Primates最新文献_第4页

IF 1.3 4区生物学

Primates Pub Date : 2024-07-01 DOI: 10.1007/s10329-024-01144-6

Warren Y Brockelman

引用次数: 0

Cryopreservation of spermatozoa from black-and-gold howler monkeys (Alouatta caraya) using egg yolk-based or soy lecithin-based extenders. 使用基于蛋黄或大豆卵磷脂的扩展剂冷冻保存黑金吼猴（Alouatta caraya）的精子。

IF 1.3 4区生物学

Primates Pub Date : 2024-07-01 Epub Date: 2024-05-18 DOI: 10.1007/s10329-024-01136-6

Fernanda Carvalho Burch, Marcílio Nichi, Camilla Mota Mendes, Mayra Elena Ortiz D'Avila Assumpção, José Maurício Barbanti Duarte, Rodrigo Del Rio do Valle

{"title":"Cryopreservation of spermatozoa from black-and-gold howler monkeys (Alouatta caraya) using egg yolk-based or soy lecithin-based extenders.","authors":"Fernanda Carvalho Burch, Marcílio Nichi, Camilla Mota Mendes, Mayra Elena Ortiz D'Avila Assumpção, José Maurício Barbanti Duarte, Rodrigo Del Rio do Valle","doi":"10.1007/s10329-024-01136-6","DOIUrl":"10.1007/s10329-024-01136-6","url":null,"abstract":"There are more than 200 species and subspecies of Neotropical Primates of which more than 40% are listed as threatened by the IUCN Red List of Threatened Species. Both in situ and ex situ conservation programs can benefit from the use of assisted reproductive technologies. The objective of this study was to evaluate, for the first time, cryopreservation techniques for Alouatta caraya semen. Semen samples were collected from five adult males, analyzed, and frozen in either Test-egg yolk or Test-soy lecithin-based extenders containing either 3 or 4% glycerol. Frozen-thawed samples were analyzed at 10, 40, and 80 min post-thaw. Egg yolk-based extenders were overall better than soy lecithin-based extenders. There was no significant difference between 3 and 4% glycerol in any of the parameters analyzed, however, 4% glycerol in egg yolk-based extender produced more favorable results for total motility, intact plasma membrane, lipid peroxidation, and DNA fragmentation index. This study brought novel information on semen characteristics and cryopreservation aspects for A. caraya, which can help shape future experiments to improve the outcome of frozen-thawed sperm for this and other species of Neotropical primates.","PeriodicalId":20468,"journal":{"name":"Primates","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140959016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Deep learning for automatic facial detection and recognition in Japanese macaques: illuminating social networks. 用于日本猕猴面部自动检测和识别的深度学习：照亮社交网络。

IF 1.3 4区生物学

Primates Pub Date : 2024-07-01 Epub Date: 2024-05-17 DOI: 10.1007/s10329-024-01137-5

Julien Paulet, Axel Molina, Benjamin Beltzung, Takafumi Suzumura, Shinya Yamamoto, Cédric Sueur

{"title":"Deep learning for automatic facial detection and recognition in Japanese macaques: illuminating social networks.","authors":"Julien Paulet, Axel Molina, Benjamin Beltzung, Takafumi Suzumura, Shinya Yamamoto, Cédric Sueur","doi":"10.1007/s10329-024-01137-5","DOIUrl":"10.1007/s10329-024-01137-5","url":null,"abstract":"Individual identification plays a pivotal role in ecology and ethology, notably as a tool for complex social structures understanding. However, traditional identification methods often involve invasive physical tags and can prove both disruptive for animals and time-intensive for researchers. In recent years, the integration of deep learning in research has offered new methodological perspectives through the automatisation of complex tasks. Harnessing object detection and recognition technologies is increasingly used by researchers to achieve identification on video footage. This study represents a preliminary exploration into the development of a non-invasive tool for face detection and individual identification of Japanese macaques (Macaca fuscata) through deep learning. The ultimate goal of this research is, using identification done on the dataset, to automatically generate a social network representation of the studied population. The current main results are promising: (i) the creation of a Japanese macaques' face detector (Faster-RCNN model), reaching an accuracy of 82.2% and (ii) the creation of an individual recogniser for the Kōjima Island macaque population (YOLOv8n model), reaching an accuracy of 83%. We also created a Kōjima population social network by traditional methods, based on co-occurrences on videos. Thus, we provide a benchmark against which the automatically generated network will be assessed for reliability. These preliminary results are a testament to the potential of this approach to provide the scientific community with a tool for tracking individuals and social network studies in Japanese macaques.","PeriodicalId":20468,"journal":{"name":"Primates","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140959049","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Toxic tasting: how capuchin monkeys avoid grasshoppers' chemical defenses. 尝毒：卷尾猴如何躲避蚱蜢的化学防御。

