Family in the order COLUMBIFORMES, comprised of pigeons or doves. They are BIRDS with short legs, stout bodies, small heads, and slender bills. Some sources call the smaller species doves and the larger pigeons, but the names are interchangeable.

S-16924 [(R)-2-[1-[2-(2,3-dihydro-benzo[1,4]dioxin-5-yloxy)-ethyl]- pyrrolidin-3yl]-1-(4-fluorophenyl)-ethanone], a novel, potential antipsychotic with marked serotonin1A agonist properties: III. Anxiolytic actions in comparison with clozapine and haloperidol. (1/1532)

S-16924 is a potential antipsychotic that displays agonist and antagonist properties at serotonin (5-HT)1A and 5-HT2A/2C receptors, respectively. In a pigeon conflict procedure, the benzodiazepine clorazepate (CLZ) increased punished responses, an action mimicked by S-16924, whereas the atypical antipsychotic clozapine and the neuroleptic haloperidol were inactive. Similarly, in a Vogel conflict paradigm in rats, CLZ increased punished responses, an action shared by S-16924 but not by clozapine or haloperidol. This action of S-16924 was abolished by the 5-HT1A antagonist WAY-100,635. Ultrasonic vocalizations in rats were inhibited by CLZ, S-16924, clozapine, and haloperidol. However, although WAY-100,635 abolished the action of S-16924, it did not affect clozapine and haloperidol. In a rat elevated plus-maze, CLZ, but not S-16924, clozapine, and haloperidol, increased open-arm entries. Like CLZ, S-16924 increased social interaction in rats, whereas clozapine and haloperidol were inactive. WAY-100,635 abolished this action of S-16924. CLZ, S-16924, clozapine, and haloperidol decreased aggressive interactions in isolated mice, but this effect of S-16924 was not blocked by WAY-100, 635. All drugs inhibited motor behavior, but the separation to anxiolytic doses was more pronounced for S-16924 than for CLZ. Finally, in freely moving rats, CLZ and S-16924, but not clozapine and haloperidol, decreased dialysis levels of 5-HT in the nucleus accumbens: this action of S-16924 was blocked by WAY-100,165. In conclusion, in contrast to haloperidol and clozapine, S-16924 possessed a broad-based profile of anxiolytic activity at doses lower than those provoking motor disruption. Its principal mechanism of action was activation of 5-HT1A (auto)receptors.  (+info)

Blocking a selective association in pigeons. (2/1532)

Experiment 1 demonstrated for the first time a stimulus-reinforcer interaction in pigeons trained with free-operant multiple schedules of reinforcement. Pigeons that treadle pressed in the presence of a tone-light (TL) compound for food exhibited primarily visual stimulus control on a stimulus-element test, whereas pigeons that avoided shock in TL exhibited auditory control. In Experiment 2, this selective association was blocked in pigeons pretrained with the biologically contingency-disadvantage element of the compound (i.e., tone-food or light-shock) before TL training. When this pretraining preceded compound-stimulus training, control was now auditory in pigeons that treadle pressed for food and was visual in pigeons that avoided shock. Previous attempts at blocking this selective association were unsuccessful in pigeons (LoLordo, Jacobs, & Foree, 1982) but were successful in rats (Schindler & Weiss, 1985). Experiment 2 established that selective associations can be blocked in pigeons when the procedures that were effective with rats were systematically replicated. These results further demonstrate the cross-species generality of an associative attentional mechanism involving a biological constraint on learning in species with different dominant sensory systems.  (+info)

Psychophysics of remembering. (3/1532)

We present a new model of remembering in the context of conditional discrimination. For procedures such as delayed matching to sample, the effect of the sample stimuli at the time of remembering is represented by a pair of Thurstonian (normal) distributions of effective stimulus values. The critical assumption of the model is that, based on prior experience, each effective stimulus value is associated with a ratio of reinforcers obtained for previous correct choices of the comparison stimuli. That ratio determines the choice that is made on the basis of the matching law. The standard deviations of the distributions are assumed to increase with increasing retention-interval duration, and the distance between their means is assumed to be a function of other factors that influence overall difficulty of the discrimination. It is a behavioral model in that choice is determined by its reinforcement history. The model predicts that the biasing effects of the reinforcer differential increase with decreasing discriminability and with increasing retention-interval duration. Data from several conditions using a delayed matching-to-sample procedure with pigeons support the predictions.  (+info)

