OVARIAN DEVELOPMENT IN THE FEMALE RING DOVE IN RESPONSE TO STIMULATION BY INTACT AND CASTRATED MALE RING DOVES

1974 ◽  
Vol 63 (1) ◽  
pp. 43-53 ◽  
Author(s):  
MEI-FANG CHENG
Keyword(s):  
Ovarian Development ◽  
Egg Laying ◽  
Male Courtship ◽  
Streptopelia Risoria ◽  
Ring Dove ◽  
Cytological Changes ◽  
Courtship Activity ◽  
Ring Doves ◽  
Ovarian Stage ◽  
Different Levels

SUMMARY Six ovarian stages were identified in terms of egglaying latency in female ring doves (Streptopelia risoria); each stage is specified by a range of follicle sizes, characteristic follicle colour, vascularity and appearance of the oviduct. Relationships between these ovarian stages and cytological changes, levels of ovarian hormones and behavioural changes were examined. In another experiment female doves at different ovarian stages were paired with intact or castrated male birds to evaluate the effects of different levels of courtship activity on ovulation and egg-laying. Castrated male birds were effective in stimulating ovarian development culminating in egg-laying in females of advanced ovarian stage, but ineffective in female birds at earlier ovarian stages. In view of this, the decline of male courtship activity seen in normal breeding may have an important function in the reproductive biology of this species.

The role of estrogen and progesterone in the regulation of reproductive behaviour in female ring doves (Streptopelia risoria) under long vs. short photoperiods

1976 ◽  
Vol 54 (9) ◽  
pp. 1409-1422 ◽  
Author(s):  
N. R. Liley
Keyword(s):  
Hormone Treatment ◽  
Reproductive Behaviour ◽  
Egg Laying ◽  
Nest Building ◽  
Short Photoperiod ◽  
Streptopelia Risoria ◽  
Ring Doves ◽  
Long Photoperiod ◽  
Marked Tendency

Female ring doves held under long (16 h per day) or short (8 h per day) photoperiods were treated daily for 15 days with saline, estrogen, or progesterone, alone or in combination. Seven days after the start of hormone therapy females were placed with reproductively active males for 4 h per day for 9 days. There was no difference in egg-laying, courtship, and nest-building by control birds under the two photoregimes.Ovarian follicles remained small in all birds receiving hormone treatment. Oviducts of birds receiving progesterone alone remained small in the short-photoperiod group, but at long photoperiods oviducts became enlarged. Estrogen stimulated oviduct growth at both photoperiods. The combined hormone treatment resulted in considerably greater oviduct development than estrogen alone, and in this case the oviducts of birds under long photoperiod were significantly heavier than those of short-photoperiod birds.Female soliciting and nest-building activity remained low in progesterone-treated females under short photoperiod, but increased rapidly under long photoperiod. Birds treated with estrogen and estrogen and progesterone performed considerable soliciting and nest-building. There was a marked tendency for birds under long-photoperiod conditions to be more active in nest-oriented behaviour. Copulatory behaviour by the female (begging and sexual crouch) occurred infrequently in all hormone-treated birds.

ROLE OF TESTOSTERONE IN PROGESTERONE-INDUCED INCUBATION BEHAVIOUR IN MALE RING DOVES (STREPTOPELIA RISORIA)

1969 ◽  
Vol 44 (1) ◽  
pp. 13-22 ◽  
Author(s):  
JUDITH M. STERN ◽  
D. S. LEHRMAN
Keyword(s):  
Reproductive Cycle ◽  
Testosterone Propionate ◽  
Male Courtship ◽  
Courtship Display ◽  
Streptopelia Risoria ◽  
Incubation Behaviour ◽  
Ring Doves ◽  
Relationship Of ◽  
Synergistic Relationship

SUMMARY The effectiveness of progesterone (100 μg./day, × 7) in inducing incubation behaviour in male ring doves is markedly diminished by castration. Priming with testosterone propionate (200 μg./day, × 14) restored the effectiveness of progesterone in eliciting this behaviour to the levels in intact males. The synergistic relationship of these two hormones with regard to incubation behaviour contrasts with the inhibition by progesterone of an androgen-dependent male courtship display, the bowing-coo. The behavioural changes observed after these endocrine treatments are fully consistent with the normal sequence of changes in behaviour characterizing the transition from the courtship phase to the incubation phase of the reproductive cycle.

