On the Roman imperial and crested eagles
نویسندگان
چکیده
منابع مشابه
Space use of adult Spanish Imperial Eagles Aquila adalberti
The ranges and space use of eight radio-tracked Spanish Imperial Eagles are described. The annual mean range was 25 146 ha during the breeding season (BS) and 20 557 ha in the non-breeding season (NBS). The eagles were found up to 35.9 km away from their nest during BS and nearly 62 km away during NBS. The maximum total distance covered in one day was 113.6 km, with males flying longer distance...
متن کاملRescue of a small declining population of Spanish imperial eagles
The Spanish imperial eagle (Aquila adalberti) is one of the most endangered raptors in the world. The population of Doñana National Park (south-western Spain) suffered a dramatic decline from 1990 on, after a long period of stability. The high adult mortality due to poisoning was the main cause of the decline, decreasing fecundity and biasing the offspring sex ratio to males due to a higher pro...
متن کاملPositive assortative pairing by plumage colour in Spanish imperial eagles.
Intraspecific variation in plumage may have a functional significance in mate choice. As a result, breeding birds are often paired assortatively with respect to colour. However, whether this within-pair correlation is a result of homotypic preference whereby individuals pick a mate that looks like themselves, or directional preference whereby all individuals have the same phenotypic preference,...
متن کاملPalaeopathology of human remains from the Roman Imperial Age.
The increasing attention of archaeological and anthropological research towards palaeopathological studies has allowed to focus the examination of many skeletal samples on this aspect and to evaluate the presence of many diseases afflicting ancient populations. This paper describes the most interesting diseases observed in skeletal samples from five necropolises found in urban and suburban area...
متن کاملMechanical resilience and cementitious processes in Imperial Roman architectural mortar.
The pyroclastic aggregate concrete of Trajan's Markets (110 CE), now Museo Fori Imperiali in Rome, has absorbed energy from seismic ground shaking and long-term foundation settlement for nearly two millenia while remaining largely intact at the structural scale. The scientific basis of this exceptional service record is explored through computed tomography of fracture surfaces and synchroton X-...
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ژورنال
عنوان ژورنال: Annals and Magazine of Natural History
سال: 1864
ISSN: 0374-5481
DOI: 10.1080/00222936408681646