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Registros recuperados: 13
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Discharge and manipulation of labial gland secretion by workers of Apis mellifera L. (Hymenoptera : Apidae) National Institute of Agronomic Research
Simpson, J.; Riedel, Inge B.M..
An account is given of the salivation process in Apis mellifera. The mechanisms by which the hairs of the tongue are erected and the ligula retracted, and the action of the salivary pump, are described, and their effect on the discharge of saliva and intake of food are discussed.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; WORKER; LABIAL GLAND; TONGUE; HAIR; LIGULA; SLIVARY PUMP; FOOD INTAKE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; OUVRIERE; GLANDE LABIALE; ANATOMIE; LANGUE; POIL; LIGULA; POMPE SALIVAIRE; PRISE DE NOURRITURE.
Ano: 1964 URL: http://hdl.handle.net/2174/470
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E-beta-Ocimene, a volatile brood pheromone involved in social regulation in the honey bee colony (Apis mellifera) Inra
Maisonnasse, A.; Lenoir, J.C.; Beslay, D.; Crauser, D.; Le Conte, Y..
Background: In honey bee colony, the brood is able to manipulate and chemically control the workers in order to sustaintheir own development. A brood ester pheromone produced primarily by old larvae (4 and 5 days old larvae) was firstidentified as acting as a contact pheromone with specific effects on nurses in the colony. More recently a new volatile broodpheromone has been identified: E-b-ocimene, which partially inhibits ovary development in workers.Methodology and Principal Finding: Our analysis of E-b-ocimene production revealed that young brood (newly hatched to3 days old) produce the highest quantity of E-b-ocimene relative to their body weight. By testing the potential action of thismolecule as a non-specific larval signal, due to its high...
Tipo: Journal Article Palavras-chave: ABEILLE DOMESTIQUE; INSECTE SOCIAL; PHEROMONE; COUVAIN; DEVELOPPEMENT OVARIEN; OUVRIERE HONEYBEE; SOCIAL INSECT; BROOD; OVARIAN DEVELOPMENT; WORKER.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201063cc6c9f&uri=/notices/prodinra1/2010/12/
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Ecuatorianos en España : historia de una inmigración reciente (Tema Central) Buscador Latinoamericano
Gómez Ciriano, Emilio J..
En un contexto como el ecuatoriano de “hambre de pan y horizontes”, la emigración hacia el exterior se plantea como una opción válida, máxime cuando los medios de comunicación proyectan imágenes de un primer mundo opulento y con futuro, y las noticias de los familiares y amigos que han emigrado al exterior contribuyen, en muchos casos, a alimentar esa ilusión.
Tipo: Artículo Palavras-chave: MIGRACIÓN; INMIGRACIÓN; GUERRA; TRABAJADOR; MESTIZO; INDÍGENA; CRISIS; POLÍTICA; GOBIERNO; INDIFERENCIA; DIVERSIDAD; CULTURA; MIGRATION; IMMIGRATION; WAR; WORKER; MESTIZO; INDIAN; CRISIS; POLITIC; GOVERNMENT; INDIFFERENCE; DIVERSITY; CULTURE; EL ORO; LOJA; ECUADOR; ESPAÑA.
Ano: 2001 URL: http://hdl.handle.net/10469/4893
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Ecuatorianos en España : historia de una inmigración reciente (Tema Central) Buscador Latinoamericano
Gómez Ciriano, Emilio J..
En un contexto como el ecuatoriano de “hambre de pan y horizontes”, la emigración hacia el exterior se plantea como una opción válida, máxime cuando los medios de comunicación proyectan imágenes de un primer mundo opulento y con futuro, y las noticias de los familiares y amigos que han emigrado al exterior contribuyen, en muchos casos, a alimentar esa ilusión.
Tipo: Artículo Palavras-chave: MIGRACIÓN; INMIGRACIÓN; GUERRA; TRABAJADOR; MESTIZO; INDÍGENA; CRISIS; POLÍTICA; GOBIERNO; INDIFERENCIA; DIVERSIDAD; CULTURA; MIGRATION; IMMIGRATION; WAR; WORKER; MESTIZO; INDIAN; CRISIS; POLITIC; GOVERNMENT; INDIFFERENCE; DIVERSITY; CULTURE; EL ORO; LOJA; ECUADOR; ESPAÑA.
Ano: 2001 URL: http://hdl.handle.net/10469/4893
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Galo Chiriboga Zambrano : "La existencia misma de un puesto de trabajo es un interés compartido entre el empleador y trabajador" (La Palabra) Buscador Latinoamericano
Rivas, Patricio.
