Academic literature on the topic 'Abeilles – Effets des pesticides'
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Journal articles on the topic "Abeilles – Effets des pesticides":
M, J. M. "Pesticides, ennemis publics… des abeilles ?" Revue Francophone des Laboratoires 2014, no. 463 (June 2014): 88. http://dx.doi.org/10.1016/s1773-035x(14)72534-1.
CHARLIER, C., and G. PLOMTEUX. "EFFETS PERTURBATEURS ENDOCRINIENS DES PESTICIDES ORGANOCHLORES." Acta Clinica Belgica 57, sup1 (January 2002): 2–7. http://dx.doi.org/10.1179/acb.2002.068.
Gamet-Payrastre, Laurence. "Effets physiopathologiques des mélanges de pesticides." Cahiers de Nutrition et de Diététique 46, no. 2 (April 2011): 82–85. http://dx.doi.org/10.1016/j.cnd.2011.02.003.
Gamet-Payrastre, Laurence, and Céline Lukowicz. "Les effets des mélanges de pesticides." Cahiers de Nutrition et de Diététique 52, no. 5 (November 2017): 234–38. http://dx.doi.org/10.1016/j.cnd.2017.03.002.
Aribi, Nadia, Béatrice Denis, Samira Kilani-Morakchi, and Dominique Joly. "L’azadirachtine, un pesticide naturel aux effets multiples." médecine/sciences 36, no. 1 (January 2020): 44–49. http://dx.doi.org/10.1051/medsci/2019268.
Narbonne, J. F. "Les pesticides ont-ils des effets sur la santé ?" Sciences des Aliments 28, no. 3 (June 28, 2008): 213–21. http://dx.doi.org/10.3166/sda.28.213-221.
Labadie, Magali, and Franck Saint-Marcoux. "Pesticides : quelles expositions et quels effets sur la santé humaine ?" Toxicologie Analytique et Clinique 33, no. 3 (September 2021): S24. http://dx.doi.org/10.1016/j.toxac.2021.06.022.
Bacon, Marie-Hélène, Louise Vandelac, and Sébastien Petrie. "Pesticides: Le Talon d’Achille des politiques alimentaires canadiennes et québécoises." Canadian Food Studies / La Revue canadienne des études sur l'alimentation 5, no. 3 (September 30, 2018): 153–81. http://dx.doi.org/10.15353/cfs-rcea.v5i3.274.
Decourtye, Axel, Cyril Vidau, Orianne Rollin, Fabrice Requier, Charlotte Rüger, Fabrice Allier, Violette Le Féon, et al. "Fréquentation des cultures par les abeilles mellifères et sauvages : synthèse des connaissances pour réduire le risque d’intoxication aux pesticides." Cahiers Agricultures 25, no. 4 (July 2016): 44001. http://dx.doi.org/10.1051/cagri/2016025.
De Graaf, Lucie, Mathilde Bureau, Elsa Robelot, Mathilde Boulanger, Pierre Lebailly, and Isabelle Baldi. "Exposition aux pesticides et effets de santé chez les travailleurs en espaces verts." Santé Publique Vol. 34, HS1 (July 11, 2022): 12d. http://dx.doi.org/10.3917/spub.220.0012d.
Dissertations / Theses on the topic "Abeilles – Effets des pesticides":
Coulon, Marianne. "Rôle des intéractions virus/ pesticides dans le déclin des abeilles." Thesis, Avignon, 2017. http://www.theses.fr/2017AVIG0340/document.
