Abstract：
:A fundamental aim of parasite ecology is to understand the mechanisms behind spatial variation in diversity and structure of parasite assemblages. To understand the contribution of individual parasite species and their assemblages to spatial variation in parasite communities, we examined species contributions to beta diversity (SCBD) and local contributions to beta diversity (LCBD) of parasitic gastrointestinal helminths (nematodes and cestodes) in two closely related rodents, Rhabdomys dilectus and Rhabdomys pumilio, from 20 localities across South Africa. Although the two Rhabdomys spp. are morphologically similar, they differ substantially in body size, habitat preference, and sociality. We asked whether the variation in life history traits and infection parameters are associated with SCBD of helminths and whether variation in environmental factors, host population density, and species richness of host communities are associated with LCBD of component assemblages of helminths. We also considered spatial factors to test whether LCBD of helminth assemblages demonstrate geographic structure. We found that the contribution of helminth species parasitic in both hosts to beta diversity significantly increased with characteristic prevalence of these species, whereas mean abundance, type of life cycle, and location in the host's gut had no effect on SCBD. The LCBD of helminth assemblages showed a significant positive correlation with environmental factors in both host species. Our results suggest that predictors of variation in SCBD and LCBD may substantially differ between parasites with different infection parameters and/or parasite communities at different hierarchical scales.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Spickett A,van der Mescht L,Junker K,Krasnov BR,Haukisalmi V,Matthee Sdoi
10.1007/s00436-019-06411-wsubject
Has Abstractpub_date
2019-10-01 00:00:00pages
2863-2875issue
10eissn
0932-0113issn
1432-1955pii
10.1007/s00436-019-06411-wjournal_volume
118pub_type
杂志文章abstract：:DNA plasmid immunization is a novel approach of preventive and therapeutic vaccine. More than 100 DNA vaccines have been on preclinical or clinical phase trials, and four kinds of DNA vaccines for livestock have been approved by USDA, CFIA, and APVMA. Schistosomiasis is a worldwide parasitic disease, and vaccine immun...
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journal_title：Parasitology research
pub_type： 杂志文章
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