Effects of predation and hunting on adult sage grouse Centrocercus urophasianus in Idaho

  • Connelly J
  • Apa A
  • Smith R
 et al. 
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Although sage grouse Centrocercus urophasianus have declined throughout their range in North America, little is known about annual mortality patterns of this species. Thus, we summarize a long-term data set on timing and causes of mortality of sage grouse. Predation was the most common cause of death for radio-marked sage grouse. For adult males, 83% of deaths were attributed to predation and 15% to hunting. However, for adult females, 52% of deaths were caused by predation while 42% were attributed to hunting. We rejected the hypothesis that type of mortality (predation vs hunting) was independent of gender of sage grouse. For males, 70% of deaths occurred during spring and summer (March-August) and 28% occurred in September-October. For females, 52% of mortalities occurred during spring and summer and 46% occurred in September-October. We rejected the hypothesis that time of death is independent of the gender of sage grouse. In six of 15 years (40%), harvest rates for adult females may have exceeded 10% while this rate was only exceeded in two of 15 years (13%) for adult males.

Author-supplied keywords

  • 1345 barton road
  • and game
  • anthony d
  • apa
  • connelly
  • hunting
  • id
  • id 83204
  • idaho department of fish
  • idfg
  • jconnell
  • john w
  • mortality
  • pocatello
  • predation
  • radio-telemetry
  • randall b
  • sage grouse
  • smith
  • state
  • us
  • usa - e-mail

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  • PUI: 32122123
  • ISBN: 0909-6396
  • PMID: 2568
  • ISSN: 09096396
  • SCOPUS: 2-s2.0-0034502829
  • SGR: 0034502829


  • John W Connelly

  • Anthony D Apa

  • Randall B Smith

  • Kerry P Reese

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