详细书目
| 附加的形体格式: | Online version: Krohn, William B. Rocky Mountain population of the western Canada goose. Washington, D.C. : U.S. Dept. of the Interior, Fish and Wildlife Service, 1980 (OCoLC)605167516 |
|---|---|
| 材料类型: | 政府刊物, 国家级的政府刊物 |
| 文件类型: | 书 |
| 所有的著者/提供者: |
William B Krohn; Elwood G Bizeau |
| OCLC号码: | 6422614 |
| 描述: | 93 p. : ill. ; 26 cm. |
| 内容: | Abstract. Introduction. Definitions and Methods. Description of Reference Areas. Population Characteristics. Summary. Acknowledgments. References. Appendix A, B, and C. |
| 丛书名: | Special scientific report--wildlife, 229. |
| 责任: | by William B. Krohn, Elwood G. Bizeau. |
摘要:
The western Canada goose (Branta canadensis moffitti) was divided into a Rocky Mountain population (RMP) and a Pacific population (PP) on the basis of band recovery programs examined in this study and recovery data from other investigators. Habitat information provided a base line for evaluating future changes in nesting, molting, and wintering areas. Topics covered in the discussion of breeding biology are nesting chronology, spring population composition, breeding age, clutch size, nesting success, artificial nesting structures, and gosling survival. Some management recommendations include the refinement and standardization of spring and winter aerial surveys, and more accurate age and sex determinations when geese are banded and color-marked.
标签
添加标签 目的是为 "The Rocky Mountain population of the western Canada goose : its distribution, habitats, and management".
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