Wildlife Research 1971 Problems Programs Progress
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Selected Research Publication Series of the U.S. Fish and Wildlife Service, 1889-1985
| Author | : |
| Publisher | : |
| Total Pages | : 174 |
| Release | : 1987 |
| Genre | : Wildlife conservation |
| ISBN | : |
A bibliography comprising annotated citations of 2037 scientific and technical publications from ten series issued by the U.S. Fish and Wildlife Service. Includes a six-page introduction containing a history of the Service and a description of the research and development series.
Monthly Catalog, United States Public Documents
| Author | : United States. Superintendent of Documents |
| Publisher | : |
| Total Pages | : 1252 |
| Release | : 1973 |
| Genre | : Government publications |
| ISBN | : |
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index.
Monthly Catalog of United States Government Publications, Cumulative Index
| Author | : United States. Superintendent of Documents |
| Publisher | : |
| Total Pages | : 1466 |
| Release | : 1976 |
| Genre | : United States |
| ISBN | : |
Mourning Dove Status Report, 1970
| Author | : James L. Ruos |
| Publisher | : |
| Total Pages | : 638 |
| Release | : 1971 |
| Genre | : Bird populations |
| ISBN | : |
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