Effects of promazine, chlorpromazine, d-amphetamine, and pentobarbital on treadle pressing by pigeons under a signalled shock-postponement schedule. (4/1532)

The effects of promazine on treadle pressing to postpone the presentation of electric shock were studied in three pigeons. The effects of chlorpromazine, d-amphetamine, and pentobarbital were studied in two of these pigeons. Each treadle press postponed electric shock for 20 sec and presentation of a preshock stimulus for 14 sec. Selected doses of both promazine and chlorpromazine increased the rates of treadle pressing in all birds. The response-rate increases produced by promazine and chlorpromazine were due to increased conditional probabilities of treadle pressing both before and during the preshock stimulus. d-Amphetamine (1 and 3 mg/kg) slightly increased responding in one of the birds, but not to the extent that promazine or chlorpromazine did. In the other bird, the 10 mg/kg dose of d-amphetamine increased shock rate but did not change response rate. Some doses of d-amphetamine increased the conditional probabilities of responding both in the absence of the preshock signal and during the preshock signal in both birds. Pentobarbital only decreased response rates and increased shock rates.  (+info)

Ultrastructure of surface components of Streptococcus gallolytics (S. bovis) strains of differing virulence isolated from pigeons. (5/1532)

Virulence of Streptococcus gallolyticus (S. bovis) strains isolated from pigeons is associated with the presence of the extracellular proteins A, T1, T2 and T3. Based on the presence or absence of these proteins, six supernatant-phenotypes are distinguished. Experimental infection studies have indicated that strains belonging to the A-T1, A+T1, A+T2 and A+T3 groups are highly virulent for pigeons, strains belonging to the A-T3 groups are moderately virulent and A-T2 strains are of low virulence. In this study the surface structure of 15 pigeon S. gallolyticus strains representing high, moderate and low virulence supernatant-phenotypes was examined by electron microscopy. The presence of capsular material was determined by transmission electron microscopy after polycationic ferritin labelling and immunostabilization. Capsules from cells labelled with polycationic ferritin were usually thicker than those from cells exposed to antiserum. The capsule of the virulent strains had a regular, continuous appearance whilst irregularity of the capsule was a characteristic of the low virulence A-T2 strains. Negative staining revealed the presence of fimbriae in all strains belonging to the high virulence A-T1, A+T1, A+T2 and A+T3 supernatant groups and in one strain of the moderately virulent A-T3 group. The fimbriae were thin, flexible structures with a diameter of approximately 3-4 nm and a length of up to 700 nm. Fimbriae as described above were absent in two other A-T3 strains examined and in the low virulence A-T2 strains. Results from this study indicate that morphological differences in surface structure exist among virulent and low virulence pigeon S. gallolyticus strains, and that the capsule and/or fimbriae are possibly involved in virulence.  (+info)

Effects of (+)-HA-966, CGS-19755, phencyclidine, and dizocilpine on repeated acquisition of response chains in pigeons: systemic manipulation of central glycine sites. (6/1532)

The effects of i.m. injections of (+)-HA-966, a glycine-site antagonist at the N-methyl-D-aspartate (NMDA) subtype of the glutamate receptor, its enantiomer (-)-HA-966, the competitive glutamate antagonist CGS-19755, the uncompetitive glutamate antagonists phencyclidine and dizocilpine, and the micro opioid agonist morphine were evaluated in a repeated acquisition task in pigeons. All of the drugs produced dose-dependent decreases in rates of responding. The NMDA receptor and channel blockers and (+)-HA-966 appeared to have a greater effect on acquisition than did morphine at doses that did not fully suppress responding. The rate suppression and learning impairment produced by a large dose of (+)-HA-966 (100 mg/kg) were completely prevented by coadministration of the glycine-site agonist D-serine (560 mg/kg) but not by its enantiomer, L-serine (1000 mg/kg). D-Serine, however, produced incomplete antagonism of the effects of dizocilpine and phencyclidine and failed to alter those of CGS-19755. These findings provide evidence that reducing the activity of the NMDA subtype of the glutamate receptor through pharmacological action at any of three sites produces similar decrements in acquisition, and those produced through antagonism of the glycine site are differentially sensitive to the glycine-site agonist D-serine.  (+info)

