| delayed hypersensitivity test with paracoccidioidin in captive latin american wild mammals. | the aim of this investigation was to study epidemiological aspects of paracoccidioidomycosis, the main endemic systemic mycosis in brazil. this study was carried out using the paracoccidioidin delayed hypersensitivity test in 96 latin american wild mammals, including 49 arboreal animals (primates): 33 cebus apella (weeping-capuchin), 16 callithrix jacchus (marmoset); and 47 terrestrial animals (carnivora): 37 nasua nasua (coatimundi), and 10 felidae [panthera onca (jaguar), felis paradalis (ocel ... | 1995 | 7650577 |
| epidemiological study of sporotrichosis and histoplasmosis in captive latin american wild mammals, são paulo, brazil. | sporotrichosis and histoplasmosis are deep mycosis with a high incidence in human beings in brazil. in domestic animals histoplasmosis has been described only in dogs, but the occurrence of sporotrichosis among domestic animals in brazil has been described in dogs, cats, mules and asses. there is also a case of this disease reported in a chimpanzee (pan troglodites). the purpose of this research was to perform an epidomiological study of these mycoses using delayed hypersensitivity tests (histop ... | 1994 | 8028639 |
| preliminary observations of cebus nigrivittatus (primates: cebidae) on the venezuelan llanos. | | 1973 | 4204186 |
| seasonal or ecological differences in diet and molar microwear in cebus nigrivittatus. | dental microwear analyses have raised new hopes and questions for functional morphologists. one hope is that analyses will allow insights into subtle dietary differences of extinct species. one major question is whether seasonal and/or habitat differences in dental microwear are reliably detectable. the extensive collections of cebus nigrivittatus obtained by the smithsonian venezuelan project allowed us to examine seasonal and habitat differences in dental microwear. specimens were collected fr ... | 1989 | 2686463 |
| the karyotype and c-banding of cebus nigrivittatus from the coastal cordillera, venezuela. | | 2003 | 10050066 |
| response of frugivorous primates to changes in fruit supply in a northern amazonian forest. | few attempts have been made to understand how spatiotemporal changes in fruit supply influence frugivores in tropical forests. the marked spatiotemporal variation in fruit supply can affect frugivore abundance and distribution, but studies addressing the effects of this variation on primates are scarce. the present study aimed to investigate how the spatiotemporal distribution of fruits influences the local distribution of three frugivorous primates in the eastern part of the maracá ecological s ... | 2014 | 25296224 |
| incisor microwear and feeding behavior in alouatta seniculus and cebus olivaceus. | dental microwear features on the labial surfaces of maxillary central incisors of wild-shot museum specimens of cebus olivaceus (n = 11) and alouatta seniculus (n = 7) were examined at 200 × by polarized light microscopy. while wear scratch orientation patterns do not differ between the two samples, cebus has a significantly higher density of wear features, and displays scratches that extend further cervically. preliminary observations (n = 50 hours) on anterior tooth use in these species at hat ... | 1990 | 31964001 |
| [social behavior of the wedge-capped capuchin monkey cebus olivaceus (primates: cebidae) in three zoological exhibits of caracas, venezuela]. | captivity represents an extreme situation for primates, especially for those with large home ranges, and its effect on their behavior might be considerable. the wedge-capped capuchin monkey cebus olivaceus is the most common primate in venezuelan zoos. to estimate the effect of confinement on c. olivaceus behavior, we analyzed the social behavior of three groups that differed in captivity conditions, in zoological exhibits in caracas (caricuao, parque del este, el pinar). caricuao's group moved ... | 2008 | 19419060 |
| herpes encephalitis in cebus monkeys. | herpes virus which ordinarily produces in cebus olivaceus monkeys an acutely fatal encephalitis closely resembling in time, symptoms and pathology the acute, herpetic disease of rabbits may-in more resistant individual monkeys-lead to a more prolonged malady which, while unquestionably produced with herpes virus, simulates with considerable accuracy the human disease of acute encephalitis, in symptoms, in course and in pathological changes. | 1929 | 19869571 |
