| host range characteristics of the primate coccidian, isospora arctopitheci rodhain 1933 (protozoa: eimeriidae). | studies were conducted on 35 primates, 12 carnivores, and 2 marsupials to determine their susceptibility to the primate coccidian, isospora arctopitheci. patent oocyst infections resulted in 12 of the 14 species of animals investigated. these included 6 genera of new world primates native to panama: saguinus geoffroyi, aotus trivirgatus, ateles fusciceps, cebus capucinus, alouatta villosa, and saimiri sciureus. in addition 4 families of carnivores (2 domestic and 2 sylvatic) and 1 species of mar ... | 1977 | 403270 |
| the prevalence of trypanosomes and microfilariae in panamanian monkeys. | a total of 3,523 wild caught monkeys from panama was examined for blood parasites from august 1968 through june 1972. trypanosomes or microfilariae were observed in the blood of 31.1% of the monkeys. mixed infections, with microfilariae and trypanosomes, were detected in 6.6% of the animals. trypanosoma cruzi was found in marmosets. saguinus geoffroyi (12.2%), in white-faced capuchins, cebus capucinus (5.0%), in squirrel monkeys, saimiri sciureus (1.7%) and in black spider monkeys, ateles fuscic ... | 1974 | 4217567 |
| the transfer of plasmodium falciparum from man to the marmoset, saguinus geoffroyi. | | 1967 | 4962341 |
| infections of plasmodium vivax in saguinus geoffroyi. | | 1970 | 4990932 |
| a aturally acquired ifection of plasmodium brasilianum in the marmset, saguinus geoffroyi. | | 1971 | 4994292 |
| ontogenetic characteristics of the vomeronasal organ in saguinus geoffroyi and leontopithecus rosalia, with comparisons to other primates. | it has been suggested that the variability of the primate vomeronasal organ (vno) may be greater than previously thought, especially among new world monkeys. it is not clear to what extent vno variation reflects ontogenetic, functional, or phylogenetic differences among primates. the present study investigated vno anatomy in an ontogenetic series of two genera of callitrichid primates, in order to assess recent attempts to develop vno character states and to examine the evidence for vno function ... | 2003 | 12884316 |
| expression of neuron-specific markers by the vomeronasal neuroepithelium in six species of primates. | vomeronasal organ (vno) morphology varies markedly across primate taxa. old world monkeys display no postnatal vno. humans and at least some apes retain a vestigial vno during postnatal life, whereas the strepsirrhines and new world monkeys present a morphologically well-defined vno that, in many species, is presumed to function as an olfactory organ. available microanatomical and behavioral studies suggest that vno function in these species does not precisely duplicate that described in other m ... | 2004 | 15470676 |
| secondary pneumatization of the maxillary sinus in callitrichid primates: insights from immunohistochemistry and bone cell distribution. | the paranasal sinuses remain elusive both in terms of function and in the proximate mechanism of their development. the present study sought to describe the maxillary sinuses (mss) in three species of callitrichid primates at birth, a time when secondary pneumatization occurs rapidly in humans. the mss were examined in serially sectioned and stained slides from the heads of two callithrix jacchus, one leontopithecus rosalia, and two saguinus geoffroyi. specimens were examined microscopically reg ... | 2005 | 15983987 |
| two different primate species express an identical functional mhc class i allele. | the products of the highly polymorphic and variable major histocompatibility complex (mhc) class i loci play a crucial role in host defenses against infectious disease. while similar alleles have been found in closely related species, sharing of a functional mhc class i allele between two species has never been reported. here we show that an identical functional mhc class i molecule is present in two different primate species with an approximate divergence time of 0.7 million years. lymphocytes ... | 1998 | 9435338 |
| saguinus geoffroyi as a host for plasmodium vivax. | | 1973 | 4204184 |
| letter: plasmodium vivax tissue stage in saguinus geoffroyi. | | 1976 | 822543 |
| angiostrongylus cantonensis infection in captive geoffroy's tamarins (saguinus geoffroyi). | 3 geoffroy's tamarins (saguinus geoffroyi) in a zoo in east central alabama developed neurologic signs shortly after a tamarin kept in the same enclosure was found dead. | 2014 | 25229535 |
| ontogenetic observations on the vomeronasal organ in two species of tamarins using neuron-specific beta-tubulin iii. | callitrichid primates (tamarins, marmosets) have extreme variation in the vomeronasal organ (vno), including ontogenetic differences in the neuroepithelium and vomeronasal duct (vnd) patency at birth. such differences render the timing and extent of vno maturation debatable in callitrichids, but no studies have used neuron-specific immunohistochemical markers to address this question. the present study compared the number of vno epithelial cells that express immunoreactivity to neuron-specific b ... | 2004 | 15103735 |
| ontogeny of the nasopalatine duct in primates. | ecological explanations have been put forward to account for the precocious or delayed development of patency in ducts leading to the vomeronasal organ (vno) in certain mammals. perinatal function may be related, in part, to the patency or fusion of the vomeronasal and nasopalatine (npd) ducts. however, few studies have focused on npd development in primates, which generally have a prolonged period of dependence during infancy. in this study we examined 24 prenatal primates and 13 neonatal prima ... | 2003 | 12923897 |
| pelvic sexual dimorphism among species monomorphic in body size: relationship to relative newborn body mass. | females have larger pelves than males among eutherians to mitigate obstetrical difficulty. this study addresses 3 issues concerning pelvic sexual dimorphism using 8 species that are sexually monomorphic in nonpelvic size: aotus azarae , castor canadensis , dasypus novemcinctus , hylobates lar , saguinus geoffroyi , sciurus carolinensis , sylvilagus floridanus , and urocyon cinereoargenteus . using published data to compute the index of relative newborn body mass (rnbm = [newborn body mass/adult ... | 2016 | 30302031 |