Electrical response properties of avian lagena type II hair cells: a model system for vestibular filtering. (7/1532)

Data presented represent the first electrical recordings from avian lagena type II hair cells. The perforated-patch variant of the whole cell recording technique was used to investigate how the macroscopic currents shaped the voltage response of the hair cells. Voltage-clamp data separated cells into two broad classes on the basis of differences in activation rates, rates and degree of inactivation, and pharmacological sensitivity. Current-clamp recordings revealed low-quality membrane voltage oscillations (Qc < 1) during pulse current injections. Oscillation frequency correlated with activation rate of the macroscopic currents. The quality of membrane oscillations (Qc) varied linearly with frequency for cells with little inactivation. For cells with rapid inactivation, no relationship was found between Qc and frequency. Rapid inactivation may serve to extend the bandwidth of vestibular hair cells. The frequency measured from voltage responses to pulsed currents may reflect the corner frequency of the cell. The filtering properties of avian lagena hair cells are like those found in all other vestibular end organs, suggesting that the electrical membrane properties of these cells are not responsible for specializing them to a particular stimulus modality.  (+info)

The role of the response-reinforcer relation in delay-of-reinforcement effects. (8/1532)

The role of the response-reinforcer relation in maintaining operant behavior under conditions of delayed reinforcement was investigated by using a two-operandum (i.e., two-key) procedure with pigeons. Responding on one key was reinforced under a tandem variable-interval differential-reinforcement-of-other-behavior (tandem VI DRO) schedule. The schedule defined a resetting unsignaled delay-of-reinforcement procedure in that a response was required when the interfood interval of the VI schedule lapsed, but further responding during the DRO component on either key reset the time interval. This ensured a fixed delay duration between any response and reinforcement. Responding on another key, physically identical to the first one except for spatial location, otherwise was without consequence. The location of the key correlated with the delay-of-reinforcement procedure varied between sessions according to a semirandom sequence. Differences in response rates between the two keys were greater, with proportionally higher rates on the key correlated with the delay-of-reinforcement procedure, the longer the delay-of-reinforcement procedure remained correlated with the same key. Differences in responding on the two keys also increased within individual sessions. These results suggest that the response-reinforcer relation is the primary determinant of responding when responding is acquired and maintained with delayed reinforcement.  (+info)

