Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| american trypanosomiasis (chagas' disease) in hylobates pileatus. | 1970 | 4194193 | |
| a phylogeny of gibbons (hylobates spp.) based on morphological and behavioural characters. | a new estimate of the phylogenetic relationships among the nine gibbon taxa is presented, based on a compatibility analysis of 55 morphological and behavioural characters. the phylogeny presented here differs somewhat from those of other studies, but there appears to be a basic consensus that: the siamang and concolor gibbons represent the earliest forms to speciate; the agile, lar, moloch, müller's, and pileated gibbons represent the lates forms to speciate; with the kloss and hoolock gibbons r ... | 1982 | 7166287 |
| inheritance of stereotyped gibbon calls. | little is known about how vocal patterns develop in non-human primates, mainly because suitable controlled experiments are difficult to carry out on these animals. results of isolation experiments and observations of interspecific hybrids suggest no greater role for vocal learning than exists in many other vertebrates, and less than has been found in birds. we have now studied vocal patterns of hybrids between white-handed gibbons (hylobates lar) and pileated gibbons (hylobates pileatus) in natu ... | 1984 | 6542175 |
| estimation of density of gibbon groups by use of loud songs. | the density of gibbon populations may be estimated by listening for the loud duetted songs of monogamous territorial groups. this method requires a correction factor which must be estimated from the frequency of singing of an adequate number of known study groups. the correction factor and its error were estimated for pileated gibbons (hylobates pileatus) in khao soi dao wildlife sanctuary in southeastern thailand. among 30 groups studied, 47% sang per day, on average, but the variation between ... | 1993 | 31941194 |
| screening for simian foamy virus infection by using a combined antigen western blot assay: evidence for a wide distribution among old world primates and identification of four new divergent viruses. | simian foamy viruses (sfvs) belong to a genetically and antigenically diverse class of retroviruses that naturally infect a wide range of nonhuman primates (nhps) and can also be transmitted to humans occupationally exposed to nhps. current serologic detection of sfv infection requires separate western blot (wb) testing by using two different sfv antigens [sfv(agm) (african green monkey) and sfv(cpz) (chimpanzee)]. however, this method is labor intensive and validation is limited to only small n ... | 2003 | 12758172 |
| complete nucleotide sequence and phylogenetic analyses of hepatitis b virus isolated from two pileated gibbons. | we analyzed full-length sequence of hepatitis b virus (hbv) recovered from two pileated gibbons (hylobates pileatus) originally born in east asia. two animals possessed a viral genome of 3182 nt in length with a 33 nt deletion in the pre-s1 region, and designated hbv pg-makiko and hbv pg-yohko, respectively. both sequences had 65-90% similarity to type a-g of human hbv isolates. phylogenetic analysis demonstrated that both isolates were distinct from the human and other nonhuman primate hbv isol ... | 2003 | 14618082 |
| frequent infection of hylobates pileatus (pileated gibbon) with species-associated variants of hepatitis b virus in cambodia. | as well as being distributed widely in human populations, hepatitis b virus (hbv) infections occur frequently in chimpanzee, gibbon and other ape populations in sub-saharan africa and south-east asia. to investigate the frequency and genetic relationships of hbv infecting gibbons in cambodia, pileated gibbons (hylobates pileatus) that were originally wild-caught were screened for surface antigen. twelve of 26 (46 %) were positive, of which 11 were positive for hbv dna. phylogenetic analysis of c ... | 2005 | 15659752 |
| visual co-orientation and expectations about attentional orientation in pileated gibbons (hylobates pileatus). | this study investigated attentional processes in a sample of captive gibbons. an initial aim of the research was to examine subjects' ability to co-orient with photographic images of both conspecific and human models. the gibbons' expectancies about the focus of another's attention was then also assessed, with an expectancy violation paradigm revealing subjects' sensitivity to an incompatibility between visual orientation and the position of a target object. the gibbons were exposed to two condi ... | 2006 | 16412587 |
| prevalence and molecular characterization of the polymerase gene of gibbon lymphocryptovirus. | lymphocryptovirus (lcv) is found in various non-human primates. as a herpesvirus naturally infecting gibbons it is closely related to human epstein-barr virus (ebv) with which it shares considerable genetic, biological and epidemiologic features. | 2006 | 16764671 |
