American Journal of Primatology最新文献

{"title":"Leadership and the finder's advantage in mantled howler monkeys","authors":"Aylén D. Giannetti-Domínguez,&nbsp;Ariadna Rangel-Negrín,&nbsp;Alejandro Coyohua-Fuentes,&nbsp;Pedro A. D. Dias","doi":"10.1002/ajp.23651","DOIUrl":"10.1002/ajp.23651","url":null,"abstract":"<p>Leading collective movements and arriving first at feeding sites may improve food acquisition. Specifically, the first individual to discover and exploit a feeding site may gain a feeding advantage known as the “finder's advantage.” The aim of this research was to verify if the probability of leading group movements to feeding sites in mantled howler monkeys (<i>Alouatta palliata</i>) varied by sex and reproductive status, and whether finders had higher foraging success than followers. We studied 18 adult individuals from two groups in La Flor de Catemaco over a year (978 h), and sampled group movements (<i>n</i> = 211) and foraging behavior (<i>n</i> = 215 feeding episodes). Gestating females were leaders and finders of group movements to feeding sites more often than expected but were also replaced in the leading position more frequently than individuals of other sex/reproductive states. Feeding behavior was not influenced by the order of arrival at feeding sites per se, but gestating females had higher food intake rate, bite rate, and feeding time when arriving earlier (i.e., occupying front group positions) than later. Therefore, leadership and the finder's advantage occur in this species and are probably employed by gestating females to maintain their energetic condition.</p>","PeriodicalId":7662,"journal":{"name":"American Journal of Primatology","volume":"86 8","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141157378","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":"Oesophagostomum stephanostomum causing parasitic granulomas in wild chimpanzees (Pan troglodytes verus) of Taï National Park, Côte d'Ivoire","authors":"Jenny E. Jaffe,&nbsp;Sonja Metzger,&nbsp;Kerstin Mätz-Rensing,&nbsp;Alexis Ribas,&nbsp;Roman M. Wittig,&nbsp;Fabian H. Leendertz","doi":"10.1002/ajp.23652","DOIUrl":"10.1002/ajp.23652","url":null,"abstract":"<p>Nematodes belonging to the genus <i>Oesophagostomum</i> frequently infect wild chimpanzees (<i>Pan troglodytes</i>) across widely separated field sites. Nodular lesions (granulomas) containing <i>Oesophagostomum</i> are commonly seen in the abdomen of infected chimpanzees post-mortem. At Taï National Park, Côte d'Ivoire, previous studies have identified larvae of a variety of <i>Oesophagostomum</i> spp. in wild chimpanzee stool, based on sequencing of larval DNA, and nodular lesions associated with <i>Oesophagostomum</i>, identified morphologically to the genus level but not sequenced. Here we present three recent cases of parasitic granulomas found post-mortem in chimpanzees at Taï. We complement descriptions of gross pathology, histopathology and parasitology with PCR and sequencing of DNA isolated from the parasitic nodules and from adult worms found inside the nodules. In all three cases, we identify <i>Oesophagostomum stephanostomum</i> as the causative agent. The sequences from this study were identical to the only other published sequences from nodules in nonhuman primates—those from the wild chimpanzees of Gombe, Tanzania.</p>","PeriodicalId":7662,"journal":{"name":"American Journal of Primatology","volume":"86 8","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajp.23652","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141160844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First noncontact millimeter-wave radar measurement of heart rate in great apes: Validation in chimpanzees (Pan troglodytes)","authors":"Takuya Matsumoto,&nbsp;Itsuki Iwata,&nbsp;Takuya Sakamoto,&nbsp;Satoshi Hirata","doi":"10.1002/ajp.23633","DOIUrl":"10.1002/ajp.23633","url":null,"abstract":"<p>Heart rate is a crucial vital sign and a valuable indicator for assessing the physical and psychological condition of a target animal. Heart rate contributes to (1) fundamental information for cognitive research, (2) an indicator of psychological and physical stress, and (3) improving the animal welfare of captive animals, especially in nonhuman primate studies. Heart rate has been measured using a contact-type device; however, the device burdens the target animals and that there are risks associated with anesthesia during installation. This study explores the application of heartbeat measurement techniques using millimeter-wave radar, primarily developed for humans, as a remote and noninvasive method for measuring the heart rate of nonhuman primates. Through a measurement test conducted on two chimpanzees, we observed a remarkable correspondence between the peak frequency spectrum of heart rate estimated using millimeter-wave radar and the mean value obtained from electrocardiograph data, thereby validating the accuracy of the method. To the best of our knowledge, this is the first demonstration of the precise measurement of great apes' heart rate using millimeter-wave radar technology. Compared to heart rate measurement using video analysis, the method using millimeter-wave radar has the advantage that it is less susceptible to weather and lighting conditions and that measurement techniques for multiple individuals have been developed for human subjects, while its disadvantage is that validation of measurement from long distances has not been completed. Another disadvantage common to both methods is that measurement becomes difficult when the movement of the target individual is large. The possibility of noncontact measurement of heart rate in wild and captive primates will undoubtedly open up a new research area while taking animal welfare into consideration.