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Lalot M, Bovet D. Prosociality and reciprocity according to parental status, communication, and personality in domestic canaries (Serinus canaria). Behav Processes 2023; 205:104818. [PMID: 36584962 DOI: 10.1016/j.beproc.2022.104818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 12/23/2022] [Accepted: 12/26/2022] [Indexed: 12/29/2022]
Abstract
Prosociality (behaviours that benefit to a recipient without necessarily involving a cost to the actor) has recently been shown to exist in various taxa, including birds. Studies on prosociality in primates found that prosocial tendencies of the subject could be related to sex and parental care, communication from the recipient, cognitive abilities and personality. To investigate the existence of such associations on birds, we conducted a Prosocial Choice Task with domestic canaries (Serinus canaria). In our experiment, the subject could choose between three options: a prosocial, a selfish, and a null option (with no cost for the subject). We also conducted a food sharing experiment and measured several personality traits. Our results highlighted high levels of prosociality and a tendency to reciprocity among reproductive mates. We found a higher propensity to be prosocial in nulliparous individuals than in individuals that have previously been parents, but better sharing abilities in parents than in nulliparous individuals. When they were recipient, parents also used communication more efficiently than nulliparous subjects. Data suggest that parental expertise could enhance subjects' skills in eliciting prosociality. We also highlighted some interaction between prosociality, learning abilities, and some personality traits, proactive individuals being fast learners and more prosocial, while reactive individuals being slow learners and more reciprocal. Our results suggest that prosociality and reciprocity could be linked to personality and cognitive abilities, and that it might be interesting to consider them as parts of individual's cognitive style.
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Affiliation(s)
- Mathilde Lalot
- Laboratoire Ethologie Cognition Développement, UPL, Université Paris Nanterre, F92000 Nanterre, France.
| | - Dalila Bovet
- Laboratoire Ethologie Cognition Développement, UPL, Université Paris Nanterre, F92000 Nanterre, France
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Alberto-Orlando S, Calderon JL, Leon-Sosa A, Patiño L, Zambrano-Alvarado MN, Pasquel-Villa LD, Rugel-Gonzalez DO, Flores D, Mera MD, Valencia P, Zuñiga-Velarde JJ, Tello-Cabrera C, Garcia-Bereguiain MA. SARS-CoV-2 transmission from infected owner to household dogs and cats is associated with food sharing. Int J Infect Dis 2022; 122:295-9. [PMID: 35643308 DOI: 10.1016/j.ijid.2022.05.049] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/19/2022] [Accepted: 05/21/2022] [Indexed: 01/25/2023] Open
Abstract
OBJECTIVES Several cases of reverse transmission of SARS-CoV-2 from human to pets were reported during the first year of the COVID-19 pandemic. Accordingly, the World Organization for Animal Health has recommended to improve SARS-CoV-2 surveillance on household animals to assess the risk of transmission between species. After such recommendation, we studied the potential SARS-CoV-2 infection in household dogs and cats in the city of Guayaquil, the most populated city in Ecuador. METHODS Oral and nasal swab samples were collected from dogs and cats within 10 days of a positive SARS-CoV-2 test result of their owners. Total ribonucleic acid was extracted and detection of viral gene targets N and ORF1ab was performed by quantitative reverse transcription polymerase chain reaction. RESULTS From the 50 cats and dogs tested, 12 were SARS-CoV-2 positive, giving a total positivity rate of 24%. A total of 1 of 8 cats tested positive, whereas 11 of 42 dogs were positive, yielding a positivity rate of 12.5% and 26.2%, respectively. SARS-CoV-2 was confirmed by whole genome sequencing. In addition, we also found a statistically significant association between SARS-CoV-2 pet positivity and food sharing with infected owners. CONCLUSION This study is the second active surveillance of SARS-CoV-2 in household dogs and cats in Latin America. Moreover, it is the first study to address the risk factors associated with potential anthropogenic SARS-CoV-2 transmission to domestic cats and dogs. Given the high presence of free-roaming dogs and cats in rural and urban areas in Latin American countries and the high capacity shown by coronaviruses for interspecies transmission, our findings support the view that SARS-CoV-2 surveillance in pets is necessary to better understand the role that pet-human interaction plays in the COVID-19 spread.
