PMID(sorted ascending)
spatial and temporal variation in the seroprevalence of canine heartworm antigen in the island fox.island foxes (urocyon littoralis) are endemic to six of the eight california channel islands (usa). the island fox is classified as a threatened species by the state of california, and recently three of the six subspecies have experienced abrupt population declines. as part of a continuing effort to determine the cause of the declines, we tested island fox serum samples collected in 1988 (n = 176) and 1997-98 (n = 156) over the entire geographic range of the species for seroprevalence of canine ...200011085434
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