ambient temperature were both relatively low. The most frugivorous taxon, Ateles, exhibited the greatest seasonality, initiating feeding 1.4 h later in May-August than in January-April. This pattern may imply a strategy of conserving energy when ripe fruit is scarcer, but starting earlier to compete successfully when fruit is more abundant. Lower temperatures were associated with later feeding of Ateles (by 26 min / °C) and perhaps Pithecia, but not Lagothrix or Plecturocebus. The potential for modification of temporal activity patterns and temporal niche partitioning by relatively small changes in temperature should be considered when predicting the effects of climate change.
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Affiliation(s)
- D. Max Snodderly
- Department of Neuroscience, University of Texas at Austin, Austin, TX, United States of America
| | - Kelsey M. Ellis
- Department of Anthropology, University of Texas at Austin, Austin, TX, United States of America
| | - Sarina R. Lieberman
- Department of Neuroscience, University of Texas at Austin, Austin, TX, United States of America
| | - Andrés Link
- Department of Biological Sciences and School of Management, Universidad de Los Andes, Bogota, Colombia
| | | | - Anthony Di Fiore
- Department of Anthropology, University of Texas at Austin, Austin, TX, United States of America
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27
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28
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Barrett BJ, Monteza-Moreno CM, Dogandžić T, Zwyns N, Ibáñez A, Crofoot MC. Habitual stone-tool-aided extractive foraging in white-faced capuchins, Cebus capucinus. ROYAL SOCIETY OPEN SCIENCE 2018; 5:181002. [PMID: 30225086 PMCID: PMC6124021 DOI: 10.1098/rsos.181002] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 07/25/2018] [Indexed: 06/08/2023]
Abstract
Habitual reliance on tool use is a marked behavioural difference between wild robust (genus Sapajus) and gracile (genus Cebus) capuchin monkeys. Despite being well studied and having a rich repertoire of social and extractive foraging traditions, Cebus sp. rarely use tools and have never been observed using stone tools. By contrast, habitual tool use by Sapajus is widespread. We review theory and discuss factors which might explain these differences in patterns of tool use between Cebus and Sapajus. We then report the first case of habitual stone tool use in a gracile capuchin: a population of white-faced capuchins (Cebus capucinus imitator) in Coiba National Park, Panama who habitually rely on hammerstone and anvil tool use to access structurally protected food items in coastal areas including Terminalia catappa seeds, hermit crabs, marine snails, terrestrial crabs and other items. This behaviour has persisted on one island in Coiba National Park since at least 2004. From 1 year of camera trapping, we found that stone tool use is strongly male-biased. Of the 205 camera trap days where tool use was recorded, adult females were never observed to use stone tools, although they were frequently recorded at the sites and engaged in scrounging behaviour. Stone tool use occurs year-round in this population; over half of all identifiable individuals were observed participating. At the most active tool use site, 83.2% of days where capuchins were sighted corresponded with tool use. Capuchins inhabiting the Coiba archipelago are highly terrestrial, under decreased predation pressure and potentially experience resource limitation compared to mainland populations-three conditions considered important for the evolution of stone tool use. White-faced capuchin tool use in Coiba National Park thus offers unique opportunities to explore the ecological drivers and evolutionary underpinnings of stone tool use in a comparative within- and between-species context.
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Affiliation(s)
- Brendan J. Barrett
- Cognitive and Cultural Ecology Group, Max Planck Institute for Ornithology, Radolfzell, Germany
- Department of Human Behavior, Ecology, and Culture, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
- Animal Behavior Graduate Group, University of California, Davis, CA, USA
- Department of Anthropology, University of California, Davis, CA, USA
- Smithsonian Tropical Research Institute, Balboa, Ancón, Panamá, Republic of Panamá
| | - Claudio M. Monteza-Moreno
- Animal Behavior Graduate Group, University of California, Davis, CA, USA
- Department of Anthropology, University of California, Davis, CA, USA
- Smithsonian Tropical Research Institute, Balboa, Ancón, Panamá, Republic of Panamá
- Estación Científica COIBA-AIP, Ciudad del Saber, Clayton, Panamá, Republic of Panamá
| | - Tamara Dogandžić
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
- Department of Anthropology, University of Pennsylvania, Philadelphia, PA, USA
| | - Nicolas Zwyns
- Department of Human Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
- Department of Anthropology, University of California, Davis, CA, USA
| | | | - Margaret C. Crofoot
- Animal Behavior Graduate Group, University of California, Davis, CA, USA
- Department of Anthropology, University of California, Davis, CA, USA
- Smithsonian Tropical Research Institute, Balboa, Ancón, Panamá, Republic of Panamá
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29
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Volonakis TN, Matthews OE, Liggins E, Baddeley RJ, Scott-Samuel NE, Cuthill IC. Camouflage assessment: Machine and human. COMPUT IND 2018. [DOI: 10.1016/j.compind.2018.03.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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30
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Hogan JD, Fedigan LM, Hiramatsu C, Kawamura S, Melin AD. Trichromatic perception of flower colour improves resource detection among New World monkeys. Sci Rep 2018; 8:10883. [PMID: 30022096 PMCID: PMC6052032 DOI: 10.1038/s41598-018-28997-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 06/25/2018] [Indexed: 11/21/2022] Open
Abstract
Many plants use colour to attract pollinators, which often possess colour vision systems well-suited for detecting flowers. Yet, to isolate the role of colour is difficult, as flowers also produce other cues. The study of florivory by Neotropical primates possessing polymorphic colour vision provides an opportunity to investigate the importance of colour directly. Here we determine whether differences in colour vision within a mixed population of wild dichromatic and trichromatic white-faced capuchins (Cebus capucinus imitator) affect flower foraging behaviours. We collected reflectance data for flower foods and modelled their chromatic properties to capuchin colour vision phenotypes. We collected behavioural data over 22 months spanning four years, determined the colour vision phenotype of each monkey based on amino acid variation of the L/M opsin gene from fecal DNA, and compared foraging behaviours of dichromats and trichromats. Most flowers were more conspicuous to trichromats, and trichromats foraged in small flower patches significantly more often. These data demonstrate a difference in wild primate foraging patterns based on colour vision differences, supporting the hypothesis that trichromacy enhances detection of small, ephemeral resources. This advantage, which may also extend to other foods, likely contributes to the maintenance of colour vision polymorphism in Neotropical monkeys.