Wikimedia Commons has media related to Columbidae. Wikispecies has information related to Columbidae. Look up Columbidae in ... "Pigeons and Doves (Columbidae) - Dictionary definition of Pigeons and Doves (Columbidae)". www.encyclopedia.com. "Zenaida ... Columbidae are excellent fliers due to the lift provided by their large wings, which results in low wing loading; They are ... Columbidae (/kəˈlʌmbɪdiː/) is a bird family consisting of doves and pigeons. It is the only family in the order Columbiformes. ...
Columbidae. Journal of the Royal Society of New Zealand 31:365-383. Clements, J. (2007). The Clements Checklist of the Birds of ...
Columbidae. Journal of the Royal Society of New Zealand 31:365-383. "Updates & Corrections - December 2009 , Clements Checklist ...
The kererū belongs to the family Columbidae, and the subfamily Ptilinopinae, which is found throughout Southeast Asia, Malaya, ... Columbidae) on islands in the New Zealand region". Journal of Biogeography. 38 (2): 285-298. doi:10.1111/j.1365-2699.2010.02414 ... Columbidae". Journal of the Royal Society of New Zealand. 31 (2): 365-383. doi:10.1080/03014223.2001.9517659. ISSN 0303-6758. " ...
The pink-necked green pigeon (Treron vernans) is a species of bird of the pigeon and dove family, Columbidae. It is a common ... Columbidae)". Handbook of the Birds of the World Alive. Barcelona: Lynx Edicions. Retrieved February 26, 2019. Robson, Craig ( ...
Columbidae to Coraciidae. CSIRO Publishing: Melbourne. ISBN 978-0-643-06037-1. p.93. Anon. (2007). Muir's Corella. (Fauna Note ...
Aves (Columbidae to Coraciidae). In, Houston, W.W.K. & Wells, A. (eds). Zoological Catalogue of Australia. Melbourne : CSIRO ...
Aves (Columbidae to Coraciidae). In, Houston, W.W.K. & Wells, A. (eds). Zoological Catalogue of Australia. Melbourne : CSIRO ...
Red junglefowl, Gallus gallus (I) Order: Columbiformes Family: Columbidae Pigeons and doves are stout-bodied birds with short ... Columbidae)". Birds of the World. Cornell Lab of Ornithology. doi:10.2173/bow.columb2.01. S2CID 216304444. Retrieved 16 April ...
Schodde, R.; & Mason, I.J. (1997). Aves (Columbidae to Coraciidae). In Houston, W.W.K. & Wells, A. (eds) Zoological Catalogue ...
Red junglefowl, Gallus gallus (I) Order: Columbiformes Family: Columbidae Pigeons and doves are stout-bodied birds with short ... Columbidae)". Birds of the World. Cornell Lab of Ornithology. doi:10.2173/bow.columb2.01. S2CID 216304444. Retrieved 2022-03-27 ...
1: Columbidae to Ploceidae. Slate Creek Press, Bolinas, CA. Olson, Storrs L.; James, Helen F. & Meister, Charles A. (1981). " ...
... is a genus of bird in the pigeon and dove family Columbidae. The genus is one of three genera known as cuckoo-doves ... Aves (Columbidae to Coraciidae). Vol. 37. CSIRO publishing. p. 23. ISBN 978-0-643-06037-1. Gill, Frank; Donsker, David; ...
Aves (Columbidae to Coraciidae). In, Houston, W.W.K. & Wells, A. (eds). Zoological Catalogue of Australia. Melbourne : CSIRO ...
Red junglefowl, Gallus gallus (I) Order: Columbiformes Family: Columbidae Pigeons and doves are stout-bodied birds with short ... Columbidae)". Birds of the World. Cornell Lab of Ornithology. doi:10.2173/bow.columb2.01. S2CID 216304444. Retrieved 2022-05-04 ...
Red junglefowl, Gallus gallus (I) Order: Columbiformes Family: Columbidae Pigeons and doves are stout-bodied birds with short ... Columbidae)". Birds of the World. Cornell Lab of Ornithology. doi:10.2173/bow.columb2.01. S2CID 216304444. Retrieved 29 ...
Aves (Columbidae to Coraciidae). Vol. 37. CSIRO publishing. pp. 25, 27. ISBN 978-0-643-06037-1. Gill, Frank; Donsker, David; ...
Aves (Columbidae to Coraciidae). Vol. 37. CSIRO publishing. p. 20. ISBN 978-0-643-06037-1. "Chapter 6: Validity of names and ...
"Mabo/Meriam Mir Words, Torres Strait Creole words". Baptista, L. F., P. W. Trail, & H. M. Horblit (1997). Family Columbidae ( ...
Baptista, L. F., P. W. Trail, & H. M. Horblit (1997). Family Columbidae (Pigeons and Dovexs). pp. 60-243 in: del Hoya, J., A. ...
