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Registros recuperados: 7
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Etude de différents stress chez l’abeille : le cas des glandes hypopharyngiennes Inra
Baldy, A..
Depuis quelques années nous avons pu voir une hécatombe des abeilles et nos différentesexpériences ont tenté de répondre au problème de la mortalité des abeilles (Apis mellifera). Apartir de ce constat, nous avons voulu tester les effets de quelques stress sur différentsparamètres notamment sur les glandes hypopharyngiennes qui sont importantes pour nourrirles larves. Lors de notre première expérience, nous avons testé la mortalité des abeilles face àdifférents paramètres tels qu’un pesticide, l’imidaclopride et une microspore nomméeNosema. Grâce à cette expérience nous avons observé que ces deux paramètres avaient uneinfluence sur la mortalité observée. Par la suite, nous avons voulu examiner ce qui se passé auniveau des glandes hypopharyngiennes, si nous...
Tipo: Thesis Palavras-chave: ABEILLE DOMESTIQUE; INSECTE SOCIAL; MORTALITE; GLANDE HYPOPHARYNGIENNE; TAILLE; PROTEINE; INSECTICIDE; IMIDACLOPRIDE; NEONICOTINOIDE; STRESS; MICROSPORIDIE HONEYBEE; SOCIAL INSECT; MORTALITY; HYPOPHARYNGEAL GLAND; SIZE; PROTEIN; IMIDACLOPRID; NEONICOTINOID; MICROSPRORIDIA.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010df18f33f&uri=/notices/prodinra1/2010/12/
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Factors affecting queen losses in package bees National Institute of Agronomic Research
Furgala, B..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; QUEEN; IMPORTATION; PACKAGE; MORTALITY; SURVEY; NOSEMA; MICROSPORIDIA; DISEASE; OVARY; SPERM; ABEILLE DOMESTIQUE; INSECTE SOCIAL; REINE; IMPORTATION; LOT; MORTALITE; ENQUETE; NOSEMA; MICROSPORIDIE; MALADIE; OVAIRE; SPERME.
Ano: 1962 URL: http://hdl.handle.net/2174/440
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Growth and mortality of naturally regenerated beech seedlings in relationships with canopy closure and seedling density Inra
Collet, C.; Ningre, F.; Constant, T..
Tipo: Meeting Paper Palavras-chave: REGENERATION NATURELLE; CROISSANCE; ACCROISSEMENT DU DIAMETRE; FACTEUR DU MILIEU; LUMIERE; DENSITE POPULATION; COMPETITION; OUVERTURE DU COUVERT GROWTH; MORTALITY; NATURALLY REGENERATED; BEECH.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200799620db2&uri=/notices/prodinra1/2008/06/
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Interactions between Nosema microspores and a neonicotinoid weaken honeybees (Apis mellifera) Inra
ALAUX, C.; Brunet, J.L.; Dussaubat, C.; Mondet, F.; Tchamitchian, S.; Cousin, M.; Brillard, J.; Baldy, A.; Belzunces, L.; Le Conte, Y..
Global pollinators, like honeybees, are declining in abundance and diversity, which can adversely affect natural ecosystems and agriculture. Therefore, we tested the current hypotheses describing honeybee losses as a multifactorial syndrome, by investigating integrative effects of an infectious organism and an insecticide on honeybee health. We demonstrated that the interaction between the microsporidia Nosema and a neonicotinoid (imidacloprid) significantly weakened honeybees. In the short term, the combination of both agents caused the highest individual mortality rates and energetic stress. By quantifying the strength of immunity at both the individual and social levels, we showed that neither the haemocyte number nor the phenoloxidase activity of...
Tipo: Journal Article Palavras-chave: ABEILLE DOMESTIQUE; SANTE; MICROSPORIDIE; INSECTICIDE; NEONICOTINOIDE; IMIDACLOPRIDE; SYNERGIE; MORTALITE; STRESS ENERGETIQUE; IMMUNITE INDIVIDUELLE; IMMUNITE DE LA COLONIE; LUTTE INTEGREE HONEYBEE; HEALTH; MICROSPORIDIA; NEONOCOTINOID; IMIDACLOPRID; SYNERGY; MORTALITY; ENERGETIC STRESS; INDIVIDUAL IMMUNITY; SOCIAL IMMUNITY; GLUCOSE OXIDASE; IPM.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010b2d84f1e&uri=/notices/prodinra1/2010/11/
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Mortality of the honey bee, Apis mellifera, in colonies treated with certain biological insecticides National Institute of Agronomic Research
Cantwell, George E.; Knox, David A.; Lehnert, Thor; Michael, A.S..
Candidate insect pathogens were fed at various levels to honey bees (Apis mellifera) either in small cages or in observation hives. The pathogens tested included two polyhedrosis viruses, a granulosis virus, a commercial preparation of Bacillus thuringiensis var. thuringiensis, spores, crystals, and the exotoxin of this variety, plus the crystals of varieties alesti and sotto. No mortality was recorded as a result of treatment with any of these pathogens except with the highest level of the exotoxin of B. thuringiensis.
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; MORTALITY; BIOLOGICAL INSECTICIDE; BIOLOGICAL CONTROL; PATHOGEN; EXOTOXIN; BACILLUS THURINGIENSIS VAR. THURINGIENSIS; ABEILLE DOMESTIQUE; INSECTE SOCIAL; MORTALITE; INSECTICIDE BIOLOGIQUE; LUTTE BIOLOGIQUE; AGENT PATHOGENE; EXOTOXINE; BACILLUS THURINGIENSIS VAR . THURINGIENSIS.
Ano: 1966 URL: http://hdl.handle.net/2174/369
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The natural incidence of Acarapis woodi (rennie) and the winter mortality of honeybee colonies National Institute of Agronomic Research
Bailey, L..
Tipo: Journal Article-postprint Palavras-chave: HONEYBEE; APIS MELLIFERA; APIDAE; HYMENOPTERA; SOCIAL INSECT; MORTALITY; WINTER; ACARAPIS WOODI; ACARI; PARASITE; RESPIRATORY SYSTEM; DISEASE; ABEILLE DOMESTIQUE; INSECTE SOCIAL; MORTALITE; HIVER; ACARAPIS WOODI; PARASITE; APPAREIL RESPIRATOIRE; MALADIE.
Ano: 1961 URL: http://hdl.handle.net/2174/507
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Varroa mites and honey bee health : can Varroa explain part of the colony losses ? Inra
Le Conte, Y.; Ellis, M.; Ritter, W..
Since 2006, disastrous colony losses have been reported in Europe and North America. The causes of the losses were not readily apparent and have been attributed to overwintering mortalities and to a new phenomenon called Colony Collapse Disorder. Most scientists agree that there is no single explanation for the extensive colony losses but that interactions between different stresses are involved. As the presence of Varroa in each colony places an important pressure on bee health, we here address the question of how Varroa contributes to the recent surge in honey bee colony losses
Tipo: Journal Article Palavras-chave: ABEILLE DOMESTIQUE; INSECTE SOCIAL; PARASITE; RELATION HOTE PARASITE; ACARICIDE; SANTE; HIVER; MORTALITE; SYNERGIE; GESTION DU RUCHER  HONEYBEE; SOCIAL INSECT; HOST PARASITE RELATIONSHIP; HEALTH; WINTER; MORTALITY; CCD; COLONY COLLAPSE DISORDER; COLONY MANAGEMENT.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20108f169b2d&uri=/notices/prodinra1/2011/03/
Registros recuperados: 7
Primeira ... 1 ... Última
 

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