Domestic honeybees are suffering from unprecedented colony losses, which could at term have a strong economic impact, considering their part in crop pollination, notably. These losses are defined as caused by multifactorial stresses. However, the impact of these stresses is usually measured separately, on individuals or colonies. Colonies are known to concentrate pesticides from their environment through collection of pollen and nectar, but they also concentrate pathogens. The study of a co-exposure between thiamethoxam, a neonicotinoid insecticide, and two honeybee viruses, DWV and CBPV, has shed light on the existence of interactions between each of these viruses and the pesticide. Different virus transmission methods have been tested to be as close as natural conditions, and a repeatable CBPV transmission method through contact has been developed. Metabolisation kinetics of thiamethoxam have been obtained for the first time, underlining the strong probability for excretion of the metabolite in natural conditions. During caged experiments, the co-exposure experiments between thiamethoxam at high chronic doses and CBPV cause synergistic mortalities, or an increase in viral loads which reached the number of viral copies threshold associated with clinical signs in bees. The varying results between bees from colonies kept in different conditions underlined a stress tolerance effect yet to be studied in the honeybee. In parallel, co-exposure in colonies between sublethal doses of thiamethoxam and DWV caused extremely precocious first foraging trips in bees, as well as large proportions of bees never returning to the hive after their firs exit, which both could in the end have a devastating effect on the colonies. The study of gene transcripts suggests that the obtained effects on CBPV viral loads could be due to a negative effect of thiamethoxam on dorsal-1a, an immune factor, and the precocious trips to a significant down-regulation of vitellogenin, which takes part in honeybee aging, cause by DWV. The development of molecular clones of DWV and a DWV recombinant was initiated, which will in the future allow for reverse genetics studies on this virus, which will help explain their transmission and infection mechanisms that are still unknown to this day
Sukkar, Dani. "Role of Nosema cerenae and pesticides on the decline of bees : Studies using a multifactorial approach : “Tipping the scale of honeybee immune responses - The effect of pesticides on immune-stimulation mimicking Nosema spp.”." Electronic Thesis or Diss., Université de Lorraine, 2023. http://www.theses.fr/2023LORR0086.
Honeybee are facing the global threat of colony collapse disorder (CCD) leading colony deaths and decline in their numbers affecting their environmental and agronomic contribution in pollination of plants and commercial crops in addition to honey production. Pesticide exposure may be of the main causes leading to CCD by weakening the immune system of honeybees and impairing their immune responses. Nosemosis diseases caused by Nosema spp. may have a significant contribution to CCD when bees are exposed to different pesticides simultaneously. Multiple risk factors are assessed in this study including the most used neonicotinoids worldwide, imidacloprid and amitraz which is the pesticide used directly in contact with honeybees to treat mite infection. Th effect of these pesticides is evaluated at the level of immune stimulation by zymosan A to mimic Nosema infection. The effect of pesticides on antimicrobial cells products, cellular responses and related genes' expression are demonstrated
Lambert, Olivier. "Contamination chimique de matrices apicoles au sein de ruchers appartenant à des structures paysagères différentes." Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2012. http://tel.archives-ouvertes.fr/tel-00833765.
Renzi, Maria Teresa. "Effects of pesticides on honey bees (Apis mellifera L.) : study of a specific route of exposure and evaluation of biochemical-physiological changes in the assessment of the pesticides toxicity." Phd thesis, Université d'Avignon, 2013. http://tel.archives-ouvertes.fr/tel-01002986.
Almasri, Hanine. "Toxicologie des mélanges de pesticides chez des abeilles exposées à un agent pathogène : action combinée de l'agent pathogène Nosema ceranae, de l'insecticide imidaclopride, du fongicide difénoconazole et de l'herbicide glyphosate Mixtures of an insecticide, a fungicide and a herbicide induce high toxicities and systemic physiological disturbances in winter Apis mellifera honey bees Toxicity of the pesticides imidacloprid, difenoconazole and glyphosate alone and in binary and ternary mixtures to winter honey bees: effects on survival and antioxidative defenses Toxicological status changes the susceptibility of the honey bee Apis mellifera to a single fungicidal spray application Physiological effects of the interaction between Nosema ceranae and sequential and overlapping exposure to glyphosate and difenoconazole in the honey bee Apis mellifera." Thesis, Avignon, 2020. http://www.theses.fr/2020AVIG0722.