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Bucher B, Kuroshima H, Anderson JR, Fujita K. On experimental tests for studying altruism in capuchin monkeys. Behav Processes 2021; 189:104424. [PMID: 34015376 DOI: 10.1016/j.beproc.2021.104424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 05/13/2021] [Accepted: 05/13/2021] [Indexed: 10/21/2022]
Abstract
Altruism is often considered as the ultimate form of prosociality and is defined as any act that benefits others without direct benefit to the actor. Many nonhuman species have been reported to express different forms of altruism, although their expression in experimental studies is highly dependent on the paradigm used. Tufted capuchin monkeys are one of the most studied species; however, the evidence for altruism in this species remains inconclusive. This study aimed to investigate whether two paradigms, adapted from those in which great apes have shown altruism, could be useful for revealing signs of altruistic capabilities in capuchins. Pairs of monkeys were tested in two experiments involving a similar mechanism but with different costs to acting altruistically. The first used a more costly operant sharing task in which an operator could unlock a door to allow a recipient to enter the room and share his food. The second consisted of a less costly helping task, in which the operator's food was secured but he could help the recipient to get other food that was in a locked container. The results suggest that capuchins, although apparently unwilling to share their food in a costly operant situation, might altruistically help selected recipients, in response to requesting by the latter. While our small sample size along with procedural limitations preclude firm conclusions, we discuss how further ameliorations of our tasks could further contribute to the study of altruistic capacities in primates.
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Affiliation(s)
- Benoit Bucher
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, 606-8501, Japan; Japan Society for the Promotion of Science, Chiyoda, Tokyo, 102-0083, Japan.
| | - Hika Kuroshima
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, 606-8501, Japan
| | - James R Anderson
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, 606-8501, Japan
| | - Kazuo Fujita
- Department of Psychology, Graduate School of Letters, Kyoto University, Kyoto, 606-8501, Japan
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Wang C, Huang J, Wan X. A cross-cultural study of beliefs about the influence of food sharing on interpersonal relationships and food choices. Appetite 2021; 161:105129. [PMID: 33548349 DOI: 10.1016/j.appet.2021.105129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 01/10/2021] [Accepted: 01/12/2021] [Indexed: 10/22/2022]
Abstract
We conducted two studies on participants from China and the USA to investigate their beliefs about food sharing. In Study 1, the participants were asked to rate the influence of different types of sharing on the interpersonal relationships between two individuals. Compared to sharing non-food material, both groups expected sharing food to exert a more positive influence on the intimacy and mutual trust between the sharer and the recipient. In Study 2A, the participants were asked to rate to which extent it is appropriate to share a certain food with another person. The results revealed that the solid or liquid state and the type of foods influenced both groups of participants' beliefs about whether a food is appropriate for sharing. In Study 2B, the participants were asked to rate the likelihood of ordering certain foods when they were eating alone, eating together, or sharing food with another person in a restaurant scenario. When sharing food with other people, both groups of participants were less likely to order foods that were inappropriate for sharing and more likely to order foods that were appropriate for sharing, thus suggesting the influence of beliefs about food sharing on food choices. Despite some cross-cultural differences in both studies, the results revealed some cross-cultural shared beliefs about food sharing. These findings suggest that people's beliefs regarding the positive influence of food sharing on interpersonal relationships influence food choices and may help explain why foods are shared while eating with others even there is no social obligation to do so.
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Affiliation(s)
- Chujun Wang
- Department of Psychology, Tsinghua University, Beijing, China
| | - Jianping Huang
- Department of Psychology, Soochow University, Suzhou, China
| | - Xiaoang Wan
- Department of Psychology, Tsinghua University, Beijing, China.
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5
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Bowden-Parry M, Postma E, Boogert NJ. Effects of food type and abundance on begging and sharing in Asian small-clawed otters ( Aonyx cinereus). PeerJ 2020; 8:e10369. [PMID: 33335807 PMCID: PMC7713600 DOI: 10.7717/peerj.10369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 10/25/2020] [Indexed: 11/23/2022] Open
Abstract
Begging for food, a conspicuous solicitation display, is common in a variety of taxa, and it has received extensive research attention in a parent-offspring context. Both theoretical models and empirical evidence suggest that offspring begging can be an honest signal of hunger or a mediator of competition between siblings. At a behavioural mechanistic level, begging for food can be a form of harassment aimed at persuading those in possession of food to share. Food sharing, defined as the transfer of a defendable food item from one individual to another, can vary considerably between species, age-classes and food type and abundance. We investigated the determinants of begging and food-sharing behaviours in Asian small-clawed otters (Aonyx cinereus), a group-living species that commonly exhibits begging in captivity. We presented two captive otter populations with three food types that varied in exploitation complexity, in three different abundances. We predicted that begging rates would be highest when food was in lowest abundance and hardest to exploit, and that increased begging would lead to increased food sharing. We found that, over time, increased begging rates were indeed correlated with increased food transfers, but neither food type complexity nor abundance affected begging or sharing rates. However, age category was significantly associated with begging and food sharing rates: juvenile otters begged more and shared less than adult otters. The results from this first experimental study on begging and food sharing within the Mustelid family begin to reveal some of the drivers of these behaviours.
