Shiho Fujita
Datos Biográficos
| ID | 5206664 |
|---|---|
| NOMBRE | Shiho Fujita |
| NOMBRES | Shiho |
| APELLIDO | Fujita |
| FIRMA | FUJITA S |
| AFILIACIONES | Kyoto University |
| VERIFICADO | No |
| TOTAL DE OBRAS | 16 |
| TOTAL DE CITAS | 12 |
| TOTAL COMO AUTOR | 16 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2001 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2023 |
| ÍNDICE H | 2 |
Diet‐related factors strongly shaped the gut microbiota of Japanese macaques
Although knowledge of the functions of the gut microbiome has increased greatly over the past few decades, our understanding of the mechanisms governing its ecology and evolution remains obscure. While host genetic distance is a strong predictor of the gut microbiome in large‐scale studies and captive settings, its influence has not always been evident at finer taxonomic scales, especially when considering among the recently diverged animals in n…
Symposium report
11)
The Submission of a Request to Futtsu City Regarding the Reconstruction of Takagoyama Nature Zoo
Ranging behavior of Mahale chimpanzees
Male genetic structure and paternity in western lowland gorillas ( Gorilla gorilla gorilla )
The male dispersal patterns of western lowland gorillas (WLGs, Gorilla gorilla gorilla ) are not well understood. To determine whether most silverbacks stay close to their relatives, we analyzed autosomal and Y‐chromosomal microsatellites (STRs) in wild WLGs at Moukalaba, Gabon. We obtained STR genotypes for 38 individuals, including eight silverbacks and 12 adult females in an approximately 40 km 2 area. Among them, 20 individuals were members o…
Molecular diversity of entodiniomorphid ciliate Troglodytella abrassarti and its coevolution with chimpanzees
The entodiniomorphid ciliate Troglodytella abrassarti is a colonic mutualist of great apes. Its host specificity makes it a suitable model for studies of primate evolution. We explored molecular diversity of T. abrassarti with regard to large geographical distribution and taxonomic diversity of its most common host, the chimpanzee. We found a very low diversification of T. abrassarti in chimpanzees across Africa. Distribution of two types of T. a…
Prevalence of muzzle-rubbing and hand-rubbing behavior in wild chimpanzees in Mahale Mountains National Park, Tanzania
Case study of a one‐sided attack by multiple troop members on a nontroop adolescent male and the death of Japanese macaques ( Macaca fuscata )
An adolescent wild male Japanese macaque ( Macaca fuscata ), following Kinkazan A troop, was attacked one‐sidedly by multiple members of the troop. The victim was identified as PI, and was estimated to be seven±one year old. The aggressive interaction was recorded by video camera until the end. Although at least 16 troop members approached PI more than once, only three males (one adult, two adolescents) of A troop attacked him. PI kept crouching …
Molecular analyses of the intestinal microbiota of chimpanzees in the wild and in captivity
Little information is available regarding the intestinal bacteria of chimpanzees in the wild, due to the technical difficulties of studying intestinal bacteria in the field. In this study, molecular‐based bacterial analyses were performed to overcome this difficulty because polymerase chain reaction (PCR)‐based methods, such as temperature gradient gel electrophoresis (TGGE) and amplified ribosomal DNA restriction analysis (ARDRA), of the bacteri…
Long-term variation in fruiting and the food habits of wild Japanese nacaques on Kinkazan Island, northern Japan
We studied the relationship between the food habits of Japanese macaques (Macaca fuscata) and the availability of nuts (Fagus crenata, Zelkova serrata, Carpinus spp., and Torreya nucifera) on Kinkazan Island, northern Japan, from 1997 to 2005 to examine the long-term variations in both food habits and availability. The food habits of the monkeys showed clear seasonal changes: the staple foods were woody leaves and flowers in spring (May and June)…
Nutritional significance of the selective ingestion of Albizia zygia gum exudate by wild chimpanzees in Bossou, Guinea
The selective ingestion of plant gum exudates by chimpanzees has been frequently observed at various study sites. At Bossou, Guinea, chimpanzees also frequently ingest Albizia zygia gum exudate. A functional explanation for this behavior is lacking, so we evaluated its possible contribution of energy in the form of short‐chain fatty acids (SCFA) as well as minerals. An in vitro fermentation study of A. zygia gum using the fecal bacteria of a Boss…
Mitochondrial DNA genealogy of chimpanzees in the Nimba mountains and Bossou, West Africa
