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. Author manuscript; available in PMC: 2015 Oct 28.
Published in final edited form as: J Med Entomol. 2014 Mar;51(2):342–351. doi: 10.1603/me13115

Table 1.

Summary of A. americanum collection records

Source No. original records or publications examined No. usable records No. states No. counties Span of collection years
USNTC 1,264    492   32a 236 1898–2006
NVSL 10,410    6,004   22   596 1985–2008
VectorMap 9,345    9,237   31a 296 1945–2010
Web of Science 1,384 (420b) 2,388c 31a 908 1898–2012
All sources 22,403    18,121   40a 1,300 1898–2012
a

Total includes the District of Columbia.

b

A Web of Science literature search conducted on 4 April 2013 returned 1,226 publications for the topic or title words “Amblyomma americanum” or “Lone Star tick.” When combined with publications identified using the snowball technique, a total of 1,384 publications were screened for information on field collection(s) of A. americanum: 379 of those identified in the original Web of Science search included reports of field collection(s), as did an additional 106 references identified via the snowball technique, but only 326 and 94 of these, respectively, yielded usable records.

c

Of these 1,712 were from publications identified through the original Web of Science search and 676 were from publications identified via the snowball technique.