Primate Biology最新文献

The effect of reward value on the performance of long-tailed macaques (Macaca fascicularis) in a delay-of-gratification exchange task 奖励价值对长尾猕猴在延迟满足交换任务中表现的影响

Primate Biology Pub Date : 2024-07-26 DOI: 10.5194/pb-11-19-2024

Judit J. Stolla, Stefanie Keupp

{"title":"The effect of reward value on the performance of long-tailed macaques (Macaca fascicularis) in a delay-of-gratification exchange task","authors":"Judit J. Stolla, Stefanie Keupp","doi":"10.5194/pb-11-19-2024","DOIUrl":"https://doi.org/10.5194/pb-11-19-2024","url":null,"abstract":"Abstract. In the context of a global research initiative called ManyPrimates, scientists from around the world collaborated to collect data aimed at comparing the ability of various primate species to delay gratification. Our contribution to this project involved collecting data from long-tailed macaques (Macaca fascicularis). Our findings indicated that these macaques rarely opted to exchange a given food item for a larger food reward at a later time. However, we suspected that the experimental protocol might not accurately capture the macaques' actual capacity to delay gratification. Specifically, possessing a highly desirable food item might discourage the monkeys' participation in food exchange and delay-of-gratification tasks. To explore whether this potential mental distraction was affecting their performance, we conducted experiments on six long-tailed macaques under two different conditions. In these conditions, we examined how the value of the exchange item influenced the frequency of exchanges. In one condition, subjects received a high-value food item, while in the other, they received a low-value food item, both of which could be exchanged for three high-value food items. When we reduced the value of the exchange item, the long-tailed macaques displayed significantly improved abilities to delay gratification within the exchange task. These findings strongly suggest that the possession of a high-value item significantly contributed to the low performance of these monkeys in the original delay-of-gratification exchange protocol and raise the question of which performance reflects the monkeys' underlying delay-of-gratification competence more adequately.\u0000","PeriodicalId":37245,"journal":{"name":"Primate Biology","volume":"26 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141800799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Male-biased dominance in greater bamboo lemurs (Prolemur simus) 大竹狐猴的雄性优势

Primate Biology Pub Date : 2024-03-28 DOI: 10.5194/pb-11-13-2024

Lilith Sidler, Johanna Rode-White, Peter M. Kappeler

引用次数: 0

A dataset of new occurrence records of primates from the arc of deforestation, Brazil. 巴西森林砍伐弧地区灵长类动物新出现记录数据集。

Primate Biology Pub Date : 2024-01-22 eCollection Date: 2024-01-01 DOI: 10.5194/pb-11-1-2024

Rodrigo Costa-Araújo, Gustavo Rodrigues Canale, Fabiano Rodrigues de Melo, Raimundo Rodrigues da Silva, Ivan Batista da Silva, Raony Macedo de Alencar, Luciano Ferreira da Silva, Leandro Jerusalinsky, Renata Bocorny de Azevedo, Eduardo Marques Santos Júnior, Italo Mourthé, Emil José Hernández Ruz, José de Sousa E Silva-Jr, Christian Roos, Izeni Pires Farias, Tomas Hrbek

{"title":"A dataset of new occurrence records of primates from the arc of deforestation, Brazil.","authors":"Rodrigo Costa-Araújo, Gustavo Rodrigues Canale, Fabiano Rodrigues de Melo, Raimundo Rodrigues da Silva, Ivan Batista da Silva, Raony Macedo de Alencar, Luciano Ferreira da Silva, Leandro Jerusalinsky, Renata Bocorny de Azevedo, Eduardo Marques Santos Júnior, Italo Mourthé, Emil José Hernández Ruz, José de Sousa E Silva-Jr, Christian Roos, Izeni Pires Farias, Tomas Hrbek","doi":"10.5194/pb-11-1-2024","DOIUrl":"10.5194/pb-11-1-2024","url":null,"abstract":"The so-called arc of deforestation is a major agricultural and industrial frontier in southern Amazonia and northern Cerrado of Brazil. As arboreal mammals, the primates in this region are therefore threatened by forest loss and fragmentation. At the same time, knowledge about the taxonomic diversity and distribution ranges of these taxa is incomplete, which might hamper efficient conservation measurements. New species have been recently discovered in this region, and their ranges remain imprecise because only a few occurrence records are available for each species. Here we present 192 new records of 22 species and subspecies of Alouatta, Aotus, Ateles, Cebus, Chiropotes, Lagothrix, Leontocebus, Pithecia, Plecturocebus, Saimiri, and Sapajus, collected in 56 different localities during 10 field expeditions across the arc of deforestation between 2015 and 2018. Based on these new records, we extend the ranges of Alouatta puruensis, Ateles chamek, and Saimiri collinsi; identify potential hybridization zones between A. puruensis and A. discolor, and between At. chamek and At. marginatus; redefine the range of Plecturocebus moloch; and clarify the ranges of P. baptista and P. hoffmannsi. Moreover, these results and the dataset are valuable for further research on, for example, species distribution and habitat use modeling, for assessing species extinction risks, and for supporting efforts for the conservation of species increasingly threatened on a global deforestation frontier.","PeriodicalId":37245,"journal":{"name":"Primate Biology","volume":"11 1","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11262026/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141753006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Djaffa Mountains guereza (Colobus guereza gallarum) abundance in forests of the Ahmar Mountains, Ethiopia 贾法山葛雷萨(疣猴葛雷萨gallarum)在埃塞俄比亚阿赫玛山脉的森林中丰富

