Helminth fauna of small mammals from public parks and urban areas in Bangkok Metropolitan with emphasis on community eco
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HELMINTHOLOGY - ORIGINAL PAPER
Helminth fauna of small mammals from public parks and urban areas in Bangkok Metropolitan with emphasis on community ecology of infection in synanthropic rodents Yossapong Paladsing 1 & Kittiyaporn Boonsri 2 & Wipanont Saesim 3 & Bangon Changsap 2 & Urusa Thaenkham 1 & Nathamon Kosoltanapiwat 4 & Piengchan Sonthayanon 5 & Alexis Ribas 6 & Serge Morand 1,7 & Kittipong Chaisiri 1 Received: 6 May 2020 / Accepted: 20 September 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract In 2018, extensive field studies of diversity and prevalence of helminth infection in synanthropic rodents and non-rodent small mammals from public parks and citified areas in the Bangkok Metropolitan were conducted. Rattus rattus complex was the dominant small mammal in public parks. Of the 197 animals, 147 individuals were infected with one or more species of helminths, yielding an infection prevalence of 74.6%. Twenty-five species of helminths were recovered during necropsy. Pterygodermatites tani was the most prevalent (36.2%); other encountered species included Raillietina celebensis, Hydatigera taeniaformis (metacestode in liver tissue), Gongylonema neoplasticum and Hymenolepis diminuta. Different helminth assemblages infected three different host taxa, i.e. synanthropic Rattus spp., Tupaia belangeri (Northern treeshrew) and Suncus murinus (Asian house shrew). Nine species of possible zoonotic helminths were identified. The focus on synanthropic rats influenced the findings of helminth diversity by either host intrinsic or extrinsic factors. A significant positive correlation was found between host body mass and helminth species richness. Greater helminth species richness was found in rats from public parks compared with animals from citified areas (e.g. inside buildings or offices). Also, helminth species richness was negatively correlated with the proportion of post-flooding/rain-fed land. These results provide essential information for assessing the incidence of potential zoonotic health threats in Bangkok and updating research in parasite ecology. Keywords Helminth . Helminth species richness . Rodent . Synanthropic rats . Public park . Bangkok
Introduction Urbanisation is continuing, particularly in Asia and Africa (United Nations 2004). This process reflects an explosion of
population and the movement of people to large cities for work. Bangkok, the capital city of Thailand, is one such city, where urbanised areas have expanded and the population grew from 7.8 million to 9.6 million people between 2000
Section Editor: Elizabeth Marie Warburton Electronic supplementary material The online version of this article (https://doi.org/10.1007/s00436-020-06897-9) contains supplementary material, which is available to authorized users. * Kittipong Chaisiri [email protected] 1
Department of Helminthology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
2
Department of Science and Technology, Huachiew Chalermprakiet University, Samut Prakarn, Thailand
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