論文 - 松本　晶子

Effects of belief in genetic relatedness on resemblance judgements by Japanese raters

R Oda, A Matsumoto-Oda, O Kurashima

EVOLUTION AND HUMAN BEHAVIOR ( ELSEVIER SCIENCE INC )  26 ( 5 ) 441 - 450   2005年09月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

　概要を見る

Kinship is a key element in the recognition of human genetic relatedness. People use phenotype matching, especially resemblance with respect to facial features, to recognize kin. Bressan and Dal Martello (2002) assessed the effects of actual and assumed genetic relatedness on resemblance ratings made by Italian adults. We replicated their experiment using Japanese individuals as our stimuli and raters. To further assess the processes underlying resemblance ratings, we also compared reaction times. As in previous research, belief in genetic relatedness strongly affected resemblance ratings, but the direction of the cognitive bias was different. Analysis of reaction times indicated that participants took shorter time to assess the resemblance of unrelated pair members than related ones. (c) 2005 Elsevier Inc. All rights reserved.

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Proximity and estrous synchrony in Mahale chimpanzees.

Matsumoto-Oda A, Kasuya E

American journal of primatology ( WILEY-LISS )  66 ( 2 ) 159 - 66   2005年06月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Since McClintock [Nature 229:244-255, 1971] first reported menstrual. synchrony in women, a number of studies have reported similar phenomena. Many researchers have suggested that one of the proximate factors leading to synchrony is spatial proximity among females (e.g., close friends or roommates). However, most studies on menstrual synchrony have been conducted in limited spaces, and it remains to be determined whether controlled environments, such as those used in experiments, actually exist in the wild. In this study, we analyzed the relationship between proximity and estrous synchrony using data from wild female chimpanzees at Mahale, Tanzania. In the cycling females, we observed two pairs that spent a large amount of time together. We compared the estrous synchrony indices (ESIs) between these two pairs and the other females. Our results showed that the ESIs of the high-proximity pairs did not differ from those of other pairs. Am. J. Primatol. 66:159-166, 2005. (c) 2005 Wiley-Liss, Inc.

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“Intentional” control of sound production found in leaf-clipping display of Mahale chimpanzees.

Matsumoto-Oda A, Tomonaga M

J Ethol   23 ( 2 ) 109 - 112   2005年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Extraordinarily low bone mineral density in an old female chimpanzee (Pan troglodytes schweinfurthii) from the Mahale Mountains National Park.

Gunji H, Hosaka K, Huffman MA, Kawanaka K, Matsumoto-Oda A, Hamada Y, Nishida T

Primates; journal of primatology ( SPRINGER-VERLAG TOKYO )  44 ( 2 ) 145 - 9   2003年04月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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We examined bone mineral density (BMD) of the femoral neck and lumbar vertebrae of four chimpanzee skeletons from Mahale Mountains National Park, Tanzania, and four captive ones, with a dual energy X-ray absorptiometer. The BMD of Wansombo, an old female chimpanzee from Mahale, was remarkably lower than the mean of the other six younger adult female chimpanzees and categorized as osteoporosis. Posture, locomotion, and trunk-sacral anatomy of chimpanzees may have prevented fractures in Wansombo, whose BMD was below human osteoporosis criteria.

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Demography, female life history, and reproductive profiles among the chimpanzees of Mahale.

Nishida T, Corp N, Hamai M, Hasegawa T, Hiraiwa-Hasegawa M, Hosaka K, Hunt KD, Itoh N, Kawanaka K, Matsumoto-Oda A, Mitani JC, Nakamura M, Norikoshi K, Sakamaki T, Turner L, Uehara S, Zamma K

American journal of primatology ( WILEY-LISS )  59 ( 3 ) 99 - 121   2003年03月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Demography provides critical data to increase our understanding of the evolution, ecology, and conservation of primate populations. The chimpanzees of the Mahale Mountains National Park, Tanzania, have been studied for more than 34 yr on the basis of individual identification and standardized attendance records. From this long-term study, we derived the following demographic data: The major cause of death was disease (48%), followed by senescence (24%) and within-species aggression (16%). Fifty percent of Mahale chimpanzees died before weaning. The median ages of female life history variables were: first maximal swelling, 10.0 yr (n = 5); emigration, 11.0 yr (n = 11); and first birth, 13.1 yr (n = 5). The median period of adolescent infertility was 2.8 yr (n = 4) when calculated from the age at immigration to that at first birth. Female fecundity was highest between 20 and 35 yr of age, with an annual birth rate of 0.2. Twenty-six females that were observed from a young age (1013 yr) to death at various ages (15-40 yr) gave birth to an average of 3.9 and weaned an average of 1.4 offspring. Twenty-five females that were observed from middle age (18-33 yr) to death in older age (31-48) gave birth to an average of 2.7 and weaned an average of 2.0 offspring. The post-reproductive lifespan for female chimpanzees was defined as the number of years that passed from the year when the last offspring was born to the year when the female died, minus 5. Twenty-five percent of old females had a post-reproductive lifespan. The interbirth interval after the birth of a son ((x) over bar = 72 mo) tended to be longer than that after the birth of a daughter ((x) over bar = 66 mo). The extent of female transfer, which is a rule in chimpanzees, is influenced by the size and composition of the unit group and size of the overall local community. (C) 2003 Wiley-Liss, Inc.