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Affiliation(s)
- Madison Bowden-Parry
- Department of Biosciences, University of Exeter, Penryn, Cornwall, United Kingdom
| | - Erik Postma
- Department of Biosciences, University of Exeter, Penryn, Cornwall, United Kingdom
| | - Neeltje J Boogert
- Department of Biosciences, University of Exeter, Penryn, Cornwall, United Kingdom
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6
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Schino G, Boggiani L, Mortelliti A, Pinzaglia M, Addessi E. Testing the two sides of indirect reciprocity in tufted capuchin monkeys. Behav Processes 2020; 182:104290. [PMID: 33253784 DOI: 10.1016/j.beproc.2020.104290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 10/13/2020] [Accepted: 11/24/2020] [Indexed: 10/22/2022]
Abstract
We addressed two different aspects of indirect reciprocity in tufted capuchin monkeys (Sapajus spp.) studying two common cooperative behaviours, grooming and food sharing. In an observational study, we tested whether capuchin monkeys were more likely to groom an individual that had just groomed a group mate than an individual that had not groomed anybody. In an experimental study, we tested whether capuchin monkeys were more likely to share their food with a partner when in the presence of a bystander (or of an image of the eyes of a conspecific) than when alone with their partner. In the observational study, we found an increase in the likelihood of receiving grooming after giving grooming, but this effect seemed to depend on social facilitation rather than on indirect reciprocity, as we found a similar effect after receiving (rather than giving) grooming. In the experimental study, the presence of a bystander or of an image of eyes did not affect the amount of food transferred to a group mate. Overall, these results suggest capuchin monkeys do not engage in indirect reciprocity.
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Affiliation(s)
- Gabriele Schino
- Istituto di Scienze e Tecnologie della Cognizione, Consiglio Nazionale delle Ricerche, Rome, Italy.
| | - Ludovica Boggiani
- Istituto di Scienze e Tecnologie della Cognizione, Consiglio Nazionale delle Ricerche, Rome, Italy; Anthropologisches Institut, Universität Zurich, Switzerland
| | - Arianna Mortelliti
- Istituto di Scienze e Tecnologie della Cognizione, Consiglio Nazionale delle Ricerche, Rome, Italy; Dipartimento di Biologia e Biotecnologie, Sapienza Università di Roma, Rome, Italy
| | - Marta Pinzaglia
- Istituto di Scienze e Tecnologie della Cognizione, Consiglio Nazionale delle Ricerche, Rome, Italy; Dipartimento di Biologia Ambientale, Sapienza Università di Roma, Rome, Italy
| | - Elsa Addessi
- Istituto di Scienze e Tecnologie della Cognizione, Consiglio Nazionale delle Ricerche, Rome, Italy
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Gregersen SC, Gillath O. How food brings us together: The ties between attachment and food behaviors. Appetite 2020; 151:104654. [PMID: 32165269 DOI: 10.1016/j.appet.2020.104654] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Revised: 01/16/2020] [Accepted: 03/07/2020] [Indexed: 11/17/2022]
Abstract
Interpersonal food behaviors, such as food sharing and food offering, are associated with closeness between people and thought to facilitate the formation and strengthening of social bonds. Despite the importance of food and food-related behavior in general and for social bonding specifically, there is relatively little research about the psychological underpinnings of food-related behavior within relationship science. To fill this gap, we conducted three studies focusing on food behaviors and attachment style. In Study 1, we found attachment avoidance to be negatively associated with engagement in food sharing behaviors, and with a lower likelihood of dating a potential partner due to the partner's food preferences. In Study 2, we found that enhancing attachment security increased the tendency to offer one's food to a fellow participant. In Study 3, we found that the tendency to accept food from a fellow participant was positively associated with attachment anxiety, but security priming did not affect this tendency. Implications for attachment, close relationships, and food sciences are discussed.
