Publications

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intraspecies variation in dominance style of macaca fuscata.knowledge of intraspecific variation is important to test the evolutionary basis of covariation in primate social systems, yet few reports have focused on it, even in the best-studied species of the macaca genus. we conducted a comparative study of the dominance styles among three provisioned, free-ranging groups of japanese macaques at shodoshima island, takasakiyama mountain and shiga heights, and collected standard data on aggressive and affiliative behavior during a period of 5 years. our da ...201423797620
the influence of snowfall, temperature and social relationships on sleeping clusters of japanese monkeys during winter in shiga heights.we studied japanese monkeys (macaca fuscata) of the shiga a(1) troop at their sleeping sites in shiga heights, japan, for 41 nights during 3 winters. monkeys chose their sleeping sites in japanese cedars and in deciduous broad-leaved forests on non-snowing nights and in japanese cedar forests on snowing nights. we counted 399 sleeping clusters in which 2 or more monkeys remained in physical contact through the night and 43 solitary sleeping monkeys, though monkeys did not maintain physical conta ...200716897193
the influence of snowfall, temperature and social relationships on sleeping clusters of japanese monkeys during winter in shiga heights.we studied japanese monkeys (macaca fuscata) of the shiga a(1) troop at their sleeping sites in shiga heights, japan, for 41 nights during 3 winters. monkeys chose their sleeping sites in japanese cedars and in deciduous broad-leaved forests on non-snowing nights and in japanese cedar forests on snowing nights. we counted 399 sleeping clusters in which 2 or more monkeys remained in physical contact through the night and 43 solitary sleeping monkeys, though monkeys did not maintain physical conta ...200716897193
studies on babesia first found in murine in japan: epidemiology, morphology and experimental infection.during the period from november 1980 to september 1982, 314 small wild mammals were captured in 5 localities in japan. twenty-six out of 86 apodemus speciosus and one out of 6 a. argenteus both species captured in shiga prefecture (35 degrees 02'n, 135 degrees 50'e, 330 m elev .) were positive for babesia. the parasitemia in those animals was generally low. the infection rate did not show any significant difference between sexes of the host or between seasons, whereas it tended to go up with the ...19846730782
one-trial long-lasting food-aversion learning in wild japanese monkeys (macaca fuscata).we examined how japanese monkeys in the wild formed an aversion to food which had been paired with poison. ten monkeys of various ages and both sexes were chosen as subjects from 105 members of the shiga-a1 troop at jigokudani in shiga heights in japan. we gave almond nuts to each subject. once a monkey ate 10-20 almond nuts, he was captured and moved into an injection cage. seven experimental subjects were injected intravenously with cyclophosphamide (20 mg/kg). three control subjects received ...19836670970
one-trial long-lasting food-aversion learning in wild japanese monkeys (macaca fuscata).we examined how japanese monkeys in the wild formed an aversion to food which had been paired with poison. ten monkeys of various ages and both sexes were chosen as subjects from 105 members of the shiga-a1 troop at jigokudani in shiga heights in japan. we gave almond nuts to each subject. once a monkey ate 10-20 almond nuts, he was captured and moved into an injection cage. seven experimental subjects were injected intravenously with cyclophosphamide (20 mg/kg). three control subjects received ...19836670970
thermoregulation of the japanese macaque living in a snowy mountain area.a field investigation was conducted to study the thermoregulatory responses in nine japanese macaques (macaca fuscata) living in a snowy mountain area, jigoku-dani (hell valley, about 1,000 m above sea level) in shiga heights in central japan in late january 1975. at about the same time, a laboratory study was made on four japanese macaques reared in mild climate in an outdoor cage in inuyama city. in the hell valley (hv) monkeys, no significant change in metabolic rate was observed at ta betwee ...1977410988
molecular identification of oesophagostomum and trichuris eggs isolated from wild japanese macaques.natural habitat fragmentation and reducing habitat quality have resulted in an increased appearance of japanese macaques, macaca fuscata (gray, 1870), in suburban areas in japan. to investigate the risk of zoonotic infections, a coprological survey of helminth eggs passed by wild japanese macaques was carried out in 2009 and 2010 in shiga prefecture, japan. microscopic examination found helminth eggs in high prevalence, and nucleotide sequencing of dna extracted from the eggs identified oesophag ...201222949756
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