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At least 721 records · Page 40Linked to original sources
PubMed1975

Effects of stimuli emanating from the nest on the reproductive cycle in the ring dove. I: pre-laying behaviour.

The course of several behavioural patterns could be influenced by controlling the state of the nest available to a pair of ring doves (Streptopelia risoria). These patterns were: wing-flipping, handling of nesting material, nest bowl occupancy, and nervous activities. In groups having to build nests, the onset of wing-flipping by the female occurred at a predictable time before egg-laying. It is argued that during nest-building a female influences the male to carry material to her by sitting in the nest bowl and wing-flipping. In pairs provided with a completed nest, the course of the pre-laying cycle was changed and the 'typical' sex roles did not emerge. The relationships between the male and female are discussed.

Animals↗
PubMed1975

Effects of stimuli emanating from the nest on the reproductive cycle in the ring dove. II: building during the pre-laying period.

The nest is a major focal point of the reproductive cycle in the ring dove (Streptopelia risoria). This study shows that the state of the nest is an important determinant of the type of nest-building exhibited. For example, birds faced with an empty nest bowl every day removed more material from dispensers and built more actively than did those allowed to construct nests normally. Conversely, those given completed nests were not very active, but were more efficient in using the little they removed from the dispensers and showed a reversal of sex roles in building. The relations between nest-building and egg-laying, and between male and the female are discussed.

Animals↗
PubMed1975

Effects of stimuli emanating from the nest on the reproductive cycle in the ring dove. III: building in the postlaying period and effects on the success of the cycle.

Nest-building as a functional activity is shown to continue well into the incubation period of the ring dove (Streptopelia risoria), its intensity depending on the state of the nest. The presence of a nest has profound consequences on breeding success: pairs with no nests did not incubate well and did not hatch their eggs. Pre-laying disruption of the nest or of the usual roles of the male and female had no effect on incubation as long as a nest was present when the eggs were laid. It is concluded that the presence of a nest is necessary for the proper establishment of incubation. The possible role of the nest in incubation is discussed.

Animals↗
PubMed1977

Experience and progesterone in ring dove incubation.

Doves were tested for progesterone-induced incubation after they had acquired previous experience with from one to five different phases of their initial breeding cycle. A sixth group had no previous breeding experience. Previous breeding experience inclusive of at least the nestbuilding phase of the cycle is a significant facilitator of incubation behaviour induced by injected progesterone, but previous experience with only the courtship phase was not sufficient. Experience with phases additional to nestbuilding increased overall nest-responsiveness without significantly increasing the number of birds incubating. The nature of a ring dove's previous experience is therefore an important influence in its behavioural response to exogenous progesterone.

Animals↗
PubMed1977

Space utilization of Peromyscus: social and spatial factors.

Space utilization of Peromyscus maniculatus bairdi and P. leucopus noveboracensis was studied in laboratory enclosures. After 1 week, individuals were given access to twice as much space for an additional week. The new rea was either vacant or was occupied by a similarly experienced conspecific of the same or opposite sex. Patterns of space utilization and reaction to the doubling of space were species specific. Each species displayed specific patterns of social behaviour and only P. maniculatus reproduced. Both species exhibited similar patterns of space utilization in the presence of another individual. Social regulation of space utilization did not result from territorial defence of mutually exclusive areas, but from the initial mutual avoidance of two individuals.

Aggression↗
PubMed1995

[14C]2-deoxyglucose uptake in the brain of the ring dove (Streptopelia risoria). II. Differential uptake at the onset of incubation.

Brain areas involved in the expression of incubation behaviour were identified in male ring dove at the onset of incubation using quantitative [14C]2-deoxyglucose (2DG) autoradiography. The uptake of 2DG in twenty-eight areas found in the hypothalamus and thalamus, and six areas in the forebrain were compared in control non-breeding and incubating birds. Although 2DG utilisation varied significantly between brain areas, significant differences between non-breeding males and incubating males were observed only in 4 of them. These were the nucleus tuberis, nucleus preopticus medialis, nucleus ovoidalis and paleostriatum primitivum. The uptake of 2DG was increased at the onset of incubation in the nucleus tuberis, nucleus preopticus medialis and nucleus ovoidalis and decrease in the paleostriatum primitivum. These findings are consistent with the hypothesis that these brain areas play a role in the initiation of incubation behaviour.

Analysis of Variance↗