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Bădescu I, Sicotte P, Sandel AA, Desruelle KJ, Curteanu C, Watts DP, Sellen DW. Premasticated food transfer by wild chimpanzee mothers with their infants: Effects of maternal parity, infant age and sex, and food properties. J Hum Evol 2020; 143:102794. [PMID: 32371289 DOI: 10.1016/j.jhevol.2020.102794] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 03/26/2020] [Accepted: 03/26/2020] [Indexed: 11/25/2022]
Abstract
Premasticated food transfer, when an individual partially breaks down food through chewing and feeds it to another individual, usually mouth-to-mouth, is described widely across human cultures. This behavior plays an important role in modern humans' strategy of complementary feeding, which involves supplementing maternal milk in infant diets with processed, easily digestible versions of adult foods. The extent to which other primates engage in premasticated food transfer with infants is unclear, as premasticated food transfers have been only occasionally reported in other ape species. We investigated premasticated food transfers in 62 mother-infant pairs of wild chimpanzees at Ngogo, Uganda, as well as unresisted food taking, when mothers passively allow infants to seize food. We evaluated the presence or absence and rates of premasticated food transfer and unresisted food taking relative to maternal parity and infant age and sex and assessed the food species and part used. We found that chimpanzee mothers regularly shared premasticated food with their infants aged between 6 months and 4 years, but they were more likely to share, and more frequently shared, with younger infants. The frequency with which females shared premasticated food may relate to maternal experience, as multiparous females shared premasticated food more often than did first-time mothers, which we did not find with unresisted food taking. Both easy-to-chew, commonly eaten foods and tougher, rarely eaten foods were shared. Premasticated food transfer and unresisted food taking may be infant-rearing strategies to facilitate the transition from a diet of exclusive maternal milk to solid food during early infancy. Premasticated food transfer in particular may provide energetic, immune, or growth benefits to infants through reduced chewing effort and maternal saliva. Given our findings in chimpanzees and earlier reports in other ape species, we suggest that the foundation of complementary feeding, a uniquely hominin strategy, might have been present in a common ancestor shared with the other great apes in the form of premasticated, mouth-to-mouth food transfer by mothers with their offspring.
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Affiliation(s)
- Iulia Bădescu
- Département D'Anthropologie, Université de Montréal, Pavillon Lionel-Groulx, 3150 Jean-Brillant, Montréal, QC, H3T 1N8, Canada.
| | - Pascale Sicotte
- Department of Anthropology and Archaeology, University of Calgary, 2500 University Dr. N.W., Calgary, AB, T2N 1N4, Canada
| | - Aaron A Sandel
- Department of Anthropology, University of Texas at Austin, SAC 4.102, 2201 Speedway Stop C3200, Austin, TX, 78712, USA
| | - Kelly J Desruelle
- Département D'Anthropologie, Université de Montréal, Pavillon Lionel-Groulx, 3150 Jean-Brillant, Montréal, QC, H3T 1N8, Canada
| | - Cassandra Curteanu
- Département D'Anthropologie, Université de Montréal, Pavillon Lionel-Groulx, 3150 Jean-Brillant, Montréal, QC, H3T 1N8, Canada
| | - David P Watts
- Department of Anthropology, Yale University, 10 Sachem Street, New Haven, CT, 06511-3707, USA
| | - Daniel W Sellen
- Department of Anthropology, University of Toronto, 19 Russell Street, Toronto, ON, M5S 2S2, Canada
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Wakefield ML, Hickmott AJ, Brand CM, Takaoka IY, Meador LM, Waller MT, White FJ. New Observations of Meat Eating and Sharing in Wild Bonobos (Pan paniscus) at Iyema, Lomako Forest Reserve, Democratic Republic of the Congo. Folia Primatol (Basel) 2019; 90:179-189. [PMID: 30889597 DOI: 10.1159/000496026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 12/01/2018] [Indexed: 11/19/2022]
Abstract
Bonobos (Pan paniscus) consume a variety of vertebrates, although direct observations remain relatively rare compared to chimpanzees (Pan troglodytes). We report the first direct observations of meat eating and sharing among bonobos at Iyema, Lomako Forest, Democratic Republic of Congo. We collected meat consumption data ad libitum from June to November 2017 over 176.5 observation hours and conducted monthly censuses to measure the abundance of potential prey species. We observed 3 occasions of duiker consumption and found indirect evidence of meat consumption twice (n = 5). We identified the prey species as Weyn's duiker (Cephalophus weynsi) in all 4 cases that we saw the carcass. This species was the most abundant duiker species at Iyema, but other potential prey species were also available. Meat sharing was observed or inferred during all 3 observations. However, the individual controlling the carcass frequently resisted sharing, and aggressive attempts to take the carcass were observed. This report contributes to a growing body of data suggesting that wild bonobos consume meat at higher rates than previously thought, female control of carcasses is frequent but not exclusive, and meat sharing in bonobos is primarily passive but not without aggression.
