期刊
PARASITOLOGY
卷 145, 期 12, 页码 1570-1576出版社
CAMBRIDGE UNIV PRESS
DOI: 10.1017/S0031182018000446
关键词
Cricetid; helminths; host; invasive; native; parasite; spillback; spillover; rodents
类别
资金
- Comision Nacional de Investigacion Cientifica y Tecnologica de Chile [24110058, AT-24100028]
- Fondo Nacional de Desarrollo Cientifico y Tecnologico de Chile [1070960]
In order to analyse the effect of hosts' relationships and the helminthic load on the switching of parasites between native and introduced hosts, we sampled rodents belonging to two suborders from Central Chile. We compared the number of helminthic species shared between murids (introduced) and cricetid (native, same suborder) rodents to those shared between murids and hystricomorphs (native, different suborder), and we assessed the association between parasitic presence, abundance and geographical dispersion in source hosts to the presence and abundance in recipient hosts. Introduced rodent species shared more helminth species with cricetid rodents than with non-cricetids. Presence and abundance in recipient hosts was not associated with the prevalence and mean abundance in source hosts' population. The mean abundance of parasites in source hosts throughout the territory and wider dispersion was positively associated with the likelihood of being shared with a recipient host. Closer relationships between native and introduced hosts and high parasitic abundance and dispersion could facilitate host switching of helminths between native and introduced rodents. This work provides the first documentation of the importance of parasitic abundance and dispersion on the switching of parasites between native and introduced hosts.
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