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Vaginal fatty acids produced by chimpanzees during menstrual cycles.

Matsumoto-Oda A, Oda R, Hayashi Y, Murakami H, Maeda N, Kumazaki K, Shimizu K, Matsuzawa T

Folia primatologica; international journal of primatology   74 ( 2 ) 75 - 9   2003年03月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Low BMD old female chimpanzee skeleton from the Mahale Mountains National Park, Tanzania

Gunji H, Hosaka K, Huffman M, Kawanaka K, Matsumoto-Oda A, Hamada Y, Nishida T

Primates 44 (2): 145-149.     2003年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

The four chimpanzee skulls collected in the Mahale Mountains, Tanzania

D Shimizu, H Gunji, H Hashimoto, K Hosaka, MA Huffman, A Matsumoto-Oda, K Kawanaka, T Nishida

ANTHROPOLOGICAL SCIENCE ( ANTHROPOLOGICAL SOC NIPPON )  110 ( 3 ) 251 - 266   2002年07月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

　概要を見る

Morphological and osteological data taken from chimpanzee skeletal materials gathered at chimpanzee research sites are accompanied by life history data (e.g. diet, environment of habitat, sexual activity and social relationship). Unfortunately morphological and osteological studies of chimpanzee skeletal remains from long-term field research projects are rare (Yasui and Takahata, 1983, an infant of P. t. schweinfurthii from Mahale mountains National Park, Tanzania; Morbeck and Zihlman, 1989, ten individuals of P. t. schweinfurthii from Gombe National Park, Tanzania; Matsuzawa et al. 1990, a young male of P. t. verus from Bossou, Guinea). This study described basic morphological and osteological information (i.e. linear measurements of skulls and dentitions, dental wear, notable pathological traits) taken from four free-ranging chimpanzee skulls (Pan troglodytes schweinfurthii) that were collected from the Mahale Mountains National Park, Tanzania. The dental wear is then discussed in relation to the life history variables of individual chimpanzees.

Behavioral seasonality in Mahale chimpanzees.

Matsumoto-Oda A

Primates; journal of primatology   43 ( 2 ) 103 - 17   2002年04月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

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Facial resemblance of Japanese children to their parents

R Oda, A Matsumoto-Oda, O Kurashima

JOURNAL OF ETHOLOGY ( SPRINGER-VERLAG TOKYO )  20 ( 2 ) 81 - 85   2002年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

　概要を見る

Facial resemblance between parents and their children could be an indicator of genetic relationship, and selective pressure could bias the resemblance of appearance. We assessed the degree of resemblance of 38 Japanese children (3-6 years old) to each of their parents using photographs. We asked nonrelatives to assess which of the parents each child resembled, manipulating indications of the sex of the children. Variance in the degree of resemblance between the children and their fathers was very large. Although the basic facial appearance of each parent can be reflected in each child with 50% probability, the children did not equally show the facial characteristics of each parent at the individual level. The indication of sex had no significant effect on the assessment of resemblance. On the other hand, a questionnaire given to the assessors revealed that, as children, they tended to be said to resemble the opposite-sex parent. This result indicates that alleged resemblance does not reflect an actual condition but rather might have cultural meaning.

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におい信号による性的コミュニケーションの進化.

松本晶子

生物科学   54   12 - 20   2002年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

Activity budgets of wild female chimpanzees in different reproductive states

A Matsumoto-Oda, R Oda

JOURNAL OF ETHOLOGY ( JAPAN ETHOL SOC )  19 ( 1 ) 17 - 21   2001年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

　概要を見る

Activity budgets of wild female chimpanzees (Pan troglodytes schweinfurthii) when lactating were compared with those during estrus and anestrus. Five anestrous females, seven estrous females, and three lactating females in Mahale Mountains National Park, Tanzania, were the subject of focal sampling. Time spent for feeding, resting, and moving was examined. For each of these three categories of activity, there was no significant difference of time spent for each activity between lactating females and either estrous or anestrous females. The females spent about 30% of their daytime feeding, about 40% resting, and about 30% moving. One of the reasons for the lack of difference might be the type of parties that females attended when they were observed. In most cases, the females were seen in large bisexual parties. Although lactating females are expected to need more nutrition than cycling females and this might affect their activity budget, the party type they attended might also affect the budget.