</p>","PeriodicalId":7662,"journal":{"name":"American Journal of Primatology","volume":"86 8","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajp.23633","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141075303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correcting the record: Phonetic potential of primate vocal tracts and the legacy of Philip Lieberman (1934−2022)","authors":"Axel G. Ekström","doi":"10.1002/ajp.23637","DOIUrl":"10.1002/ajp.23637","url":null,"abstract":"<p>The phonetic potential of nonhuman primate vocal tracts has been the subject of considerable contention in recent literature. Here, the work of Philip Lieberman (1934−2022) is considered at length, and two research papers—both purported challenges to Lieberman's theoretical work—and a review of Lieberman's scientific legacy are critically examined. I argue that various aspects of Lieberman's research have been consistently misinterpreted in the literature. A paper by Fitch et al. overestimates the would-be “speech-ready” capacities of a rhesus macaque, and the data presented nonetheless supports Lieberman's principal position—that nonhuman primates cannot articulate the full extent of human speech sounds. The suggestion that no vocal anatomical evolution was necessary for the evolution of human speech (as spoken by all normally developing humans) is not supported by phonetic or anatomical data. The second challenge, by Boë et al., attributes vowel-like qualities of baboon calls to articulatory capacities based on audio data; I argue that such “protovocalic” properties likely result from disparate articulatory maneuvers compared to human speakers. A review of Lieberman's scientific legacy by Boë et al. ascribes a view of speech evolution (which the authors term “laryngeal descent theory”) to Lieberman, which contradicts his writings. The present article documents a pattern of incorrect interpretations of Lieberman's theoretical work in recent literature. Finally, the apparent trend of vowel-like formant dispersions in great ape vocalization literature is discussed with regard to Lieberman's theoretical work. The review concludes that the “Lieberman account” of primate vocal tract phonetic capacities remains supported by research: the ready articulation of fully human speech reflects species-unique anatomy.</p>","PeriodicalId":7662,"journal":{"name":"American Journal of Primatology","volume":"86 8","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajp.23637","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140915594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Golden lion tamarin metapopulation dynamics five years after heavy losses to yellow fever","authors":"James M. Dietz,&nbsp;Jennifer Mickelberg,&nbsp;Kathy Traylor-Holzer,&nbsp;Andréia F. Martins,&nbsp;Mateus N. Souza,&nbsp;Sarah J. Hankerson","doi":"10.1002/ajp.23635","DOIUrl":"10.1002/ajp.23635","url":null,"abstract":"<p>The golden lion tamarin (GLT) is an Endangered primate endemic to Brazil's lowland Atlantic Forest. After centuries of deforestation and capture for the pet trade, only a few hundred individuals survived, all in isolated forest fragments 85 km from Rio de Janeiro city. Intensive conservation actions, including reintroduction of zoo-born tamarins, increased numbers to about 3700 in 2014. The most severe yellow fever epidemic/epizootic in Brazil in 80 years reduced two of the largest GLT populations by over 90%. Herein we report the results of a 2023 survey of GLTs designed to examine the dynamics of population recovery following yellow fever. Results indicate that populations hard hit by yellow fever are recovering due in part to immigration from adjacent forest fragments. No local extirpations were observed. About 4800 GLTs live in the survey area. This represents a 31% increase since the baseline survey completed in 2014. Two factors explain most of the increase: four large areas that had no GLTs or very low-density populations in 2014 are now at moderate density (three areas) or low density (one area), explaining 71% of overall increase since 2014. Increase in forest area within our survey area may explain up to 16% of the increase in GLT numbers since 2014. Results of computer simulations suggest that strengthening forest connectivity will facilitate metapopulation resilience in the face of mortality factors such as yellow fever.