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Affiliation(s)
- Monica L Wakefield
- Department of Sociology, Anthropology and Philosophy, Northern Kentucky University, Highland Heights, Kentucky, USA,
| | | | - Colin M Brand
- Department of Anthropology, University of Oregon, Eugene, Oregon, USA
| | - Ian Y Takaoka
- Department of Sociology, Anthropology and Philosophy, Northern Kentucky University, Highland Heights, Kentucky, USA
| | - Lindsey M Meador
- Department of Sociology, Anthropology and Philosophy, Northern Kentucky University, Highland Heights, Kentucky, USA
| | - Michel T Waller
- Department of Anthropology, University of Oregon, Eugene, Oregon, USA.,Department of World Languages and Culture, Central Oregon Community College, Bend, Oregon, USA
| | - Frances J White
- Department of Anthropology, University of Oregon, Eugene, Oregon, USA
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Reade AJ, Dillon M, Naug D. Spare to share? How does interindividual variation in metabolic rate influence food sharing in the honeybee? J Insect Physiol 2019; 112:35-38. [PMID: 30472008 DOI: 10.1016/j.jinsphys.2018.11.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 11/13/2018] [Accepted: 11/21/2018] [Indexed: 06/09/2023]
Abstract
A central benefit of group living is the cooperative acquisition and sharing of resources but the costs associated with these processes can set up a potential conflict between individual and group level fitness. Within a honeybee colony, the task of resource acquisition is relegated to the foragers and any interindividual differences in their metabolic rate and the consequent carbohydrate demand may pose a constraint on the amount of resources they can contribute to the colony. We investigated whether the carbohydrate demand of a forager is a function of her metabolic rate and if this impacts the amount of food she shares with the nestmates. Our results show that the sucrose consumption rates of foragers with high metabolic rates did not meet their carbohydrate demand, placing them at an energy deficit while those with lower metabolic rates had an energy surplus. Our food sharing experiments showed a trend but did not detect a significant difference among individuals with different consumption rates in terms of the amount of food they shared with their nestmates. These results suggest that honeybee foragers with different metabolic rates are likely to differ in terms of whether they have an energy surplus or deficit, but more long-term datasets may be required to detect how this may influence food sharing.
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Affiliation(s)
- Abbie J Reade
- Department of Biology, Colorado State University, Fort Collins, USA
| | - Michael Dillon
- Department of Zoology and Physiology, University of Wyoming, Laramie, USA
| | - Dhruba Naug
- Department of Biology, Colorado State University, Fort Collins, USA.
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Abstract
Evolutionary models consider hunting and food sharing to be milestones that paved the way from primate to human societies. Because fossil evidence is scarce, hominoid primates serve as referential models to assess our common ancestors' capacity in terms of communal use of resources, food sharing, and other forms of cooperation. Whereas chimpanzees form male-male bonds exhibiting resource-defense polygyny with intolerance and aggression toward nonresidents, bonobos form male-female and female-female bonds resulting in relaxed relations with neighboring groups. Here we report the first known case of meat sharing between members of two bonobo communities, revealing a new dimension of social tolerance in this species. This observation testifies to the behavioral plasticity that exists in the two Pan species and contributes to scenarios concerning the traits of the last common ancestor of Pan and Homo. It also contributes to the discussion of physiological triggers of in-group/out-group behavior and allows reconsideration of the emergence of social norms in prehuman societies.