Predation of mammals by the chimpanzees of the Mahale Mountains, Tanzania

K Hosaka, T Nishida, M Hamai, A Matsumoto-Oda, S Uehara

ALL APES GREAT AND SMALL, VOL 1: AFRICAN APES ( KLUWER ACADEMIC/PLENUM PUBL )    107 - 130   2001年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

チンパンジーは野生復帰できるか.

松本晶子, 小田亮

エコソフィア   7   77 - 86   2001年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

Preliminary study of feeding competition between baboons and chimpanzees in the Mahale Mountains National Park, Tanzania.

Matsumoto-Oda A, Kasagura MB

Afr Stu Monogr   21   147 - 157   2000年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

和歌山県における猿害とニホンザルの分布：目撃例からの群れ分布推定の試み.

小田亮, 松本晶子, 田代靖子, 五百部裕

霊長類研究   16   23 - 28   2000年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

マハレの野生チンパンジーにおける同種個体の死体に対する反応.

保坂和彦, 松本晶子, ハフマン・マイケル, 川中健二

霊長類研究   16   1 - 15   2000年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

Female choice in the opportunistic mating of wild chimpanzees (Pan troglodytes schweinfurthii) at Mahale

A Matsumoto-Oda

BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY ( SPRINGER VERLAG )  46 ( 4 ) 258 - 266   1999年09月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

　概要を見る

For female chimpanzees (Pan troglodytes schweinfurthii) in the Mahale Mountains National Park? Tanzania, the most common mating pattern is opportunistic. In such opportunistic matings, females copulated promiscuously but not randomly. This study describes female mate choice during 1-year observation of six females who exhibited regular genital-swelling cycles. During the study period, 169 opportunistic matings and four restrictive matings were recorded over the course of 51 days. As female estrus progressed, mating frequency and the number of adult male mating partners increased, although the number of potential mating partners did not change. Criteria of female choice examined were the direction and consent/rejection of courtship, proximity maintenance, and female grooming. Adult-male courtships were successful more often than those of adolescent males. During the earlier phase of estrus, females copulated rather promiscuously with many males. But during the later phase of estrus when the likelihood of conception is expected to be highest, they copulated repeatedly with high-ranking adult males. There was a positive correlation between female grooming frequency and mating frequency when the likelihood of conception was greatest. Female chimpanzees are thought to choose high-ranking males as fathers of their offspring. Moreover, female chimpanzees may adopt one or both of two mating strategies, i.e., a many-male strategy and a best-male strategy.

Nutritional aspects of fruit choice by chimpanzees

A Matsumoto-Oda, Y Hayashi

FOLIA PRIMATOLOGICA ( KARGER )  70 ( 3 ) 154 - 162   1999年05月 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

Mahale chimpanzees: Grouping patterns and cycling females

A Matsumoto-Oda

AMERICAN JOURNAL OF PRIMATOLOGY ( WILEY-LISS )  47 ( 3 ) 197 - 207   1999年 [ 査読有り ]

掲載種別: 研究論文（学術雑誌）

　概要を見る

The social system of chimpanzees (Pan troglodytes schweinfurthii) is characterized by the fission-fusion of social groups. Several studies have reported that females are less gregarious than males. In the current study, adult female gregariousness depended on their reproductive state. Noncycling adult females (pregnant, lactating, or post reproductive) were observed in large bisexual parties less often than cycling adult females. On the other hand, cycling adult females were observed in large bisexual parties as often as males, regardless of their estrous state. More males were in parties that included cycling adult females with maximal genital swelling (estrous females) than in parties without them. Moreover, a bisexual party including more estrous females contained more males. These results suggest that large bisexual parties of chimpanzees are constructed by a dual mechanism. First, cycling adult females are attracted to parties that consist of the top ranking male and large numbers of adult and adolescent males. Second, adult and adolescent males that did not belong to parties originally are attracted by estrous females and join them. Thus, in Mahale Mountains National Park, Tanzania, bisexual parties of chimpanzees can be characterized as "parties for reproduction." Am. J. Primatol, 47:197-207, 1999. (C) 1999 Wiley-Liss, Inc.