columbidae) Kruger Park Birds & Birding". Thekruger.com. 2010-09-15. Retrieved 2012-08-24. Field Guide to the Birds of East ...
Family Columbidae (Pigeons and Doves". In del Hoyo, J.; Elliott, A.; Sargatal, J. (eds.). Handbook of the Birds of the World. ... The Polynesian ground dove (Pampusana erythroptera) is a critically endangered species of bird in the family Columbidae. It is ...
Part 2. Columbidae (pigeons) to Picidae (woodpeckers). Smithsonian Miscellaneous Collections. Vol. 150, part 2. Washington, D.C ...
The Sulu bleeding-heart (Gallicolumba menagei) is a species of bird in the pigeon and dove family, Columbidae. It is endemic to ... "Sulu Bleeding-heart". Baptista, Luis F.; Trail, P. W.; Horblit, H. M. (1997). "Family Columbidae (Pigeons and Doves)". In del ...
The Negros fruit dove (Ptilinopus arcanus) is a species of bird in the pigeon and dove family, Columbidae. It is endemic to the ... Baptista, Luis F.; Trail, P. W.; Horblit, H. M. (1997). "Family Columbidae (Pigeons and Doves)". In del Hoyo, Josep; Elliott, ...
Part 2. Columbidae (pigeons) to Picidae (woodpeckers). Smithsonian Miscellaneous Collections volume 150, part 2. Smithsonian ...
The Choiseul pigeon (Microgoura meeki) is an extinct species of bird in the pigeon and dove family, Columbidae. It was endemic ... Baptista, Luis F.; Trail, P. W.; Horblit, H. M. (1997). "Family Columbidae (Pigeons and Doves)". In del Hoyo, Josep; Elliott, ...
The fruit doves, also known as fruit pigeons, are a genus (Ptilinopus) of birds in the pigeon and dove family (Columbidae). ... including some observations on the Columbidae". Zoological Journal. 1: 463-484 [473-474]. Peters, James Lee, ed. (1937). Check- ...
... including some observations on the Columbidae". Zoological Journal. 1: 463-484 [479]. McAllan, Ian (2007). "On the Type ...
... including some observations on the Columbidae". Zoological Journal. 1: 463-484 [473-474]. Gill, Frank; Donsker, David; ...
Start Over You searched for: Subjects Columbidae ✖Remove constraint Subjects: Columbidae Publication Year 1900 to 1999 ✖Remove ...
Columbidae Bird In Flight Composite. December 6, 2013. September 21, 2012. by Krishna Mohan ... Columbidae, Columbiformes, Common Pigeon, Dakshina Kannada, Doves, India, Karnataka, Mangalore, Pigeon, Rock Dove, Rock Pigeon ... Columbidae, Columbiformes, Common Pigeon, Dakshina Kannada, Diplacodes, dragonfly, Guttu Mane, India, Insecta, Karnataka, ... Columbidae, Columbiformes, Common Pigeon, Coraciiformes, Critic forum, Dakshina Kannada, Diplacodes, dragonfly, Facebook group ...
Eine große Anzahl an Fotografien aus vielen Bereichen der Natur ...
in Columba livia Gmelin, 1789 (Columbiformes: Columbidae) free-living pigeons from urban areas in Pelotas, Rio Grande do Sul, ...
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Pigeons, Doves · Columbidae. 62.. Rock Dove · Columba livia. 63.. Stock Dove · Columba oenas. ...
Columbidae Columba livia Rock pigeon (1,3) Streptopelia decaocto Eurasian collared-Dove (2) Falconiformes Falconidae Falco ...
Family: Columbidae Genus: Streptopelia Species: S. chinensis Canon EOS 300D Digital Rebel ,Canon EF 400mm f/5.6L USM ...
2. Columbidae (pigeons and doves). 3. Estrildidae (Waxbills and allies). 4. Fringillidae (Finches and allies). 5. Ploceidae ( ...
Raphinae er en delgruppe i duefamilien (Columbidae) med i alt 30 eksisterende slekter.[1][2][3] Gruppen er videre søstergruppen ... a b c Baptista, L.F., Trail, P.W. & Horblit, H.M. (2020). Pigeons, Doves (Columbidae). In: del Hoyo, J., Elliott, A., Sargatal ... a b Winkler, D. W., S. M. Billerman, and I.J. Lovette (2020). Pigeons and Doves (Columbidae), version 1.0. In Birds of the ... Columbidae, duefamilien, 3 underfamilier, 2 tribus, 49 slekter (+ 2 utdødde) *Columbinae, 2 tribus og 15 slekter ...
Columbidae - / 2002 Myotis myotis Greater Mouse-Eared Bat Mammalia Chiroptera Vespertilionidae - / 1985 ...
Pigeons and Doves(Order: Columbiformes, Family: Columbidae). Rock Pigeon. White-crowned Pigeon ...