</p>","PeriodicalId":7662,"journal":{"name":"American Journal of Primatology","volume":"86 7","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140910853","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":"A simple assay for measuring tannin-protein precipitation capacity offers insights into the diet and food choice of black howler monkeys (Alouatta pigra)","authors":"María Fernanda Alvarez-Velazquez,&nbsp;Fabiola Carolina Espinosa-Gómez,&nbsp;John F. Aristizabal,&nbsp;Paul A. Garber,&nbsp;Juan Carlos Serio-Silva","doi":"10.1002/ajp.23638","DOIUrl":"10.1002/ajp.23638","url":null,"abstract":"<p>Phenolics, like tannins, are plant-specialized metabolites that play a protective role against herbivory. Tannins can reduce palatability and bind with proteins to reduce digestibility, acting as deterrents to feeding and impacting nutrient extraction by herbivores. Some assays measure tannin and total phenolics content in plants but lack determination of their biological effects, hindering the interpretation of tannin function in herbivory and its impacts on animal behavior and ecology. In this study, we successfully applied the radial diffusion assay to assess tannin protein precipitation (PP) capacity and evaluate the anti-nutritional effects of tannins in food plants (<i>n</i> = 24) consumed by free-ranging black howler monkeys (<i>Alouatta pigra</i>) in Tabasco, Mexico. We found PP rings in five plant species consumed by the monkeys. The mature fruit of <i>Inga edulis</i> was the most consumed food plant, despite having a high tannin PP capacity (56.66 mg tannic acid equivalent/g dry matter). These findings highlight the presence of tannins in the black howler diet and provide insight into the primates' resilience and potential strategies for coping with anti-nutritional aspects of the diet.</p>","PeriodicalId":7662,"journal":{"name":"American Journal of Primatology","volume":"86 7","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140875633","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":"Developmental milestones in captive Galago moholi.","authors":"Brenna R McGovern-Lind, Kathryn A Proffitt, Scot E E King, Hannah M Rader, Dominic A Violi, Catherine J Llera Martin, Katherine Searight, Matthew Kehrer, Brandon A Yeropoli, Jesse W Young, Christopher J Vinyard, Valerie B DeLeon, Timothy D Smith","doi":"10.1002/ajp.23634","DOIUrl":"https://doi.org/10.1002/ajp.23634","url":null,"abstract":"<p><p>Systems of the body develop in a modular manner. For example, neural development in primates is generally rapid, whereas dental development varies much more. In the present study, we examined development of the skull, teeth, and postcrania in a highly specialized leaping primate, Galago moholi. Eighteen specimens ranging from birth to adult were studied. Bones, teeth, and the cranial cavity (i.e., endocast) were reconstructed with Amira software based on microCT cross-referenced to histology. Amira was also used to compute endocast volume (as a proxy for brain size). Reconstructions of the wrist and ankle show that ossification is complete at 1 month postnatally, consistent with the onset of leaping locomotion in this species. Endocranial volume is less than 50% of adult volume at birth, ~80% by 1 month, and has reached adult volume by 2 months postnatal age. Full deciduous dentition eruption occurs by 2 weeks, and the young are known to begin capturing and consuming arthropods on their own by 4 weeks, contemporaneous with the timing of bone and ankle ossification that accompanies successful hunting. The modular pattern of development of body systems in Galago moholi provides an interesting view of a \"race\" to adult morphology for some joints that are critical for specialized leaping and clinging, rapid crown mineralization to begin a transitional diet, but perhaps more prolonged reliance on nursing to support brain growth.</p>","PeriodicalId":7662,"journal":{"name":"American Journal of Primatology","volume":" ","pages":"e23634"},"PeriodicalIF":2.4,"publicationDate":"2024-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140875634","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":"Ethnoprimatology reveals new extended distribution of critically endangered banded langur Presbytis femoralis (Martin, 1838) in Pahang, Malaysia: Insights from indigenous traditional knowledge and molecular analysis","authors":"Hidayah Haris,&nbsp;Nursyuhada Othman,&nbsp;Munian Kaviarasu,&nbsp;Muhammad Faudzir Najmuddin,&nbsp;Nurfatiha Akmal Fawwazah Abdullah-Fauzi,&nbsp;Farah Farhana Ramli,&nbsp;Nur Hartini Sariyati,&nbsp;Mohd Lokman Ilham-Norhakim,&nbsp;Badrul Munir Md-Zain,&nbsp;Muhammad Abu Bakar Abdul-Latiff","doi":"10.1002/ajp.23631","DOIUrl":"10.1002/ajp.23631","url":null,"abstract":"<p>The banded langur (Presbytis femoralis) is a critically endangered primate, which within Malaysia has not been known to extend significantly outside the state of Johor. Traditionally, distribution studies on this highly threatened primate have relied on conventional methods such as DNA identification, live counting, and camera trapping. However, ethnoprimatology offers an alternative approach to data collection, involving the active participation of indigenous and local communities possessing valuable knowledge and experience with local primate species. This study employed an integrated approach incorporating ethnoprimatology by utilizing pooled local expert opinion, local surveys, interviews, and fecal DNA analysis, resulting in a novel distribution range for the banded langur. The combination of expert opinions revealed this species' most optimistic distribution scenario across Johor and Pahang, inhabiting various ecosystems, including lowland forests, peat swamps, and human-modified landscapes. Further interviews and surveys conducted within the Orang Asli community in Tasik Chini and Tasek Bera have provided additional support for the revised distribution, documenting occurrences of banded langur utilization in indigenous practices, such as food consumption, cultural beliefs, medicinal applications, and craftsmanship. Phylogenetic analysis demonstrated genetic differentiation between populations in Johor and Pahang, with the populations in the southern part of Peninsular Malaysia likely serving as ancestral sources for other populations. Consequently, this study not only elucidated the updated distribution of banded langur through DNA records and direct observations but also established the efficacy of ethnoprimatology as a precursory tool for uncovering the present distribution patterns of other primate species in Malaysia.