[PDF] Top 20 The Orientation of Untrained Pigeons: a Dichotomy in the Homing Process
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The Orientation of Untrained Pigeons: a Dichotomy in the Homing Process
... Statistical confirmation of this point, and of the contrast with the relatively unitary nature of the orientation process, can be obtained from a consideration of the individual case his[r] ... See full document
9
Factors reducing the expected deflection in initial orientation in clock shifted homing pigeons
... displacement, homing can take place if a bird is able to establish the new position with respect to home (map step), and if it can determine a direction in space following which it will reach the goal (compass ... See full document
10
Pairs of pigeons act as behavioural units during route learning and co navigational leadership conflicts
... in pigeons (Columba livia), flying in a flock can be energetically more costly than flying alone (Usherwood et ...overall orientation of the flock arises from averaging the directional preferences of the ... See full document
5
The influence of experience in orientation: GPS tracking of homing pigeons released over the sea after directional training
... in homing performance, few experiments have investigated the effects on orientation of repeated releases in the same direction, once the birds are released from new ...released pigeons tend to fly in ... See full document
6
Conditioned discrimination of magnetic inclination in a spatial orientation arena task by homing pigeons (Columba livia)
... that homing pigeons are able to use the Earth’s magnetic field to obtain directional information when returning to their loft and that their magnetic compass is based, at least in part, on the perception of ... See full document
9
Finding home: the final step of the pigeons' homing process studied with a GPS data logger
... initial orientation of the two experimental groups of birds by considering the direction displayed by the birds when flying at 1500·m from the release ...initial orientation bearings, a mean vector and ... See full document
7
The Effect of Orientation of Business Process on the Growth of Business Industrial Sector in Wajo District, South Sulawesi Province
... to process input into an output that is ...a process are sometimes needed by other processes to produce different outputs and then overall these processes produce output that will be utilized by external ... See full document
8
Homing pigeons use olfactory cues for navigation in england
... When homing performance was assessed by ranking homing speeds, with birds arriving on each day after release tied, there were no significant differences between control and experimental ...poor ... See full document
6
Seven theses on pigeon homing deduced from empirical findings
... In recent years, research on pigeon homing has developed in a peculiarly dichotomous way. On the one hand, our knowledge and understanding have made considerable progress. In my personal view, the overall ... See full document
7
Partial experience with the arc of the sun is sufficient for all day sun compass orientation in homing pigeons, Columba livia
... for orientation has been explored in numerous ...compass orientation to ...compass orientation in a cue-controlled arena. Two groups of young homing pigeons received different exposure ... See full document
8
The Orientation of Pigeons at Gravity Anomalies
... Further, since birds wearing magnets were as well oriented as controls when released inside the gravity anomaly, it seems to rule out the idea that the combination of disturbed magnetic [r] ... See full document
5
Non-Collagen Protein in the Dentin Tissue – the Role in the Process of Dentinogenesis
... Migration of DSP in the process of SDS polyacrylamide gel electrophoresis shows that its molecular mass is about 140 000 in 5-15% gradient gel, but 105 000 in 15% gels¹¹. Data from modern literature stress the ... See full document
7
ANOSMIA IN ZnSO4 TREATED PIGEONS: LOSS OF OLFACTORY INFORMATION DURING ONTOGENY AND THE ROLE OF SITE FAMILIARITY IN HOMING EXPERIMENTS
... hypothesis, pigeons associate specific odours with the direction of the winds carrying these odours to the ...our pigeons were capable of doing so, in contrast to pigeons made anosmic by severing the ... See full document
17
Activation, homing, and role of the mesenchymal stem cells in the inflammatory environment
... Migration process is represented by several distinctive steps and starts with the resistance and adhesive interactions between cells flowing through the bloodstream and vascular ...the homing recep- tors ... See full document
10
Sun Navigation in Homing Pigeons Attempts to shift Sun Coordinates
... 3, the angle between it and the direction to the home loft is called the 'Home Error'; the difference between the 10 mile track bearing and the previous training direction is the ' Compa[r] ... See full document
26
Are American Homing Pigeons Genetically Different from Italian Ones?
... Recent Cornell experiments performed by Benvenuti and Brown 1989 tested the rearing and training hypothesis by comparing the behaviour of two groups of American anosmic birds, one raised[r] ... See full document
10
Homing experiments on pigeons subjected to bilateral destruction of the paratympanic organ
... on pigeons by Benjamins (1926) and did not produce any kind of postural deficit, but the author did not record systematic data on homing behaviour of the lesioned ... See full document
5
Cardiorespiratory adjustments of homing pigeons to steady wind tunnel flight
... Flight studies. The rate of oxygen consumption for five pigeons was determined using the open-circuit method and flight training procedures similar to those previously described by Thomas et al. (1984). Briefly, ... See full document
12
The Process of Institutional Resilience in the Republic of Perú
... the process of institutional resilience in Peru and, we take into account the characterization of phenomenological ...resilience process and the relationship with sustainable and sustainable ... See full document
5
Sun Navigation in Homing Pigeons
... The existence of some form of accurate time mechanism is an essential part of the full hypothesis, though in theory latitude could be obtained without such a chronometer, from the altitu[r] ... See full document
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