Article
Zoology
Yu Kaigaishi, Shinya Yamamoto
Summary: The paper reports a new case of stillbirth and maternal cannibalism in a group of Japanese macaques. The researchers compared this case with previously reported cases in Old World monkeys and discussed the possible link between stillbirth, maternal care, and cannibalism.
Article
Zoology
Alba Castellano-Navarro, Victor Beltran Frances, Anna Albiach-Serrano, Andrew J. J. MacIntosh, Risma Illa Maulany, Putu O. Ngakan, Katja Liebal, Federica Amici
Summary: This study aimed to assess how dominance style predicts changes in maternal behavior through offspring development, and the link between maternal behavior and offspring behavior. The results showed that different species of macaques exhibited variations in maternal behavior, which may play an important role in shaping offspring's behavioral development.
AMERICAN JOURNAL OF PRIMATOLOGY
(2023)
Article
Peripheral Vascular Disease
Angela M. Malek, Kelly J. Hunt, Tanya N. Turan, Julio Mateus, Daniel T. Lackland, Anika Lucas, Dulaney A. Wilson
Summary: This study examined the risk of maternal kidney disease after a hypertensive condition during pregnancy, with consideration of racial/ethnic differences. The results showed that women with hypertensive disorders of pregnancy had a higher risk of developing kidney disease 5 years after delivery, and the risk was higher in non-Hispanic Black women compared to non-Hispanic White women.
Article
Multidisciplinary Sciences
Alexander M. Milner, Susanna A. Wood, Catherine Docherty, Laura Biessy, Masaki Takenaka, Koji Tojo
Summary: Japanese macaques inhabit one of the coldest areas in the world, facing food shortages in winter, but they can improve their survival by feeding on freshwater biota and other food sources.
SCIENTIFIC REPORTS
(2021)
Article
Ecology
Ran Yue, Huijuan Chen, Xiaojuan Xu, Yingna Xia, Yu Sun, Mengyi Xia, Dongpo Xia, Binghua Sun
Summary: The gut mycobiome of both mother and infant Tibetan macaques changed significantly during weaning, with a stronger effect on the infant's gut mycobiome. The relative abundance of plant pathogens increased significantly in the post-weaning period for infants.
ECOLOGY AND EVOLUTION
(2023)
Article
Zoology
Masayuki Nakamichi, Masataka Ueno, Kazunori Yamada
Summary: Among the Macaca species, adult male Japanese macaques are the least likely to engage in male care, but in some cases, they do provide care for infants, particularly those of low-ranking matrilineally unrelated mothers. Male care was usually observed between January and March, with most cases ceasing within 6 months. Grooming interactions between males and infant mothers seemed to play a role in the onset and continuation of male care in some instances.
Article
Zoology
Kylen N. Gartland, Nichole Biggs, Caitlin M. Shreeve, Frances J. White
Summary: In Japanese macaques, dominance and female choice play different roles in male reproductive success, with highly aggressive males attaining high rank but only limited reproductive success. Females in this population seem to prefer males who are affiliative and less aggressive, indicating the operation of female choice.
AMERICAN JOURNAL OF PRIMATOLOGY
(2021)
Article
Zoology
Sarah E. Turner, Linda M. Fedigan, Megan M. Joyce, H. Damon Matthews, Robert J. Moriarity, Hisami Nobuhara, Toshikazu Nobuhara, Brogan M. Stewart, Keiko Shimizu
Summary: A study found that congenital limb malformations in Japanese macaque infants were significantly correlated with higher fGC levels in their mothers, while physical impairment in adult females was not significantly related to fGC levels. Higher dominance rank was associated with lower fGC levels.
AMERICAN JOURNAL OF PRIMATOLOGY
(2023)
Article
Zoology
Megan M. Joyce, Julie A. Teichroeb, Yu Kaigaishi, Brogan M. Stewart, Kazunori Yamada, Sarah E. Turner
Summary: This study investigated the use of heuristics in foraging route choices among Japanese monkeys. The results showed that the monkeys often used heuristics and selected optimal routes. Contextual factors such as age, sex, and social variables also influenced their decision-making.
Article
Zoology
Nelson Broche Jr, Keiko Mouri, Takafumi Suzumura, Michael A. Huffman
Summary: Monitoring short-term changes in endocrine responses in wild non-human primates can be challenging. This study developed a non-invasive method for collecting saliva and examined its applicability in a group of free-ranging Japanese macaques. The results showed that saliva can be repeatedly sampled to investigate short-term changes in stress markers in these primates.
Article
Zoology
Roy Hammer, Mathieu S. Stribos, Pia M. Boehm, Katharina E. Pink, Julia Herzele, Bernard Wallner, Michael A. Huffman, Jorg J. M. Massen, Lena S. Pfluger
Summary: The study presents a new framework for classifying social groups during the process of fission in Japanese macaques. The framework uses quantifiable behavioral variables and statistical analyses to assign individuals to different groups. The results demonstrate the validity of the framework in studying social dynamics during fission and suggest its potential application in other primate societies.
AMERICAN JOURNAL OF PRIMATOLOGY
(2023)
Article
Medicine, General & Internal
Shinsuke Tokoro, Shigeki Koshida, Shunichiro Tsuji, Daisuke Katsura, Tetsuo Ono, Takashi Murakami, Kentaro Takahashi
Summary: This study explores the association between FGR leading to stillbirth and maternal perception of decreased fetal movement. The findings suggest that women with FGR are less likely to seek medical attention due to decreased fetal movement compared to those without FGR. Pregnant women with severe FGR have more difficulty perceiving decreased fetal movements. Healthcare providers should closely monitor FGR pregnancies and instruct pregnant women to be aware of decreased fetal movement.
TOHOKU JOURNAL OF EXPERIMENTAL MEDICINE
(2022)
Article
Environmental Sciences
Tadao Ooka, Sayaka Horiuchi, Ryoji Shinohara, Reiji Kojima, Yuka Akiyama, Kunio Miyake, Sanae Otawa, Hiroshi Yokomichi, Zentaro Yamagata
Summary: This study found that frequent use of hair dye during pregnancy may have severe adverse effects on the fetus, especially with occupational use exceeding once a week. Therefore, it is recommended for pregnant women, especially hairdressers, to reduce the continuous use of hair dye.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2021)
Article
Zoology
Lena S. Pflueger, Katharina E. Pink, Bernard Wallner, Claudia Radler, Markus Dorner, Michael A. Huffman
Summary: Demographic studies on a translocated group of Japanese macaques in Austria showed successful adaptation, consistent reproductive patterns with populations in Japan and other countries, high female life expectancy limited by birth control, a similar number of old and juvenile individuals, and potential social dynamics influenced by males unable to emigrate from their natal group.
Article
Zoology
Hiroto Enari, Haruka S. Enari
Summary: The study examines the effects of herbivory by Japanese macaques on tree species and succession patterns in cool-temperate forests with heavy snow. Simulated herbivory showed limited mortality but delayed growth or weakening of tree architecture, while natural herbivory impact tree succession patterns. Bark/bud herbivory did not reduce diversity or biomass, but cumulative impacts influenced availability of preferred foods for macaques due to heavy snow conditions.
AMERICAN JOURNAL OF PRIMATOLOGY
(2021)