Seasonal abundance and activity of the tick Dermacentor everestianus (Acari: Ixodidae) in the Tibetan Plateau, China

Liu, Ming; Li, Tuo; Yang, Jia; Li, Sisi; Yu, Zhou; Liu, Jingze

doi:10.1007/s10493-020-00528-9

Cited by 5 publications

(2 citation statements)

References 31 publications

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“…Among the selected three counties, Nyêmo county has an altitude of 3800 m, which is lower compared to the altitudes of 4200 m in Damxung county and Linzhou county [ 38 ]. Moreover, Linzhou county has the highest average annual temperature at 7.5 °C, while Damxung county experiences the lowest average annual temperature at 1.3 °C, and Nyêmo county has an annual temperature of 6.7 °C [ 39 , 40 ].…”

Section: Discussionmentioning

confidence: 99%

Influence of Varied Environment Conditions on the Gut Microbiota of Yaks

Zhu,

Tian,

Cidan

et al. 2024

Animals

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Despite the crucial role of the gut microbiota in different physiological processes occurring in the animal body, reports regarding the gut microbiota of animals residing in different environmental conditions like high altitude and different climate settings are limited. The Qinghai–Tibetan Plateau is renowned for its extreme climatic conditions that provide an ideal environment for exploring the effects of high altitude and temperature on the microbiota of animals. Yaks have unique oxygen delivery systems and genes related to hypoxic response. Damxung, Nyêmo, and Linzhou counties in Tibet have variable altitudes and temperatures that offer distinct settings for studying yak adaptation to elevated terrains. The results of our study suggest that amplicon sequencing of V3-V4 and internal transcribed spacer 2 (ITS2) regions yielded 13,683 bacterial and 1912 fungal amplicon sequence variants (ASVs). Alpha and beta diversity indicated distinct microbial structures. Dominant bacterial phyla were Firmicutes, Bacteroidota, and Actinobacteriota. Genera UCG-005, Christensenellaceae_R-7_group, and Rikenellaceae_RC9_gut_group were dominant in confined yaks living in Damxung county (DXS) and yaks living in Linzhou county (LZS), whereas UCG-005 prevailed in confined yaks living in Nyêmo county (NMS). The linear discriminant analysis effect size (LEfSe) analysis highlighted genus-level differences. Meta-stat analysis revealed significant shifts in bacterial and fungal community composition in yaks at different high altitudes and temperatures. Bacterial taxonomic analysis revealed that two phyla and 32 genera differed significantly (p < 0.05). Fungal taxonomic analysis revealed that three phyla and four genera differed significantly (p < 0.05). Functional predictions indicated altered metabolic functions, especially in the digestive system of yaks living in NMS. This study reveals significant shifts in yak gut microbiota in response to varying environmental factors, such as altitude and temperature, shedding light on previously unexplored aspects of yak physiology in extreme environments.

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Section: Discussionmentioning

confidence: 99%

Influence of Varied Environment Conditions on the Gut Microbiota of Yaks

Zhu,

Tian,

Cidan

et al. 2024

Animals

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“…Nevertheless, some Dermacentor species show preference towards long‐haired parts of the animal body (e.g., mane, tail). On large mammal hosts, the preferred areas for most tick species often correspond to the external genitals, and groin regions, as well as the face and neck (Asmaa et al., 2014; Kar et al., 2013; Liu et al., 2020; Wilhelmsson et al., 2013; Yu et al., 2011).…”

Section: Discussionmentioning

confidence: 99%

Anti‐parasitic function of tree‐rubbing behaviour in brown bears suggested by an in vitro test on a generalist ectoparasite

et al. 2023

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Rubbing against various objects or self-anointing with pungent substances are behaviours observed in many mammal species. The brown bear (Ursus arctos) is a non-territorial species that rubs against trees with the main purpose being intraspecific communication. In addition, some odorous substances are known for eliciting rubbing behaviour and hence are used to lure bears to trees in studies relying on non-invasive hair collection. Tree-rubbing is often accompanied by clawing and debarking which release tree resin that impregnates the fur and can potentially deter ectoparasites. Here, we present a study aiming to determine whether ticks, being widely spread and an important vector of pathogens, are repelled by resin products known to attract bears and elicit rubbing behaviour, namely turpentine and beech tar. Dermacentor reticulatus ticks were offered a binary microhabitat choice by placing them in the middle of individual horizontal tubes with tested substances placed on filter paper at one end, and distilled water as a control (neutral) substance at the other. Their behaviour was recorded for three minutes. Ticks consistently touched the neutral end of the tube while avoiding treated ones. Overall, ticks remained at greater distances from treatments than from water. A fitted logarithmic regression showed ticks did not spend more than seconds at a treated side, supporting our prediction that ticks are repelled by turpentine and beech tar. Parasite repellency may bring a further advantage in rubbing behaviour trade-offs, compensating some energetical costs, and adds a trait to the behaviour important in seemingly divergent contexts of intraspecific communication and defense against ectoparasites.

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Hard Tick Species Parasitism Levels in Domestic Ruminants with Their Distribution and Role as Vectors: A Detailed Global Meta-analysis and Systematic Review

Nasirian

2023

Acta Parasit.

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Seasonal abundance and activity of the tick Dermacentor everestianus (Acari: Ixodidae) in the Tibetan Plateau, China

Cited by 5 publications

References 31 publications

Influence of Varied Environment Conditions on the Gut Microbiota of Yaks

Influence of Varied Environment Conditions on the Gut Microbiota of Yaks

Anti‐parasitic function of tree‐rubbing behaviour in brown bears suggested by an in vitro test on a generalist ectoparasite

Hard Tick Species Parasitism Levels in Domestic Ruminants with Their Distribution and Role as Vectors: A Detailed Global Meta-analysis and Systematic Review

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