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Affiliation(s)
- J D Hogan
- University of Calgary, Calgary, Canada
| | | | | | - S Kawamura
- University of Tokyo, Kashiwa, Chiba, Japan
| | - A D Melin
- University of Calgary, Calgary, Canada.
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31
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Matthews T, Osorio D, Cavallaro A, Chittka L. The Importance of Spatial Visual Scene Parameters in Predicting Optimal Cone Sensitivities in Routinely Trichromatic Frugivorous Old-World Primates. Front Comput Neurosci 2018; 12:15. [PMID: 29636674 PMCID: PMC5881122 DOI: 10.3389/fncom.2018.00015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 02/28/2018] [Indexed: 12/03/2022] Open
Abstract
Computational models that predict the spectral sensitivities of primate cone photoreceptors have focussed only on the spectral, not spatial, dimensions. On the ecologically valid task of foraging for fruit, such models predict the M-cone (“green”) peak spectral sensitivity 10–20 nm further from the L-cone (“red”) sensitivity peak than it is in nature and assume their separation is limited by other visual constraints, such as the requirement of high-acuity spatial vision for closer M and L peak sensitivities. We explore the possibility that a spatio-chromatic analysis can better predict cone spectral tuning without appealing to other visual constraints. We build a computational model of the primate retina and simulate chromatic gratings of varying spatial frequencies using measured spectra. We then implement the case study of foveal processing in routinely trichromatic primates for the task of discriminating fruit and leaf spectra. We perform an exhaustive search for the configurations of M and L cone spectral sensitivities that optimally distinguish the colour patterns within these spectral images. Under such conditions, the model suggests that: (1) a long-wavelength limit is required to constrain the L cone spectral sensitivity to its natural position; (2) the optimal M cone peak spectral sensitivity occurs at ~525 nm, close to the observed position in nature (~535 nm); (3) spatial frequency has a small effect upon the spectral tuning of the cones; (4) a selective pressure toward less correlated M and L spectral sensitivities is provided by the need to reduce noise caused by the luminance variation that occurs in natural scenes.
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Affiliation(s)
- Tristan Matthews
- Centre for Intelligent Sensing, Queen Mary University of London, London, United Kingdom
| | - Daniel Osorio
- School of Life Sciences, University of Sussex, Brighton, United Kingdom
| | - Andrea Cavallaro
- Centre for Intelligent Sensing, Queen Mary University of London, London, United Kingdom
| | - Lars Chittka
- School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom.,Institute for Advanced Study, Berlin, Germany
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Abstract
Abstract
Ants constitute one of the most intriguing animal groups with their advanced social lifes, different life histories and sensory modalities, one of which is vision. Chemosensation dominates all other modalities in the accomplishment of different vital tasks, but vision, varying from total blindness in some species to a relatively well-developed vision providing ants the basis for visually-guided behaviors, is also of importance. Although studies on ant vision mainly focused on recognition of and guidance by landmark cues in artificial and/or natural conditions, spectral sensitivities of their compound eyes and ocelli were also disclosed, but to a lesser extent. In this review, we have tried to present current data on the spectral sensitivities of the different ant species tested so far and the different methodological approaches. The results, as well as the similarities and/or discrepancies of the methodologies applied, were compared. General tendencies in ants’ spectral sensitivities are presented in a comparative manner and the role of opsins and ant ocelli in their spectral sensitivity is discussed in addition to the sensitivity of ants to long wavelengths. Extraocular sensitivity was also shown in some ant species. The advantages and/or disadvantages of a dichromatic and trichromatic color vision system are discussed from an ecological perspective.
