Results 121 to 130 of about 3,435 (166)

Biochemical variability in four species of strigiformes

Biochemical Systematics and Ecology, 1991
Genetic variability in four species of Strigiformes was studied with multilocus enzyme electrophoresis, and results were used to estimate genetic diversity values. Strix aluco showed average values of polymorphism (P) and heterozygosity (H) higher than Tyto alba and Athene noctua.
Ettore Randi
exaly   +2 more sources

Serum proteins of selected Falconiformes and Strigiformes

Biochemical Systematics and Ecology, 1982
Abstract Blood samples were collected from ten species of raptors during the Fall 1980 migration in the vicinity of Green Bay, Wisconsin. Serum protein electrophoresis was performed on the samples in order to compare taxa based on biochemical information and relate this to current systematics.
Raymond P Morgan
exaly   +2 more sources

A Review of the Systematics of Neotropical Owls (Strigiformes)

2017
Although birds belong to the best known animal groups, their systematics has not been fully resolved yet. Among the approximately 80 Neotropical owl species, there are monotypic genera such as Lophostrix, complex and diverse genera such as Megascops or Glaucidium, as well as widespread and variable taxa such as Bubo virginianus and Tyto furcata.
Knut Eisermann, JOSÉ CARLOS Motta-Junior   +1 more
exaly   +2 more sources

Owls (Strigiformes)

2009
Abstract Owls (Order Strigiformes) are grouped into two cosmopolitan families: the species-rich Strigidae (typical owls, 187 species; Fig. 1) and the relatively depauperate Tytonidae (barn owls and bay owls, 15 species). Owls are broadly characterized by adaptations to predation (strong zygodactyl feet, raptorial bill and talons, and soJ-
Joseph W Browna, David P Mindell
openaire   +1 more source

Haemosporidian parasites from captive Strigiformes in France

Parasitology Research, 2020
Haemosporidia infections may cause major damage to avian populations and represent a concern for veterinarians working in zoological parks or wildlife rescue centres. Following the fatal infection of 9 Great grey owls (Strix nebulosa) at Mulhouse zoological park, between summer 2013 and 2015, a prospective epidemiological investigation was performed in
Marine Giorgiadis, Jacques Guillot, Linda Duval, Irène Landau, Benoît Quintard   +4 more
openaire   +2 more sources

The haemoproteids of the avian order Strigiformes

Canadian Journal of Zoology, 1989
The avian order Strigiformes consists of two families, the Strigidae (136 species) and the Tytonidae (12 species). To date 13 species of haemoproteids (Haemosporina: Haemoproteidae) have been described from the Strigidae, whereas none has been described from the Tytonidae. Haemoproteus asio and H. otus are nomina nuda. Haemoproteus bubonis, H.
Madonna A. Bishop, Gordon F. Bennett
openaire   +1 more source

The karyograms of some Falconiformes and Strigiformes

Chromosoma, 1966
The chromosome complements of cultured cells of the Falconidae are characterized by their low values: 2n=52 in Falco tinnunculus. 2n=68 in Buteo buteo, 64 in an unknown species (Accipiter nisus ?). The Strigidae have high chromosome numbers: 82 in Strix aluco and Athene noctua, 92 in Tyto alba.
Aristeo Renzoni, Maria Vegni-Talluri
openaire   +1 more source

HAEMATOLOGIC PARAMETERS ON VARIOUS SPECIES OF STRIGIFORMES AND FALCONIFORMES

Journal of Wildlife Diseases, 1978
Normal mean values for packed cell volume, total erythrocyte count, total leukocyte count, total protein and mean corpuscular volume were obtained from 37 species of Strigiformes and Falconiformes representing 207 individuals.
Smith, Edwin E., Bush, R. Mitchell
openaire   +2 more sources

Ordnung: Strigiformes – Eulen

2020
Der Stammbaum der Eulenvogel reicht seit der Abspaltung der „Nachtgreifvogel“ von den „Taggreifvogeln“ wenigstens 60 Mio. Jahre zuruck, wobei die Lebensform Eule nur einmal entwickelt wurde (monophyletisch). Nach Fossilfunden erfolgte die Aufspaltung in die beiden Familien Tytonidae (Schleiereulen-artige) und Strigidae (Eigentliche Eulen) im Miozan ...
openaire   +1 more source

Microstructure of the Primary Remex of Owls (Strigiformes)

Biology Bulletin, 2019
An electron microscopic study of the microstructure of the primary remiges in owls (Strigiformes) was conducted using 13 species: Nyctea scandiaca, Bubo bubo, Asio otus, Otus scops, O. sunia, Aegolius funereus, Athene noctua, Glaucidium passerinum, Surnia ulula, Strux aluco, S. uralensis, S. nebulosa, and Tyto alba.
openaire   +1 more source