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Articoli di riviste sul tema "Forager bees"

Autore: Grafiati

Pubblicato: 7 giugno 2025

Ultima modifica: 2 agosto 2025

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1

Moreira, Iloran do Rosário Corrêa, Isabella Cristina de Castro Lippi, Yan Souza Lima, et al. "Pesticides modulate the expression of genes in the antioxidant system of Africanized Apis mellifera bees in the forager phase." OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA 23, no. 5 (2025): e9949. https://doi.org/10.55905/oelv23n5-089.

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Forager bees forage long distances in search of food resources, which leaves them susceptible to oxidative stress, with an accumulation of reactive oxygen species (ROS) that affect their longevity and cognitive capacity, an effect aggravated by pesticides exposure. The aim of this study is to evaluate the toxicity of different classes of pesticides: herbicide (glyphosate), insecticide (fipronil and imidacloprid) and fungicide (pyraclostrobin) on the gene expression profile of the antioxidant system of bees in the forager phase, using transcriptome analysis. For this purpose, bees over 21 days

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2

Riddell Pearce, Fiona C., Margaret J. Couvillon, and Francis L. W. Ratnieks. "Hive Relocation Does Not Adversely Affect Honey Bee (Hymenoptera: Apidae) Foraging." Psyche: A Journal of Entomology 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/693856.

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Honey bees,Apis mellifera, face major challenges including diseases and reduced food availability due to agricultural intensification. Additionally, migratory beekeeping may subject colonies to a moving stress, both during the move itself and after the move, from the bees having to forage in a novel environment where they have no knowledge of flower locations. This study investigated the latter. We moved three colonies housed in observation hives onto the campus from a site 26 km away and compared their foraging performance to three similarly sized colonies at the same location that had not be

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3

Sushil, Kumar. "Effect of Biopesticide Neem oil on Amino Acid contents of Foragers honeybee Apis mellifera L." International Journal of Research and Analytical Reviews 6, no. 1 (2019): 924–28. https://doi.org/10.5281/zenodo.15380690.

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ABSTRACTThe effect sublethal concentrations (¼ and ½ of LC50 at 96 hrs.) of biopesticide neem oil – 25 EC was studied on the forager bees (25 days old worker bees) of Italian honeybee Apis mellifera L. The results indicated that there were no significant alteration in total amino acid contents in forager bees at either sublethal concentration level-1(¼ of LC50 at 96 hrs) or concentration-2 (½ of LC50 at 96 hrs.) of neem oil treated bees over control bees. Although field experiments are inevitable for further confirmations of lethality of neem oil on honeybees.

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4

Sagona, Simona, Francesca Coppola, Antonio Nanetti, et al. "Effects of Two Commercial Protein Diets on the Health of Two Imago Ages of Apis mellifera L. Reared in Laboratory." Animals 12, no. 8 (2022): 968. http://dx.doi.org/10.3390/ani12080968.

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Protein-supplemented artificial diets are widely used by beekeepers during winter and whenever food availability is low, yet no data are available concerning their effects on bees’ health. In this work, the effects of two commercial diets enriched with 1.7% and 7.7% protein concentration on feed intake, survival rate, glucose oxidase, phenoloxidase and glutathione S-transferase in newly emerged and forager bees were tested. Administration of a 7.7% protein-enriched diet significantly reduced the lifespan of both newly emerged and forager bees, while only in foragers a significantly higher feed

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5

Sokół, Rajmund, and Maria Michalczyk. "Detection of Nosema spp. in worker bees, pollen and bee bread during the honey flow season." Acta Veterinaria Brno 85, no. 3 (2016): 261–66. http://dx.doi.org/10.2754/avb201685030261.

