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Achieving better estimates of greatersage-grouse chick survival in Utah
Journal of Wildlife Management (2010)
  • David K. Dahlgren
  • Terry A. Messmer
  • David N. Koons, Utah State University
Declining sage-grouse (Centrocercus urophasianus) populations may be characterized by poor recruitment largely attributed to low chick survival. However, few published studies have explicitly examined factors that influence chick survival. We used a suture method to radiomark 1-2-day-old sage-grouse chicks (n = 150) in 2005-2006 on Parker Mountain in south-central Utah, USA, and monitored their survival to 42 days. We modeled effects of year, hatch date, chick age, brood-female age, brood-mixing, and arthropod abundance on chick survival. Our best model revealed an average survival estimate of 0.50 days to 42 days, which is the highest level ever documented for this long-lived species.
  • brood-mixing;Centrocercus urophasianus;chick survival;greater sage-grouse;productivity;radiotelemetry;suture method;Utah
Publication Date
August, 2010
Citation Information
Dahlgren, D.K.*, T.A. Messmer, and D.N. Koons. 2010. Achieving better estimates of greater sage-grouse chick survival in Utah. Journal of Wildlife Management 74:1286-1294.