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Table 4 Independent 2-sample t-tests comparing bighorn distribution and habitat use by animals that survived or died and cause-specific mortality of bighorn sheep after the initiation of fire-mediated habitat alterations in the Seminoe Mountains, Wyoming, USA from May 2011 to June 2013.

From: Short-Term Impacts of Fire-Mediated Habitat Alterations on an Isolated Bighorn Sheep Population

  Survival    
  Survived Died    
Variable Est. SE Range Est. SE Range d.f. t stat P
Relative home range increase after fires (95% contour) 1.48 0.36 0.24 to 3.40 5.48 1.64 2.60 to 12.80 14 2.69 0.018
Relative home range overlap with treated areas (95% contour) 0.25 0.04 0.00 to 0.48 0.36 0.06 0.00 to 0.51 22 1.51 0.146
Selection for treated habitat (change in proportion of locations within treated areas after fires) 0.06 0.07 −0.41 to 0.38 0.08 0.05 −0.09 to 0.28 14 0.26 0.801
  Cause-specific mortality    
  Poor body condition Other    
Variable Est. SE Range Est. SE Range d.f. t stat P
Relative home range increase after fires (95% contour) 5.08 2.63 1.34 to 10.15 5.79 2.42 2.54 to 12.80 5 0.19 0.854
Relative home range overlap with treated area (95% contour) 0.48 0.03 0.39 to 0.53 0.26 0.07 0.00 to 0.39 7 −2.44 0.045
Selection for treated habitat (change in proportion of locations within treated areas after fires) 0.00 0.04 −0.09 to 0.05 0.15 0.06 0.00 to 0.29 5 1.81 0.130