Current scientific findings suggest a decline in the diversity and abundance of insects, including the honey bee Apis mellifera. The latter are facing high colony losses in several regions of the world such as Western Europe and the United States. Numerous studies suggest that the origin of bee colony decline is multi-causal and identify pesticides and pathogens as the main contributors to this decline. Co-exposure of honey bees to multiple pesticides and infection by multiple pathogens are common phenomena. However, research on the effects of pesticide mixtures has not been extensively developed. Thus, the thesis work has focused on determining the toxicity of pesticide mixtures, applied at environmental exposure levels, in the presence of pathogens. The choice was made to study the interactions between a neonicotinoid insecticide, imidacloprid, an azole fungicide, difenoconazole, and a herbicide, glyphosate, in the presence of the pathogen Nosema ceranae. The results of the different studies, carried out during this thesis, reveal the complexity of the studies on pesticide mixtures. The work allowed us to notice that the effects of a pesticide mixture can vary according to the concentrations of the pesticides constituting the mixture. The increase of the number of substances and the level of exposure does not necessarily induce an increase of the toxicity of the mixture. Furthermore, the effects of the mixture may vary depending on the sequence of exposure to the different pesticides and the health status of the honey bees. Pesticide mixtures affect the physiological state of individuals as a result of a systemic response related to disturbances of general mechanisms such as oxidative stress. However, these three pesticides, alone and in mixtures, have no effect on the installation of the intestinal microbiota at environmental exposure levels
Kairo, Guillaume. "Effets des stresseurs environnementaux sur la reproduction de l’abeille domestique (Apis mellifera L.) : action par une exposition des mâles." Thesis, Avignon, 2016. http://www.theses.fr/2016AVIG0678/document.
In a context of honey bee decline, an impoverishment of queen quality, resulting in abnormal brood production and early queen renewal, has been observed worldwide. Hence, the assumption was made that fertility impairment of drones exposed to environmental stressors could explain the queen failure observed in apiaries. In order to test this assumption, original approaches to rear drones were developed in laboratory and semi-field conditions. These approaches enabled to show that the systemic insecticide Fipronil, the pathogen microsporidia Nosema ceranae and their combination disrupt drone physiology in different ways, including an impairment of the semen quality. In addition, results have highlighted the high sensitivity of the reproductive function of drone to all of these stress factors. The instrumental insemination of young queens with semen of drones exposed to Fipronil has shown a decrease in the reproductive potential of queens that resulted from a lower number and viability of spermatozoa stored in their spermatheca. Consequently, considering that the spermathecal content determines the egg-laying ability and the lifespan of queens, the risk of queen failure and colony dysfunction is higher. Thus, reproductive disorders, linked to a fertility decline of drones continuously exposed to numerous environmental stressors, could explain, at least in part, the phenomenon of honey bee decline. Thereby, an assessment of the reproductive toxicity of pollutants, including pesticides, to which drones are potentially exposed, should be considered in a future regulatory framework. In this way, the innovative methods and approaches developed in the frame of this work could represent pertinent bases to elaborate new toxicological tests that could be used in the registration procedure of pesticides
Bordier, Célia. "Le stress chez l’abeille domestique (Apis mellifera) : analyse des modifications physiologiques et comportementales." Thesis, Avignon, 2017. http://www.theses.fr/2017AVIG0687/document.
Honeybees (Apis mellifera), which play an important role in natural and agronomic ecosystems, are exposed to a growing number of environmental pressures(new parasites, pesticides, climatechangeand poor nutrition). In this context, deciphering the mechanisms underlying stress responses and their costs becomes crucial to better understand theim pact of these pressures. Stress usually represents a challenge to the homeostasis of a norganism. In response, a cascade of physiological and behavioural adaptations enables the organism to cope with the stress. However, dueto their sociallife style, we could suggest that stress response in honeybees will occurin the interest of the colony and not only in the interest of the individual. To characterise the stress response and determine its specificity according to the stimulus (xenobiotic, immune, thermal, social), I developed a multidisciplinary approach to identify changes in i) task-related physiology, ii) energetic metabolism, and iii) behaviour. I demonstrated that, regardless of their social function (nurse, guard, forager), bees respond in the sameway to a given stress, if itis ecologically-relevant (heat and immune stress but not pesticides). Atendencytoward decreas ingenergetic resources was also observed following stress exposure, which suggests changes in behavioural performance.In order to test this hypothesis, I analysed changes in foraging activity in response to stress, as insect flight is one of the most costly physiological processes in the animal kingdom. I found that for aging performances were affected by animmune stress : bees changed their foraging preferences at the expense of pollen, probably to reduce the stress energetic cost, given that pollen is more costly to collect and provides alower energetic return than nectar. In contrast, in response to heat stress, an increase in colony for aging activity was observed, without an additional cost on resource collection. These results are discussed in the light of stress energetic cost and its potential consequences onhoneybee performances, which could disrupt the colony’s energetic homeostasis
Baldi, Isabelle. "Effets neurologiques centraux chroniques des expositions professionnelles aux pesticides." Bordeaux 2, 1998. http://www.theses.fr/1998BOR28621.
