International Journal of Primatology最新文献

{"title":"Social Interactions in Wild Black-Fronted Titi Monkeys (Callicebus nigrifrons)","authors":"Aryanne Clyvia, Emily J. E. Messer, Robert J. Young, Cristiane Cäsar","doi":"10.1007/s10764-023-00410-6","DOIUrl":"https://doi.org/10.1007/s10764-023-00410-6","url":null,"abstract":"<p>Social species live in groups that vary in size and composition for many reasons, including resource availability, predation risk, and space restrictions. Their social interactions reflect intraspecific interactions, social bonding, rank, reproductive status, and relatedness. Titi monkeys (<i>Callicebus, Cheracebus</i>, and <i>Plecturocebus</i>) are a diverse group of pitheciid primates that are widely distributed throughout South America. Typically, they live in small groups composed of a breeding pair and their offspring. Although social structure and interactions have been studied in captive titi monkeys, there has been much less research on free-ranging groups. We used all occurrence sampling during a 16-month period to investigate group composition and within-group social interactions in five wild groups of black-fronted titi monkeys, <i>Callicebus nigrifrons</i> living in an Atlantic Forest fragment at the Caraça Private Natural Heritage Reserve in Minas Gerais, Brazil. Unusually for the species, we found more than one adult male in three of our study groups (three adult males in one group and two in the other two groups). As reported for other titi monkeys, the breeding pair interacted more with each other than with any other group members. We also observed that breeding males interacted more with their offspring than breeding females did. Our results expand the existing literature on the social structure of titi monkeys, demonstrating their flexible social organization, providing further evidence of the breeding pair as the nucleus of the group and showing evidence for strong paternal care and stable attachments between breeding pairs in free-ranging <i>C. nigrifrons</i>.</p>","PeriodicalId":14264,"journal":{"name":"International Journal of Primatology","volume":"83 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139067795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Mantled Howler Monkey (Alouatta palliata) Population at La Selva Research Station, Costa Rica: Comparing Censuses in 1992 and 2022","authors":"C. Johnson, Amy L. Schreier, Orlando Vargas Ramírez, Michael D. Wasserman","doi":"10.1007/s10764-023-00409-z","DOIUrl":"https://doi.org/10.1007/s10764-023-00409-z","url":null,"abstract":"","PeriodicalId":14264,"journal":{"name":"International Journal of Primatology","volume":"46 3","pages":"1-5"},"PeriodicalIF":2.5,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139161973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"What is the “Least Bad” Control in Comparative Thanatology Studies? A Comment on Arlet et al., 2023","authors":"Alecia Carter, Elise Huchard","doi":"10.1007/s10764-023-00411-5","DOIUrl":"https://doi.org/10.1007/s10764-023-00411-5","url":null,"abstract":"","PeriodicalId":14264,"journal":{"name":"International Journal of Primatology","volume":"3 12","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138945110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tourist Knowledge of and Beliefs about Wild Capuchin Monkeys (Sapajus nigritus) at Iguazú National Park, Argentina","authors":"María Paula Tujague, María Patricia Casco, Martín Kowalewski, Norma Inés Hilgert","doi":"10.1007/s10764-023-00408-0","DOIUrl":"https://doi.org/10.1007/s10764-023-00408-0","url":null,"abstract":"<p>People's attitudes toward wildlife and how humans perceive themselves in relation to the natural environment are essential components of human-wildlife interactions. Iguazú National Park (INP), in northern Argentina, is visited daily by thousands of tourists. We studied tourists’ knowledge of the diet and daily activity patterns of capuchin monkeys (<i>Sapajus nigritus</i>) and tourists’ beliefs about why monkeys and people interact. We administered a questionnaire (<i>N</i> = 601) at four locations where tourists tend to concentrate between December 2015 and February 2016. We used generalized linear models to examine factors influencing tourists’ knowledge. Our results indicate that tourists had accurate knowledge of the monkeys’ daily activities and diet. Visual contact with monkeys and the presence of a tour guide was linked to better knowledge about daily activities but not about diet. People older than 50 years with a university degree and/or a profession had higher levels of knowledge about diet than younger people without it. We found no effect of whether tourists came from regions with or without monkeys as native fauna or sex on tourists’ levels of knowledge. Most of the tourists believed that monkeys approach people because they are looking for food. Taking photos, curiosity, and feeding monkeys were the most important reasons given for why people approach the monkeys. We found no differences between the sexes in their beliefs about interactions taking place because of food. Our results strengthen the need to move the focus of management strategies from wildlife behavior to human behavior, knowledge, and perceptions about wildlife if we want to improve conservation strategies.