IF 1.3 4区生物学

Primates Pub Date : 2024-07-01 Epub Date: 2024-05-25 DOI: 10.1007/s10329-024-01133-9

Henrique P Rufo, Luiza G Ferreira, Eduardo B Ottoni, Tiago Falótico

{"title":"Toxic tasting: how capuchin monkeys avoid grasshoppers' chemical defenses.","authors":"Henrique P Rufo, Luiza G Ferreira, Eduardo B Ottoni, Tiago Falótico","doi":"10.1007/s10329-024-01133-9","DOIUrl":"10.1007/s10329-024-01133-9","url":null,"abstract":"Platyrrhines consume many species of arthropods in the order Orthoptera. Some species of orthopterans can produce chemical defenses that render them toxic or unpalatable and thus act as predator deterrents. These species include the stick grasshoppers (family Proscopiidae), which are widely distributed in the Caatinga biome in northeastern Brazil, which comprises part of the distribution of capuchin monkeys. Capuchin monkeys are omnivores and consume a wide variety of foods, including unpleasant-tasting, potentially toxic items, which they need to learn how to process. We describe the processing of stick grasshoppers (Stiphra sp.) by wild capuchin monkeys (Sapajus libidinosus) that live in Serra da Capivara National Park, Brazil, and compare how individuals of different age classes handle these potentially toxic food items. S. libidinosus predominantly avoided consuming the digestive tract, which contains toxic compounds, when feeding on stick grasshoppers. Immatures took longer than adults to process the stick grasshoppers, indicating that capuchins need to learn how to process the toxic digestive tract of these prey to avoid consuming it.","PeriodicalId":20468,"journal":{"name":"Primates","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11219405/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141096953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Removing snares is an effective conservation intervention: a case study involving chimpanzees. 清除陷阱是一种有效的保护干预措施：一项涉及黑猩猩的案例研究。

IF 1.3 4区生物学

Primates Pub Date : 2024-07-01 Epub Date: 2024-05-24 DOI: 10.1007/s10329-024-01139-3

John C Mitani, Samuel Angedakin, Herbert Kasozi, Carolyn Rowney, Lauren Sarringhaus, James Tibisimwa, David P Watts, Kevin E Langergraber

引用次数: 0

Comparative analysis of intragroup intermale relationships: a study of wild bonobos (Pan paniscus) in Wamba, Democratic Republic of Congo and chimpanzees (Pan troglodytes) in Kalinzu Forest Reserve, Uganda. 群内雌雄关系比较分析：对刚果民主共和国万巴野生倭黑猩猩（Pan paniscus）和乌干达卡林祖森林保护区黑猩猩（Pan troglodytes）的研究。

IF 1.3 4区生物学

Primates Pub Date : 2024-07-01 Epub Date: 2024-05-31 DOI: 10.1007/s10329-024-01134-8