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Affiliation(s)
- Volkan Aksoy
- Department of Biology, Faculty of Sciences, Balkan Campus, Trakya University, 22030 Edirne, Turkey
| | - Yilmaz Camlitepe
- Department of Biology, Faculty of Sciences, Balkan Campus, Trakya University, 22030 Edirne, Turkey
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Nokelainen O, Hubbard N, Lown AE, Wood LE, Stevens M. Through predators’ eyes: phenotype–environment associations in shore crab coloration at different spatial scales. Biol J Linn Soc Lond 2017. [DOI: 10.1093/biolinnean/blx101] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Trichromacy increases fruit intake rates of wild capuchins ( Cebus capucinus imitator). Proc Natl Acad Sci U S A 2017; 114:10402-10407. [PMID: 28894009 DOI: 10.1073/pnas.1705957114] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Intraspecific color vision variation is prevalent among nearly all diurnal monkeys in the neotropics and is seemingly a textbook case of balancing selection acting to maintain genetic polymorphism. Clear foraging advantages to monkeys with trichromatic vision over those with dichromatic "red-green colorblind" vision have been observed in captive studies; however, evidence of trichromatic advantage during close-range foraging has been surprisingly scarce in field studies, perhaps as a result of small sample sizes and strong impacts of environmental or individual variation on foraging performance. To robustly test the effects of color vision type on foraging efficiency in the wild, we conducted an extensive study of dichromatic and trichromatic white-faced capuchin monkeys (Cebus capucinus imitator), controlling for plant-level and monkey-level variables that may affect fruit intake rates. Over the course of 14 months, we collected behavioral data from 72 monkeys in Sector Santa Rosa, Costa Rica. We analyzed 19,043 fruit feeding events within 1,602 foraging bouts across 27 plant species. We find that plant species, color conspicuity category, and monkey age class significantly impact intake rates, while sex does not. When plant species and age are controlled for, we observe that trichromats have higher intake rates than dichromats for plant species with conspicuously colored fruits. This study provides clear evidence of trichromatic advantage in close-range fruit feeding in wild monkeys. Taken together with previous reports of dichromatic advantage for finding cryptic foods, our results illuminate an important aspect of balancing selection maintaining primate opsin polymorphism.
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Carvalho LS, Pessoa DMA, Mountford JK, Davies WIL, Hunt DM. The Genetic and Evolutionary Drives behind Primate Color Vision. Front Ecol Evol 2017. [DOI: 10.3389/fevo.2017.00034] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Peichl L, Kaiser A, Rakotondraparany F, Dubielzig RR, Goodman SM, Kappeler PM. Diversity of photoreceptor arrangements in nocturnal, cathemeral and diurnal Malagasy lemurs. J Comp Neurol 2017; 527:13-37. [DOI: 10.1002/cne.24167] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 12/29/2016] [Accepted: 12/30/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Leo Peichl
- Max Planck Institute for Brain Research; Max-von-Laue-Straße 4, 60438 Frankfurt am Main Germany
- Ernst Strüngmann Institute for Neuroscience; Deutschordenstraße 46, 60528 Frankfurt am Main Germany
- Institute of Cellular and Molecular Anatomy, Dr. Senckenbergische Anatomie, Goethe University Frankfurt; Theodor-Stern-Kai 7, 60590 Frankfurt am Main Germany
| | - Alexander Kaiser
- Department Biology II; Ludwig-Maximilians University Munich; Großhaderner Straße 2-4, 82152 Martinsried-Planegg Germany
- Institute of Zoology; University of Veterinary Medicine Hannover; Bünteweg 17, 30559 Hannover Germany
| | - Felix Rakotondraparany
- Département de Zoologie et Biodiversité Animale; Université d’Antananarivo; BP 906, Antananarivo 101 Madagascar
| | - Richard R. Dubielzig
- School of Veterinary Medicine; University of Wisconsin; 2015 Linden Drive Madison Wisconsin 53706
| | - Steven M. Goodman
- The Field Museum of Natural History; 1400 South Lake Shore Drive, Chicago Illinois 60605
- Association Vahatra; BP 3972, Antananarivo 101 Madagascar
| | - Peter M. Kappeler
- Behavioral Ecology and Sociobiology Unit, German Primate Center; Kellnerweg 4, 37077 Göttingen Germany
- Johann-Friedrich-Blumenbach-Institute of Zoology and Anthropology; University Göttingen; Kellnerweg 6, 37077 Göttingen Germany
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Melin AD, Khetpal V, Matsushita Y, Zhou K, Campos FA, Welker B, Kawamura S. Howler monkey foraging ecology suggests convergent evolution of routine trichromacy as an adaptation for folivory. Ecol Evol 2017; 7:1421-1434. [PMID: 28261454 PMCID: PMC5330884 DOI: 10.1002/ece3.2716] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 11/28/2016] [Accepted: 12/18/2016] [Indexed: 02/03/2023] Open
Abstract
Primates possess remarkably variable color vision, and the ecological and social factors shaping this variation remain heavily debated. Here, we test whether central tenants of the folivory hypothesis of routine trichromacy hold for the foraging ecology of howler monkeys. Howler monkeys (genus Alouatta) and paleotropical primates (Parvorder: Catarrhini) have independently acquired routine trichromacy through fixation of distinct mid- to long-wavelength-sensitive (M/LWS) opsin genes on the X-chromosome. The presence of routine trichromacy in howlers, while other diurnal neotropical monkeys (Platyrrhini) possess polymorphic trichromacy, is poorly understood. A selective force proposed to explain the evolution of routine trichromacy in catarrhines-reliance on young, red leaves-has received scant attention in howlers, a gap we fill in this study. We recorded diet, sequenced M/LWS opsin genes in four social groups of Alouatta palliata, and conducted colorimetric analysis of leaves consumed in Sector Santa Rosa, Costa Rica. For a majority of food species, including Ficus trees, an important resource year-round, young leaves were more chromatically conspicuous from mature leaves to trichromatic than to hypothetical dichromatic phenotypes. We found that 18% of opsin genes were MWS/LWS hybrids; when combined with previous research, the incidence of hybrid M/LWS opsins in this species is 13%. In visual models of food discrimination ability, the hybrid trichromatic phenotype performed slightly poorer than normal trichromacy, but substantially better than dichromacy. Our results provide support for the folivory hypothesis of routine trichromacy. Similar ecological pressures, that is, the search for young, reddish leaves, may have driven the independent evolution of routine trichromacy in primates on separate continents. We discuss our results in the context of balancing selection acting on New World monkey opsin genes and hypothesize that howlers experience stronger selection against dichromatic phenotypes than other sympatric species, which rely more heavily on cryptic foods.