Galo Chiriboga es Presidente de la rama ecuatoriana de la Asociación Americana de Juristas –AAJ– y es una figura reconocida en los temas del mundo del trabajo. En los últimos años se ha desempeñado en el escenario político del país, primeramente como Ministro del Trabajo, de Gobierno y como presidente de PETROECUADOR durante la administración del Presidente Alfredo Palacio. Posteriormente, fue Ministro de Minas y Petróleos en el gobierno del actual Presidente Rafael Correa. No obstante, sobresale su larga experiencia en el tema de las relaciones laborales, como también su perspectiva crítica y modernizadora en relación con el tema.
Tipo: Artículo Palavras-chave: TRABAJADOR; EMPLEADOR; POLITICA SOCIAL; GOBIERNO; ECUADOR; WORKER; EMPLOYER; GOVERNMENT.
Ano: 2011 URL: http://hdl.handle.net/10469/2879
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Occurence of ovary-developed workers in queenright colonies of stingless bees National Institute of Agronomic Research
Sakagami, Shoichi F.; Beig, Darvin; Zucchi, Ronaldo; Akahira, Yukio.
The worker ovaries of 16 species of stingless bees and two subspecies of European honeybee were studied under the queenright condition. In contrast to the honeybee, which showed, as already well known, no trace of ovary-development, the ovary-developed workers were observed in the nurse bee stage of ail stingless bee species, in a very high frequency, except for Trigona freiremaiai (Moure), T. (Meliponula) bocandei (Spinola) and T. (Partamona) cupira Smith. In the observation in T. (Scaptotrigona) postica Latreille, the ovaries were still rudimentary at emergence, developed at the stage of nurse bee in parallel to the pollen intake, then degenerated in the subsequent stages. Histologically, the ovary development follows the manner seen in other polytropic...
Tipo: Journal Article-postprint Palavras-chave: STINGLESS BEE; MELIPONINI; WORKER; OVARY; MELIPONINI; ABEILLE MELIPONE; OUVRIERE; OVAIRE.
Ano: 1963 URL: http://hdl.handle.net/2174/483
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Respiration rates of larvae of drone and worker honey bees, Apis mellifera L. National Institute of Agronomic Research
Allen, M. Delia.
The oxygen consumptions of drone and worker honey bee larvae were determined at 32. over the period between hatching 1Ind the sealing of the cells prior to pupation. A decrease in respiration rates with increasing age was found in both drone and worker larvae when the rates were calculated 011 a unit weight basis, but in both castes the oxygen consumption per larva rose rapidly in the period following hatching, subsequently increasing less rapidly. Drone larvae consumed greater amounts of oxygen than worker larvae of the same weight, and this was apparently linked with their more rapid increase in weight.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; LARVAE; DRONE; WORKER; RESPIRATORY RATE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; LARVE; FAUX BOURDON; FREQUENCE RESPIRATOIRE; RESPIRATION.
Ano: 1959 URL: http://hdl.handle.net/2174/489
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Respiration rates of worker honeybees of different ages and at different temperatures National Institute of Agronomic Research
Allen, M. Delia.
1. The respiration rates of individual adult worker bees confined in small gauze cages were determined over a range of temperatures between 7 and 46° C. The respiration rates usually remained constant over a period of 1 hr., although at 7, 12° C., and possibly at 17° C. there were indications of a decrease with time, and at 42 and 46° C. indications of an increase with time. Fluctuations which would have reflected variable activity during any of the experiments were rare. 2. At each temperature studied the respiration rates increased progressively from the youngest adults (newly emerged) to the oldest measured (24-33 days). The increase was particularly marked during the first few days of adult life. 3. The respiration rates of newly emerged and 18 hr....
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; WORKER; AGE; TEMPERATURE; RESPIRATION RATE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; OUVRIERE; AGE; TEMPERATURE; FREQUENCE RESPIRATOIRE; RESPIRATION.
Ano: 1958 URL: http://hdl.handle.net/2174/487
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The behaviour of worker honeybees at the hive entrance National Institute of Agronomic Research
Butler, C.G.; Free, J.B..
1. Observations at hive entrances have been made to ascertain the relative importance of scent and behaviour in enabling a guard bee to recognise members of her own colony and to distinguish them from intruders from other colonies. 2. Guard bees are not present at the hive entrance unless the colony has been alerted. 3. Alerting of colonies is brought about by the presence of robber bees or by numbers of bees that have strayed from other colonies. 4. Guard bees attempt to intercept and inspect other bees on the alighting-board of the hive. Bees of various ages undertake guard duties. 5. Guard bees recognise members of their own colony by scent. 6. Robber bees are recognised by behaviour when attempting to enter the hive, but all other intruders are...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; SOCIAL INSECT; POLLINATOR; HYMENOPTERA; APOIDEA; APIDAE; APIS MELLIFERA; WORKER; BEHAVIOUR; ALERT; GUARD BEE; ANIMAL SOCIETY; ODOUR; OLFACTION; ABEILLE DOMESTIQUE; INSECTE SOCIAL; POLLINISATEUR; HYMENOPTERA; APOIDEA; APIS MELLIFERA; APIDAE; OUVRIERE; COMPORTEMENT; SOCIETE ANIMALE; GARDIENNE; ODEUR; OLFACTION.