Shohei Shibata, Takeshi Furuichi

{"title":"Comparative analysis of intragroup intermale relationships: a study of wild bonobos (Pan paniscus) in Wamba, Democratic Republic of Congo and chimpanzees (Pan troglodytes) in Kalinzu Forest Reserve, Uganda.","authors":"Shohei Shibata, Takeshi Furuichi","doi":"10.1007/s10329-024-01134-8","DOIUrl":"10.1007/s10329-024-01134-8","url":null,"abstract":"Although chimpanzees (Pan troglodytes) and bonobos (Pan paniscus) share a multi-male/multi-female societal organization and form male-philopatric groups, disparities in terms of male aggression and stability of temporary parties are thought to exist among them. However, existing research in bonobos has mainly focused on the high social status, prolonged receptivity, and characteristic sexual behaviors of females, leaving the behaviors of males understudied. Moreover, prior comparative studies on Pan suffer from methodological inconsistencies. This study addresses these gaps by employing a uniform observation method to explore party attendance and aggressive interactions among male bonobos in Wamba and male chimpanzees in Kalinzu. Unlike male chimpanzees, which exhibit dispersion in the absence of receptive females in the group, male bonobos showed a lesser degree of such dispersion. Although the overall frequency of aggressive interactions per observation unit did not significantly differ between the two species, the nature of these interactions varied. Notably, severe aggressive behaviors such as physical confrontations among adult males were absent in bonobos, with most aggression occurring between the sons of the two highest-ranking females. Additionally, in bonobos, females actively engaged in polyadic aggressive behavior as aggressors, while all instances of coalitionary aggression in chimpanzees originated from male aggressors. These findings underscore the substantial impact of female behaviors on the observed distinctions in male aggressive interactions between the two species.","PeriodicalId":20468,"journal":{"name":"Primates","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141180570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Death of a one-armed blackback male due to severe injuries in a group of wild western lowland gorillas (Gorilla gorilla gorilla) in Moukalaba-Doudou National Park, Gabon. 加蓬 Moukalaba-Doudou 国家公园的一群野生西部低地大猩猩（大猩猩 gorilla gorilla）中，一只独臂黑背雄性大猩猩因严重受伤而死亡。

IF 1.3 4区生物学

Primates Pub Date : 2024-07-01 Epub Date: 2024-05-29 DOI: 10.1007/s10329-024-01138-4

Masaya Tamura, Ebang Ella Ghislain Wilfried, Etienne François Akomo-Okoue

{"title":"Death of a one-armed blackback male due to severe injuries in a group of wild western lowland gorillas (Gorilla gorilla gorilla) in Moukalaba-Doudou National Park, Gabon.","authors":"Masaya Tamura, Ebang Ella Ghislain Wilfried, Etienne François Akomo-Okoue","doi":"10.1007/s10329-024-01138-4","DOIUrl":"10.1007/s10329-024-01138-4","url":null,"abstract":"The survival of limb-disabled primates in the wild has been widely reported. Nevertheless, their ultimate fate is little documented. It is important to understand the influence of limb disability on primate survival from a conservation perspective, as many African great apes suffer from limb injuries caused by entrapment in snares. Here, we report the death of a one-armed blackback male in a large one-male group of wild western lowland gorillas. The subject was a blackback male (14 years old) named Dodo, who lost his right forearm in August 2008. On 8 December 2019, Dodo was found to have suffered serious bleeding injuries to the front of his body, including large lacerations and puncture wounds. On 14 December his corpse was found in the forest. We provide evidence to suggest that his injuries were more likely caused by intraspecific aggression, though a predatory attack by a leopard could not be completely ruled out. His one-armed disability could have made him more vulnerable to attack from either a gorilla or leopard and led to his fatal injury. This report shows that a gorilla who had previously overcome a disability in one arm in childhood may die prematurely, in part, owing to this disability in young adulthood.","PeriodicalId":20468,"journal":{"name":"Primates","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141161669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential effects of brown howler monkey extinction on dispersal services in fragmented forests void of large dispersers. 褐猴灭绝对没有大型散播者的破碎森林中散播服务的潜在影响。

IF 1.3 4区生物学

Primates Pub Date : 2024-07-01 Epub Date: 2024-04-02 DOI: 10.1007/s10329-024-01128-6