The chimpanzee populations of the Bossou and Nimba regions in West Africa were genetically surveyed to 1) reveal the genetic relationship between the Bossou and Nimba populations, and 2) elucidate the evolutionary relationship between the Bossou‐Nimba and other West African populations. The chimpanzee group at Bossou is characterized by its small population size, no evidence of contact with neighboring populations, and no female immigration. It i…
Hormone profiles and reproductive characteristics in wild female Japanese macaques ( Macaca fuscata )
In this study we investigated the reproductive characteristics of wild female Japanese macaques ( Macaca fuscata fuscata ) in 2 nonconsecutive years using noninvasive methods to monitor physiological events. We detected ovulation dates and ascertained conceptions from fecal hormone profiles. First ovulations occurred from middle October to early November in 1997, and from middle to late November in 1999. Most females conceived during their first …
Capturing and toying with hyraxes (Dendrohyrax dorsalis) by wild chimpanzees (Pan troglodytes) at Bossou, Guinea
Chimpanzees (Pan troglodytes verus) were observed capturing and toying with western tree hyraxes (Dendrohyrax dorsalis, Order Hyracoidea) at Bossou, Guinea. An adolescent female carried one hyrax for 15 hr, slept with it in her nest, and groomed it. The captive was not consumed. Nearby adults ignored the hyrax. In another case, two adolescent males timidly inspected a small hyrax. These observations indicate that the chimpanzees at Bossou do not …
Measurement of urinary and fecal steroid metabolites during the ovarian cycle in captive and wild Japanese macaques, Macaca fuscata
We measured the concentration of steroid hormones from urine, feces, and blood samples of two captive Japanese macaques, Macaca fuscata , during nonconceptive ovarian cycles to compare the patterns of the excreted steroids with those of circulating steroids. Urine and feces were analyzed for estrone conjugates (E 1 C) and pregnanediol‐3‐glucronide (PdG) using enzyme immunoassays (EIAs), while plasma was analyzed for estradiol‐17β(E 2 ), progester…
Hormonal Correlates of Maternal Style in Captive Macaques (Macaca fuscata and M. mulatta)
Male genetic structure and paternity in western lowland gorillas ( Gorilla gorilla gorilla )
The male dispersal patterns of western lowland gorillas (WLGs, Gorilla gorilla gorilla ) are not well understood. To determine whether most silverbacks stay close to their relatives, we analyzed autosomal and Y‐chromosomal microsatellites (STRs) in wild WLGs at Moukalaba, Gabon. We obtained STR genotypes for 38 individuals, including eight silverbacks and 12 adult females in an approximately 40 km 2 area. Among them, 20 individuals were members o…
Hormonal Correlates of Maternal Style in Captive Macaques (Macaca fuscata and M. mulatta)
Capturing and toying with hyraxes (Dendrohyrax dorsalis) by wild chimpanzees (Pan troglodytes) at Bossou, Guinea
Chimpanzees (Pan troglodytes verus) were observed capturing and toying with western tree hyraxes (Dendrohyrax dorsalis, Order Hyracoidea) at Bossou, Guinea. An adolescent female carried one hyrax for 15 hr, slept with it in her nest, and groomed it. The captive was not consumed. Nearby adults ignored the hyrax. In another case, two adolescent males timidly inspected a small hyrax. These observations indicate that the chimpanzees at Bossou do not …
Measurement of urinary and fecal steroid metabolites during the ovarian cycle in captive and wild Japanese macaques, Macaca fuscata
We measured the concentration of steroid hormones from urine, feces, and blood samples of two captive Japanese macaques, Macaca fuscata , during nonconceptive ovarian cycles to compare the patterns of the excreted steroids with those of circulating steroids. Urine and feces were analyzed for estrone conjugates (E 1 C) and pregnanediol‐3‐glucronide (PdG) using enzyme immunoassays (EIAs), while plasma was analyzed for estradiol‐17β(E 2 ), progester…
Hormonal Correlates of Maternal Style in Captive Macaques (Macaca fuscata and M. mulatta)
Mitochondrial DNA genealogy of chimpanzees in the Nimba mountains and Bossou, West Africa
The chimpanzee populations of the Bossou and Nimba regions in West Africa were genetically surveyed to 1) reveal the genetic relationship between the Bossou and Nimba populations, and 2) elucidate the evolutionary relationship between the Bossou‐Nimba and other West African populations. The chimpanzee group at Bossou is characterized by its small population size, no evidence of contact with neighboring populations, and no female immigration. It i…
Hormone profiles and reproductive characteristics in wild female Japanese macaques ( Macaca fuscata )
