Publications

yersinia infection in two captive guereza colobus monkeys (colobus guereza).	two guereza colobus monkeys (colobus guereza) reared in a zoological garden in japan suddenly died of multifocal fibrinonecrotic gastroenteritis and septicemia associated with infection by yersinia spp. it was necessary to microbiologically differentiate yersinia frederiksenii and y. enterocolitica. we described the pathological findings and discuss the causal agent to emphasize the need to revert to using a combination of multiple examinations for diagnosis.	2019	31308292
kaposi sarcoma in mantled guereza.	we identified a novel kaposi's sarcoma herpesvirus-related rhadinovirus (colobine gammaherpesvirus 1) in a mantled guereza (colobus guereza kikuyensis). the animal had multiple oral tumors characterized by proliferation of latent nuclear antigen 1-positive spindle cells and was not co-infected with immunosuppressive simian viruses, suggesting that it had kaposi sarcoma caused by this novel rhadinovirus.	2019	31310216
novel virus related to kaposi's sarcoma-associated herpesvirus from colobus monkey.	we determined the complete genome sequence of a virus isolated from a mantled guereza that died of primary effusion lymphoma. the virus is closely related to kaposi's sarcoma-associated herpesvirus (kshv) but lacks some genes implicated in kshv pathogenesis. this finding may help determine how kshv causes primary effusion lymphoma in humans.	2019	31310220
insights into the molecular systematics of trichuris infecting captive primates based on mitochondrial dna analysis.	nematodes belonging to the trichuris genus are prevalent soil-transmitted helminths with a worldwide distribution in mammals, while humans are mainly affected in areas with insufficient sanitation such as in africa, asia and south america. traditionally, whipworms infecting primates are referred to trichuris trichiura, but recent molecular and morphological evidence suggests that more than one species may be able to infect humans and non-human primates. here, we analyzed the genetic diversity an ...	2019	31395201
a preliminary survey of medium and large-sized mammals from lebu natural protected forest, southwest showa, ethiopia.	this study was conducted to determine the species composition and diversity of medium and large-sized mammals from lebu natural protected forest, ethiopia. surveys were conducted to record mammals through direct observation and indirect evidence from three habitat types, namely: natural forest, bushland, and riverine forest. a total of 15 mammalian species were recorded. the species recorded were papio anubis, chlorocebus aethiops, tragelaphus scriptus, canis aureus, crocuta crocuta, panthera pa ...	2019	31832163
interactions between overlapping multimale groups of black and white colobus monkeys (colobus guereza) in the kakamega forest, kenya.	sixteen out of 18 groups of black and white colobus monkeys, or guerezas (colobus guereza), observed in the kakamega forest, kenya, included more than one adult male. each group overlapped in its home range with 4-7 other groups, and no group appeared to have exclusive access to any part of its home range. groups were engaged in intergroup encounters one-quarter of observation time. encounters often occurred around preferred feeding sites as different groups were attracted to such sites in their ...	1996	31918478
application of dna fingerprinting probes to old world monkeys.	analysis of tandem-repetitive minisatellite dna in humans provides great discriminatory power in paternity identification and individualization of tissue samples. the molecular probes used to study these hyper-variable loci are here applied to dna isolated from related animals in four species of old world monkeys. probes 33.6 and 33.15 are shown to cross-hybridize with variable minisatellites in macaca fuscata, macaca silenus, erythrocebus patas, and colobus guereza. the dna fingerprint patterns ...	1988	31968875
do line-transect surveys systematically underestimate primate densities in logged forests?	the rate at which social groups of primates are encountered in disturbed rain forest may be biased relative to undisturbed rain forest. a recently reported case study revealed a 25% reduction in postlogging raw encounter rates even though the true density of primates remained at the prelogging level. if biased raw encounter rates are typical of disturbed forests, and if they translate into equally biased line-transect density estimates, results of many comparative surveys might prove misleading ...	1987	31973482
the diet and feeding behavior of the black-and-white colobus (colobus guereza) in the kalinzu forest, uganda.	one of the goals for primate feeding ecology is to understand the factors that affect inter- and intra-specific variations. therefore, a detailed description of basic feeding ecology in as many populations as possible is necessary and warrants further understanding. the black-and-white colobus (colobus guereza) or guereza is widely distributed in africa and is one of the well-studied colobines in terms of their feeding; they demonstrate considerable variation in their diets in response to local ...	2020	32026152
digestibility of a high-fiber biscuit-based diet by black and white colobus (colobus guereza).	the acceptability and digestibility of a high-fiber biscuit-based diet was investigated using two adult male colobus guereza animals. although the animals were initially reluctant to accept the biscuit, it was eventually readily consumed. apparent digestion coefficients for the diet (average composition, dry matter basis: 16% crude protein, 25% neutral detergent fiber (ndf), 9.5% acid detergent fiber (adf), 1.2% acid lignin) determined by total fecal collection were 0.871 for dry matter, 0.813 f ...	1985	32102487
is colobus guereza gallarum a valid endemic ethiopian taxon?	black-and-white colobus (colobus guereza rüppell, 1835) are arboreal old world monkeys inhabiting large parts of the deciduous and evergreen forests of sub-saharan africa. two of the eight subspecies of colobus guereza are endemic to ethiopia: c. g. gallarum and c. g. guereza. however, the validity of the ethiopian taxa is debated and observed morphological differences were attributed to clinal variation within c. g. guereza. to date, no molecular phylogeny of the ethiopian guerezas is available ...	2019	32110714
skeletal morphology of the lesula (cercopithecus lomamiensis) and the evolution of guenon locomotor behavior.	the guenons (tribe cercopithecini) are a diverse and primarily arboreal radiation of old world monkeys from africa. however, preliminary behavioral observations of the lesula (cercopithecus lomamiensis), a little-known guenon species described in 2012, report it spending substantial amounts of time on the ground. new specimens allow us to present the first description of lesula postcranial morphology and apply a comparative functional morphology approach to supplement our knowledge of its locomo ...	2020	32124976
molecular prevalence and subtypes of blastocystis sp. in primates in northern china.	blastocystis sp. is a common enteric protist that colonizes humans and a wide range of animals. although some studies have reported incidences of blastocystis sp. in humans and animals in china, there are limited data available concerning the prevalence among people and non-human primates. the aims of the present study were to determine the prevalence, subtype distribution and genetic characteristics of blastocystis sp. in primates, and to investigate the potential for zoonotic transmission betw ...	2020	32445593
abundance, diversity, and distribution of primates at welel mountain, kellem wollega zone, oromia region, ethiopia.	primates are the mammals of the order primate that is characterized by advanced development of binocular vision and enlargement of the cerebral hemispheres. the aim of this study was to investigate the abundance, diversity, and distribution of primates on welel mountain. from august 2017 to february 2018, we collected data from different parts of welel mountain during wet and dry seasons of the year and analyzed them using spss version 20. we identified four primate species: chlorocebus aethiops ...	2020	32454802
selecting between iron-rich and clay-rich soils: a geophagy field experiment with black-and-white colobus monkeys in the budongo forest reserve, uganda.	geophagy, the intentional consumption of soil, has been observed in humans and numerous other animal species. geophagy has been posited to be adaptive, i.e., consumed soil protects against gastrointestinal distress and/or supplements micronutrients. we conducted a field experiment in the budongo forest, uganda, to investigate geophagic behaviors, including soil preference, the quantity of soil eaten, and competition for access to preferred soils. we placed pairs of artificial tree stumps at two ...	2020	32676864