Primate Biology Pub Date : 2023-10-20 DOI: 10.5194/pb-10-13-2023

Chala Adugna Kufa, Afework Bekele, Anagaw Atickem, Dietmar Zinner

{"title":"Djaffa Mountains guereza (Colobus guereza gallarum) abundance in forests of the Ahmar Mountains, Ethiopia","authors":"Chala Adugna Kufa, Afework Bekele, Anagaw Atickem, Dietmar Zinner","doi":"10.5194/pb-10-13-2023","DOIUrl":"https://doi.org/10.5194/pb-10-13-2023","url":null,"abstract":"Abstract. The size and density of a population are essential parameters in primate ecology and conservation. Such information, however, is still scarce for many forest primate species. The Djaffa Mountains guereza (Colobus guereza gallarum) is an endemic Ethiopian taxon for which data about its distribution and population size are missing. Therefore, we aimed to estimate the abundance and population size of the Djaffa Mountains guereza in four forests in the Ahmar Mountains southeast of the Ethiopian Rift Valley. We conducted line-transect surveys in the forests. Within an area of 183 km2, we sampled 19 transects covering a distance of 75.9 km. We encountered 73 guereza clusters which most likely represent social groups. Since the detection distances and cluster sizes did not differ among the four forests, we applied a conventional distance sampling (CDS) model and estimated a population density of 20.6 clusters per square kilometer, i.e., 109.6 individuals per square kilometer or 20 061 individuals within the complete study area. This abundance is relatively high compared to other C. guereza taxa. However, given that the habitat and population of C. g. gallarum are already highly fragmented, further monitoring of the population and exploration of the possibilities of reconnecting its habitat should be priorities for the conservation of this taxon.","PeriodicalId":37245,"journal":{"name":"Primate Biology","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135617526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Notes on the distribution and habitat use of marmosets (Callitrichidae: Mico) from south-central Amazonia. 亚马逊中南部狨猴的分布和生境利用。

Primate Biology Pub Date : 2023-01-01 DOI: 10.5194/pb-10-7-2023

Rodrigo Costa-Araújo, Giovanna Bergamasco, Christian Roos, Izeni Pires Farias, Tomas Hrbek

{"title":"Notes on the distribution and habitat use of marmosets (Callitrichidae: Mico) from south-central Amazonia.","authors":"Rodrigo Costa-Araújo, Giovanna Bergamasco, Christian Roos, Izeni Pires Farias, Tomas Hrbek","doi":"10.5194/pb-10-7-2023","DOIUrl":"https://doi.org/10.5194/pb-10-7-2023","url":null,"abstract":"Currently, 15 species of Amazon marmosets (genus Mico) are known to science. The Amazon marmosets occur primarily in southern Brazilian Amazonia, the arc of deforestation, and are among the least studied primates of the neotropics. This is particularly the case for M. acariensis and M. chrysoleucos, both endemic to the Aripuanã-Sucundurí interfluve, south-central Amazonia. Mico acariensis was not studied beyond the species description, and the only information currently available is the pelage colouration of the holotype, inferred coordinates of the type locality, and a field report with two additional localities of occurrence. Regarding M. chrysoleucos, in addition to the species description, there are taxonomic reviews, the report of a second occurrence record, and a study on the species range. We provide here new occurrence records that extend the distribution of M. chrysoleucos; provide new records for and update the distribution of M. acariensis; and propose the existence of a hybrid zone in the Aripuanã-Sucundurí interfluve, i.e. around the known distribution boundaries of M. acariensis, M. chrysoleucos, and M. melanurus, and we also discuss habitat use patterns of Amazon marmosets.","PeriodicalId":37245,"journal":{"name":"Primate Biology","volume":"10 2","pages":"7-11"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10407307/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10345244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Population dynamics of the Manyara monkey (Cercopithecus mitis manyaraensis) and vervet monkey (Chlorocebus pygerythrus) in Lake Manyara National Park, Tanzania. 坦桑尼亚马尼亚拉湖国家公园中马尼亚拉猴（Cercopithecus mitis manyaraensis）和绒猴（Chlorocebus pygerythrus）的种群动态。