In this study we investigated the reproductive characteristics of wild female Japanese macaques ( Macaca fuscata fuscata ) in 2 nonconsecutive years using noninvasive methods to monitor physiological events. We detected ovulation dates and ascertained conceptions from fecal hormone profiles. First ovulations occurred from middle October to early November in 1997, and from middle to late November in 1999. Most females conceived during their first …
Long-term variation in fruiting and the food habits of wild Japanese nacaques on Kinkazan Island, northern Japan
We studied the relationship between the food habits of Japanese macaques (Macaca fuscata) and the availability of nuts (Fagus crenata, Zelkova serrata, Carpinus spp., and Torreya nucifera) on Kinkazan Island, northern Japan, from 1997 to 2005 to examine the long-term variations in both food habits and availability. The food habits of the monkeys showed clear seasonal changes: the staple foods were woody leaves and flowers in spring (May and June)…
Nutritional significance of the selective ingestion of Albizia zygia gum exudate by wild chimpanzees in Bossou, Guinea
The selective ingestion of plant gum exudates by chimpanzees has been frequently observed at various study sites. At Bossou, Guinea, chimpanzees also frequently ingest Albizia zygia gum exudate. A functional explanation for this behavior is lacking, so we evaluated its possible contribution of energy in the form of short‐chain fatty acids (SCFA) as well as minerals. An in vitro fermentation study of A. zygia gum using the fecal bacteria of a Boss…
Molecular analyses of the intestinal microbiota of chimpanzees in the wild and in captivity
Little information is available regarding the intestinal bacteria of chimpanzees in the wild, due to the technical difficulties of studying intestinal bacteria in the field. In this study, molecular‐based bacterial analyses were performed to overcome this difficulty because polymerase chain reaction (PCR)‐based methods, such as temperature gradient gel electrophoresis (TGGE) and amplified ribosomal DNA restriction analysis (ARDRA), of the bacteri…
Prevalence of muzzle-rubbing and hand-rubbing behavior in wild chimpanzees in Mahale Mountains National Park, Tanzania
Case study of a one‐sided attack by multiple troop members on a nontroop adolescent male and the death of Japanese macaques ( Macaca fuscata )
An adolescent wild male Japanese macaque ( Macaca fuscata ), following Kinkazan A troop, was attacked one‐sidedly by multiple members of the troop. The victim was identified as PI, and was estimated to be seven±one year old. The aggressive interaction was recorded by video camera until the end. Although at least 16 troop members approached PI more than once, only three males (one adult, two adolescents) of A troop attacked him. PI kept crouching …
Molecular diversity of entodiniomorphid ciliate Troglodytella abrassarti and its coevolution with chimpanzees
The entodiniomorphid ciliate Troglodytella abrassarti is a colonic mutualist of great apes. Its host specificity makes it a suitable model for studies of primate evolution. We explored molecular diversity of T. abrassarti with regard to large geographical distribution and taxonomic diversity of its most common host, the chimpanzee. We found a very low diversification of T. abrassarti in chimpanzees across Africa. Distribution of two types of T. a…
Ranging behavior of Mahale chimpanzees
Male genetic structure and paternity in western lowland gorillas ( Gorilla gorilla gorilla )
The male dispersal patterns of western lowland gorillas (WLGs, Gorilla gorilla gorilla ) are not well understood. To determine whether most silverbacks stay close to their relatives, we analyzed autosomal and Y‐chromosomal microsatellites (STRs) in wild WLGs at Moukalaba, Gabon. We obtained STR genotypes for 38 individuals, including eight silverbacks and 12 adult females in an approximately 40 km 2 area. Among them, 20 individuals were members o…
The Submission of a Request to Futtsu City Regarding the Reconstruction of Takagoyama Nature Zoo
Symposium report
11)
Diet‐related factors strongly shaped the gut microbiota of Japanese macaques
Although knowledge of the functions of the gut microbiome has increased greatly over the past few decades, our understanding of the mechanisms governing its ecology and evolution remains obscure. While host genetic distance is a strong predictor of the gut microbiome in large‐scale studies and captive settings, its influence has not always been evident at finer taxonomic scales, especially when considering among the recently diverged animals in n…
Biology (14 obras) · Primate Behavior and Ecology (11 obras) · Zoology (9 obras) · Animal Behavior and Reproduction (7 obras) · Geography (7 obras) · Demography (5 obras) · Evolutionary biology (5 obras) · Animal Vocal Communication and Behavior (4 obras) · Ecology (4 obras) · Medicine (4 obras)