Infestation of an owl (Bubo bubo) with Lucilia spp.

Brightness variability in the white badge of the eagle owl Bubo bubo

The application of modern spectrometry to the study of avian colour variability has revealed ignored patterns of colour variation such as male-biased sexual dichromatism and seasonal variability in the plumage. However, the variation in the achromatic property of such traits, that is in the total light reflectance of the spectrum (i.e., brightness), has commonly been overlooked. The evolution o...

Broods of Five Fledglings in the Eurasian Eagle-Owl (Bubo bubo)

Isolation of Salmonella Enteritidis phage type 21b from a Eurasian eagle-owl (Bubo bubo).

A case of fatal salmonellosis in a Eurasian eagle-owl (Bubo bubo) from Bursa Province (northwestern Turkey) is described. The organs of the bird were examined histopathologically and microbiologically. Macroscopic and microscopic findings were consistent with a Salmonella infection. Salmonella enterica subspecies enterica serovar Enteritidis (S. Enteritidis) phage type (PT) 21b was isolated fro...

Bubo - Implementing OWL in rule-based systems

The Semantic Web is build around a semi-structured data model RDF and an explicit conceptualization for such data so-called ontologies. A standardized language for the specification of the latter has recently be proposed by the W3C. This paper explores the strategies for the implementation of this language in logic programming environments such as Prolog and relational databases. Along these li...

Factors influencing territorial occupancy and reproductive success in a Eurasian Eagle-owl (Bubo bubo) population

Modelling territorial occupancy and reproductive success is a key issue for better understanding the population dynamics of territorial species. This study aimed to investigate these ecological processes in a Eurasian Eagle-owl (Bubo bubo) population in south-eastern Spain during a seven-year period. A multi-season, multi-state modelling approach was followed to estimate the probabilities of oc...