Primate Biology Pub Date : 2022-10-05 eCollection Date: 2022-01-01 DOI: 10.5194/pb-9-33-2022

Christian Kiffner, John Kioko, Thomas M Butynski, Yvonne A de Jong, Dietmar Zinner

{"title":"Population dynamics of the Manyara monkey (Cercopithecus mitis manyaraensis) and vervet monkey (Chlorocebus pygerythrus) in Lake Manyara National Park, Tanzania.","authors":"Christian Kiffner, John Kioko, Thomas M Butynski, Yvonne A de Jong, Dietmar Zinner","doi":"10.5194/pb-9-33-2022","DOIUrl":"10.5194/pb-9-33-2022","url":null,"abstract":"Estimating population densities and their trends over time is essential for understanding primate ecology and for guiding conservation efforts. From 2011 through to 2019, we counted two guenon species during seasonal road transect surveys in Lake Manyara National Park: the Tanzania-endemic Manyara monkey Cercopithecus mitis manyaraensis (International Union for Conservation of Nature and Natural Resources, IUCN, Red List category of \"endangered\") and the vervet monkey Chlorocebus pygerythrus (Red List category of \"least concern\"). To account for imperfect detectability, we analysed the data in a line distance sampling framework, fitted species-specific detection functions, and subsequently estimated seasonal densities. To test for seasonal differences and yearly trends in the species-specific density estimates, we fitted generalized additive models. Seasonal point density estimates fluctuated considerably during the 9 years (2011-2019) of our study, ranging from 3 to 29 individuals km <math><msup><mi></mi> <mrow><mo>-</mo> <mn>2</mn></mrow> </msup> </math> for Manyara monkeys and from 19 to 83 individuals km <math><msup><mi></mi> <mrow><mo>-</mo> <mn>2</mn></mrow> </msup> </math> for vervet monkeys. Densities of both taxa did not differ seasonally, and we did not detect marked directional population trends. Our study illustrates the utility and limitations of line distance sampling for long-term primate monitoring. Beyond informing primate ecology and management, our results highlight the conservation importance of Lake Manyara National Park for primate conservation.","PeriodicalId":37245,"journal":{"name":"Primate Biology","volume":" ","pages":"33-43"},"PeriodicalIF":0.0,"publicationDate":"2022-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9562685/pdf/pb-9-33.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40560335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Report of an attack on a howler monkey Alouatta sara by a group of collared peccaries Dicotyles tajacu at a mammal clay lick in Madre de Dios, Peru. 在秘鲁马德雷·德迪奥斯的哺乳动物粘土舔，一群带项圈的双子代塔贾库袭击了一只吼猴Alouatta sara。

Primate Biology Pub Date : 2022-09-01 eCollection Date: 2022-01-01 DOI: 10.5194/pb-9-29-2022

Raul Bello, Eckhard Heymann, Sam Pottie

{"title":"Report of an attack on a howler monkey Alouatta sara by a group of collared peccaries Dicotyles tajacu at a mammal clay lick in Madre de Dios, Peru.","authors":"Raul Bello, Eckhard Heymann, Sam Pottie","doi":"10.5194/pb-9-29-2022","DOIUrl":"https://doi.org/10.5194/pb-9-29-2022","url":null,"abstract":"Abstract Howler monkeys Alouatta are almost exclusively arboreal. They will, however, occasionally descend to the forest floor to conduct geophagy at clay licks if these are present within their home range. They do this to incorporate certain minerals into their diet and/or for detoxification purposes. Clay licks are risky areas however, especially for arboreal mammals, as visiting them requires the monkeys to leave the safety of the trees. This has been confirmed by observed predation attempts on howler monkeys by large felines at clay licks. We report an additional risk for howler monkeys descending to the forest floor that has not previously been considered, namely potential attacks by collared peccaries Dicotyles tajacu. Camera traps were placed at three different clay licks in the Taricaya Ecological Reserve, located in the southeastern Peruvian Amazon, to monitor the fauna within the reserve. On 4 June 2017, the camera traps registered a lethal attack on a howler monkey by a group of collared peccaries at one of the clay licks.","PeriodicalId":37245,"journal":{"name":"Primate Biology","volume":" ","pages":"29-31"},"PeriodicalIF":0.0,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9562695/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40560336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

The use of alfaxalone for short-term anesthesia can confound serum progesterone measurements in the common marmoset: a case report. 使用阿法沙龙短期麻醉可混淆血清黄体酮测量在普通狨猴:一个案例报告。

