Abstract：
:Many factors contribute to parasites varying in host specificity and distribution among potential hosts. Metagonimoides oregonensis is a digenetic trematode that uses stream-dwelling plethodontid salamanders as second intermediate hosts in the Eastern US. We completed a field survey to identify which stream salamander species, at a regional level, are most likely to be important for transmission to raccoon definitive hosts. We surveyed six plethodontid species (N = 289 salamanders) from 23 Appalachian headwater sites in North Carolina: Desmognathus quadramaculatus (n = 69), Eurycea wilderae (n = 160), Desmognathus ocoee (n = 31), Desmognathus monticola (n = 3), Eurycea guttolineata (n = 7), and Gyrinophilus porphyriticus (n = 19). We found infection in all species except D. monticola. Further analysis focused on comparing infection in the two most abundant species, D. quadramaculatus and E. wilderae. We found that D. quadramaculatus had significantly higher infection prevalence and intensity, probably due to a longer aquatic larval period and larger body sizes and thus greater cumulative exposure to the parasite.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Wyderko JA,Benfield EF,Maerz JC,Cecala KC,Belden LKdoi
10.1007/s00436-015-4550-8subject
Has Abstractpub_date
2015-08-01 00:00:00pages
3159-65issue
8eissn
0932-0113issn
1432-1955journal_volume
114pub_type
杂志文章abstract：:The history of European bison Bison bonasus Linnaeus, 1758 has been stormy since its extinction in the wild after the First World War. Due to the fact that the species was restored from just 12 founders, further expansion has suffered from low genetic variability, rendering the bison vulnerable to various pathogens du...
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