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Table 4 Summary of differences between test-and-remove alone or combined with culling.

From: Targeted strategies for the management of wildlife diseases: the case of brucellosis in Alpine ibex

Scenario TRC vs TR
All Core Female Corefemale
\({d}_{dens}\) 0 5 10 0 5 10 0 5 10 0 5 10
Seroprevalence NS \(\downarrow\) \(\downarrow\)   \(\downarrow\)   \(\downarrow\) \(\downarrow\) NS   \(\downarrow\)  
Probability of Brucella extinction NS \(\uparrow\) \(\uparrow\) NS NS \(\uparrow\) NS NS \(\uparrow\) NS NS \(\uparrow\)
Population size   \(\downarrow\)    \(\downarrow\)    \(\downarrow\)    \(\downarrow\)  
Number (over 10 years)
 Captured   \(\downarrow\)    \(\downarrow\)    \(\downarrow\)    \(\downarrow\)  
 Removed   \(\downarrow\)    \(\downarrow\)    \(\downarrow\)    \(\downarrow\)  
 Removed + culled   \(\uparrow\)    \(\uparrow\)    \(\uparrow\)    \(\uparrow\)  
  1. Arrows indicate significant (p < 0.05) increase (\(\uparrow\)) or decrease (\(\downarrow\)) of model outputs as indicated by the chi-squared (probability of Brucella extinction) or Mann–Whitney (all other outputs) tests comparing the results between TRC scenarios and their TR counterparts. “NS” indicates the absence of significant differences. Output values are detailed in Figure 2, Table 3 and Additional file 3. The delay in density-dependent responses, \({d}_{dens}\), takes different values according to the assumption (“short-delay” assumption: \({d}_{dens}=0\) years; “medium-delay” assumption: \({d}_{dens}=5\) years; “long-delay” assumption: \({d}_{dens}=10\) years).
  2. TR: test-and-remove, TRC: TR combined with the culling of unmarked individuals, TR(C)core: targeted towards the core area of the massif, TR(C)female: targeted towards females, TR(C)corefemale: targeted towards both females and the core area (multilevel).