Carrié, Romain. "Hétérogénéité des paysages et des pratiques agricoles - Effets sur la diversité des abeilles sauvages et la pollinisation." Thesis, Toulouse, INPT, 2016. http://www.theses.fr/2016INPT0104/document.
The ecological and agricultural importance of wild bees in farmlands stresses the needs for management strategies for these insect pollinators. Wild bees use multiple habitats in agricultural landscapes, such as semi-natural habitats (woodlands, hedgerows, permanent grasslands) and crop fields. This study aims to characterize the community structure of wild bees and assess pollination delivery along gradients of landscape heterogeneity – based on the composition and configuration of semi-natural habitats – and landscape-wide intensity of farming practices. Using a trait-based approach, based on traits determining resource-use by wild bee species, we showed that i) the least mobile species, solitary bees and ground-nesting species were more abundant in crop fields surrounded by large amounts of little-fragmented permanent grasslands, ii) crop fields surrounded by high amount of woodland edges supported a greater abundance of little-mobile bee species, late-emerging bees, social bees and polylectic bees, iii) oligolectic bee species were filtered out in highly forested landscapes, because these species could thrive on resources provided by the crop mosaic. We also found that the positive effect of the proportion of semi-natural habitats on bee diversity was greater in landscapes with intensively managed crop mosaic. Moreover, we showed that the local intensity of farming practices had as much influence on bee diversity as the proportion of semi-natural habitats. Finally, we showed that, depending on situations, the abundance fluctuations of dominant bee species or the occurrence of an assemblage of uncommon bee species can explain variations in pollination success. In the cases where pollination success responded to the occurrence of uncommon species, the proportion of semi-natural habitats had a positive influence on pollination delivery provided by wild bees. This study shows the importance of some uncommon species, dependent on semi-natural habitats, for pollination delivery but also the positive relationship between the abundance of some species groups and the proportion of semi-natural habitats. This work therefore confirms the hypothesis that semi-natural habitats sustain the diversity of wild bee communities and pollination delivery. However, the positive effect of semi-natural habitats on bee diversity depends on farming practices at the local and landscape scale. Therefore, recommendations on the management of landscape heterogeneity and changes in farming practices cannot be given independently from each other
Kim, Tiam Sandra. "Effets de mélanges de pesticides sur les biofilms périphytiques d'eau douce." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-01017169.
Books on the topic "Abeilles – Effets des pesticides":
Lorraine, Maltby, ed. Aquatic macrophyte risk assessment for pesticides. Boca Raton, FL: CRC Press, 2010.
L, Robertson Jacqueline, and Robertson Jacqueline L, eds. Bioassays with arthropods. 2nd ed. Boca Raton: Taylor & Francis, 2007.
Nowell, Lisa H. Pesticides in stream sediment and aquatic biota: Distribution, trends, and governing factors. Boca Raton, Fla: Lewis Publishers, 1999.
J, Kendall Ronald, ed. Wildlife toxicology: Emerging contaminant and biodiversity issues. Boca Raton: CRC Press, 2010.
Atkins, Barry, and Jill Atkins. Business of Bees: An Integrated Approach to Bee Decline and Corporate Responsibility. Taylor & Francis Group, 2017.
Atkins, Barry, and Jill Atkins. Business of Bees: An Integrated Approach to Bee Decline and Corporate Responsibility. Taylor & Francis Group, 2016.
Atkins, Barry, and Jill Atkins. Business of Bees: An Integrated Approach to Bee Decline and Corporate Responsibility. Taylor & Francis Group, 2017.
Murty. Toxicity of Pesticides to Fish. Taylor & Francis Group, 2017.
Murty. Toxicity of Pesticides to Fish. Taylor & Francis Group, 2017.
Mesa, Albéric Muhindo. L’Exposition des agriculteurs aux effets des pesticides de Synthèse: Cas des agriculteurs des tomates. Éditions universitaires européennes, 2021.