Ano: 1952 URL: http://hdl.handle.net/2174/361
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The control of ovary development in worker honeybees (Apis mellifera) National Institute of Agronomic Research
Butler, C.G..
Während Übereinstimmung darüber erreicht worden ist, dass die Arbeitsbienen eine ovarienhemmende Substanz von ihren Königinnen erhalten, ist es weder klargestellt worden, wie diese Substanz unter die Arbeitsbienen verteilt wird, noch ob die Königin eine psychische Wirkung auf sie ausübt. Wenn die Versuchsresultate vonVoogd undButler sowie die Resultate dieser Arbeit zusammen betrachtet werden, scheint es klar, dass ein Extrakt dieser Substanz, wenn er an weisellose Arbeiterinnenverfüttert wird, eine deutliche Hemmwirkung auf die Ovarienentwicklung ausübt. Die Versuchsresultate deuten jedoch darauf hin, dass diese Substanz wirkungsvoller ist, wenn sie den Arbeitsbienen auf dem Körper einer toten Biene, oder dem Modell einer Biene, dargeboten wird, als wenn...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; WORKER; OVARY; DEVELOPMENT; INHIBITION; QUEEN; PHEROMONE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; OUVRIERE; OVAIRE; DEVELOPPEMENT; INHIBITION; REINE; PHEROMONE.
Ano: 1957 URL: http://hdl.handle.net/2174/410
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The effect of mandibular gland extirpation on the longevity and attractiveness of workers of queen honey bees, apis mellifera National Institute of Agronomic Research
Zmarlicki, Cyprian; Morse, Roger A..
The mandibular glands were extirpated from 6 of 12 mated, sister queen honey bees, 1 month old. Two of the modified and five of the untreated queens survived after being held for about 11 months in otherwise normal colonies. The modified queens were almost completely unattractive to worker bees at the end of the experiment. The brood quantity and quality in the colonies headed by modified queens was not very dissimilar from those found in the check colonies.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; QUEEN; MANDIBULAR GLAND; REMOVAL; LONGEVITY; WORKER; ATTRACTIVENESS; ABEILLE DOMESTIQUE; INSECTE SOCIAL; REINE; GLANDE MANDIBULAIRE; EXTRACTION; LONGEVITE; OUVRIERE; ATTRACTIVITE.
Ano: 1964 URL: http://hdl.handle.net/2174/436
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The occurrence and possible significance of the "shaking" of honeybee queens by the workers National Institute of Agronomic Research
Allen, M. Delia.
1. The phenomenon of "shaking" in honeybee colonies is described, and is here considered in relation to the queen of the colony. 2. The queen was rarely shaken in the spring but once swarm preparations had commenced the frequency of shaking rose rapidly, reaching a peak at about the time the swarm left. A newlymated young queen was shaken to some extent just after she first commenced laying, but within a few days the frequency had fallen markedly, and finally no shaking was observed. Since the queens were shaken only at times when they were likely to fly out of the hive it is concluded that there is a connection between the two events. Hammann (1957) gives results on unmated queens which also support this assumption, for these queens were shaken with...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; QUEEN; WORKER; SOCIAL BEHAVIOUR; COMMUNICATION; SHAKING; FREQUENCY; DURATION; ABEILLE DOMESTIQUE; INSECTE SOCIAL; REINE; OUVRIERE; COMPORTEMENT SOCIAL; COMMUNICATION ANIMALE; VIBRATION; FREQUENCE; DUREE.
Ano: 1959 URL: http://hdl.handle.net/2174/338
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The transmission of food between worker honeybees National Institute of Agronomic Research
Free, J. B..
1. A study has been made of the behaviour patterns associated with food transmission between worker honeybees. 2. There is a general tendency for food to pass from the older to the younger workers of a colony, although there is a considerable passage of food in the opposite direction. Younger bees generally receive food more frequently than they give it. 3. As worker bees grow older, the mean ages of the bees that feed them and to whom they give food also increase. 4. Although bees about to give food generally have more in their honeystomachs than those about to receive it the quantities of food contained in the honeystomachs of bees in these two groups overlap considerably. The transmission of ‘queen substance’, the occupation on which a bee is...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; WORKER; FOOD; TROPHALLAXIS; ABEILLE DOMESTIQUE; INSECTE SOCIAL; OUVRIERE; NOURRITURE; TROPHALLAXIE.
Ano: 1957 URL: http://hdl.handle.net/2174/342
Registros recuperados: 13
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