Familia: Columbidae. Subfamilia: Columbinae. Genus: Columba Species: C. albinucha - C. albitorques - C. argentina - C. ... ICZN (2010). Opinion 2251 (Case 3442) Columba norfolciensis Latham, 1801 (Aves, Columbidae): name suppressed. Bulletin of ...
Columbidae; Accipiter gentilis; Circus aeruginosus; Acryllium vulturinum; Gallus gallus; Perdix perdix; Phasianus colchicus; ...
Q fever is a widespread zoonosis caused by Coxiella burnetii, an obligate intracellular bacterium, which humans usually acquire through the inhalation of infected dust from subclinically infected mammals. Human infection commonly takes place when an infected mammal gives birth, since high concentrat …
MeSH Terms: Animals; Chlorpromazine/pharmacology*; Color Perception/drug effects; Columbidae; Conditioning, Operant/drug ...
Columbidae , genus = [[鹃鸠属]] Macropygia , species = 斑尾鹃鸠 M. unchall , binomial = Macropygia unchall , ...
Columbidae, Sulidae, Anatidae, Tyrannidae, Hirundinidae, Caprimulgidae, Passeridae, Polioptilidae, Stercorariidae, ...
Website © 2005-2023 Xeno-canto Foundation Recordings © the recordist. See recording details for license information. Sonogram images © Xeno-canto Foundation. Sonogram images share the same license terms as the recording they depict. Terms of use. Credits. ...
The family Columbidae is traditionally divided into several subfamilies, but later research indicates that these traditional ... Pigeons and doves comprise the family Columbidae. In everyday language the terms pigeon and dove are often used interchangeably ...
A somewhat large, chunky dove of dry scrub woodlands where it is typically found foraging on ground. Its plain plumage, the lack of white on the wings, and the very limited white on its tail, distinguish it from other doves on Grenada. Its song is a drawn out low, plaintive
... is a species of bird in the family Columbidae. It is monotypic within the genus Trugon. Native to New Guinea, its natural ...
Pagausoa (Columba palumbus) columbidae familiako hegaztia da[1]. Europako uso espezie ohikoena eta handiena da: pisua 460-570 g ...
Pigeons and Doves: Columbidae. 9. Rock Pigeon. Columba livia. 10. Pale-vented Pigeon. Patagioenas cayennensis. ...
Family : Columbidae Species : African Green Pigeon Geographic range by countries species pictures. by the author all the ...
7. Helminths parasitizing Columbina picui (Columbiformes: Columbidae) in Brazil.. Coimbra MA; Mascarenhas CS; Krüger C; Muller ...
The dove is a bird descended from the Columbidae family and the Columbiformes order. The names pigeon and dove are often used ... Pigeons are birds that belong to the Columbidae family. They are spread in most regions around the world, concentrated in South ...
Columbidae (Dove, Pigeon) (FooDB: FOOD00610). *Chicken (FooDB: FOOD00329). *Mallard duck (FooDB: FOOD00353) ...
Columbidae (Pigeons and Doves). ROCK PIGEON (Columba livia) - An introduced species that is readily seen in cities all over ...
  • Gmelin, 1789 (Columbiformes: Columbidae) free-living pigeons from urban areas in Pelotas, Rio Grande do Sul, Brazil. (bvsalud.org)
  • 7. Helminths parasitizing Columbina picui (Columbiformes: Columbidae) in Brazil. (nih.gov)
  • The dove is a bird descended from the Columbidae family and the Columbiformes order. (blogarama.com)
  • [10] [11] Columbidae yw'r unig deulu byw yn y drefn Columbiformes. (wikipedia.org)
  • Opinion 2251 (Case 3442) Columba norfolciensis Latham, 1801 (Aves, Columbidae): name suppressed. (wikimedia.org)
  • Pagausoa ( Columba palumbus ) columbidae familiako hegaztia da [1] . (wikipedia.org)
  • 1991). Por otra parte en muchas ocasiones la defensa de ambientes estuarinos se encuentra centrada en la importancia de éstos para las aves migratorias (Escofet et al. (gbif.org)
  • The family Columbidae is traditionally divided into several subfamilies, but later research indicates that these traditional subfamilies do not reflect the true relationship of the species. (aquaticcommunity.com)
  • The thick-billed ground pigeon , also known as the jungle pigeon or the slaty/grey ground pigeon , is a species of bird in the family Columbidae. (bsc-eoc.org)