</p>","PeriodicalId":7662,"journal":{"name":"American Journal of Primatology","volume":"86 11","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140837559","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":"Primate conservation: A public issue?","authors":"Alexandria E. Cosby,&nbsp;Bertrand Andriatsitohaina,&nbsp;Raquel Archie,&nbsp;Cora Jules,&nbsp;Keriann C. McGoogan,&nbsp;Maya Persram,&nbsp;Mamy Razafitsalama,&nbsp;Arayelle Young,&nbsp;Travis S. Steffens","doi":"10.1002/ajp.23632","DOIUrl":"10.1002/ajp.23632","url":null,"abstract":"<p>Nonhuman primates (primates) are one of the most endangered mammalian taxa in the world. In the Global North, primates are considered exotic species and, as such, humans' impact on primate conservation and responsibility to protect primates is often ignored. This view differs from the spectrum of relations and attitudes of humans that live in connection to primates, which can include viewing these animals as culturally/religiously significant, cohabitors of forests, nuisances, or sources of protein. While conservationists argue that primates deserve our protection, the conservation crisis facing primates is rarely framed as a public issue, in contrast to other global crises, such as climate change. However, over half of the world's human population lives within 100 km of primate habitat. Thus, humans and primates share the same environments. We suggest leveraging a holistic approach, such as One Health, that considers the interconnectedness of primates, humans, and their shared environments, through the lens of public anthropology. By approaching primate conservation as an intersectional issue that affects and is affected by humans, researchers and conservationists can identify strategies that simultaneously protect primates and address global inequities that frequently affect people in primate range countries. Reflexive research practices further allow academics to consider the broader impact of their ecological research through means such as publicly accessible dissemination of results, equitable capacity-building of high-quality personnel in primate range countries, and social activism. The use of inter-, multi-, and transdisciplinary concepts and methodology can address the intersectional challenges associated with implementing ethical and sustainable primate conservation measures.</p>","PeriodicalId":7662,"journal":{"name":"American Journal of Primatology","volume":"87 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajp.23632","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140652962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Genetic characterization of a captive marmoset (Callithrix jacchus) colony using genotype-by-sequencing","authors":"Shelley A. Cole,&nbsp;Martha M. Lyke,&nbsp;Clinton Christensen,&nbsp;Deborah Newman,&nbsp;Alec Bagwell,&nbsp;Samuel Galindo,&nbsp;Jeremy Glenn,&nbsp;Donna G. Layne-Colon,&nbsp;Ken Sayers,&nbsp;Suzette Tardif,&nbsp;Laura A. Cox,&nbsp;Corinna Ross,&nbsp;Ian H. Cheeseman","doi":"10.1002/ajp.23630","DOIUrl":"10.1002/ajp.23630","url":null,"abstract":"<p>The marmoset is a fundamental nonhuman primate model for the study of aging, neurobiology, and many other topics. Genetic management of captive marmoset colonies is complicated by frequent chimerism in the blood and other tissues, a lack of tools to enable cost-effective, genome-wide interrogation of variation, and historic mergers and migrations of animals between colonies. We implemented genotype-by-sequencing (GBS) of hair follicle derived DNA (a minimally chimeric DNA source) of 82 marmosets housed at the Southwest National Primate Research Center (SNPRC). Our primary goals were the genetic characterization of our marmoset population for pedigree verification and colony management and to inform the scientific community of the functional genetic makeup of this valuable resource. We used the GBS data to reconstruct the genetic legacy of recent mergers between colonies, to identify genetically related animals whose relationships were previously unknown due to incomplete pedigree information, and to show that animals in the SNPRC colony appear to exhibit low levels of inbreeding. Of the &gt;99,000 single-nucleotide variants (SNVs) that we characterized, &gt;9800 are located within gene regions known to harbor pathogenic variants of clinical significance in humans. Overall, we show the combination of low-resolution (sparse) genotyping using hair follicle DNA is a powerful strategy for the genetic management of captive marmoset colonies and for identifying potential SNVs for the development of biomedical research models.</p>","PeriodicalId":7662,"journal":{"name":"American Journal of Primatology","volume":"86 7","pages":""},"PeriodicalIF":2.4,"publicationDate":"2024-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140662272","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}