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. 2017 Jun 22;14(3):451–462. doi: 10.1007/s10393-017-1236-y

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© The Author(s) 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Map of the study area: Bulger Grazing Allotment (BGA), Meadow Springs Ranch (MSR), Soapstone Natural Area (SNA) study blocks in Larimer County Colorado. Black-tailed prairie dog (Cynomys ludovicianus) colonies are shown in their largest extent during 2012–2015. Prairie dog colonies impacted by plague during the study are tan. Areas treated with insecticidal dust (yellow, study plots are crosshatched), vaccine baits (purple) and placebo baits (green) are shown. The northeasterly spread of epizootic plague during the study is represented by red lines and arrows with the year of colony collapse shown.