| タイトル | Evolution of land mammal diversity in North America during the Cenozoic |
| 著者（英） | Stucky, Richard K. |
| 著者所属（英） | NASA Headquarters |
| 発行日 | 1990-01-01
1990 |
| 言語 | eng |
| 内容記述 | The North American continental patterns of generic richness, extinction, and origination have been reexamined and analyzed in the context of alpha and beta species diversity. The major models of diversity are discussed as well as primary concepts and theories based on studies of living organisms. The adequacy of the fossil record is considered and patterns of genetic richness and species level diversity are outlined. Major shifts in mammalian community structures are reviewed and hypotheses are presented on diversity origin, regulation, and maintenance for the North American record. Results demonstrate a complex relationship between continental alpha and beta diversity characterized by marked changes through time and differences in patterns at each level. It is clear that both biotic and abiotic factors have strongly influenced the evolution of North American species diversity and that major restructuring occurred in Cenozoic mammalian communities. |
| NASA分類 | GEOSCIENCES (GENERAL) |
| レポートNO | 93A44899 |
| 権利 | Copyright |
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