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Nosema apis and Nosema ceranae are responsible for nosemosis in the honey bee (Apis mellifera). The aim of the study was to identify Nosema spp. during the honey flow season in bee colonies, for co-infection or no infection with Nosema apis/Nosema ceranae. Hive bees, forager bees, pollen grains brought by them, and bee bread were analysed. In the infected group, 12 of 30 samples of hive bees were infected with Nosema ceranae, 7 were co-infected, 3 were infected with Nosema apis. In samples of forager bees, 21 of 30 were co-infected, 8 were infected with Nosema ceranae. The analysis of pollen d

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6

JONGJITVIMOL, TOUCHKANIN, and WANDEE WATTANACHAIYINGCHAROEN. "Pollen Food Sources of the Stingless Bees Trigona apicalis Smith, 1857, Trigona collina Smith, 1857 and Trigona fimbriata Smith, 1857 (Apidae, Meliponinae) in Thailand." Tropical Natural History 6, no. 2 (2006): 75–82. https://doi.org/10.58837/tnh.6.2.102926.

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The pollen collected by three species of Trigona; T. apicalis Smith 1857, T. collina Smith, 1857 and T. fimbriata Smith, 1857 were studied at the Phitsanulok Wildlife Conservation Development and Extension Station in Thailand, from January to December 2004. Pollen loads were sampled from bee baskets of forager bees returning to their colonies. We created a pollen key for the variety of local plant species. Pollen samples were prepared for analysis by acetolysis. Having developed the key, we determined the origin of pollen loads carried by returning foragers. In total, 2,160 pollen loads from b

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7

Rinkevich, Frank D., Joseph W. Margotta, Jean M. Pittman, James A. Ottea, and Kristen B. Healy. "Pteridine levels and head weights are correlated with age and colony task in the honey bee,Apis mellifera." PeerJ 4 (June 30, 2016): e2155. http://dx.doi.org/10.7717/peerj.2155.

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Background.The age of an insect strongly influences many aspects of behavior and reproduction. The interaction of age and behavior is epitomized in the temporal polyethism of honey bees in which young adult bees perform nurse and maintenance duties within the colony, while older bees forage for nectar and pollen. Task transition is dynamic and driven by colony needs. However, an abundance of precocious foragers or overage nurses may have detrimental effects on the colony. Additionally, honey bee age affects insecticide sensitivity. Therefore, determining the age of a set of individual honey be

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8

Suluova, Hamid Furkan, and Duc Truong Pham. "A New Single-Parameter Bees Algorithm." Biomimetics 9, no. 10 (2024): 634. http://dx.doi.org/10.3390/biomimetics9100634.

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Based on bee foraging behaviour, the Bees Algorithm (BA) is an optimisation metaheuristic algorithm which has found many applications in both the continuous and combinatorial domains. The original version of the Bees Algorithm has six user-selected parameters: the number of scout bees, the number of high-performing bees, the number of top-performing or “elite” bees, the number of forager bees following the elite bees, the number of forager bees recruited by the other high-performing bees, and the neighbourhood size. These parameters must be chosen with due care, as their values can impact the

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9

Rodney, Sara, and Vincent J. Kramer. "Probabilistic assessment of nectar requirements for nectar-foraging honey bees." Apidologie 51, no. 2 (2019): 180–200. http://dx.doi.org/10.1007/s13592-019-00693-w.

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AbstractRecent concerns regarding potential effects of pesticides on pollinators have prompted regulatory agencies to estimate dietary ingestion rates for honey bees (Apis mellifera). The task is difficult because of the complex caste and food storage systems in honey bee colonies. Considerable data on the nutrition and energetics of honey bees have recently been collated. These data were used to parameterize a probabilistic model estimating nectar requirements of nectar foragers. Median estimates were more than 6× lower than the recommended median value from the North American government agen

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10

Beer, Katharina, and Guy Bloch. "Circadian plasticity in honey bees." Biochemist 42, no. 2 (2020): 22–26. http://dx.doi.org/10.1042/bio04202002.

