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| Registros recuperados: 43 | |
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| Vaissière, B.; Gallai, N.; Carré, G.; Bommarco, R.; Krewenka, K.; Morison, N.; Potts, S.G.; Roberts, S.P.M.; Steffan-Dewenter, I.; Salles, J.M.; Szentgyörgyi, H.; Westphal, C.; Woyciechowski, M.; Queen's University Belfast (GBR). |
| In Europe, 80% of crop species are dependent upon or benefit from pollination by insects, and mostly bees. Insect pollination is both a major ecosystem service that contributes to human well-being and a production practice used by farmers. Wild bees contribute to the pollination of most crop species and their importance are increasingly recognised since their foraging activity as well as their interaction with honey bees can significantly enhance the overall pollinating activity. Yet significant declines have been reported for wild bee populations and honey bee colonies alike in Europe.We quantified the relative importance of autonomous self-pollination, wind pollination and the pollination service provided by insects in annual entomophilous field crops... |
| Tipo: Conference Paper |
Palavras-chave: POLLINISATEUR; DECLIN; ECOSYSTEME; POLLINATOR; DECLINE; ECOSYSTEM. |
| Ano: 2008 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009cfc41ca6&uri=/notices/prodinra1/2009/06/ |
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| Meynié, S.; Bernard, R.. |
| Sur trois populations d’origine sauvage du genre tournesol, Helianthus annuus, Helianthus argophyllus et Helianthus debilis spp cucumerifolius, l’efficacité de la pollinisation manuelle a été comparée à celle de la pollinisation libre sur des plantes cultivées en pots (témoin) et en plein champ. Ces méthodes ont été comparées à la pollinisation en cage utilisant l’abeille Apis mellifera, le bourdon Bombus terrestris, le mégachile Megachile rotundata et des mouches bleues Calliphora spp. Quelle que soit l’espèce végétale, la méthode manuelle de croisement est toujours celle qui donne le moins de graine : 34 akènes par capitule, alors que la pollinisation libre en plein champ est la plus productive avec 150 akènes. Sur des plantes en pots, la production... |
| Tipo: Journal Article |
Palavras-chave: HELIANTHUS; APIS MELLIFERA; BOMBUS TERRESTRIS; MEGACHILE ROTUNDATA; CALLIPHORA; POLLINISATEUR; EXPERIMENTATION EN POT; RELATION PLANTE ANIMAL. |
| Ano: 1997 |
URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB9700008266063102&uri=/notices/prodinra1/2010/02/ |
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| Butler, C.G.; Finney, D.J.; Schiele, P.. |
| Losses of bees by poisoning have been greatly increased in recent years by the growing practice of applying insecticidal and fungicidal sprays to fruit trees. Preliminary laboratory tests showed that, of the common constituents of spray mixtures, only lead arsenate and flowers of sulphur were likely to cause serious honeybee poisoning, though Derris emulsion may cause slight poisoning. Syrup containing lime sulphur, nicotine sulphate, or copper sulphate was strongly repellent to the bees. It seemed possible that spray mixtures might be made repellent to the honeybee by the addition of suitable substances. Further trials showed that lead arsenate solution, at least in the concentrations normally used, was no more attractive to the bee than distilled water.... |
| Tipo: Journal Article-postprint |
Palavras-chave: HONEYBEE; SOCIAL INSECT; POLLINATOR; HYMENOPTERA; APOIDEA; APIDAE; APIS MELLIFERA; POISONING; INSECTICIDE; FUNGICIDE; LABORATORY TEST; DEVICE; LEAD ARSENATE; SULPHUR; LIME SULPHUR; NICOTINE SULPHATE; REPELLENT; CALCIUM ARSENATE; ORCHARD; APPLE; LETHAL DOSE; TOXICITY; WATER; ABEILLE DOMESTIQUE; INSECTE SOCIAL; POLLINISATEUR; HYMENOPTERA; APOIDEA; APIS MELLIFERA; APIDAE; INTOXICATION; INSECTICIDE; FONGICIDE; ETUDE EN LABORATOIRE; APPAREILLAGE; ARSENIATE DE PLOMB; SOUFRE; CHAUX DE SOUFRE; SULFATE DE NICOTINE; REPULSIF; ARSENIATE DE CALCIUM; VERGER; POMMIER; DOSE LETALE; TOXICITE; EAU. |
| Ano: 1943 |
URL: http://hdl.handle.net/2174/358 |
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| Butler, C.G.; Finney, D.J.; Schiele, P.. |
| Losses of bees by poisoning have been greatly increased in recent years by the growing practice of applying insecticidal and fungicidal sprays to fruit trees. Preliminary laboratory tests showed that, of the common constituents of spray mixtures, only lead arsenate and flowers of sulphur were likely to cause serious honeybee poisoning, though Derris emulsion may cause slight poisoning. Syrup containing lime sulphur, nicotine sulphate, or copper sulphate was strongly repellent to the bees. It seemed possible that spray mixtures might be made repellent to the honeybee by the addition of suitable substances. Further trials showed that lead arsenate solution, at least in the concentrations normally used, was no more attractive to the bee than distilled water.... |
| Tipo: Journal Article-postprint |
Palavras-chave: HONEYBEE; SOCIAL INSECT; POLLINATOR; HYMENOPTERA; APOIDEA; APIDAE; APIS MELLIFERA; POISONING; INSECTICIDE; FUNGICIDE; LABORATORY TEST; DEVICE; LEAD ARSENATE; SULPHUR; LIME SULPHUR; NICOTINE SULPHATE; REPELLENT; CALCIUM ARSENATE; ORCHARD; APPLE; LETHAL DOSE; TOXICITY; WATER; ABEILLE DOMESTIQUE; INSECTE SOCIAL; POLLINISATEUR; HYMENOPTERA; APOIDEA; APIS MELLIFERA; APIDAE; INTOXICATION; INSECTICIDE; FONGICIDE; ETUDE EN LABORATOIRE; APPAREILLAGE; ARSENIATE DE PLOMB; SOUFRE; CHAUX DE SOUFRE; SULFATE DE NICOTINE; REPULSIF; ARSENIATE DE CALCIUM; VERGER; POMMIER; DOSE LETALE; TOXICITE; EAU. |
| Ano: 1943 |
URL: http://hdl.handle.net/2174/358 |
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| Registros recuperados: 43 | |
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