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Affiliation(s)
- Amanda D. Melin
- Department of Anthropology and ArchaeologyUniversity of CalgaryCalgaryABCanada
- Department of Medical Genetics and Alberta Children’s Hospital Research InstituteUniversity of CalgaryCalgaryABCanada
| | - Vishal Khetpal
- Department of AnthropologyWashington University in St. LouisSt. LouisMOUSA
| | - Yuka Matsushita
- Department of Integrated BiosciencesGraduate School of Frontier SciencesThe University of TokyoTokyoJapan
| | - Kaile Zhou
- Department of Integrated BiosciencesGraduate School of Frontier SciencesThe University of TokyoTokyoJapan
- Department of Plant ProtectionCollege of Agriculture and BiotechnologyZhejiang UniversityHangzhouZhejiangChina
| | - Fernando A. Campos
- Department of Anthropology and ArchaeologyUniversity of CalgaryCalgaryABCanada
- Department of AnthropologyTulane UniversityNew OrleansLAUSA
| | - Barbara Welker
- Department of AnthropologyState University of New York at GeneseoGeneseoNYUSA
| | - Shoji Kawamura
- Department of Integrated BiosciencesGraduate School of Frontier SciencesThe University of TokyoTokyoJapan
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Troscianko J, Wilson-Aggarwal J, Griffiths D, Spottiswoode CN, Stevens M. Relative advantages of dichromatic and trichromatic color vision in camouflage breaking. Behav Ecol 2017; 28:556-564. [PMID: 29622920 PMCID: PMC5873837 DOI: 10.1093/beheco/arw185] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 11/24/2016] [Accepted: 12/07/2016] [Indexed: 11/13/2022] Open
Abstract
There is huge diversity in visual systems and color discrimination abilities, thought to stem from an animal’s ecology and life history. Many primate species maintain a polymorphism in color vision, whereby most individuals are dichromats but some females are trichromats, implying that selection sometimes favors dichromatic vision. Detecting camouflaged prey is thought to be a task where dichromatic individuals could have an advantage. However, previous work either has not been able to disentangle camouflage detection from other ecological or social explanations, or did not use biologically relevant cryptic stimuli to test this hypothesis under controlled conditions. Here, we used online “citizen science” games to test how quickly humans could detect cryptic birds (incubating nightjars) and eggs (of nightjars, plovers and coursers) under trichromatic and simulated dichromatic viewing conditions. Trichromats had an overall advantage, although there were significant differences in performance between viewing conditions. When searching for consistently shaped and patterned adult nightjars, simulated dichromats were more heavily influenced by the degree of pattern difference than were trichromats, and were poorer at detecting prey with inferior pattern and luminance camouflage. When searching for clutches of eggs—which were more variable in appearance and shape than the adult nightjars—the simulated dichromats learnt to detect the clutches faster, but were less sensitive to subtle luminance differences. These results suggest there are substantial differences in the cues available under viewing conditions that simulate different receptor types, and that these interact with the scene in complex ways to affect camouflage breaking.
