| habitat, density and group size of primates in a brazilian tropical forest. | habitats, population densities and group sizes of 5 primate species (callithrix flaviceps, callicebus personatus personatus, cebus apella nigritus, alouatta fusca clamitans, and brachyteles arachnoides) were estimated, using the method of repeated transect sampling, in an area of montane pluvial forest in eastern brazil (atlantic forest). a. fusca and c. apella had the highest densities in terms of groups and individuals per square kilometer, respectively, while b. arachnoides was least abundant ... | 1993 | 8206419 |
| sleeping site preferences in tufted capuchin monkeys (cebus apella nigritus). | the characteristics and availability of the sleeping sites used by a group of 27 tufted capuchin monkeys (cebus apella nigritus) were studied during 17 months at the iguazu national park, argentina. we tested different hypotheses regarding possible ultimate causes of sleeping-site selection. most sleeping sites were located in areas of tall, mature forest. of the 34 sleeping sites the monkeys used during 203 nights, five were more frequently used than the others (more than 20 times each, constit ... | 2000 | 10768350 |
| individual and seasonal variation in fecal testosterone and cortisol levels of wild male tufted capuchin monkeys, cebus apella nigritus. | this study tested the "challenge hypothesis" and rank-based predictions for temporal steroid production in male tufted capuchin monkeys, cebus apella. fecal samples (n = 209) collected from six wild males were analyzed for testosterone and cortisol concentration by enzyme immunoassay. the temporal pattern in male steroid production was compared to female sexual activity and rates of male aggression. the top-ranking adult male did not differ from other adult males in testosterone or cortisol conc ... | 2002 | 11971661 |
| social influences on the acquisition of sex-typical foraging patterns by juveniles in a group of wild tufted capuchin monkeys (cebus nigritus). | foraging traditions in primates are becoming the subject of increasing debate. recent evidence for such a phenomenon was recently provided for wild cebus capucinus [fragaszy & perry, 2003]. to better understand the bases of animal traditions, one should examine intrapopulation behavioral variability and the influence of social context on within-group transmission of specific foraging patterns. we studied the variability of foraging patterns across age and sex classes, and the proximity patterns ... | 2005 | 15834890 |
| male mating strategies and reproductive constraints in a group of wild tufted capuchin monkeys (cebus apella nigritus). | tufted capuchin monkeys (cebus apella) provide an extreme example of active female sexual solicitation of males. in spite of being targeted by females for sex, males may delay copulation for hours or days. data were collected on the sexual interactions in one wild capuchin group at the estação biológica de caratinga in brazil from september 1996 to august 1997. all successful conceptions during this year occurred in the dry season, yet sexual behavior was observed during 9 months of the year. th ... | 2005 | 16287110 |
| allele frequencies and genetic diversity in two groups of wild tufted capuchin monkeys (cebus apella nigritus) living in an urban forest fragment. | there have been numerous studies genetically characterizing old world primates using microsatellites. however, few studies have been made of new world species and none on free-ranging cebus apella, even though it is probably the most widely distributed species of monkey in the new world. the paucity of studies is due, in part, to the lack of polymorphisms described for this species. we studied two groups of wild tufted capuchins, cebus apella nigritus, which inhabit mata santa teresa, the ecolog ... | 2005 | 16475131 |
| experimental evidence for route integration and strategic planning in wild capuchin monkeys. | both in captivity and the wild, primates are found to travel mostly to the nearest available resource, but they may skip over the closest resource and travel to more distant resources, which are often found to be more productive. this study examines the tradeoff between distance and reward in the foraging choices of one group of wild capuchin monkeys (cebus apella nigritus) using feeding platforms in large-scale foraging experiments conducted over four years. three feeding sites were arrayed in ... | 2007 | 17464518 |
| allonursing in tufted capuchin monkeys (cebus nigritus): milk or pacifier? | allonursing, the behaviour of females nursing offspring that are not their own, is relatively frequent in capuchin monkeys. using focal-animal sampling and ad libitum observations we describe the pattern of allonursing in a wild group of tufted capuchins, cebus nigritus (4 cohorts, 22 infants), at iguazú national park, north-eastern argentina, and test several hypotheses on the adaptive value of allonursing. during 2,351 contact hours with the group (including 4,207 focal-animal samples totalizi ... | 2008 | 17893441 |
| experimental field study of hand preference in wild black-horned (cebus nigritus) and white-faced (cebus capucinus) capuchins: evidence for individual and species differences. | in this experimental field investigation, we compare the degree to which wild capuchins in brazil (cebus nigritus) and costa rica (cebus capucinus) exhibit individual- and population-level handedness during three visually-guided tasks. these tasks required reaching to remove a large leaf covering a hidden food reward, seizing the food reward, and manipulating a tool (pulling a wooden dowel) in order to obtain access to an embedded food reward. studies in some populations of captive capuchins ind ... | 2008 | 18183435 |
| infanticide in black capuchin monkeys (cebus apella nigritus) in iguazú national park, argentina. | we report here one observed and two potential cases of infanticide during a brief period of 1 month after a dominant male replacement in one group of black capuchin monkeys in iguazú national park, argentina. we also compile infant disappearances and demographic data in seven groups followed from 1-14 years. behavioral and molecular data showed that the probability that an infanticidal male would kill his own progeny is very low in this species. females that lost infants less than 6 months old h ... | 2008 | 18236410 |
| monkeys crying wolf? tufted capuchin monkeys use anti-predator calls to usurp resources from conspecifics. | the use of 'tactical deception' is argued to have been important in the cognitive evolution of the order primates, but systematic studies of active deception in wild non-human primates are scant. this study tests whether wild tufted capuchin monkeys (cebus apella nigritus) use alarm calls in a functionally deceptive manner to usurp food resources. if capuchins use alarm calls 'deceptively', it was predicted that false alarms should be: (i) given by subordinates more than by dominants, (ii) more ... | 2009 | 19493903 |
| cebus paraguayanus and cebus nigritus (primates, platyrrhini): a comparative genomic hybridization analysis. | primate genomes show a great karyological variability while the dna content variation is scarce. the biggest genome size occurs in cercophitecus cephus (catarrhini, cercophitecidae) with 5.26 pg whereas the smallest one is described for callicebus torquatus (platyrrhini, callithricidae) with 2.26 pg. over the last 20 years different authors have been studying the platyrrhini genomes on a chromosomal level. among them, cebus (cebidae) being considered the most ancestral and conserved karyotype in ... | 2010 | 20389045 |
| flexible and conservative features of social systems in tufted capuchin monkeys: comparing the socioecology of sapajus libidinosus and sapajus nigritus. | socioecological models assume that primates adapt their social behavior to ecological conditions, and predict that food availability and distribution, predation risk and risk of infanticide by males affect patterns of social organization, social structure and mating system of primates. however, adaptability and variation of social behavior may be constrained by conservative adaptations and by phylogenetic inertia. the comparative study of closely related species can help to identify the relative ... | 2011 | 21656840 |
| social relationships between adult females and the alpha male in wild tufted capuchin monkeys. | primates are notable for the widespread presence of long-term female-male associations which go beyond the mating context. however, little attention has been given to the factors that affect within-species variation in female-male relationships, especially among new world primates. although detailed accounts of heterosexual relationships in cebus species are scarce, a few studies have suggested the occurrence of strong associations between adult females and high-ranking males. this study explore ... | 2011 | 21698660 |
| a comparative study of the recombination pattern in three species of platyrrhini monkeys (primates). | homologous chromosomes exchange genetic information through recombination during meiotic synapsis, a process that increases genetic diversity and is fundamental to sexual reproduction. meiotic studies in mammalian species are scarce and mainly focused on human and mouse. here, the meiotic recombination events were determined in three species of platyrrhini monkeys (cebus libidinosus, cebus nigritus and alouatta caraya) by analysing the distribution of mlh1 foci at the stage of pachytene. moreove ... | 2011 | 21735165 |
| Capuchin monkeys (Cebus nigritus) use spatial and visual information during within-patch foraging. | Foraging in large-scale (navigation between patches), small-scale (choice of within-patch feeding sites), and micro-scale (close inspection of food items) space presents variable cognitive challenges. The reliability and usefulness of spatial memory and perceptual cues during food search in a forest environment vary among these spatial scales. This research applied an experimental field design to test the ability of a free-ranging group composed of eight black-horned capuchin monkeys, Cebus nigr ... | 2012 | 21969135 |
| serological detection of hepatitis a virus in free-ranging neotropical primates (sapajus spp., alouatta caraya) from the paraná river basin, brazil. | nonhuman primates are considered as the natural hosts of hepatitis a virus (hav), as well as other pathogens, and can serve as natural sentinels to investigate epizootics and endemic diseases that are of public health importance. during this study, blood samples were collected from 112 neotropical primates (ntps) (sapajus nigritus and s. cay, n = 75; alouatta caraya, n = 37) trap-captured at the paraná river basin, brazil, located between the states of paraná and mato grosso do sul. anti-hav igg ... | 2016 | 26910453 |
| exposure to rabies virus in a population of free-ranging capuchin monkeys (cebus apella nigritus) in a fragmented, environmentally protected area in southeastern brazil. | the aim of this study is to assess the frequency of rabies antibodies in free-ranging capuchin monkeys (cebus apella nigritus) in a fragmented, environmentally protected, rural area of southeastern brazil. thirty-six free-ranging monkeys were tested by the rapid fluorescent focus inhibition test for detection of antibodies against rabies virus. four individuals (11.11 %) had neutralizing antibody titers ≥ 0.25 iu/ml, demonstrating rabies virus exposure. | 2012 | 22430558 |
| serological evidence for saint louis encephalitis virus in free-ranging new world monkeys and horses within the upper paraná river basin region, southern brazil. | saint louis encephalitis virus (slev) primarily occurs in the americas and produces disease predominantly in humans. this study investigated the serological presence of slev in nonhuman primates and horses from southern brazil. | 2014 | 25075477 |
| chromosomal localization of the telomeric (ttaggg)n sequence in eight species of new world primates (neotropical primates, platyrrhini). | chromosomal localization of the telomeric sequence (ttaggg)(n) in eight new world primates (platyrrhini) (alouatta caraya, alouatta palliata, alouatta guariba clamitans, aotus azarae, ateles chamek, cebus nigritus, cebus paraguayanus, and saimiri boliviensis) using fluorescence in situ hybridization (fish) with a peptide nucleic acid (pna) pantelomeric probe and their possible relationship with the c-banding pattern were analyzed. fish showed telomeric signals only at the terminal regions of chr ... | 2007 | 18253032 |
| high consumption of primates by pumas and ocelots in a remnant of the brazilian atlantic forest. | we studied the diet of the ocelot and puma during the years 2007 and 2008 at the feliciano miguel abdala reserve, in minas gerais, south-eastern brazil. we collected 49 faecal samples (scats) from cats, and identified the species of cat from 23 of them by the analysis of the microstructure patterns of hairs found in their faeces: 17 scats of the puma (puma concolor) and six of the ocelot (leopardus pardalis). in the puma scats, we identified three species of primates (brachyteles hypoxanthus, al ... | 2014 | 25296212 |
| individual participation in intergroup contests is mediated by numerical assessment strategies in black howler and tufted capuchin monkeys. | asymmetries in resource-holding potential between opposing groups frequently determine outcomes of intergroup contests. since both numerical superiority and high intergroup dominance rank may confer competitive advantages, group members should benefit from assessing the relative strength of rivals prior to engaging in defensive displays. however, differences in individual assessment may emerge when cost-benefit trade-offs differ among group members. we examine the influence of numerical superior ... | 2015 | 26503680 |
| patch size, functional isolation, visibility and matrix permeability influences neotropical primate occurrence within highly fragmented landscapes. | forest fragmentation and habitat loss are among the major current extinction causes. remaining fragments are mostly small, isolated and showing poor quality. being primarily arboreal, neotropical primates are generally sensitive to fragmentation effects. furthermore, primates are involved in complex ecological process. thus, landscape changes that negatively interfere with primate population dynamic affect the structure, composition, and ultimately the viability of the whole community. we evalua ... | 2015 | 25658108 |
| 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 |
| experimental field study of problem-solving using tools in free-ranging capuchins (sapajus nigritus, formerly cebus nigritus). | some populations of capuchins are reported to use tools to solve foraging problems in the wild. in most cases, this involves the act of pounding and digging. the use of probing tools by wild capuchins is considerably less common. here we report on the results of an experimental field study conducted in southern brazil designed to examine the ability of wild black-horned capuchins (sapajus nigritus) to use a wooden dowel as a lever or a probe to obtain an embedded food reward. a group of eight ca ... | 2012 | 21538454 |
| attractiveness of native mammal's feces of different trophic guilds to dung beetles (coleoptera: scarabaeinae). | mammal feces are the primary food and nesting resource for the majority of dung beetle species, and larval development depends on the quantity and quality of that resource. physiological necessities, competitive interactions, and resource sharing are common and suggest that dung beetles may show preferences for feces of greater nutritional quality, which may in turn impact beetle assemblages and community structure. this study investigated whether attractiveness of dung beetles to different reso ... | 2014 | 25528749 |
| transferability of microsatellites for studies on the social behavior of the tufted capuchin monkey (genus sapajus). | because of relevant results that indicated that molecular techniques can provide increased knowledge of animal social systems, they usually complement observational field studies. despite the great utility of microsatellites, they are not available for all species. gathering genetic information using microsatellites that were originally designed for other species is a time-saving procedure. the aim of this study was to test the transferability of microsatellites and their usefulness in studies o ... | 2014 | 25501201 |
| occurrence of hemotropic mycoplasmas in non-human primates (alouatta caraya, sapajus nigritus and callithrix jacchus) of southern brazil. | hemoplasmas, the erythrocyte-associated mycoplasmas, have been detected in several primates, causing mostly subclinical infection. this study aimed to determine the prevalence of hemoplasma infection in captive and free-ranging monkeys from southern brazil, as well as factors and hematological abnormalities associated with infection. blood samples from 40 non-human primates (nhp) were tested for hemoplasmas and coinfections. an overall of 10/40 (25.0%) nhp tested positive for hemoplasmas using p ... | 2017 | 28673463 |
| molecular relationships and classification of several tufted capuchin lineages (cebus apella, cebus xanthosternos and cebus nigritus, cebidae), by means of mitochondrial cytochrome oxidase ii gene sequences. | the morphological systematics of the tufted capuchins is confusing. in an attempt to clarify the complex systematics and phylogeography of this taxon, we provide a first molecular analysis. we obtained mitochondrial cytochrome oxidase ii (mtcoii) gene sequences from 49 tufted capuchins that had exact geographic origins from diverse lineages in colombia, peru, bolivia, french guyana, brazil, argentina and paraguay and that belonged to clearly recognized morphological taxa. this project had 4 main ... | 2012 | 23128150 |
| grooming up the hierarchy: the exchange of grooming and rank-related benefits in a new world primate. | seyfarth's model assumes that female primates derive rank-related benefits from higher-ranking females in exchange for grooming. as a consequence, the model predicts females prefer high-ranking females as grooming partners and compete for the opportunity to groom them. therefore, allogrooming is expected to be directed up the dominance hierarchy and to occur more often between females with adjacent ranks. although data from old world primates generally support the model, studies on the relation ... | 2012 | 22590582 |
| consequences of lethal intragroup aggression and alpha male replacement on intergroup relations and home range use in tufted capuchin monkeys (cebus apella nigritus). | in conflicts between primate groups, the resource-holding potential (rhp) of competitors is frequently related to group size or male group size, which can remain relatively constant for long periods of time, promoting stable intergroup dominance relationships. demographic changes in neighboring groups, however, could introduce uncertainty into existing relationships. among tufted capuchin monkeys (cebus apella nigritus), dominant male replacement is a relatively infrequent demographic event that ... | 2012 | 22566159 |
| reduced range of the endangered crested capuchin monkey (sapajus robustus) and a possible hybrid zone with sapajus nigritus. | the crested capuchin monkey (sapajus robustus) is an endangered species endemic to the highly fragmented atlantic forest of brazil. surveys for s. robustus were carried out over a 25-month period (2003-2005) to obtain more precise geographical limits for the western range of the species. previously published localities for s. robustus were mapped, and each point was given a 25-km radius "buffer zone." the largest forest remnants in the buffer zones (>300 ha) in minas gerais were visited in order ... | 2017 | 28898502 |
| wild capuchin monkeys anticipate the amount of ripe fruit in natural trees. | tropical forests have a high diversity of tree species which have very low densities and vary across time in their seasons of peak fruiting and maturation rates. as evidence of the ability of primates to track or anticipate changes in fruit production at individual trees, researchers have used the increased speed of primate groups toward more rewarding food patches. we analyzed the speed of approach to natural trees of wild capuchin monkeys under the effect of scramble competition, after excludi ... | 2017 | 28634675 |
| female behavioral proceptivity functions as a probabilistic signal of fertility, not female quality, in a new world primate. | the interests of males and females in mating contexts often conflict, and identifying the information conveyed by sexual signals is central to understanding how signalers manage such conflicts. research into the information provided by female primate sexual signals has focused on exaggerated anogenital swellings as either reliable-indicators of reproductive quality (reliable-indicator hypothesis) or probabilistic signals of fertility (graded-signal hypothesis). while these morphological signals ... | 2015 | 26188948 |
| alu elements and the phylogeny of capuchin (cebus and sapajus) monkeys. | three families of new world monkeys, the pitheciidae, atelidae, and cebidae, are currently recognized. the monophyly of the cebidae is supported unequivocally by the presence of ten unique alu elements, which are absent from the other two families. in this paper, the five genomic regions containing these alu elements were sequenced in specimens representing nine capuchin (cebus, sapajus) species in order to identify mutations that may help elucidate the taxonomy and phylogenetic relationships of ... | 2015 | 25387886 |
| spontaneous pulmonary adenosquamous carcinoma in a free-living black capuchin monkey (sapajus nigritus). | pulmonary neoplasia is rare among wild new world primates. we report the gross, microscopical, and immunohistochemical features of a primary multicentric pulmonary adenosquamous carcinoma in a free-living black capuchin monkey (sapajus nigritus). herein, the spectrum of pulmonary neoplasms in non-human primates is widened and briefly reviewed. | 2017 | 29283438 |
| serological survey and dna screening of leptospira spp. in free-living adult tufted capuchin monkeys (cebus apella nigritus) in a forest reserve southeast são paulo state, brazil. | leptospirosis is an important anthropozoonosis. the study investigated the presence of anti-leptospira antibodies and detection of leptospira spp dna in the urine as well as the biochemical profile in neotropical wild primates living in a forest reserve from southeast são paulo state, brazil. | 2020 | 32876344 |
| viral diversity in oral cavity from sapajus nigritus by metagenomic analyses. | sapajus nigritus are non-human primates which are widespread in south america. they are omnivores and live in troops of up to 40 individuals. the oral cavity is one of the main entry routes for microorganisms, including viruses. our study proposed the identification of viral sequences from oral swabs collected in a group of capuchin monkeys (n = 5) living in a public park in a fragment of mata atlantica in south brazil. samples were submitted to nucleic acid extraction and enrichment, which was ... | 2020 | 32780265 |
| mycobacterium tuberculosis var. tuberculosis infection in two captive black capuchins (sapajus nigritus) in southern brazil. | tuberculosis is a common zooanthroponosis in humans with a high incidence in brazil, but it may also affect non-human primates (nhps), of which old world primates are most commonly involved. nonetheless, its occurrence in new world primates is unknown, and therefore, this study aimed to describe the infection by mycobacterium tuberculosis variant tuberculosis in two captive black capuchin monkeys (sapajus nigritus) in southern brazil. the primates were housed in the same enclosure, wherein close ... | 2020 | 32696420 |
| antimicrobial resistance and extended-spectrum beta-lactamase production in enterobacteria isolated from free-living primates. | the aim of this study was to evaluate the profile of antimicrobial resistance in members of the family enterobacteriaceae and to detect strains of extended-spectrum beta-lactamases (esbl) in free-living sapajus nigritus. oral and rectal swabs were collected from 15 primates to isolate and identify bacteria, conduct phenotypic tests to detect antimicrobial sensitivity and esbl-producing strains, and calculate the multiple antimicrobial resistance index. the least effective antimicrobial was amoxi ... | 2020 | 32315580 |
| against all odds: numerical assessment by tufted capuchin monkeys. | when competitors are able to assess the asymmetry in the resource holding potential before interacting, individuals or groups should avoid interacting with stronger opponents, thereby avoiding the energy costs and risk of injury associated with aggressive intergroup encounters. thus, escalated aggression is expected only between closely matched competitors. among argentine tufted capuchin monkeys (sapajus nigritus), intergroup dominance is decided by the asymmetry in male group size. using playb ... | 2020 | 31961003 |
| sperm morphology in neotropical primates. | the morphological and morphometric characterization of spermatozoa has been used as a taxonomic and phylogenetic tool for different species of mammals. we evaluated and compared the sperm morphometry of five neotropical primate species: alouatta caraya, ateles belzebuth and ateles chamek of family atelidae; and cebus cay (=sapajus cay) and cebus nigritus (=sapajus nigritus) of family cebidae. after the collection of semen samples, the following parameters were measured on 100 spermatozoa from ea ... | 2019 | 31640171 |
| experimental evidence for heterospecific alarm signal recognition via associative learning in wild capuchin monkeys. | many vertebrate taxa respond to heterospecific alarm calls with anti-predator behaviours. while it is unclear how apparent recognition is achieved, learned associations between the occurrence of the call and the presence of a predator are considered the most likely explanation. conclusive evidence that this behaviour is indeed underpinned by learning, however, is scarce. this study tested whether wild black capuchin monkeys (sapajus nigritus) learn to associate novel sounds with predators throug ... | 2019 | 31069567 |
| the impact of food provisioning on parasite infection in wild black capuchin monkeys: a network approach. | nonhuman primates host a variety of gastrointestinal parasites that infect individuals through different transmission routes. social contact among group members (e.g., body contact, grooming) brings the risk of parasite infection, especially when the pathogen infection is directly transmitted. along with this, accidental provisioning (i.e., food provisioning occurring during close tourist-wildlife interactions) is also considered to increase the risk of infection, as aggregation during feeding c ... | 2019 | 30631972 |
| antimicrobial resistance profiles in enterococcus spp. isolates from fecal samples of wild and captive black capuchin monkeys (sapajus nigritus) in south brazil. | the environment, human, and animals play an important role in the spread of antibiotic-resistant bacteria. enterococci are members of the gastrointestinal tracts of humans and animals and represent important reservoirs of antibiotic resistance genes. until today, few studies have examined antibiotic susceptibility in enterococci isolated from primates. therefore, the present study investigated species distribution, antibiotic susceptibility, and resistance genes in enterococci isolated from wild ... | 2018 | 30356681 |
| atlantic-primates: a dataset of communities and occurrences of primates in the atlantic forests of south america. | primates play an important role in ecosystem functioning and offer critical insights into human evolution, biology, behavior, and emerging infectious diseases. there are 26 primate species in the atlantic forests of south america, 19 of them endemic. we compiled a dataset of 5,472 georeferenced locations of 26 native and 1 introduced primate species, as hybrids in the genera callithrix and alouatta. the dataset includes 700 primate communities, 8,121 single species occurrences and 714 estimates ... | 2019 | 30317556 |
| do sexual calls in female black capuchin monkeys (sapajus nigritus) vary with fertility? an acoustic analysis. | females across a range of animal taxa produce vocalizations and signals uniquely associated with periods of mating. while such signals may ultimately function to increase female attractivity to males, conflicting findings challenge the extent to which these signals co-vary in accordance with the probability of conception. female black capuchin monkeys (sapajus nigritus) display an elaborate repertoire of both vocal and visual components as part of their socio-sexual behavior, and previous analys ... | 2018 | 30296346 |
| male resource defense mating system in primates? an experimental test in wild capuchin monkeys. | ecological models of mating systems provide a theoretical framework to predict the effect of the defendability of both breeding resources and mating partners on mating patterns. in resource-based mating systems, male control over breeding resources is tightly linked to female mating preference. to date, few field studies have experimentally investigated the relationship between male resource control and female mating preference in mammals due to difficulties in manipulating ecological factors (e ... | 2018 | 29787573 |
| a phylogenomic perspective on the robust capuchin monkey (sapajus) radiation: first evidence for extensive population admixture across south america. | phylogenetic relationships amongst the robust capuchin monkeys (genus sapajus) are poorly understood. morphology-based taxonomies have recognized anywhere from one to twelve different species. the current iucn (2017) classification lists eight robust capuchins: s. xanthosternos, s. nigritus, s. robustus, s. flavius, s. libidinosus, s. cay, s. apella and s. macrocephalus. here, we assembled the first phylogenomic data set for sapajus using ultra-conserved elements (uces) to reconstruct a capuchin ... | 2018 | 29545109 |
| anaesthetic and cardiorespiratory effects of ketamine plus dexmedetomidine for chemical restraint in black capuchin monkeys (sapajus nigritus). | to evaluate the quality of anaesthesia and cardiorespiratory effects of ketamine and two doses of dexmedetomidine in captive black capuchin monkeys (sapajus nigritus) undergoing routine clinical examination. | 2018 | 29129149 |
| experimental testing of reciprocal effects of nutrition and parasitism in wild black capuchin monkeys. | nutritional stress may predispose individuals to infection, which in turn can have further detrimental effects on physical condition, thus creating an opportunity for reciprocal effects between nutrition and parasitism. little experimental investigation has been conducted on this "vicious circle" hypothesis in wild animals, especially under natural conditions. we evaluated the reciprocal effects of nutritional status and parasitism using an experimental approach in two groups of wild black capuc ... | 2017 | 28986531 |