| a hydrophobic patch on proteinase 3, the target of autoantibodies in wegener granulomatosis, mediates membrane binding via nb1 receptors. | proteinase 3 (pr3), the target antigen of antineutrophil cytoplasm autoantibodies, which are found in patients with wegener granulomatosis, is a neutrophil serine protease localized within cytoplasmic granules. recently, the human neutrophil antigen nb1 was identified as a specific neutrophil cell surface receptor of pr3. we hypothesized that the unique hydrophobic cluster of pr3 that is not present on human neutrophil elastase and cathepsin g and presumably is also missing in other human pr3 ho ... | 2008 | 18854317 |
| phylogenetic relationships and divergence dates of the whole mitochondrial genome sequences among three gibbon genera. | phylogenetic relationships of gibbons (4 genera, 12 species) deduced from short/partial mitochondrial dna sequences were with low resolution and inconsistent. their divergence over the short period of time may require longer sequences for the higher resolution. to solve the problems, we newly sequenced the whole mitochondrial genome of hylobates agilis, hylobates pileatus, nomascus sp. and symphalangus syndactylus. a highly resolved phylogenetic tree was obtained for the mitochondrial genome in ... | 2010 | 20138221 |
| urinary estrogens, progesterone, and lh changes during normal menstrual cycles of a captive female pileated gibbon (hylobates pileatus). | urinary steroid hormones and luteinizing hormone (lh) were monitored in a female pileated gibbon. the lh concentration almost peaked the day after estrogens peaks. the progesterone increased sharply after the lh peaks. our results revealed for the first time the relationship between daily changes in urinary hormones throughout normal menstrual cycles in pileated gibbon. | 2010 | 20553368 |
| selection of sleeping trees in pileated gibbons (hylobates pileatus). | selection and use patterns of sleeping sites in nonhuman primates are suggested to have multiple functions, such as predation avoidance, but they might be further affected by range defense as well as foraging constraints or other factors. here, we investigate sleeping tree selection by the male and female members of one group of pileated gibbons (hylobates pileatus) at khao ang rue nai wildlife sanctuary, thailand. data were collected on 113 nights, between september 2006 and january 2009, yield ... | 2010 | 20196132 |
| anatomical contributions to hylobatid taxonomy and adaptation. | compared with the great apes, the small-bodied hylobatids were treated historically as a relatively uniform group with 2 genera, hylobates and the larger-bodied symphalangus. four genera are now recognized, each with a different chromosome number: hoolock (hoolock) (38), hylobates (44), nomascus (crested gibbon) (52), and symphalangus (siamang) (50). previous morphological studies based on relative bone lengths, e.g., intermembral indices; molar tooth sizes; and body masses did not distinguish t ... | 2011 | 21892236 |
| unresolved molecular phylogenies of gibbons and siamangs (family: hylobatidae) based on mitochondrial, y-linked, and x-linked loci indicate a rapid miocene radiation or sudden vicariance event. | according to recent taxonomic reclassification, the primate family hylobatidae contains four genera (hoolock, nomascus, symphalangus, and hylobates) and between 14 and 18 species, making it by far the most species-rich group of extant hominoids. known as the "small apes", these small arboreal primates are distributed throughout southeast, south and east asia. considerable uncertainty surrounds the phylogeny of extant hylobatids, particularly the relationships among the genera and the species wit ... | 2011 | 21074627 |
| gibbons (hylobates pileatus, h. moloch, h. lar, symphalangus syndactylus) follow human gaze, but do not take the visual perspective of others. | we investigated four gibbon species of two different genera (hylobates pileatus, h. moloch, h. lar, symphalangus syndactylus) in terms of their looking behavior in response to a human who either looked up or looked at the gibbon. comparing those two conditions, gibbons as a group looked up more when the human was looking up, but they also performed more looks in other directions and thus generally looked more in this condition. unlike great apes, gibbons did not respond differently between condi ... | 2012 | 22847522 |
| species association of hepatitis b virus (hbv) in non-human apes; evidence for recombination between gorilla and chimpanzee variants. | hepatitis b virus (hbv) infections are widely distributed in humans, infecting approximately one third of the world's population. hbv variants have also been detected and genetically characterised from old world apes; gorilla gorilla (gorilla), pan troglodytes (chimpanzee), pongo pygmaeus (orang-utan), nomascus nastusus and hylobates pileatus (gibbons) and from the new world monkey, lagothrix lagotricha (woolly monkey). to investigate species-specificity and potential for cross species transmiss ... | 2012 | 22432021 |