Some Social and Hormonal Determinants of Nest-Building Behaviour in the Ring Dove (Streptopelia Risoria)

Behaviour ◽  
1973 ◽  
Vol 45 (1-2) ◽  
pp. 12-36 ◽  
Author(s):  
Carl J. Erickson ◽  
Marie Christine Martinez-Vargas
Keyword(s):  
Building Materials ◽  
Nest Site ◽  
Pine Needles ◽  
Nest Building ◽  
Diurnal Changes ◽  
Streptopelia Risoria ◽  
Ring Dove ◽  
Nest Materials ◽  
Building Behaviour ◽  
Ring Doves

AbstractTwo experiments were performed to evaluate some of the controlling factors in ring dove nest-building behaviour. In the first study six pairs of animals were observed each day until the first egg appeared. Behaviour was recorded during four intervals on each day in order to obtain estimates of diurnal changes in behaviour. Moreover, each pair was presented with a variety of nest-building materials in order to determine those kinds that would be most acceptable to the animals in subsequent studies. The birds showed striking diurnal changes in behaviour. Bow-cooing, aggressive pecking by the male, nest soliciting, time-in-the-nest, and allopreening exhibited a steady decline throughout the day. Nest-building activity reached a peak between one and seven hours after the lights came on in the morning and then declined throughout the remainder of the day. By contrast, copulatory behaviour, though infrequent in the morning hours, rose sharply in the late afternoon and reached a peak during the evening watch. Feeding and self-preening also increased slightly during the afternoon and evening. The ring doves also showed marked preferences in their choice of nest materials. Light-colored reed was preferred almost exclusively to dark-colored reed. Moreover, as nest construction progressed, there was a change in the type of material collected. During early building approximately equal numbers of pine needles as well as light and heavy reed were collected. As the nest neared completion, reed collection diminished and pine needles alone were collected. The resulting structure consisted of a base of several materials lined with pine needles alone. Observations in this first experiment suggested that gathering activity by the male was elicited by the presence of the female in the nest site. A second experiment was designed to examine this relationship. Twelve female ring doves were injected with progesterone and diethylstilboestrol while another twelve females served as oil-injected controls. Hormone-treated females were found to become more firmly established at the nest site during the first two days after introduction to a male. The males mated with these hormone-treated females engaged in more nest material gathering than did males mated with oil-treated females. It was concluded that gathering behaviour by the male is determined, at least in part, by relevant social cues from the female.

Sexual Imprinting in the Collared Dove (Streptopelia Decaocto)

Behaviour ◽  
1992 ◽  
Vol 122 (1-2) ◽  
pp. 41-55 ◽  
Author(s):  
Carel TEN CATE ◽  
John Hilbers ◽  
Miriam Hall
Keyword(s):  
Foster Parents ◽  
Mate Preferences ◽  
Mate Preference ◽  
Sexual Imprinting ◽  
Streptopelia Risoria ◽  
Ring Dove ◽  
Choice Tests ◽  
Ring Doves ◽  
Cross Fostering

AbstractAlthough the occurrence of sexual imprinting has been demonstrated for doves, it is less well known how strong this effect is and which factors contribute to it. Therefore we examined whether cross-fostering collared doves (Streptopelia decaocto) to white ring doves (Streptopelia risoria) affected later mate preference and, also, whether the strenght of this preference depended on sex of the experimental birds, on the presence of siblings during rearing, on behaviour of the (foster)parents and on the behaviour of the stimulus birds during testing. Mate preferences were measured during choice tests using either stuffed or living stimulus birds, one of each species. The result showed (1) a strong effect of rearing species, but not of sex or presence of siblings on the later preference, (2) an overall bias towards preferring ring doves over conspecifics, both in tests using stuffed and tests using living stimulus birds, and (3) a tendency for the preference to shift towards collared doves with increasing age or testing experience. The findings indicate the occurrence of sexual imprinting in the collared dove and are compared with data on other species. The overall bias towards the ring dove was unexpected, but we suggest that this 'other species' bias may result from the same mechanisms which are responsible for the occurrence of an 'own species bias' in a number of other species.