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Affiliation(s)
- Jolyon Troscianko
- University of Exeter, School of Biosciences, Penryn Campus, Penryn TR10 9FE, UK
| | | | - David Griffiths
- University of Exeter, School of Biosciences, Penryn Campus, Penryn TR10 9FE, UK.,FoAM - Kernow, Workshop E, Jubilee Warehouse, Commercial Road, Penryn TR10 8FG, UK
| | - Claire N Spottiswoode
- University of Cambridge, Department of Zoology, Downing Street, Cambridge CB2 3EJ, UK, and.,DST-NRF Centre of Excellence at the FitzPatrick Institute, University of Cape Town, Rondebosch 7701, South Africa
| | - Martin Stevens
- University of Exeter, School of Biosciences, Penryn Campus, Penryn TR10 9FE, UK
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Kawamura S, Melin AD. Evolution of Genes for Color Vision and the Chemical Senses in Primates. EVOLUTION OF THE HUMAN GENOME I 2017. [DOI: 10.1007/978-4-431-56603-8_10] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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40
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Veilleux CC, Scarry CJ, Di Fiore A, Kirk EC, Bolnick DA, Lewis RJ. Group benefit associated with polymorphic trichromacy in a Malagasy primate (Propithecus verreauxi). Sci Rep 2016; 6:38418. [PMID: 27910919 PMCID: PMC5133583 DOI: 10.1038/srep38418] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/09/2016] [Indexed: 11/09/2022] Open
Abstract
In some primate lineages, polymorphisms in the X-linked M/LWS opsin gene have produced intraspecific variation in color vision. In these species, heterozygous females exhibit trichromacy, while males and homozygous females exhibit dichromacy. The evolutionary persistence of these polymorphisms suggests that balancing selection maintains color vision variation, possibly through a 'trichromat advantage' in detecting yellow/orange/red foods against foliage. We identified genetic evidence of polymorphic trichromacy in a population of Verreaux's sifaka (Propithecus verreauxi) at Kirindy Mitea National Park in Madagascar, and explored effects of color vision on reproductive success and feeding behavior using nine years of morphological, demographic, and feeding data. We found that trichromats and dichromats residing in social groups with trichromats exhibit higher body mass indices than individuals in dichromat-only groups. Additionally, individuals in a trichromat social group devoted significantly more time to fruit feeding and had longer fruit feeding bouts than individuals in dichromat-only groups. We hypothesize that, due to small, cohesive sifaka social groups, a trichromat advantage in detecting productive fruit patches during the energetically stressful dry season also benefits dichromats in a trichromat's group. Our results offer the first support for the 'mutual benefit of association' hypothesis regarding the maintenance of polymorphic trichromacy in primates.
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Affiliation(s)
- Carrie C. Veilleux
- Department of Anthropology, University of Texas at Austin, 2201 Speedway Stop C3200, Austin, TX, 78712, USA
| | - Clara J. Scarry
- Department of Anthropology, University of Texas at Austin, 2201 Speedway Stop C3200, Austin, TX, 78712, USA
| | - Anthony Di Fiore
- Department of Anthropology, University of Texas at Austin, 2201 Speedway Stop C3200, Austin, TX, 78712, USA
| | - E. Christopher Kirk
- Department of Anthropology, University of Texas at Austin, 2201 Speedway Stop C3200, Austin, TX, 78712, USA
| | - Deborah A. Bolnick
- Department of Anthropology, University of Texas at Austin, 2201 Speedway Stop C3200, Austin, TX, 78712, USA
- Population Research Center, University of Texas at Austin, Austin, TX, 78712, USA
| | - Rebecca J. Lewis
- Department of Anthropology, University of Texas at Austin, 2201 Speedway Stop C3200, Austin, TX, 78712, USA
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41
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Kawamura S. Color vision diversity and significance in primates inferred from genetic and field studies. Genes Genomics 2016; 38:779-791. [PMID: 27594978 PMCID: PMC4987397 DOI: 10.1007/s13258-016-0448-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 06/29/2016] [Indexed: 11/26/2022]
Abstract
Color provides a reliable cue for object detection and identification during various behaviors such as foraging, mate choice, predator avoidance and navigation. The total number of colors that a visual system can discriminate is largely dependent on the number of different spectral types of cone opsins present in the retina and the spectral separations among them. Thus, opsins provide an excellent model system to study evolutionary interconnections at the genetic, phenotypic and behavioral levels. Primates have evolved a unique ability for three-dimensional color vision (trichromacy) from the two-dimensional color vision (dichromacy) present in the majority of other mammals. This was accomplished via allelic differentiation (e.g. most New World monkeys) or gene duplication (e.g. Old World primates) of the middle to long-wavelength sensitive (M/LWS, or red-green) opsin gene. However, questions remain regarding the behavioral adaptations of primate trichromacy. Allelic differentiation of the M/LWS opsins results in extensive color vision variability in New World monkeys, where trichromats and dichromats are found in the same breeding population, enabling us to directly compare visual performances among different color vision phenotypes. Thus, New World monkeys can serve as an excellent model to understand and evaluate the adaptive significance of primate trichromacy in a behavioral context. I shall summarize recent findings on color vision evolution in primates and introduce our genetic and behavioral study of vision-behavior interrelationships in free-ranging sympatric capuchin and spider monkey populations in Costa Rica.