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Affiliation(s)
- Barbara Fruth
- Faculty of Science, School of Natural Sciences and Psychology, Liverpool John Moores University, Liverpool, L3 3AF, UK. .,Centre for Research and Conservation, Royal Zoological Society of Antwerp, Koningin Astridplein 20-26, B-2018, Antwerp, Belgium.
| | - Gottfried Hohmann
- Department of Primatology, Max-Planck-Institute for Evolutionary Anthropology, Deutscher Platz 6, D-04103, Leipzig, Germany
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Phimpraphai W, Tangkawattana S, Kasemsuwan S, Sripa B. Social Influence in Liver Fluke Transmission: Application of Social Network Analysis of Food Sharing in Thai Isaan Culture. Adv Parasitol 2018; 101:97-124. [PMID: 29907257 DOI: 10.1016/bs.apar.2018.05.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In northeastern Thai (Isaan) culture traditional raw fish dishes and raw fish-eating habits are common. Eating and sharing meals together among the community's members, especially relatives and neighbours, are a common practice in both daily life and social gathering events. Fish are a significant protein source and are associated with variety of traditional recipes. Cyprinid fish are one of the most preferred fish by Isaan villagers for daily consumption because they are accessible and affordable. Consumption of these fish probably causes the persistence of high endemicity of human liver fluke infection, particularly with Opisthorchis viverrini, in northeast Thailand. Because the consumption of raw cyprinid fish is a well-documented risk factor for liver fluke infection, sharing of risky raw fish dishes may influence disease transmission through a community. Social network analysis was used to investigate fish and fish-based meal sharing among household members in Isaan villages in liver fluke endemic areas. The findings from three studies confirmed the persistence of traditional Isaan raw fish consumption and food-sharing practice. Social connections via food sharing among villagers played an important role in liver fluke infection and transmission dynamics as a risk factor. Thus these sociocultural factors should be taken into account in designing strategies for control of opisthorchiasis and other food-borne illnesses at the community level.
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Phimpraphai W, Tangkawattana S, Sereerak P, Kasemsuwan S, Sripa B. Social network analysis of food sharing among households in opisthorchiasis endemic villages of Lawa Lake, Thailand. Acta Trop 2017; 169:150-156. [PMID: 28188767 DOI: 10.1016/j.actatropica.2017.02.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 11/11/2016] [Accepted: 02/02/2017] [Indexed: 12/20/2022]
Abstract
Consumption of raw fish is a well-documented risk factor for Opisthorchis viverrini infection. Sharing of food, especially raw fish recipes may influence the spread of disease through a community. Using social network analysis of an ego network, we investigated food sharing among households in an Opisthorchis-endemic area. Network centrality properties were used to explain the differences in O. viverrini transmission and control between villages with a low and high prevalence of infection. Information on demography and O. viverrini infection in 2008 from villagers in the Lawa Lake area was extracted from the Tropical Disease Research Center database. The two villages that had the lowest and the highest O. viverrini infection at the household level were recruited. Ten percent of households of each village were randomly sampled. Participatory epidemiology and face-to-face structured interviews guided by a social network questionnaire were used to collect data on livelihood, agricultural patterns, food sources, raw fish eating habits, and other food sharing during daily life and social gatherings. The number of contacts including in-degree and out-degree varied from 0 to 7 in the low-infection village and 0 to 4 in the high-infection village. The mean number of contacts for the food-sharing network among the low- and high-infection villages was 1.64 and 0.73 contacts per household, respectively. Between these villages, the mean number of out-degree (p=0.0125), but not in-degree (p=0.065), was significantly different. Food-sharing differed in numbers of sharing-in and sharing-out between the two villages. Network analysis of food sharing may be of value in designing strategies for opisthorchiasis control at the community level.
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Affiliation(s)
- Waraphon Phimpraphai
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand.
