Table 1.
Summary Information About Study Blocks and Plots, Treatment Application, Prior Plague Management History, Bait Uptake and Plague Detection During 2013–2015 Study Period.
| Block Treatment plot |
Month treated | Plot/colony size (ha) | Prior dusting history | Bait uptakea (%) (2013, ’14, ’15) | Plague activity first detected (Mo–Yr) | ||
|---|---|---|---|---|---|---|---|
| Burrow flea | On-host flea | Carcass | |||||
| Bulger Grazing Allotment (BGA) | |||||||
| Dust | Mar/Apr | Plot/16 | Mar/April 2010–15 | nb | None | None | None |
| Vaccine | Aug | Colony/16 | None | 55, 0, 33 | Aug 2013 | Aug 2013 | Aug 2013 |
| Placebo | Aug | Colony/16 | None | 63, 33, 73 | Mar 2014 | Oct 2013 | None |
| Meadow Springs Ranch (MSR) | |||||||
| Dust | Mar/Apr | Plot/24 | Mar/April 2010–15 | nb | None | None | None |
| Vaccine | Aug | Colony/53c | Sep 2011, May 2012 | 94, 93, 91 | Apr 2014 | Sep 2013 | Aug 2013 |
| Placebo | Aug | Colony/74c | Sep 2011, May 2012 | 75, nc, 33 | Jul 2014 | Sep 2014 | Jun 2014 |
| Soapstone Natural Area (SNA) | |||||||
| Dust | Mar/Apr | Plot/40 | Mar/April 2010–15 | nb | Mar 2015 | None | None |
| Vaccine | Aug | Plot/40 | Mar/April 2010–12 | 96, 88, 98 | Mar 2015 | Jun 2015 | Jun 2015 |
| Placebo | Aug | Plot/40 | Mar/April 2010–12 | 85, 84, nc | Jul 2014 | Jun 2015 | Jun 2015 |
a nb not baited, nc none captured.
bBlack-footed ferrets released on or near plot (Mo–Yr).
c8 ha were baited in 2012. See Tripp et al. (2015) for details.