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Affiliation(s)
- Shoji Kawamura
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Bioscience BLDG 502, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8562 Japan
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42
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Jacobs RL, Spriggs AN, MacFie TS, Baden AL, Irwin MT, Wright PC, Louis EE, Lawler RR, Mundy NI, Bradley BJ. Primate genotyping via high resolution melt analysis: rapid and reliable identification of color vision status in wild lemurs. Primates 2016; 57:541-7. [DOI: 10.1007/s10329-016-0546-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 05/13/2016] [Indexed: 01/06/2023]
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Corso J, Bowler M, Heymann EW, Roos C, Mundy NI. Highly polymorphic colour vision in a New World monkey with red facial skin, the bald uakari (Cacajao calvus). Proc Biol Sci 2016; 283:20160067. [PMID: 27053753 PMCID: PMC4843651 DOI: 10.1098/rspb.2016.0067] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 03/16/2016] [Indexed: 11/12/2022] Open
Abstract
Colour vision is highly variable in New World monkeys (NWMs). Evidence for the adaptive basis of colour vision in this group has largely centred on environmental features such as foraging benefits for differently coloured foods or predator detection, whereas selection on colour vision for sociosexual communication is an alternative hypothesis that has received little attention. The colour vision of uakaris (Cacajao) is of particular interest because these monkeys have the most dramatic red facial skin of any primate, as well as a unique fission/fusion social system and a specialist diet of seeds. Here, we investigate colour vision in a wild population of the bald uakari,C. calvus, by genotyping the X-linked opsin locus. We document the presence of a polymorphic colour vision system with an unprecedented number of functional alleles (six), including a novel allele with a predicted maximum spectral sensitivity of 555 nm. This supports the presence of strong balancing selection on different alleles at this locus. We consider different hypotheses to explain this selection. One possibility is that trichromacy functions in sexual selection, enabling females to choose high-quality males on the basis of red facial coloration. In support of this, there is some evidence that health affects facial coloration in uakaris, as well as a high prevalence of blood-borne parasitism in wild uakari populations. Alternatively, the low proportion of heterozygous female trichromats in the population may indicate selection on different dichromatic phenotypes, which might be related to cryptic food coloration. We have uncovered unexpected diversity in the last major lineage of NWMs to be assayed for colour vision, which will provide an interesting system to dissect adaptation of polymorphic trichromacy.
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Affiliation(s)
- Josmael Corso
- Programa de Pós-Graduação em Genética e Biologia Molecular, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves 9500, Porto Alegre, Rio Grande do Sul 91501-970, Brazil
| | - Mark Bowler
- Behavioral Ecology Division, San Diego Zoo Institute for Conservation Research, 15600 San Pasqual Valley Road, Escondido, CA 92027-7000, USA Behavioral Ecology and Sociobiology Unit, German Primate Center, Leibniz Institute for Primate Research, Kellnerweg 4, Göttingen 37077, Germany
| | - Eckhard W Heymann
- Behavioral Ecology and Sociobiology Unit, German Primate Center, Leibniz Institute for Primate Research, Kellnerweg 4, Göttingen 37077, Germany
| | - Christian Roos
- Gene Bank of Primates and Primate Genetics Laboratory, German Primate Center, Leibniz Institute for Primate Research, Kellnerweg 4, Göttingen 37077, Germany
| | - Nicholas I Mundy
- Department of Zoology, University of Cambridge, Downing Street, Cambridge CB2 3EJ, UK
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Jacobs RL, Bradley BJ. Considering the Influence of Nonadaptive Evolution on Primate Color Vision. PLoS One 2016; 11:e0149664. [PMID: 26959829 PMCID: PMC4784951 DOI: 10.1371/journal.pone.0149664] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Accepted: 02/03/2016] [Indexed: 11/19/2022] Open
Abstract
Color vision in primates is variable across species, and it represents a rare trait in which the genetic mechanisms underlying phenotypic variation are fairly well-understood. Research on primate color vision has largely focused on adaptive explanations for observed variation, but it remains unclear why some species have trichromatic or polymorphic color vision while others are red-green color blind. Lemurs, in particular, are highly variable. While some species are polymorphic, many closely-related species are strictly dichromatic. We provide the first characterization of color vision in a wild population of red-bellied lemurs (Eulemur rubriventer, Ranomafana National Park, Madagascar) with a sample size (87 individuals; NX chromosomes = 134) large enough to detect even rare variants (0.95 probability of detection at ≥ 3% frequency). By sequencing exon 5 of the X-linked opsin gene we identified opsin spectral sensitivity based on known diagnostic sites and found this population to be dichromatic and monomorphic for a long wavelength allele. Apparent fixation of this long allele is in contrast to previously published accounts of Eulemur species, which exhibit either polymorphic color vision or only the medium wavelength opsin. This unexpected result may represent loss of color vision variation, which could occur through selective processes and/or genetic drift (e.g., genetic bottleneck). To indirectly assess the latter scenario, we genotyped 55 adult red-bellied lemurs at seven variable microsatellite loci and used heterozygosity excess and M-ratio tests to assess if this population may have experienced a recent genetic bottleneck. Results of heterozygosity excess but not M-ratio tests suggest a bottleneck might have occurred in this red-bellied lemur population. Therefore, while selection may also play a role, the unique color vision observed in this population might have been influenced by a recent genetic bottleneck. These results emphasize the need to consider adaptive and nonadaptive mechanisms of color vision evolution in primates.
