The pests of a pest: A systematic review of ectoparasitic fauna among synanthropic rodents in the 21st century with meta-analysis

Ho, Jeffery; Changbunjong, Tanasak; Weluwanarak, Thekhawet; Hussain, Sabir; Sparagano, Olivier

doi:10.1016/j.actatropica.2020.105802

Cited by 4 publications

(4 citation statements)

References 30 publications

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“…Correspondence: Zhibin Zhang, State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China. Email: zhangzb@ioz.ac.cn conservation (Jones et al 2016), and human health (Ho et al 2021). Several abiotic, biotic, and anthropogenic factors affect the spatiotemporal abundance of rodents (Singleton et al 2010;Bai et al 2022).…”

Section: Biodiversitymentioning

confidence: 99%

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Antifertility effects of EP‐1 (quinestrol and levonorgestrel) on Pacific rats (Rattus exulans)

LIU,

TU,

LIU

et al. 2023

Integr. Zool.

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Pest rodents pose a serious threat to island biodiversity. Fertility control could be an alternative approach to control the impact of rodents on these islands. In this study, we examined the antifertility effects of EP‐1 baits containing quinestrol (E) and levonorgestrel (P) using a dose of 50 ppm E and P at three different ratios (E:P ratio = 1:2, 1:1, and 2:1) on Pacific rats (Rattus exulans) in the Xisha Islands, Hainan, China. Compared to the control group, all animals in EP‐1 treatment groups showed significantly decreased food intake and body weight. In treated males, there were obvious abnormalities in testis structure and a significant decrease of relative seminal vesicle weight, but no significant effect on relative uterine and ovarian weights (g kg−1 body weight), or ovarian structure in females. Adding 8% sucrose to the original 50‐ppm baits (E:P ratio = 1:1) significantly increased bait palatability for males and females. This dose induced uterine edema and abnormalities of ovarian structure in females but had no significant negative effect on the relative testis, epididymis, and seminal vesicle weights (g kg−1 body weight) or sperm density in males. In summary, 50‐ppm EP‐1 (1:1) baits have the potential to disrupt the fertility of females, and 8% sucrose addition to the EP‐1 baits (E:P ratio = 1:1) could improve bait palatability. This dose disrupted the testis structure in males. Future studies are needed to improve bait acceptance and assess the antifertility effects of EP‐1 (1:1) on Pacific rats in captive breeding trials and under field conditions.

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Section: Biodiversitymentioning

confidence: 99%

“…2016), and human health (Ho et al. 2021). Several abiotic, biotic, and anthropogenic factors affect the spatiotemporal abundance of rodents (Singleton et al.…”

Section: Introductionmentioning

confidence: 99%

Antifertility effects of EP‐1 (quinestrol and levonorgestrel) on Pacific rats (Rattus exulans)

LIU,

TU,

LIU

et al. 2023

Integr. Zool.

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“…Variation in rodent abundance not only affects the ecosystem services they perform but also impacts human well‐being, e.g., by acting as disease vectors. This is because rodents are some of the preferred hosts for ectoparasites, such as fleas, ticks, and mites (Dáttilo et al., 2020; Foley et al., 2016; Jayashankar et al., 2016; Mihalca & Sándor, 2013), which are the intermediate hosts for many zoonotic diseases, including viral encephalitis, the plague, Q fever, Lyme disease, and allergic reactions such as dermatitis (Baneth, 2014; Foley et al., 2016; Herrera‐Mares et al., 2022; Ho et al., 2021; Hofmeester et al., 2016; Meerburg et al., 2009). Therefore, understanding how anthropogenic disturbance influences rodent–ectoparasite interactions can inform the management of local ecosystems and public health risks.…”

Section: Introductionmentioning

confidence: 99%

“…As an example, agricultural crops increase food availability, which in turn can favour an increase in the abundance of pest species (Munawar et al., 2024; Ruscoe et al., 2022). There is often a high prevalence of ectoparasites (i.e., the percentage of rodents carrying ectoparasites) in rodent populations in fragmented and disturbed forests (Ho et al., 2021). Typically, in disturbed forests with low canopy cover, the understorey temperature is higher than in closed‐canopy forests (Nowakowski et al., 2018).…”

Section: Introductionmentioning

confidence: 99%

Host sweet host: Rodent communities support similar ectoparasite diversity regardless of anthropogenic disturbance

Gil‐Fernández,

Vargas‐Sandoval,

Delfín‐Alfonso

et al. 2024

J Applied Entomology

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Rodents are important hosts for ectoparasites, such as fleas, ticks, and mites, which means they are also important intermediate hosts for many zoonotic diseases. As anthropogenic environments bring humans and rodents into closer contact, an understanding of host–ectoparasite ecology is essential to predict and manage disease spillover risks. We aimed to understand how disturbances in vegetation cover affect rodent ectoparasite diversity, prevalence, spatial segregation, host (i.e., sex, genus, size, and habitat domain), and environmental (i.e., vegetation structure, forest cover, and rainfall) variables in the state of Michoacan, Mexico. We investigated these relationships by trapping rodents in five paired disturbed (reduced vegetation cover and regular human activities) and undisturbed (no reduction in vegetation cover) sites in the summer and autumn of 2022. From 110 trapped rodents, we collected 138 ectoparasites on 38 individuals. We found no difference in rodent diversity, ectoparasite diversity, or ectoparasite prevalence between disturbed and undisturbed sites. However, arboreal and male rodents had a higher probability of carrying ectoparasites than ground‐dwelling and female rodents. Rodents with ectoparasites were not spatially clustered; rather, they were randomly distributed across trapping grids. We also identified two rodent genera (Rattus and Sigmodon) that carry ectoparasites of medical importance and that are in close contact with humans. Our results highlight the necessity of constant monitoring of rodents, ectoparasites, and their associated transmittable diseases. Assessing these interactions and how they are affected by anthropogenic disturbance could better inform management decisions and support the need for rodent conservation programmes in the area.

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Synthesis of highly efficient non-lethal repellent for rats from natural capsaicin and its influence on properties of EVA

Wang

Wei

et al. 2021

Polymer Testing

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The pests of a pest: A systematic review of ectoparasitic fauna among synanthropic rodents in the 21st century with meta-analysis

Cited by 4 publications

References 30 publications

Antifertility effects of EP‐1 (quinestrol and levonorgestrel) on Pacific rats (Rattus exulans)

Antifertility effects of EP‐1 (quinestrol and levonorgestrel) on Pacific rats (Rattus exulans)

Host sweet host: Rodent communities support similar ectoparasite diversity regardless of anthropogenic disturbance

Synthesis of highly efficient non-lethal repellent for rats from natural capsaicin and its influence on properties of EVA

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