Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 12 of 12 for “"Columba livia"”.
-
Receptive Field Characteristics of Some Thalamic Visual Nuclei of the Pigeon (Columba Livia)
Made available in DSpace on 2014-12-10T21:07:27Z (GMT). No. of bitstreams: 1 7219815.pdf: 4832360 bytes, checksum: b72723cb6720c812d935ef40c531562e (MD5) Previous issue date: 1972
-
Being in the right place at the right time : time of day discrimination by pigeons, Columba Livia
Pigeons were trained to discriminate between four keys, one of which provided food in the mornings, another which provided food in the afternoons, and two which never provided food. Three experiments were performed to determine if pigeons could track food availability over a 24-hr period. In …
-
Parent-Offspring Conflict and the Allocation of Parental Investment in the Feral Pigeon (Columba Livia) (Nestling Growth, Concorde Fallacy, Food Limitation)
Feral pigeons (Columba livia) increased feeding of offspring in response to playback of recorded begging calls. Parent-offspring conflict can account for these results, if parents cease responding to offspring demands when costs of investment are relatively high. This hypothesis was tested by …
-
The significance of crop-gland activity in mourning doves during the hunting season in Virginia
… of crop-milk production activity in pigeons (Columba livia) following prolactin injection indicate rapid regression of anatomical changes in the crop-gland following cessation of the injections.
-
Análisis del riesgo de impactos entre aves y aeronaves en el Aeropuerto Internacional Augusto C. Sandino, Managua, Nicaragua
… las áreas cubiertas por ve getación y la especie Columba livia e Hirundo rustica no presentan un patrón de movimiento definidos. Existe un aumento significativo de la abundancia por especies que visitan en las áreas verdes alrededor de la pista de aterrizaje en los meses de octubre y diciembre, …
-
Wild American crows use funerals to learn about danger
… shared by another urban bird: the rock pigeon (Columba livia). Novel humans paired with a dead crow, a red-tailed hawk (Buteo jamaicensis), and a hawk with a dead crow all evoked mobbing and decreased foraging by crows, while pairing with a dead pigeon did not. These findings suggest that dead …
-
Bird utilization of habitat in residential areas
… independent variables. Mourning doves (Columba livia) were associated with shrubby vegetation, particularly evergreens; (winter R² =0.82, spring R²=0.70). Blue jays (Cyanocitta cristata) preferred wooded, less open neighborhoods; (winter R²=0.65, spring R²=0.79). House wrens (Troglodytes …
-
Urban wildlife species detection, species richness, and community shifts along a gradient of urbanization in an agriculturally embedded landscape using passive and active methods
… Robin (Turdus migratorius), Rock pigeon (Columba livia), and Fox squirrel. The method and species were the most important factors influencing detection probability, but time was not important for detection probability. This may be due to target species being common and easy to detect, …
-
Pharmacokinetics and pharmacodynamics of non-steroidal anti-inflammatory drugs in birds
… turkeys (Meleagris gallopavo) and pigeons (Columba livia). Plasma concentrations of the drugs were determined by validated high-performance liquid chromatography methods and pharmacokinetic parameters were calculated with compartment models. Also the plasma protein binding capacity of the …