THE EFFECT OF EXOGENOUS HORMONES ON AGGRESSIVE AND DEFENSIVE BEHAVIOUR IN THE RING DOVE (STREPTOPELIA RISORIA)

1966 ◽  
Vol 36 (1) ◽  
pp. 35-51 ◽  
Author(s):  
D. M. VOWLES ◽  
D. HARWOOD
Keyword(s):  
Direct Effect ◽  
Indirect Effect ◽  
Aggressive Behaviour ◽  
Breeding Cycle ◽  
Defensive Behaviour ◽  
Hormonal Effects ◽  
Streptopelia Risoria ◽  
Ring Dove ◽  
Second Peak ◽  
Model Predator

SUMMARY The aggressive and defensive behaviour of the ring dove was studied in response to a model predator and to another member of the same species. During a single breeding cycle defensive behaviour increased rapidly just before laying, reached a second peak at the time of hatching, and declined as the squabs became independent. Cocks showed aggressive behaviour to other doves throughout the cycle, but this response reached a peak soon after laying, and declined at the time of hatching. The effects of seven daily injections of oestrogen, progesterone, progesterone plus oestrogen, testosterone, and prolactin were studied. In both sexes prolactin and progesterone (with and without oestrogen) increased defensive behaviour towards a predator; in hens these hormones also increased defensive behaviour towards other birds. In cocks, however, prolactin had no effect on the response to other doves; progesterone (with and without oestrogen) increased aggressiveness, and oestrogen increased nest-cooing. Single injections of the same hormones produced similar effects, with the exception that testosterone and oestrogen in hens caused a temporary (1–5 hr.) increase in defensive behaviour. The latency of most hormonal effects was 30 min. to 2 hr., although the injections were intramuscular. This suggests a direct effect on central nervous mechanisms. Progesterone had a latency of 12–18 hr., suggesting an indirect effect.

scholarly journals Biomechanics and control of vocalization in a non-songbird

2007 ◽  
Vol 5 (24) ◽  
pp. 691-703 ◽  
Author(s):  
Coen P.H Elemans ◽  
Riccardo Zaccarelli ◽  
Hanspeter Herzel
Keyword(s):  
Vocal Tract ◽  
Neuromuscular Control ◽  
Control Parameters ◽  
Independent Control ◽  
Physiological Control ◽  
Streptopelia Risoria ◽  
Ring Dove ◽  
Key Innovation ◽  
Frequency Modulations ◽  
And Control

The neuromuscular control of vocalization in birds requires complicated and precisely coordinated motor control of the vocal organ (i.e. the syrinx), the respiratory system and upper vocal tract. The biomechanics of the syrinx is very complex and not well understood. In this paper, we aim to unravel the contribution of different control parameters in the coo of the ring dove ( Streptopelia risoria ) at the syrinx level. We designed and implemented a quantitative biomechanical syrinx model that is driven by physiological control parameters and includes a muscle model. Our simple nonlinear model reproduces the coo, including the inspiratory note, with remarkable accuracy and suggests that harmonic content of song can be controlled by the geometry and rest position of the syrinx. Furthermore, by systematically switching off the control parameters, we demonstrate how they affect amplitude and frequency modulations and generate new experimentally testable hypotheses. Our model suggests that independent control of amplitude and frequency seems not to be possible with the simple syringeal morphology of the ring dove. We speculate that songbirds evolved a syrinx design that uncouples the control of different sound parameters and allows for independent control. This evolutionary key innovation provides an additional explanation for the rapid diversification and speciation of the songbirds.

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