| | - Sirikachorn Tangkawattana
- Department of Veterinary Pathobiology, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease)/Tropical Disease Research Center (TDRC), Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Piya Sereerak
- Graduate School, Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Suwicha Kasemsuwan
- Department of Veterinary Public Health, Faculty of Veterinary Medicine, Kasetsart University, Bangkok 10900, Thailand
| | - Banchob Sripa
- Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand; WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease)/Tropical Disease Research Center (TDRC), Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
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Saenna P, Hurst C, Echaubard P, Wilcox BA, Sripa B. Fish sharing as a risk factor for Opisthorchis viverrini infection: evidence from two villages in north-eastern Thailand. Infect Dis Poverty 2017; 6:66. [PMID: 28372560 PMCID: PMC5379607 DOI: 10.1186/s40249-017-0281-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 03/08/2017] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Foodborne trematodiasis (FBT) is a significant global health problem, with the liver flukes Opisthorchis viverrini, O. felineus, and Clonorchis sinensis contributing to half of the global burden of FBT. North-eastern Thailand where O. viverrini is endemic and un-cooked fish dishes remain an integral part of the food culture has the highest reported incidence of opisthorchiasis, including associated cholangiocarcinoma. Both food sharing and eating practices are potentially important factors in FTB, suggesting an important role for the social ecology of disease transmission in these rural communities. METHODS Two rural Thai-Lao villages that were part of a 12-village project in Northeastern Thailand were selected for detailed investigation of O. viverrini infection risk associated with sharing of raw fish dishes among households. The project included screening individuals for infection and cholangiocarcinoma, a household questionnaire, and offering treatment options for positive individuals. Social network mapping was used to construct raw fish dish-sharing networks and create a proxy variable capturing variability in the degree of food sharing (DFS), measured as the number of different households with which each household shared fish dishes. Measures of associations between DFS, O. viverrini infection, the frequency of raw fish consumption, and the number of raw fish dishes consumed were generated using binary logistic regression, proportional odds ordinal logistic regression, and Poisson regression. RESULTS The results showed that the probability that a household has members infected with O. viverrini increased by ~7% (P < 0.01) for each additional household included in its network. Moreover, the frequency and number of types of raw fish dishes consumed increased significantly as the DFS increased. Of the two villages, that with the highest infection prevalence (48% versus 34.6%) had significantly higher social connectivity overall (P < 0.001). CONCLUSIONS Our findings suggest that the social ecology of human settlements may be key to understanding the transmission dynamics of some FBT. In the case of O. viverrini in Thai-Lao communities, for which food sharing is a traditional practice supporting social cohesion, food sharing network mapping should be incorporated into community-based interventions. These should encourage fish dish preparation methods that minimize infection risk by targeting households with high DFS values.
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Affiliation(s)
- Parichat Saenna
- WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Tropical Disease Research Laboratory, Department of Pathology, Faculty of Medicine, Khon Kaen University, 123 Mittraparb Road, Khon Kaen, 40002 Thailand
- Present Address: Faculty of Education, Khon Kaen University, Khon Kaen, Thailand
| | - Cameron Hurst
- Biostatistics Center of Excellence, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330 Thailand
| | - Pierre Echaubard
- WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Tropical Disease Research Laboratory, Department of Pathology, Faculty of Medicine, Khon Kaen University, 123 Mittraparb Road, Khon Kaen, 40002 Thailand
- Global Health Asia, Integrative Research and Education Program, Faculty of Public Health, Mahidol University, Bangkok, Thailand
- Department of Biology, Laurentian University, 935 Ramsey Lake Road, Sudbury, P3E2C6 ON Canada
| | - Bruce A. Wilcox
- WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Tropical Disease Research Laboratory, Department of Pathology, Faculty of Medicine, Khon Kaen University, 123 Mittraparb Road, Khon Kaen, 40002 Thailand
- Global Health Asia, Integrative Research and Education Program, Faculty of Public Health, Mahidol University, Bangkok, Thailand
| | - Banchob Sripa
- WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Tropical Disease Research Laboratory, Department of Pathology, Faculty of Medicine, Khon Kaen University, 123 Mittraparb Road, Khon Kaen, 40002 Thailand
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Goldstone LG, Sommer V, Nurmi N, Stephens C, Fruth B. Food begging and sharing in wild bonobos (Pan paniscus): assessing relationship quality? Primates 2016; 57:367-76. [PMID: 26970987 DOI: 10.1007/s10329-016-0522-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 02/12/2016] [Indexed: 10/22/2022]
Abstract
Food transfers are often hypothesised to have played a role in the evolution of cooperation amongst humans. However, they also occur in non-human primates, though no consensus exists regarding their function(s). We document patterns of begging for food and success rates as well as associated factors that may influence them for wild bonobos at LuiKotale, Democratic Republic of Congo. Our data, collected over 1074 observation hours, focus on 260 begging events (outside mother-offspring dyads) of which 37 % were successful. We find no support for the "reciprocity hypothesis"-that food is exchanged for grooming and/or sexual benefits; and only weak support for the "sharing under pressure" hypothesis-that food is transferred as a result of harassment and pays off in terms of nutritional benefits for the beggar. Instead, our data support the "assessing-relationships" hypothesis, according to which beggars gain information about the status of their social relationship with the possessor of a food item. This seems to hold particularly true for the frequent, albeit unsuccessful begging events by young females (newly immigrated or hierarchically non-established) towards adult females, although it can be observed in other dyadic combinations independent of sex and age.
