| Autor: |
Moss, Edward H. R., Hipkiss, Tim, Oskarsson, Ingvar, HÄGer, Arne, Eriksson, Torsten, Nilsson, Lars-Erik, Halling, Sven, Nilsson, Per-Olof, Hörnfeldt, Birger |
| Zdroj: |
Journal of Raptor Research; Sep2012, Vol. 46 Issue 3, p248-257, 10p |
| Abstrakt: |
The article discusses a study on the reproductive performance of the Golden Eagle or Aquila chrysaetos across 10-55 territories from 1980-2009 in northern Sweden's boreal forest. Indices of their prey (grouse (Tetraonidae) species and mountain hare (Lepus Timiditus)) and cyclic vole (Myodes and Microtus) populations were also studied. The index of annual population production and the percentage of territories with nestlings were found to be associated with the indices of their primary prey populations. Twenty-eight percent of the variation in the index of annual population production was explained by the prey population variables. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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