![]() ![]() Eagles nesting near a high-density prey resource used that resource almost exclusively. Patterns in dietary response were inconsistent with expectations if either ontogenetic imprinting or competition determined diet choice, but they met expectations if functional response determined diet. Eagle diet varied greatly within the population and the spatial structure of eagle diet within the population varied according to the scale of measurement. We evaluated the relationship between spatial variability in prey and food habits of eastern imperial eagles Aquila heliaca at a 90,000 ha national nature reserve in north-central Kazakhstan. Spatial structure in the diet of imperial eagles Aquila heliaca in Kazakhstan These data are important because few hematologic studies of these eagle species have been conducted. We found no parasites in steppe eagles in either year, and no bird had multiple-species infections. Furthermore, in 2000, one of 65 imperial eagles was infected with Haemoproteus sp. Five of 65 imperial eagles and one of 14 white-tailed sea eagle were infected with L. In 1999, six of 29 imperial eagles were infected with Lencocytozoon toddi. We collected blood smears from 94 nestling imperial eagles ( Aquila heliaca), five nestling steppe eagles ( Aquila nipalensis), and 14 nestling white-tailed sea eagles (Haliaeetus albicilla) at Naurzum Zapovednik (Naurzum National Nature Reserve) in Kazakhstan during the summers of 19. ![]() Basic hematologic surveys are the first step toward evaluating whether host-parasite prevalences observed in North America and Europe occur elsewhere in the world. Prevalence of hemoparasites has been investigated in many avian species throughout Europe and North America. Leppert, Lynda L Layman, Seth Bragin, Evgeny A Katzner, Todd ![]() Survey for hemoparasites in imperial eagles ( Aquila heliaca), steppe eagles ( Aquila nipalensis), and white-tailed sea eagles (Haliaeetus albicilla) from Kazakhstan. ![]()
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