Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 4
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
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
Imagem não selecionada

Imprime registro no formato completo
The effect of distance from pollinizer varieties on the fruit set on trees in plum and apple orchards National Institute of Agronomic Research
Free, J.B..
The fruit set on plum trees decreased greatly with increase in distance from pollinizer trees, and less so with increase in distance from honey-bee colonies. Trees adjacent to pollinizers had a greater set on the sides facing the pollinizers than on their far sides. Parts of trees touching "bouquets" had a greater set than parts without bouquets. In an apple orchard with main variety and pollinizer trees in separate blocks, the fruit set was greater on the main variety trees adjacent to the pollinizers than on trees farther away. In an apple orchard with a pollinizer tree as every third tree in every third row, main variety trees had a greater fruit set, more seeds per fruit, and more carpels with seeds per fruit, on the sides near to their adjacent...
Tipo: Journal Article-postprint Palavras-chave: ORCHARD; FRUIT TREE; PLUM; APPLE; POLLINATION; FRUIT SET; POLLINIZER; HIVE; DISTANCE; VERGER; ARBRE FUITIER; PRUNIER; POMMIER; POLLINISATION; NOUAISON; BOUQUET; RUCHE; DISTANCE.
Ano: 1962 URL: http://hdl.handle.net/2174/417
Imagem não selecionada

Imprime registro no formato completo
The flower constancy of honeybees National Institute of Agronomic Research
Free, J.B..
1. The flower constancy of honeybees on successive days has been studied by removing and identifying pollen collected by marked pollen-gatherers. Removing pollen from the bees decreased their tendency to collect it later; chilling the bees before marking did not influence their foraging behaviour; neither treatment affected their constancy to the kind of pollen collected. No sequence of nectar or pollen collection with age of bee, was found. 2. In each experiment most of the bees collected only a few of the pollens available to them. Bees collecting the most common pollens tended to be the most constant. In general, the proportion of bees collecting their original pollen decreased as the number of foraging days increased, and only about half were doing so...
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; POLLINATOR; PLANT-POLLINATEUR RELATIONSHIP; CONSTANCY; FORAGING BEHAVIOUR; ABEILLE DOMESTIQUE; INSECTE SOCIAL; RELATION PLANTE-POLLINISATEUR; CONSTANCE; BUTINAGE; COMPORTEMENT DE BUTINAGE.
Ano: 1963 URL: http://hdl.handle.net/2174/420
Imagem não selecionada

Imprime registro no formato completo
The respiratory metabolism of honey-bee colonies at low temperatures National Institute of Agronomic Research
Free, J.B.; Simpson, J..
Honigbienenvölker wurden im Winter aus ihren Stöcken genommen und in galvanisierten Eisenbehältern (Tanks) Temperaturen zwischen 20 und —39° C ausgesetzt. Das Kohlendioxyd der aus den Behältern abgesogenen Luft wurde absorbiert und gewogen. Die CO2-Produktion sank, wenn die Temperatur von 20 auf 10° erniedrigt wurde und stieg bei niederen Temperaturen wieder an. Diese Veränderungen verliefen in umgekehrter Richtung, wenn die Temperatur erhöht wurde.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; BEHAVIOUR; TEMPERATURE; THERMOREGULATION; RESPIRATORY METABOLISM; CO2; ABEILLE DOMESTIQUE; INSECTE SOCIAL; COMPORTEMENT; TEMPERATURE; THERMOREGULATION; METABOLISME RESPIRATOIRE; CO2.
Ano: 1963 URL: http://hdl.handle.net/2174/456
Registros recuperados: 4
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional