Publications

TitleAbstractYear
Filter
PMID
Filter
the ileo-caecal region of callicebus personatus, with some observations on the morphology of the mammalian caecum. 191917103881
dermatoglyphic patterns and pattern intensities of callicebus (primates: cebidae): description and comparison of three species.the palmar and plantar dermatoglyphic pattern types are described for three species of callicebus (18 callicebus moloch, 18 callicebus torquatus and 7 callicebus personatus). mean pattern intensities (api) were calculated for each of seven areas of the palm and nine areas of the sole, and a summed mean total pattern intensity (tpi) for each volar surface. nonparametric statistical testing showed no significant bilateral asymmetry or sexual dimorphism in pattern intensities. pattern profiles desc ...19863732968
beta2-microglobulin in neotropical primates (platyrrhini).nucleotide sequences for the three exons of the beta2-microglobulin (beta2m) gene (b2m) were determined for 135 animals representing 37 species and all 16 genera of neotropical primates (platyrrhini). twenty-eight different nucleotide sequences, encoding for 26 different proteins, were obtained. in comparison with those of other primate species, the beta2-microglobulins of the platyrrhini form a distinct clade. individual genera of neotropical primates have distinctive b2m sequences, but within ...19989634477
density and habitat use of primates at an atlantic forest reserve of southeastern brazil.about 58.3 km of transects were surveyed throughout 21,800 ha of an atlantic forest reserve of southeastern brazil, yielding habitat preference data and density estimates for three of the four primate species present. the densities were calculated using the "fourier series estimator" and were 10.5, 2.2 and 1.2 groups/km2 for callithrix geoffroyi, cebus apella robustus and callicebus personatus personatus, respectively. alouatta fusca fusca although present, was not seen during the survey. c. geo ...19957569145
climate and land use changes will degrade the configuration of the landscape for titi monkeys in eastern brazil.land use changes have profound effects on populations of neotropical primates, and ongoing climate change is expected to aggravate this scenario. the titi monkeys from eastern brazil (callicebus personatus group) have been particularly affected by this process, with four of the five species now allocated to threatened conservation status categories. here, we estimate the changes in the distribution of these titi monkeys caused by changes in both climate and land use. we also use demographic-base ...201626663738
genomic mapping of human chromosome paints on the threatened masked titi monkey (callicebus personatus).callicebus is a complex genus of neotropical primates thought to include 29 or more species. currently, the genus is divided into 5 species groups: donacophilus, cupreus, moloch, torquatus and personatus. however, the phylogenetic relationships among the species are still poorly understood. this genus is karyotypically diverse and shows extensive variation in diploid number (2n = 16 to 50). to foster a better understanding of the chromosomal diversities and phylogenetic relationships among the s ...201121311179
a new karyotype of an endangered primate species (callicebus personatus) from the brazilian atlantic forests.the genus callicebus has 28 species arranged in five groups: donacophilus, torquatus, moloch, cupreus and personatus. the personatus group occurs in the brazilian atlantic forests where it is isolated from the other callicebus groups. the present paper is the first report on the karyotype of callicebuspersonatus. we compared the karyotypes of c. personatus and c. nigrifrons utilizing the following classic banding techniques: g-, c-, nor banding, g/c- and g/nor sequential banding. the karyotype o ...200415061784
diet of northern masked titi monkeys (callicebus personatus). 200111964502
ranging behavior and intraspecific relationships of masked titi monkeys (callicebus personatus personatus).two neighboring groups of masked titi monkeys (callicebus personatus personatus) were observed for nearly 240 hr over a 5-mo period. minimum home range estimates for the groups were 10.7 and 12.3 ha; daily path length averaged 1 km. each group shared a minimum of nearly 20% of its range with neighbors, and encounters between groups were rare and exclusively vocal. there was no strong evidence that titis called at the edge of their ranges or used non-overlap areas more intensively. masked titis a ...200111170170
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 ...19938206419
Displaying items 1 - 10 of 10