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Affiliation(s)
- Rachel L. Jacobs
- Department of Anthropology, Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, District of Columbia, United States of America
- Interdepartmental Doctoral Program in Anthropological Sciences, Stony Brook University, Stony Brook, New York, United States of America
- Centre ValBio Research Station, Ranomafana, Fianarantsoa, Madagascar
- * E-mail:
| | - Brenda J. Bradley
- Department of Anthropology, Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, District of Columbia, United States of America
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Valenta K, Edwards M, Rafaliarison RR, Johnson SE, Holmes SM, Brown KA, Dominy NJ, Lehman SM, Parra EJ, Melin AD. Visual ecology of true lemurs suggests a cathemeral origin for the primate cone opsin polymorphism. Funct Ecol 2015. [DOI: 10.1111/1365-2435.12575] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Kim Valenta
- Department of Anthropology & Archaeology University of Toronto 19 Russell St Toronto ON Canada
| | - Melissa Edwards
- Department of Anthropology University of Toronto at Mississauga 3359 Mississauga Rd. North Mississauga QC Canada
| | | | - Steig E. Johnson
- Department of Anthropology & Archaeology University of Calgary 2500 University Dr. NW. Calgary QC Canada
| | - Sheila M. Holmes
- Department of Anthropology & Archaeology University of Calgary 2500 University Dr. NW. Calgary QC Canada
| | - Kevin A. Brown
- Dalla Lana School of Public Health University of Toronto 155 College St. Toronto QC Canada
| | | | - Shawn M. Lehman
- Department of Anthropology & Archaeology University of Toronto 19 Russell St Toronto ON Canada
| | - Esteban J. Parra
- Department of Anthropology University of Toronto at Mississauga 3359 Mississauga Rd. North Mississauga QC Canada
| | - Amanda D. Melin
- Department of Anthropology Washington University One Brookings Dr. St. Louis MO USA
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Mosdossy KN, Melin AD, Fedigan LM. Quantifying seasonal fallback on invertebrates, pith, and bromeliad leaves by white-faced capuchin monkeys (Cebus capucinus) in a tropical dry forest. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2015; 158:67-77. [PMID: 26010158 DOI: 10.1002/ajpa.22767] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 04/29/2015] [Accepted: 05/02/2015] [Indexed: 01/22/2023]
Abstract
OBJECTIVES Fallback foods (FBFs) are hypothesized to shape the ecology, morphology, and behavior of primates, including hominins. Identifying FBFs is therefore critical for revealing past and present foraging adaptations. Recent research suggests invertebrates act as seasonal FBFs for many primate species and human populations. Yet, studies measuring the consumption of invertebrates relative to ecological variation are widely lacking. We address this gap by examining food abundance and entomophagy by primates in a seasonal forest. MATERIALS AND METHODS We study foraging behavior of white-faced capuchins (Cebus capucinus)-a species renowned for its intelligence and propensity for extractive foraging-along with the abundance of invertebrates, dietary ripe fruits, pith, and bromeliads. Consumption events and processing time are recorded during focal animal samples. We determine abundance of vegetative foods through phenological and density records. Invertebrates are collected in malaise, pan, and terrestrial traps; caterpillar abundance is inferred from frass traps. RESULTS Invertebrates are abundant throughout the year and capuchins consume invertebrates-including caterpillars-frequently when fruit is abundant. However, capuchins spend significantly more time processing protected invertebrates when fruit and caterpillars are low in abundance. DISCUSSION Invertebrate foraging patterns are not uniform. Caterpillar consumption is consistent with a preferred strategy, whereas capuchins appear to fallback on invertebrates requiring high handling time. Capuchins are convergent with hominins in possessing large brains and high levels of sensorimotor intelligence, thus our research has broad implications for primate evolution, including factors shaping cognitive innovations, brain size, and the role of entomophagy in the human diet.
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Affiliation(s)
- Krisztina N Mosdossy
- Department of Anthropology and Archaeology, University of Calgary, Calgary, AB T2N 1N4, Canada
| | - Amanda D Melin
- Department of Anthropology, Washington University, St. Louis, MO, 63130
| | - Linda M Fedigan
- Department of Anthropology and Archaeology, University of Calgary, Calgary, AB T2N 1N4, Canada
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Villanea FA, Safi KN, Busch JW. A General Model of Negative Frequency Dependent Selection Explains Global Patterns of Human ABO Polymorphism. PLoS One 2015; 10:e0125003. [PMID: 25946124 PMCID: PMC4422588 DOI: 10.1371/journal.pone.0125003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 03/19/2015] [Indexed: 11/18/2022] Open
Abstract
The ABO locus in humans is characterized by elevated heterozygosity and very similar allele frequencies among populations scattered across the globe. Using knowledge of ABO protein function, we generated a simple model of asymmetric negative frequency dependent selection and genetic drift to explain the maintenance of ABO polymorphism and its loss in human populations. In our models, regardless of the strength of selection, models with large effective population sizes result in ABO allele frequencies that closely match those observed in most continental populations. Populations must be moderately small to fall out of equilibrium and lose either the A or B allele (N(e) ≤ 50) and much smaller (N(e) ≤ 25) for the complete loss of diversity, which nearly always involved the fixation of the O allele. A pattern of low heterozygosity at the ABO locus where loss of polymorphism occurs in our model is consistent with small populations, such as Native American populations. This study provides a general evolutionary model to explain the observed global patterns of polymorphism at the ABO locus and the pattern of allele loss in small populations. Moreover, these results inform the range of population sizes associated with the recent human colonization of the Americas.