| evolutionary breakpoints are co-localized with fragile sites and intrachromosomal telomeric sequences in primates. | the concentration of evolutionary breakpoints in primate karyotypes in some particular regions or chromosome bands suggests that these chromosome regions are more prone to breakage. this is the first extensive comparative study which investigates a possible relationship of two genetic markers (intrachromosomal telomeric sequences [ttaggg]n, [itss] and fragile sites [fss]), which are implicated in the evolutionary process as well as in chromosome rearrangements. for this purpose, we have analyzed ... | 2005 | 15545736 |
| primate community of the tropical rain forests of saracá-taqüera national forest, pará, brazil. | brazil is the richest country in the world in terms of primate species and the amazonian rain forest is one of the richest biomes containing 15 (ca. 90%) of the neotropical primate genera. although considered key elements in conservation strategies, there is only anecdotal information on primates for several protected areas within the region. here we present new data on the community composition of the primates in the saracá-taqüera national forest (429,600 ha), an actively mined, bauxite rich a ... | 2009 | 19967179 |
| the relationship between locomotor behavior and limb morphology in brown (cebus apella) and weeper (cebus olivaceus) capuchins. | this study is a comparison of locomotor behavior and postcranial form in two species of capuchin monkey, the brown capuchin (cebus apella), and the weeper capuchin (cebus olivaceus). behavioral data from groups of wild c. apella and c. olivaceus in guyana were collected during the period of december 1999 through november 2000. postcranial variables including 40 measurements and three indices were taken from 43 adult and subadult specimens of c. apella and 14 adult and subadult specimens of c. ol ... | 2007 | 17253617 |
| spatial selectivity to manipulate portable objects in wedge-capped capuchins (cebus olivaceus). | we studied the manipulative activity of five wedge-capped capuchins (cebus olivaceus) confronted with different types of unfamiliar and portable objects: wooden blocks, plastic rings, spoons, and coconuts. combinatorial manipulations involving two portable objects of the same type were quite frequent. the lately introduced objects, whatever their kind, appeared as the most attractive. nevertheless, some objects remained very attractive throughout the overall experiment, especially the wooden blo ... | 2005 | 15549610 |
| preliminary observations on habitat utilization and diet in eight surinam monkeys. | the eight monkey species occurring in surinam were studied in the raleigh-vallen-voltzberg nature reserve along the coppename river. special emphasis was placed on determining how these eight species divide up available habitat and food resources within a 300-ha study area. cebus apella apella is probably the most adaptable of the surinam monkeys. it was found mainly in the understory and lower to middle parts of the canopy of all five forest types (high rain forest, low rain forest, mountain sa ... | 1981 | 6802728 |
| [brief note on a new trypanosoma which infects triatomas, found in a monkey in venezuela, the cebus nigrivittatus]. | | 1955 | 13241649 |
| spontaneous use of tools by wedge-capped capuchin monkeys (cebus olivaceus) | | 1999 | 10394068 |
| susceptibility of cebus nigrivittatus to leishmania infantum. | | 1986 | 3746568 |
| patterns of individual diet choice and efficiency of foraging in wedge-capped capuchin monkeys (cebus olivaceus). | capuchin monkeys (cebus olivaceus) exhibit extensive intragroup variability in foraging and diet. to consider how age, sex, and individual identity contribute to this variability, the authors examined foraging and diet in 18 wedge-capped capuchin monkeys in 1 social group in the wild. age-sex classes did not differ in the time spent ingesting food, the reliance on plant foods, the foraging actions used or substrates exploited, or in the efficiency of exploiting animal foods. they did differ, how ... | 1995 | 7497693 |
| infanticide in wedge-capped capuchin monkeys, cebus olivaceus. | three cases of infanticide are reported from a well-studied population of wedge-capped capuchin monkeys, cebus olivaceus, located in the venezuelan llanos. for each case, we examined the social context and the consequences to the reproductive success of the infanticidal male. in 1 case, the male probably killed his own son. in 2 cases, the male killed an unrelated animal. in all 3 cases, the female conceived in the following breeding season, but in only 1 case did the infanticidal male possibly ... | 1990 | 2391046 |
