Infestation and distribution of mites on the Yunnan red-backed vole (Eothenomys miletus) in Yunnan Province of southwest China between 2001 and 2015

Xiang, Rong; Guo, Xian‐Guo; Ren, Tian-Guang; Zhao, Cheng-Fu; Fan, Rong; Zhang, Zhiwei; Mao, Ke-Yu; Peng, Pei‐Ying; Huang, Xiaobin; Qian, Ti-Jun

doi:10.1007/s11756-021-00884-w

Cited by 7 publications

(3 citation statements)

References 40 publications

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“…Some previous studies showed that the species diversity of lizards decreases with increasing elevation and it peaks at middle elevations [ 65 ]. The highest species diversity of chigger mites also occurred in the intermediate altitude regions (2000–2500 m and 2000–3000 m) [ 41 , 66 , 67 ]. In this study, species richness and β diversity are used to analyze the variation of gamasid mite species diversity along altitudinal gradients.…”

Section: Discussionmentioning

confidence: 99%

Preliminary Study on Species Diversity and Community Characteristics of Gamasid Mites on Small Mammals in Three Parallel Rivers Area of China

Zhou

Guo

Song

et al. 2022

Animals

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(1) Background: Gamasid mites are a large group of arthropods, and some of them are of medical importance. Besides directly biting humans and causing dermatitis, some gamasid mites are the vector of rickettsialpox and potential vector of hemorrhagic fever with renal syndrome (HFRS). The Three Parallel Rivers Area of China is one of the hotspots of biodiversity research in the world, with complicated topographic landforms, different types of vegetation, special elevation gradients and high biodiversity. (2) Methods: Species richness (S): the Shannon–Wiener diversity index (H), Simpson dominance index (D) and Pielou evenness index (E) were used to analyze the basic community structure. The β diversity (Cody index) was used to reflect the diversity difference between any two adjacent elevation gradients. The method based on Preston’s lognormal model for species abundance distribution was used to estimate the total number of gamasid mite species. (3) Results: A total of 3830 small mammal hosts captured from the nine survey sites were identified as 44 species, 27 genera and nine families in five orders. Apodemus chevrieri, Eothenomys miletus and A. draco were the dominant host species with a total constituent ratio Cr = 52.037%. From the body surface of the hosts, 26,048 gamasid mites were collected and identified as 10 families, 21 genera and 82 species (excluding 847 unidentified specimens) with high species richness (S = 82) and diversity (H = 2.33). The three dominant mite species were Dipolaelaps anourosorecis, Laelaps nuttalli and L. echidninus, with a total Cr = 64.46% (16,791/26,048). There are significant differences in the species composition, species diversity and dominant species of gamasid mites on different hosts. The species diversity of the mite community fluctuated greatly in different elevation gradients. The highest peaks of species richness and β diversity appeared at altitudes of 3000–3500 m (S = 42) and 1500–2000 m (β = 17.5), respectively. The species abundance distribution of the mites was successfully fitted by Preston’s lognormal model with S^(R)=19e−[0.22(R−0)]2 (α = 0.22, R2 = 0.9879). Based on fitting the theoretical curve by Preston’s model, the total number of gamasid mite species was estimated to be 153 species. (4) Conclusions: Gamasid mites on small mammals are abundant with complex community structures and high species diversity in the Three Parallel Rivers Area of China. There is an apparent community heterogeneity of the mites on different hosts and in different environments.

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Section: Discussionmentioning

confidence: 99%

Preliminary Study on Species Diversity and Community Characteristics of Gamasid Mites on Small Mammals in Three Parallel Rivers Area of China

Zhou

Guo

Song

et al. 2022

Animals

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“…The species and numbers of all chiggers on the body surface of each A. draco and A. ilex were counted, respectively. The constituent ratio (C r ), infestation prevalence (P M ), mean abundance (MA) and mean intensity (MI) were adopted to calculate the infestation of mice with chiggers [7,34,36].…”

Section: Infestation Statistics Analysismentioning

confidence: 99%

“…The life cycle of chigger mites is complex, with seven basic stages: the egg, deutovum (prelarva), larva, nymphochrysalis, nymph, imagochrysalis and adult (male and female). The larva (chiggers) is the only ectoparasitic stage in rodents and other animal hosts [1,6,7]. In addition to directly biting humans to cause chigger dermatitis, chiggers are the exclusive vector of scrub typhus (tsutsugamushi disease), which is the most important medical significance of the mites.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Chiggers (Acari: Trombiculidae, Leeuwenhoekiidae) on Two Sibling Mouse Species, Apodemus draco and A. ilex (Rodentia: Muridae), in Southwest China

Guo

Song

et al. 2023

Animals

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Chigger mites (Acari) are common ectoparasites on rodents, and they are the exclusive vector of scrub typhus. South China field mouse (Apodemus draco) and Lantsang field mouse (A. ilex) are two sibling rodent species. Based on field investigations in southwest China (2001–2015), this paper compared the infestation of these two mouse species with chiggers. Of 42 chigger species identified from two mouse species, 36 were found on A. draco, 11 on A. ilex and 5 common species on both mice. Jaccard similarity index (J = 0.12, J < 0.25) showed a very different species composition of chiggers on two mouse species, and some parameters of the chigger community were also different. The overall mean intensity of chiggers on A. draco (MI = 4.26) was higher than that on A. ilex (MI = 3.91, p < 0.05). The dominant chigger species on A. draco were Trombiculindus yunnanus, Leptotrombidium scutellare (a major vector species in China) and L. sinicum with a total constituent ratio Cr = 42.9% (106/247). Leptorombidium sinicum and L. scutellare independently occurred on A. draco with an association coefficient V = 0.09 (V ≈ 0). The dominant chigger species on A. ilex were L. rusticum, L. densipunctatum and L. gongshanense, with a total Cr = 58.14% (25/43). Leptorombidium rusticum and L. densipunctatum on A. ilex had a slight positive association (V = 0.49, 0.5 < V < 1). All dominant chigger species were unevenly distributed among different individuals of two mouse species. Chigger infestation showed sex bias on different sexes of two mouse species. The species abundance of the chigger community on A. draco was revealed as a log-normal distribution pattern.

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Species diversity and related ecology of chiggers on small mammals in a unique geographical area of Yunnan Province, southwest China

Guo,

Zhou,

Guo

et al. 2023

Exp Appl Acarol

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Infestation and distribution of mites on the Yunnan red-backed vole (Eothenomys miletus) in Yunnan Province of southwest China between 2001 and 2015

Cited by 7 publications

References 40 publications

Preliminary Study on Species Diversity and Community Characteristics of Gamasid Mites on Small Mammals in Three Parallel Rivers Area of China

Preliminary Study on Species Diversity and Community Characteristics of Gamasid Mites on Small Mammals in Three Parallel Rivers Area of China

Comparison of Chiggers (Acari: Trombiculidae, Leeuwenhoekiidae) on Two Sibling Mouse Species, Apodemus draco and A. ilex (Rodentia: Muridae), in Southwest China

Species diversity and related ecology of chiggers on small mammals in a unique geographical area of Yunnan Province, southwest China

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