</p>","PeriodicalId":14264,"journal":{"name":"International Journal of Primatology","volume":"198 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138744633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seasonal Effects on the Fecal Microbial Composition of Wild Greater Thick-Tailed Galagos (Otolemur crassicaudatus)","authors":"Channen Long, Juan Scheun, Michelle Linda Sauther, Frank P. Cuozzo, James Millette, Adrian Stephen Wolferstan Tordiffe","doi":"10.1007/s10764-023-00407-1","DOIUrl":"https://doi.org/10.1007/s10764-023-00407-1","url":null,"abstract":"<p>Bacterial communities present in the host digestive tract are important for the breakdown and absorption of nutrients required by the host. Changes in diet and the environment are major factors affecting the composition and diversity of the fecal microbiome. In addition to changes in ambient temperature and rainfall, primates living in seasonal temperate environments also need to adapt to seasonal changes in food resource quantity and quality. However, there is a lack of information about the fecal microbiome in African strepsirrhines relative to other primate taxa. We examined the effects of seasonal dietary and environmental changes on fecal microbial alpha diversity and composition in wild greater thick-tailed galagos (<i>Otolemur crassicaudatus</i>) at Lajuma Research Centre, South Africa. We collected fecal samples and assessed food availability and weather in summer and winter across 1 year and used 16S rRNA next-generation sequencing to characterise the fecal microbiome of 49 animals. We found significant increases in rainfall, ambient temperature, and food availability in summer compared with winter. However, we found no significant changes in body mass or in the overall diversity of bacterial species present in fecal samples between the two seasons. We found significant decreases in the abundance of certain bacterial families in winter, suggesting a change in diet. Our findings suggest that greater thick-tailed galagos can find food resources to maintain their body mass throughout the year. Our insights into the seasonal fecal microbiome of greater thick-tailed galagos add to the growing knowledge and understanding of fecal microbiomes in primates and how they help primates cope with changes to their environments.</p>","PeriodicalId":14264,"journal":{"name":"International Journal of Primatology","volume":"22 3","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138527493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evolution of Humanity","authors":"Sarah E. DeTroy, Satoshi Hirata, Michio Nakamura, Daniel B. M. Haun, Edwin J. C. van Leeuwen","doi":"10.1007/s10764-023-00404-4","DOIUrl":"https://doi.org/10.1007/s10764-023-00404-4","url":null,"abstract":"<p>In 1952, Kinji Imanishi wrote a thought-provoking essay on the nature of animal societies. In this essay, he applied the concept of human culture (which he referred to as <i>Karuchua</i>) to nonhuman animals by giving different taxa a voice in a fable-like conversation, thereby aptly transcending speciesism. While thoroughly inspiring for scholars who have mastered the Japanese language, the essay was only known to non-Japanese-speakers by its English abstract. Here, we unveil the rest of the essay for the English-speaking community. Furthermore, to contextualize the seminal text, we asked contemporary scholars working in the field of (animal) culture to comment on the essay in a conversational manner akin to the structure of the essay itself. To guide this conversation, we asked the scholars to answer the questions: “What was your first impression of the essay, and how has your own work been influenced, either directly or indirectly, by Dr Imanishi’s work?” and “In what way has Dr Imanishi’s concept of <i>Karuchua</i> been encompassed by Western approaches?” What ensued now lies before you. We feel privileged to present to you the first English translation of the original Japanese essay by Kinji Imanishi that has already inspired so many scholars and nonscholars alike in their quest for understanding the nature of social life.</p>","PeriodicalId":14264,"journal":{"name":"International Journal of Primatology","volume":"17 1","pages":""},"PeriodicalIF":2.5,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138527496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evidence of Imitation in Trained Gorillas (Gorilla gorilla gorilla)","authors":"Lara Carrasco, Bárbara Martín-Maldonado, Miguel Calvo, Montserrat Colell","doi":"10.1007/s10764-023-00405-3","DOIUrl":"https://doi.org/10.1007/s10764-023-00405-3","url":null,"abstract":"","PeriodicalId":14264,"journal":{"name":"International Journal of Primatology","volume":"73 21","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134901275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Activity Budget and Sociality of the Northern Lesser Galago, Galago senegalensis","authors":"Grace Ellison, Martin Jones, Bradley Cain, Caroline M. Bettridge","doi":"10.1007/s10764-023-00406-2","DOIUrl":"https://doi.org/10.1007/s10764-023-00406-2","url":null,"abstract":"Abstract Complex sociality in primates