Thays Natani, Laurence Culot, Rogério Grassetto Teixeira da Cunha

{"title":"Potential effects of brown howler monkey extinction on dispersal services in fragmented forests void of large dispersers.","authors":"Thays Natani, Laurence Culot, Rogério Grassetto Teixeira da Cunha","doi":"10.1007/s10329-024-01128-6","DOIUrl":"10.1007/s10329-024-01128-6","url":null,"abstract":"The dispersal of large-seeded species strongly depends on medium-sized and large frugivores, such as primates, which are highly susceptible to population declines. In the Atlantic Forest, brown howler monkeys Alouatta guariba are medium-sized folivorous-frugivorous species that are likely to occur in small to large fragments where the largest frugivores are extinct. However, populations of this primate have been suffering from forest fragmentation, habitat loss, hunting, and the direct and indirect effects of yellow fever outbreaks, which increase the importance of understanding their role as seed dispersers and the impacts of their potential loss. The richness and abundance of large-seeded species might also be reduced in smaller fragments, which could directly affect the magnitude of the potential impact of disperser extinction on plant recruitment. Here, we tested the following mutually exclusive predictions on the effect of fragment size on plant richness and relative density of medium- and large-seeded species consumed by brown howler monkeys in fragments smaller than 1500 ha: the number and the relative density of plant species potentially affected by the local extinction of these monkeys will be (1) directly related to forest fragment size, or (2) not related to forest fragment size. Plant richness and the relative density of large- and medium-sized seed species consumed by brown howler monkeys did not vary with fragment size, corroborating our second prediction. Thus, the local extinction of brown howler monkeys would have a similar potentially negative impact on plant regeneration for the range of tested fragment sizes. We discuss the limitations of our results and suggest other lines of enquiry for the refinement of our conclusions.","PeriodicalId":20468,"journal":{"name":"Primates","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140336651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Social network dynamics, infant loss, and gut microbiota composition in female Colobus vellerosus during time periods with alpha male challenges. 雌性疣猴在接受雄性首领挑战期间的社会网络动态、婴儿丢失和肠道微生物群组成。

IF 1.3 4区生物学

Primates Pub Date : 2024-07-01 Epub Date: 2024-05-12 DOI: 10.1007/s10329-024-01132-w

Shelby Samartino, Diana Christie, Anna Penna, Pascale Sicotte, Nelson Ting, Eva Wikberg

{"title":"Social network dynamics, infant loss, and gut microbiota composition in female Colobus vellerosus during time periods with alpha male challenges.","authors":"Shelby Samartino, Diana Christie, Anna Penna, Pascale Sicotte, Nelson Ting, Eva Wikberg","doi":"10.1007/s10329-024-01132-w","DOIUrl":"10.1007/s10329-024-01132-w","url":null,"abstract":"The gut microbiota of group-living animals is strongly influenced by their social interactions, but it is unclear how it responds to social instability. We investigated whether social instability associated with the arrival of new males and challenges to the alpha male position could explain differences in the gut microbiota in adult female Colobus vellerosus at Boabeng-Fiema, Ghana. First, we used a data set collected during May-August 2007 and May 2008-2009 that consisted of (i) 50 fecal samples from adult females in eight social groups for V4 16S rRNA sequencing to determine gut microbiota composition, and (ii) demographic and behavioral data ad libitum to determine male immigration, challenges to the alpha male position, and infant births and deaths. Sørensen and Bray-Curtis beta diversity indices (i.e., between-sample microbiota variation) were predicted by year, alpha male stability, group identity, and age. Next, we used a more detailed behavioral data set collected during focal observations of adult females in one group with a prolonged alpha male takeover and three cases of infant loss, to create 12-month versus 3-month 1-m proximity networks that preceded and overlapped the gut microbiome sampling period in that group. The long versus short-term networks were not correlated, suggesting temporal variation in proximity networks. In this group, beta diversity among the five adult females was predicted by similarity in infant loss status and short-term (rather than yearly) 1-m proximity ties. Although the mechanism driving this association needs to be further investigated in future studies, our findings indicate that alpha male takeovers are associated with gut microbiota variation and highlight the importance of taking demographic and social network dynamics into account.","PeriodicalId":20468,"journal":{"name":"Primates","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140909103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Owl Monkeys: Biology, Adaptive Radiation, and Behavioral Ecology of the Only Nocturnal Primate in the Americas, edited by Eduardo Fernandez-Duque 猫头鹰猴：美洲唯一夜行灵长类的生物学、适应性辐射和行为生态学》，Eduardo Fernandez-Duque 编辑

IF 1.7 4区生物学

Primates Pub Date : 2024-05-21 DOI: 10.1007/s10329-024-01135-7

Eckhard W. Heymann

引用次数: 0