Mourning Dove Status Report, 1970

Released on by James L. Ruos
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  • Mourning Dove Status Report, 1970 Book Detail

  • Author : James L. Ruos
  • Release Date : 1971
  • Publisher :
  • Genre : Bird populations
  • Pages : 638
  • ISBN 13 :
  • File Size : 44,44 MB
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Mourning Dove Status Report, 1970 by James L. Ruos PDF Summary

Book Description: U.S. mourning dove population indexes increased by 4% from 1969 to 1970 in the Eastern Management Unit, but declined 2% in the Central Management Unit and 11% in the Western Management Unit. The changes were below the 10-year means, 1960-69, by 3% in the Eastern Unit, 15% in the Central, and 27% in the Western. Regression analyses of the call-count data for 1960-70 indicate a statistically significant downward trend in dove breeding populations in all management units; mean rates of decline were 1% a year in the Eastern Unit, 3% a year in the Central, and 4% in the Western

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Mourning Dove Status Report, 1970

Mourning Dove Status Report, 1970

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U.S. mourning dove population indexes increased by 4% from 1969 to 1970 in the Eastern Management Unit, but declined 2% in the Central Management Unit and 11% i