Table 3

The χ2 values for the Kaplan-Meier Log-Rank (Mantel-Cox) for average day of death among the treatment groups with statistical differences expressed as ns = non significant, * = p < 0.05, ** = p < 0.01 and *** = p < 0.001. Groups indicated as species and A. astaci challenge strain in question. Number of crayfish per experimental group in brackets after the group definition in the first column.

  narrow-clawed crayfish,
PsI-Tahoe
narrow-clawed crayfish,
PsI-Puujärvi
narrow-clawed crayfish,
Control
noble crayfish,
PsI-Tahoe
noble crayfish,
PsI-Puujärvi
narrow-clawed crayfish, PsI-Tahoe (8)          
narrow-clawed crayfish, PsI-Puujärvi (7) 7.3**        
narrow-clawed crayfish, Ctrl (7) 15.0*** 11.4***      
noble crayfish, PsI-Tahoe (8) 15.8*** 14.3*** 15.0***    
noble crayfish, Ps-Puujärvi (7) 0.0ns 7.2** 14.5*** 0.0ns  
noble crayfish, Ctrl (7) 15.0*** 14.8*** 1.0ns 15.0*** 14.5***

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