Primate Biology Pub Date : 2022-07-27 eCollection Date: 2022-01-01 DOI: 10.5194/pb-9-23-2022

Maria Daskalaki, Charis Drummer, Rüdiger Behr, Michael Heistermann

{"title":"The use of alfaxalone for short-term anesthesia can confound serum progesterone measurements in the common marmoset: a case report.","authors":"Maria Daskalaki, Charis Drummer, Rüdiger Behr, Michael Heistermann","doi":"10.5194/pb-9-23-2022","DOIUrl":"https://doi.org/10.5194/pb-9-23-2022","url":null,"abstract":"Alfaxan® (alfaxalone) is a steroid general anesthetic widely used in veterinary medicine for induction and maintenance of anesthesia in several species. While the use of alfaxalone in veterinary practice has several benefits compared to the use of other anesthetic agents, the fact that it is derived from progesterone may confound the measurement of the latter in the blood of animals under alfaxalone treatment. In the present case study, we report the measurement of serum progesterone in an individual common marmoset (Callithrix jacchus) during five ovarian cycles in which luteolysis was induced by PGF2 <math><mi>α</mi></math> . Blood samples were usually taken from the awake animal with the exception of the fifth cycle in which the sample was collected under alfaxalone anesthesia in connection with a tooth extraction. In contrast to the previous four cycles in which luteolysis resulted in the expected marked decrease in progesterone concentrations, the - apparent - progesterone level in the cycle under alfaxalone treatment remained unexpectedly high. Cross-reactivity of the non-specific antibody used in the progesterone assay with alfaxalone most likely explains this finding.","PeriodicalId":37245,"journal":{"name":"Primate Biology","volume":"9 2","pages":"23-28"},"PeriodicalIF":0.0,"publicationDate":"2022-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9399913/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"33443892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Southern range extension of Spix's saddle-back tamarin, Leontocebus fuscicollis fuscicollis, in Peru. 秘鲁斯匹克斯的鞍背绢毛猴，Leontocebus fuscicollis fuscicollis。

Primate Biology Pub Date : 2022-07-22 eCollection Date: 2022-01-01 DOI: 10.5194/pb-9-19-2022

Elvis Charpentier, Gabriel García-Mendoza, José Cruz-Guimaraes, Rolando Aquino, Eckhard W Heymann

引用次数: 0

Mito-phylogenetic relationship of the new subspecies of gentle monkey Cercopithecus mitis manyaraensis, Butynski & De Jong, 2020. 猕猴毛猴新亚种的进化关系，丁恩斯基和德钟，2020。

Primate Biology Pub Date : 2022-06-29 eCollection Date: 2022-01-01 DOI: 10.5194/pb-9-11-2022

Dietmar Zinner, Sascha Knauf, Idrissa S Chuma, Thomas M Butynski, Yvonne A De Jong, Julius D Keyyu, Rehema Kaitila, Christian Roos

{"title":"Mito-phylogenetic relationship of the new subspecies of gentle monkey Cercopithecus mitis manyaraensis, Butynski & De Jong, 2020.","authors":"Dietmar Zinner, Sascha Knauf, Idrissa S Chuma, Thomas M Butynski, Yvonne A De Jong, Julius D Keyyu, Rehema Kaitila, Christian Roos","doi":"10.5194/pb-9-11-2022","DOIUrl":"https://doi.org/10.5194/pb-9-11-2022","url":null,"abstract":"In 2020, a new subspecies was described in the Cercopithecus mitis complex, the Manyara monkey C. m. manyaraensis, Butynski & De Jong, 2020. The internal taxonomy of this species complex is still debated, and the phylogenetic relationships among the taxa are unclear. Here we provide the first mitochondrial sequence data for C. m. manyaraensis to determine its position within the mitochondrial phylogeny of C. mitis. This subspecies clusters within the youngest (internal divergences between 1.01 and 0.42 Ma) of three main taxonomic clades of C. mitis. Its sister lineages are C. m. boutourlinii (Ethiopia), C. m. albotorquatus (Kenya and Somalia), C. m. albogularis (Kenya and Tanzania), and C. m. monoides (Tanzania and Mozambique). In general, the phylogenetic tree of C. mitis based on mitochondrial sequence data indicates several paraphyletic relationships within the C. mitis complex. As in other African cercopithecines (e.g. Papio and Chlorocebus), these data are suitable for reconstructing historic biogeographical patterns, but they are only of limited value for delimitating taxa.","PeriodicalId":37245,"journal":{"name":"Primate Biology","volume":" ","pages":"11-18"},"PeriodicalIF":0.0,"publicationDate":"2022-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9285482/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40521512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1