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Affiliation(s)
- Lucas G Goldstone
- Department of Biology II, Faculty of Biology, Ludwig Maximilian University of Munich, Großhaderner Straße 2, 82152, Planegg-Martinsried, Germany.,Department of Anthropology, University College London, London, UK
| | - Volker Sommer
- Department of Anthropology, University College London, London, UK
| | - Niina Nurmi
- Department of Behavioral Ecology, Georg August University Goettingen, Goettingen, Germany.,Department of Primatology, Max-Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Colleen Stephens
- Department of Primatology, Max-Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - Barbara Fruth
- Department of Biology II, Faculty of Biology, Ludwig Maximilian University of Munich, Großhaderner Straße 2, 82152, Planegg-Martinsried, Germany. .,Centre for Research and Conservation, Royal Zoological Society of Antwerp, Antwerp, Belgium. .,Department of Developmental and Comparative Psychology, Max-Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
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Carter GG, Wilkinson GS. Intranasal oxytocin increases social grooming and food sharing in the common vampire bat Desmodus rotundus. Horm Behav 2015; 75:150-3. [PMID: 26475061 DOI: 10.1016/j.yhbeh.2015.10.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2015] [Revised: 09/17/2015] [Accepted: 10/09/2015] [Indexed: 01/14/2023]
Abstract
Intranasal oxytocin (OT) delivery has been used to non-invasively manipulate mammalian cooperative behavior. Such manipulations can potentially provide insight into both shared and species-specific mechanisms underlying cooperation. Vampire bats are remarkable for their high rates of allogrooming and the presence of regurgitated food sharing among adults. We administered intranasal OT to highly familiar captive vampire bats of varying relatedness to test for an effect on allogrooming and food sharing. We found that intranasal OT did not have a detectable effect on food-sharing occurrence, but it did increase the size of regurgitated food donations when controlling for dyad and amount of allogrooming. Intranasal OT in females increased the amount of allogrooming per partner and across all partners per trial, but not the number of partners. We also found that the peak effect of OT treatments occurred 30-50min after administration, which is consistent with the reported latency for intranasal OT to affect relevant brain areas in rats and mice. Our results suggest that intranasal OT is a potential tool for influencing dyadic cooperative investments, but measuring prior social relationships may be necessary to interpret the results of hormonal manipulations of cooperative behavior and it may be difficult to alter partner choice in vampire bats using intranasal OT alone.
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Affiliation(s)
- Gerald G Carter
- Department of Biology, University of Maryland, College Park, MD, USA.
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Gurven M, Allen-Arave W, Hill K, Hurtado AM. Reservation food sharing among the Ache of Paraguay. Hum Nat 2015; 12:273-97. [PMID: 26192409 DOI: 10.1007/s12110-001-1000-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2001] [Accepted: 07/02/2001] [Indexed: 11/28/2022]
Abstract
We describe food transfer patterns among Ache Indians living on a permanent reservation. The social atmosphere at the reservation is characterized by a larger group size, a more predictable diet, and more privacy than the Ache typically experience in the forest while on temporary foraging treks. Although sharing patterns vary by resource type and package size, much of the food available at the reservation is given to members of just a few other families. We find significant positive correlations between amounts transferred among pairs of families, a measure of the "contingency" component required of reciprocal altruism models. These preferred sharing partners are usually close kin. We explore implications of these results in light of predictions from current sharing models.
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Affiliation(s)
| | | | - K Hill
- University of New Mexico, USA
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Abstract
The study of reciprocal altruism, or the exchange of goods and services between individuals, requires attention to both evolutionary explanations and proximate mechanisms. Evolutionary explanations have been debated at length, but far less is known about the proximate mechanisms of reciprocity. Our own research has focused on the immediate causes and contingencies underlying services such as food sharing, grooming, and cooperation in brown capuchin monkeys and chimpanzees. Employing both observational and experimental techniques, we have come to distinguish three types of reciprocity. Symmetry-based reciprocity is cognitively the least complex form, based on symmetries inherent in dyadic relationships (e.g., mutual association, kinship). Attitudinal reciprocity, which is more cognitively complex, is based on the mirroring of social attitudes between partners and is exhibited by both capuchin monkeys and chimpanzees. Finally, calculated reciprocity, the most cognitively advanced form, is based on mental scorekeeping and is found only in humans and possibly chimpanzees.
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Affiliation(s)
- Sarah F Brosnan
- Living Links Center, Emory University, Yerkes Primate Center, 954 N. Gatewood Drive, 30329, Atlanta, GA.
| | - Frans B M de Waal
- Living Links Center, Emory University, Yerkes Primate Center, 954 N. Gatewood Drive, 30329, Atlanta, GA
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