Publications by authors named "Tianmeng He"

Minerals provide micronutrients that function in various ways in the body, and they are necessary for the survival of animals. In this study, we first compared the mineral content of foods of wild Japanese macaques in lowland Yakushima with that of monkey chow used for many years to feed captive macaques and specifically formulated to obtain good health in captive macaques (National Research Council [NRC] recommendations). Second, we clarified the mineral balance in captive individuals when feeding them monkey chow to clarify the digestibility/bioavailability of the minerals.

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Achieving long-term stable deep desulfurization at room temperature and recovering high value-added sulfone products is a challenge at present. Herein, a series of catalysts [Cmim]VWOBr (CVW, 1-alkyl-3-methylimidazolium bromide tungstovanadate, n = 4, 8, 16) were presented for the room temperature catalytic oxidation of dibenzothiophene (DBT) and its derivatives. Factors affecting the reaction process, such as the amount of catalyst, oxidant, and temperature, were systematically discussed.

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Chewing is critical for herbivores to obtain nutrients. Measuring digesta particle size as the outcome of chewing can improve our understanding of the relationship between food and digestion. Previous studies of feeds of domestic animals have shown that smaller digesta particle size leads to more efficient digestion.

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Fecal particle size provides important information on the feeding and digestion of herbivores. Understanding the effects of the potential proximate determinants on fecal particle size helps us interpret this widely used measurement. In folivores, previous studies found that diet composition, dietary toughness, and age-sex-related factors, such as body size and tooth wear, influenced fecal particle size.

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Objectives: Chewing efficiency plays an important role in the survival and distribution of primates. Yet, little is known about the intra-specific variation of chewing efficiency. The purpose of this study is to report the pattern of seasonal and regional variation in chewing efficiency among Yakushima Japanese macaques (Macaca fuscata yakui).

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Article Synopsis
  • Animals in seasonal environments, like the Japanese macaque, must adjust their behavior and metabolism to cope with changing temperatures for better thermoregulation.
  • Research showed that M. fuscata had lower overall activity in winter, but temperatures didn't impact daytime activity; instead, nighttime inactivity and longer sleep increased during colder months.
  • The study found that residual energy expenditure was higher in winter due to less fat storage and lower energy needs for thermoregulation, highlighting the adaptive strategies of this primate species to seasonal climates.
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Article Synopsis
  • Accelerometers have been primarily used to study mammals and birds, with a focus on ungulates and carnivores, while research on nonhuman primates like Japanese macaques has been limited.
  • This study tested accelerometers on a male and female Japanese macaque, achieving over 90% classification accuracy when comparing accelerometer data to video observations.
  • The findings indicate that accelerometers can effectively monitor nonhuman primate activity patterns, including circadian rhythms, and highlight the advantages and limitations of using this technology in primatology research.
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