| nonhuman primate retroviruses from cambodia: high simian foamy virus prevalence, identification of divergent stlv-1 strains and no evidence of siv infection. | nonhuman primates (nhps) carry retroviruses such as simian immunodeficiency viruses (siv), simian t-cell lymphotropic viruses (stlv) and simian foamy viruses (sfv). here, we revisited nhps from cambodia to assess the prevalence and diversity of these retroviruses using updated viral detection tools. we screened blood from 118 nhps consisting of six species (macaca fascicularis (n=91), macaca leonine (n=8), presbytis cristata (n=3), nycticebus coucang (n=1), hylobates pileatus (n=14), and pongo p ... | 2013 | 23612320 |
| application of multicolor banding combined with heterochromatic and locus-specific probes identify evolutionary conserved breakpoints in hylobates pileatus. | the question what makes homo sapiens sapiens (hsa) special among other species is one of the basic questions of mankind. a small contribution to answer this question is to study the chromosomal constitution of hsa compared to other, closely related species. in order to check the types and extent of evolutionary conserved breakpoints we studied here for the first time the chromosomes of hylobates pileatus (hpi) compared to hsa and hylobates lar (hla) by means of molecular cytogenetics. | 2016 | 26893612 |
| the ecology of white-handed and pileated gibbons in a zone of overlap and hybridization in thailand. | the study of related species in contact zones can elucidate what factors mediate species coexistence and geographical distributions. we investigated niche overlap and group interactions of two gibbon species and their hybrids co-occurring in a zone of overlap and hybridization. | 2017 | 28726303 |
| intestinal parasites and the occurrence of zoonotic giardia duodenalis genotype in captive gibbons at krabokkoo wildlife breeding center, thailand. | intestinal parasitic infections can have an impact on health and growth of wildlife. the current study aims were to determine the prevalence of intestinal parasites and to molecular characterize giardia duodenalis and cryptosporidium spp. in captive gibbons at krabokkoo wildlife breeding center, thailand. fifty-five gibbons, 2 agile- (hylobates agilis), 38 lar- (hylobates lar) and 15 pileated gibbons (hylobates pileatus) were included in this study. fecal samples were collected individually at k ... | 2019 | 31106211 |
| molecular analysis of the complete genome of a simian foamy virus infecting hylobates pileatus (pileated gibbon) reveals ancient co-evolution with lesser apes. | foamy viruses (fvs) are complex retroviruses present in many mammals, including nonhuman primates, where they are called simian foamy viruses (sfvs). sfvs can zoonotically infect humans, but very few complete sfv genomes are available, hampering the design of diagnostic assays. gibbons are lesser apes widespread across southeast asia that can be infected with sfv, but only two partial sfv sequences are currently available. we used a metagenomics approach with next-generation sequencing of nuclei ... | 2019 | 31277268 |
| the forearm and hand musculature of semi-terrestrial rhesus macaques (macaca mulatta) and arboreal gibbons (fam. hylobatidae). part ii. quantitative analysis. | nonhuman primates have a highly diverse locomotor repertoire defined by an equally diverse hand use. based on how primates use their hands during locomotion, we can distinguish between terrestrial and arboreal taxa. the 'arboreal' hand is likely adapted towards high wrist mobility and grasping, whereas the 'terrestrial' hand will show adaptations to loading. while the morphology of the forearm and hand bones have been studied extensively, functional adaptations in the forearm and hand musculatur ... | 2020 | 33011967 |
| the forearm and hand musculature of semi-terrestrial rhesus macaques (macaca mulatta) and arboreal gibbons (fam. hylobatidae). part i. description and comparison of the muscle configuration. | primates live in very diverse environments and, as a consequence, show an equally diverse locomotor behaviour. during locomotion, the primate hand interacts with the superstrate and/or substrate and will therefore probably show adaptive signals linked with this locomotor behaviour. whereas the morphology of the forearm and hand bones have been studied extensively, the functional adaptations in the hand musculature have been documented only scarcely. to evaluate whether there are potential adapta ... | 2020 | 32511764 |