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Affiliation(s)
- Fernando A. Villanea
- School of Biological Sciences, Washington State University, PO Box 644236, Pullman, Washington, 99164, United States of America
| | - Kristin N. Safi
- Department of Anthropology, Washington State University, PO Box 644910, Pullman, Washington, 99164, United States of America
| | - Jeremiah W. Busch
- School of Biological Sciences, Washington State University, PO Box 644236, Pullman, Washington, 99164, United States of America
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48
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Tajima S, Komine K. Saliency-based color accessibility. IEEE TRANSACTIONS ON IMAGE PROCESSING : A PUBLICATION OF THE IEEE SIGNAL PROCESSING SOCIETY 2015; 24:1115-1126. [PMID: 25608304 DOI: 10.1109/tip.2015.2393056] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Perception of color varies markedly between individuals because of differential expression of photopigments in retinal cones. However, it has been difficult to quantify the individual cognitive variation in colored scene and to predict its complex impacts on the behaviors. We developed a method for quantifying and visualizing information loss and gain resulting from individual differences in spectral sensitivity based on visual salience. We first modeled the visual salience for color-deficient observers, and found that the predicted losses and gains in local image salience derived from normal and color-blind models were correlated with the subjective judgment of image saliency in psychophysical experiments, i.e., saliency loss predicted reduced image preference in color-deficient observers. Moreover,saliency-guided image manipulations sufficiently compensated for individual differences in saliency. This visual saliency approach allows for quantification of information extracted from complex visual scenes and can be used as an image compensation to enhance visual accessibility by color-deficient individuals.
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Bunce JA. Incorporating ecology and social system into formal hypotheses to guide field studies of color vision in primates. Am J Primatol 2015; 77:516-26. [PMID: 25690845 DOI: 10.1002/ajp.22371] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 11/05/2014] [Accepted: 11/11/2014] [Indexed: 11/07/2022]
Abstract
The X-linked gene polymorphism responsible for the variable color vision of most Neotropical monkeys and some lemurs is thought to be maintained by balancing selection, such that trichromats have an advantage over dichromats for some ecologically important task(s). However, evidence for such an advantage in wild primate populations is equivocal. The purpose of this study is to refine a hypothesis for a trichromat advantage by tailoring it to the ecology of territorial primates with female natal dispersal, such that dispersing trichromatic females have a foraging and, by extension, survival advantage over dichromats. I then examine the most practical way to test this hypothesis using field data. Indirect evidence in support of the hypothesis may take the form of differences in genotype frequencies among life stages and differences in disperser food item encounter rates. A deterministic evolutionary matrix population model and a stochastic model of food patch encounter rates are constructed to investigate the magnitude of such differences and the likelihood of statistical detection using field data. Results suggest that, although the sampling effort required to detect the hypothesized genotype frequency differences is impractical, a field study of reasonable scope may be able to detect differences in disperser foraging rates. This study demonstrates the utility of incorporating socioecological details into formal hypotheses during the planning stages of field studies of primate color vision.
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Affiliation(s)
- John A Bunce
- Department of Anthropology, University of California, Davis, California; Department of Anthropology, Vanderbilt University, Nashville, Tennessee
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Rojas DP, Stow A, Amézquita A, Simões PI, Lima AP. No predatory bias with respect to colour familiarity for the aposematic Adelphobates galactonotus (Anura: Dendrobatidae). BEHAVIOUR 2015. [DOI: 10.1163/1568539x-00003297] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Aposematic colouration deters visually oriented predators because conspicuous signals are easier to detect and associate with unpalatability. Consequently, brightly coloured prey that are novel are predicted to be preyed on more than those with bright but typical colours. Here we evaluated whether predatory bias is associated with the colour differences observed at two different localities for a large, conspicuously coloured and poisonous Amazonian frog, Adelphobates galactonotus. At each locality predation experiments were carried out using frog models of two naturally occurring colours of the study species (blue and orange) and a control (brown). We found no evidence that novel colours were more vulnerable to predation than local colours. These results do not therefore support our hypothesis that predatory bias explains the geographic variation of colour in A. galactonotus.
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Affiliation(s)
- Diana Patricia Rojas
- aCoordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, P.O. Box 2223, 69011-970 Manaus, AM, Brazil
| | - Adam Stow
- bDepartment of Biological Sciences, Macquarie University, Sydney, NSW, Australia
| | - Adolfo Amézquita
- cDepartment of Biological Sciences, Universidad de los Andes, Bogotá, Colombia
| | - Pedro Ivo Simões
- aCoordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, P.O. Box 2223, 69011-970 Manaus, AM, Brazil
- dLaboratório de Sistemática de Vertebrados, Pontificia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Albertina Pimentel Lima
- aCoordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, P.O. Box 2223, 69011-970 Manaus, AM, Brazil
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