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Title: Factors affecting survival and recruitment in female Merriam's turkeys

Author: Rumble, Mark A.; Wakeling, Brian F.; Flake, Lester D.

Date: 2003

Source: Intermountain journal of sciences 9(1): p. 26-37

Publication Series: Miscellaneous Publication

Description: Merriam’s turkeys (Meleagris gallopavo merriami) historically occurred in ponderosa pine (Pinus ponderosa) and Gambel’s oak (Quercus gambelli) forests in the southwestern U.S. They have been successfully transplanted into a wide array of habitats outside their original range. Some introduced populations are more robust than those within the original range. Annual survival fluctuates widely, ranging from 30 to 76 percent for adults. Survival of subadult hens is typically lower than adults. Predation is the primary mortality factor and coyotes are the most common predator. Percent of females attempting to nest (nesting rates) ranges from ~30 to >90 percent for adults. Yearling females nest at lower rates, and within the historical range of Merriam’s turkeys, nesting by yearling hens may be almost nonexistent. Management that would increase nesting by yearlings probably has the greatest potential to influence populations given the existing biological limitations to Merriam’s turkeys. Nesting rates of adult and yearling hens is likely related to habitat quality or productivity, possibly nutrition-related. Since survival of poults is low, maintaining high-quality meadows with an abundant component of herbaceous vegetation and invertebrates might increase poult survival.

Keywords: Merriam’s turkeys, Meleagris gallopavo merriami, nesting, population characteristics, survival

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Citation:


Rumble, Mark A.; Wakeling, Brian F.; Flake, Lester D. 2003. Factors affecting survival and recruitment in female Merriam''s turkeys. Intermountain journal of sciences 9(1): p. 26-37

 


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