| molar microwear and diet in the genus cebus. | recent analyses have documented differences in dental microwear between primate species with different diets, especially between primate hard-object feeders and primate leaf-eaters. thus far, these microwear differences have only been documented for primates with vastly different foraging strategies and geographic distributions. to see if similar differences could be documented for closely related species, dental replicas from cebus apella, cebus nigrivittatus, and cebus capucinus were examined ... | 1985 | 3993762 |
| molecular phylogenetics and phylogeography of the white-fronted capuchin (cebus albifrons; cebidae, primates) by means of mtcoii gene sequences. | a total of 696 base pairs (bp) of the mitochondrial coii gene were sequenced from 118 individuals of cebus albifrons (plus an individual of cebus olivaceus) sampled from diverse geographical areas of colombia, peru, ecuador and brazil. these animals represented all of the c. albifrons's taxa described by hershkovitz (1949) in colombia and peru (10 out of 13 subspecies are described by this author). the sequences analyzed demonstrate the existence of three well defined groups in northern colombia ... | 2010 | 20854917 |
| behavioural repertoires and time budgets of semi-free-ranging and captive groups of wedge-capped capuchin monkeys, cebus olivaceus, in zoo exhibits in venezuela. | the behavioural repertoires and time budgets of 2 captive groups and 1 semi-free-ranging group of cebus olivaceus were determined with the aim to assess the impact of the zoo environment on behaviour. the repertoires were qualitatively similar between groups and to those reported for wild troops, but the captive groups showed self-directed and stereotyped behaviours not reported in the wild. the differences in repertoires between groups were easily associated with the opportunity to interact dir ... | 2015 | 25998483 |
| the effect of dietary adaption on cranial morphological integration in capuchins (order primates, genus cebus). | a fundamental challenge of morphology is to identify the underlying evolutionary and developmental mechanisms leading to correlated phenotypic characters. patterns and magnitudes of morphological integration and their association with environmental variables are essential for understanding the evolution of complex phenotypes, yet the nature of the relevant selective pressures remains poorly understood. in this study, the adaptive significance of morphological integration was evaluated through th ... | 2012 | 23110039 |
| scent (apocrine) gland adenocarcinoma in a wedge-capped capuchin monkey (cebus olivaceus): histological and immunohistochemical features. | in humans, apocrine gland tumours encompass a heterogeneous group of uncommon neoplasms with varied and unpredictable biological behaviour. they can be slow-growing lesions, recur after excision, produce lymph node metastasis in up to 50% of cases or lead to tumour-related death. we document a malignant scent adenocarcinoma in a wedge-capped capuchin monkey (cebus olivaceus). immunohistochemical labelling revealed complete absence of myoepithelial cells, a finding usually considered a hallmark o ... | 2020 | 32958142 |
| isolation of madre de dios virus (orthobunyavirus; bunyaviridae), an oropouche virus species reassortant, from a monkey in venezuela. | oropouche virus (orov), genus orthobunyavirus, family bunyaviridae, is an important cause of human illness in tropical south america. herein, we report the isolation, complete genome sequence, genetic characterization, and phylogenetic analysis of an orov species reassortant, madre de dios virus (mddv), obtained from a sick monkey (cebus olivaceus schomburgk) collected in a forest near atapirire, a small rural village located in anzoategui state, venezuela. mddv is one of a growing number of nat ... | 2016 | 27215299 |
| parasitic nursing behavior in the wedge-capped capuchin monkey (cebus olivaceus). | juvenile and adult females in two wild groups of wedge-capped capuchin monkeys (cebus olivaceus) were observed nursing from other adult females. the context of the interactions varied with participants but always involved a higher-ranking female nursing from a lower-ranking female. this behavior appears to be an example of an exploitative interaction in which the suckling female benefits at the expense of the nursing female. | 1988 | 32079372 |