often is argued to have evolved after the appearance of diurnal activity. Studying the behaviour of nocturnal primates is fundamental to understanding the evolutionary origins of primate behaviour and ecology, yet much less is known about the nature of sociality in nocturnal primate species than their diurnal counterparts. We investigated group size, communication, and social interactions in free-ranging, Northern lesser galagos ( Galago senegalensis ) and present an activity budget and assessment of temporal variation in their behaviour. We collected continuous behavioural data using focal follows at three different stages of the night from individuals at Kwakuchinja, Northern Tanzania. We also collected group size data from Northern lesser galagos at Fongoli, Southeastern Senegal, and Lolldaiga Hills Ranch, Central Kenya. We categorised behaviours and, where sample sizes permitted, used Kruskal–Wallis tests to compare the durations of observed behaviours between the morning (pre-dawn), evening (from dusk), and later in the night. We analysed 140 focal follows (31.4 h of continuous behavioural data) and found that the proportion of time spent foraging, inactive, in locomotion, in self-maintenance, and vigilant, varied across the three stages of the night; galagos spent a great deal of their time inactive in the morning and foraging was more prevalent in the evening. Group size at Kwakuchinja was significantly larger than at Fongoli or LHR. Galagos were in groups of two or more in the majority of encounters at Kwakuchinja (55%; N = 76), rather than alone, but spent most of their nighttime activity alone at Fongoli (79%; N = 185) and LHR (80%; N = 142). Overall vocalisation rates were higher in the morning than other times throughout the night, although contact calls were relatively more frequent in the evening than other times. We recorded both affiliative and agonistic social interactions, but these contributed almost nothing to the overall activity budget. Our preliminary investigation into the social structure of Northern lesser galagos suggests that there are population differences in sociality and that overall, they connect more through vocalisations than through direct social interactions, thereby avoiding some of the potential costs associated with group-living. This variation in social organization suggests that we have more to learn about the drivers of sociality in nocturnal primates and the nature of their social structure.","PeriodicalId":14264,"journal":{"name":"International Journal of Primatology","volume":"8 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Coexistence of People and Bearded Capuchins (Sapajus libidinosus) in a Nonindustrial Ecosystem: An Assessment of Tourist and Local Perceptions in the Coastal Area of Maranhão, Brazil","authors":"Alexandra N. Hofner, Paulo Carvalho, Mariana Pissarra Matos, Andrea Presotto, Ricardo Rodrigues dos Santos, Roberta Salmi","doi":"10.1007/s10764-023-00402-6","DOIUrl":"https://doi.org/10.1007/s10764-023-00402-6","url":null,"abstract":"","PeriodicalId":14264,"journal":{"name":"International Journal of Primatology","volume":"20 S1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135873183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Importance of Representative Sampling for Home Range Estimation in Field Primatology","authors":"Odd T. Jacobson, Margaret C. Crofoot, Susan Perry, Kosmas Hench, Brendan J. Barrett, Genevieve Finerty","doi":"10.1007/s10764-023-00398-z","DOIUrl":"https://doi.org/10.1007/s10764-023-00398-z","url":null,"abstract":"Abstract Understanding the amount of space required by animals to fulfill their biological needs is essential for comprehending their behavior, their ecological role within their community, and for effective conservation planning and resource management. The space-use patterns of habituated primates often are studied by using handheld GPS devices, which provide detailed movement information that can link patterns of ranging and space-use to the behavioral decisions that generate these patterns. However, these data may not accurately represent an animal’s total movements, posing challenges when the desired inference is at the home range scale. To address this problem, we used a 13-year dataset from 11 groups of white-faced capuchins ( Cebus capucinus imitator ) to examine the impact of sampling elements, such as sample size, regularity, and temporal coverage, on home range estimation accuracy. We found that accurate home range estimation is feasible with relatively small absolute sample sizes and irregular sampling, as long as the data are collected over extended time periods. Also, concentrated sampling can lead to bias and overconfidence due to uncaptured variations in space use and underlying movement behaviors. Sampling protocols relying on handheld GPS for home range estimation are improved by maximizing independent location data distributed across time periods much longer than the target species’ home range crossing timescale.","PeriodicalId":14264,"journal":{"name":"International Journal of Primatology","volume":" 32","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135813876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}