| olfactory marker protein expression in the vomeronasal neuroepithelium of tamarins (saguinus spp). | knowledge of the vomeronasal neuroepithelium (vnne) microanatomy is disproportionately based on rodents. to broaden our knowledge, we examined olfactory marker protein (omp) expression in a sample of twenty-three non-human primates. the density of omp (+) vomeronasal sensory neurons (vsns) in the vnne was measured. here we compared omp (+) vsn density in five species of saguinus (a genus of new world monkey) of different ages to a comparative primate sample that included representatives of every ... | 2010 | 21195063 |
| retrospective mortality review of six callitrichid species housed at a single institution (1990-2014). | callitrichids are commonly exhibited species in zoological institutions. retrospective mortality studies allow institutions to evaluate health trends in captive populations and have the potential to advance zoological medicine and husbandry practices. in this single institution, retrospective study, histopathologic records were reviewed for 166 callitrichids comprising six species. for all species and age-groups combined, trauma was the leading cause of death followed by enteritis and stillbirth ... | 2018 | 30212336 |
| excystation of isospora arctopitheci rodhain, 1933 with notes on a similiar process in isospora begemina (stiles, 1891) lühe, 1906. | the in vitro excystation process of sporozoites of isospora arctophitheci rodhain, 1933 from the titi marmoset saguinus geoffroyi and of isospora bigemina (stiles, 1891) lühe, 1906 from the bobcat, lynx rufus is presented. sporocysts of both species lack a stieda body and when exposed to a trypsin-sodium taurocholate (ph 7.4) excysting fluid the walls of both collapse in a similar fashion, along apparently predetermined lines. similarities and differences on excystation between. i. arctopitheci, ... | 1976 | 1258522 |
| changes in range use of geoffroy's tamarins (saguinus geoffroyi) associated with habituation to observers. | | 1998 | 9595684 |
| fate of the nasal capsular cartilages in prenatal and perinatal tamarins (saguinus geoffroyi) and extent of secondary pneumatization of maxillary and frontal sinuses. | development of the nasal capsule cartilages was studied in seven geoffroy's tamarins (saguinus geoffroyi), including one fetus, five neonates and one infant. four additional postnatal specimens of the genus were studied (one 5-month-old and three adults) to determine the magnitude of postnatal expansion of the paranasal sinuses. alcian blue histochemistry and osteopontin immunohistochemistry were employed in selected subadult specimens to characterize cartilage matrix. the fetal s. geoffroyi pos ... | 2008 | 18951479 |
| role of recent and old riverine barriers in fine-scale population genetic structure of geoffroy's tamarin (saguinus geoffroyi) in the panama canal watershed. | the role of physical barriers in promoting population divergence and genetic structuring is well known. while it is well established that animals can show genetic structuring at small spatial scales, less well-resolved is how the timing of the appearance of barriers affects population structure. this study uses the panama canal watershed as a test of the effects of old and recent riverine barriers in creating population structure in saguinus geoffroyi, a small cooperatively breeding neotropical ... | 2012 | 22423325 |
| no sex-biased dispersal in a primate with an uncommon social system-cooperative polyandry. | an influential hypothesis proposed by greenwood (1980) suggests that different mating systems result in female and male-biased dispersal, respectively, in birds and mammals. however, other aspects of social structure and behavior can also shape sex-biased dispersal. although sex-specific patterns of kin cooperation are expected to affect the benefits of philopatry and dispersal patterns, empirical evidence is scarce. unlike many mammals, saguinus geoffroyi (geoffroy's tamarin) has a breeding sys ... | 2014 | 25374783 |
| a field study of geoffroy's tamarin (saguinus geoffroyi) in panama. | a 3-month field study was conducted in panama to determine presence and relative abundance of saguinus geoffroyi, the geoffroy's tamarin, and status of its habitat (see acknowledgments for taxonomic note). this primate has a wide geographical distribution in eastern panama; however, local distribution is highly variable. tropical forest habitat is rapidly being converted for agriculture and timber. areas where human access was strictly limited showed tamarin densities significantly greater than ... | 1985 | 31986797 |
| trypanosome infections in the marmoset (saguinus geoffroyi) from the panama canal zone. | from august 1973 through may 1974 a total of 148 marmosets (saguinus geoffroyi) were examined for blood parasites. parasites were detected in 93.2% of the monkeys. direct examination of blood revealed 82.4% infected with trypanosomes; trypanosoma cruzi was seen in 1.3% of the animals examined t. minasense in 52.7% and t. rangeli in 25%. however, the use of several diagnostic tests (direct microscopic examination, hemoculture, xenodiagnosis, and animal inoculation) in 15 marmosets revealed t. cru ... | 1976 | 820209 |
| hematologic values of the panamanian marmoset (saguinus geoffroyi). | | 1970 | 4984311 |
| susceptibility of the marmoset, saguinus geoffroyi pucheran, to intraperitoneal and oral infections with besnoitia (protozoa: toxoplasmea). | | 1967 | 6078600 |
| demodectic mange in a tamarin (saguinus geoffroyi). | a young female tamarin (saguinus geoffroyi) developed erythema, alopecia, and papule formation on the skin of the limbs, tail, and head. examination of skin scrapings and a biopsy specimen revealed mites identified as demodex sp. histologically the mites were found in hair follicles, and they were associated with focal degenerative and inflammatory changes in the skin. successful treatment included topical application of 1% ronnel solution and rotenone ointment. | 1983 | 6406762 |