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Circadian rhythms of about a day are ubiquitous in animals and considered functionally significant. Honey bees show remarkable circadian plasticity that is related to the complex social organization of their societies. Forager bees show robust circadian rhythms that support time-compensated sun-compass navigation, dance communication and timing visits to flowers. Nest-dwelling nurse bees care for the young brood around the clock. Here, we review our current understanding of the molecular and neuroanatomical mechanisms underlying this remarkable natural plasticity in circadian rhythms.

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11

Richards, M. H., and C. Course. "Ergonomic skew and reproductive queuing based on social and seasonal variation in foraging activity of eastern carpenter bees (Xylocopa virginica)." Canadian Journal of Zoology 93, no. 8 (2015): 615–25. http://dx.doi.org/10.1139/cjz-2014-0330.

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Reproductive division of labour in social carpenter bees differs from that in classically eusocial insects because reproductive output and ergonomic inputs are positively correlated—dominant females monopolize both foraging and reproduction. We quantified ergonomic skew in the facultatively social bee Xylocopa virginica (L., 1771) (eastern carpenter bee) based on detailed observations of foraging activity by individually marked females in 2009. Unusually for a univoltine bee, this species exhibits a spring foraging phase during which females feed pollen to other adults, probably as part of beh

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12

Moore, Darrell, and Patrick Doherty. "Acquisition of a time-memory in forager honey bees." Journal of Comparative Physiology A 195, no. 8 (2009): 741–51. http://dx.doi.org/10.1007/s00359-009-0450-7.

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13

Buchori, Damayanti, Akhmad Rizali, Windra Priawandiputra, Dewi Sartiami, and Midzon Johannis. "Population Growth and Insecticide Residues of Honey Bees in Tropical Agricultural Landscapes." Diversity 12, no. 1 (2019): 1. http://dx.doi.org/10.3390/d12010001.

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Global decline of pollinators, especially bees, has been documented in many countries. Several causes such as land-use change and agricultural intensification are reported to be the main drivers of the decline. The objective of this study was to investigate the effect of land use on honey bee and stingless bee populations. Research was conducted in Bogor and Malang to compare between two different geographical areas. Managed bees such as honey bees (Apis cerana and A. mellifera) and stingless bees (Tetragonula laeviceps) were investigated to examine the effect of agricultural intensification.

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14

Akülkü, İrem, Saleh Ghanem, Elif Filiztekin, Guntima Suwannapong, and Christopher Mayack. "Age-Dependent Honey Bee Appetite Regulation Is Mediated by Trehalose and Octopamine Baseline Levels." Insects 12, no. 10 (2021): 863. http://dx.doi.org/10.3390/insects12100863.

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There are multiple feedback mechanisms involved in appetite regulation, which is an integral part of maintaining energetic homeostasis. Older forager honey bees, in comparison to newly emerged bees and nurse bees, are known to have highly fluctuating hemolymph trehalose levels, higher appetite changes due to starvation, and higher octopamine levels in the brain. What remains unknown is if the hemolymph trehalose and octopamine levels interact with one another and how this varies as the bee ages. We manipulated trehalose and octopamine levels across age using physiological injections and found

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15

G, Eswarappa, Gagan B, Anitha S, Somashekar R K, and Jagadish K S. "Influence of Weather Parameters on Pollen and Nectar Foraging Activity of Apis and Non-Apis Species of Honey Bees in Wild and Cultivated Varieties of Jamun (Syzygium cumuni L. Skeels)." Journal of Advances in Biology & Biotechnology 28, no. 2 (2025): 395–410. https://doi.org/10.9734/jabb/2025/v28i22000.

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The study on influence of weather parameters on pollen and nectar foraging activity of Apis and non-Apis species of honey bees in wild and cultivated varieties of jamun revealed that two peaks in nectar forager activity of A. dorsata, A. florea and A. cerana was recorded, the first peak during 0800-1200hr and second peak during 1400-1800hr, whereas in the case of T. iridipennis, one peak during 0800-0900hr was observed. Only one peak in the pollen forager of A. dorsata, A. florea and A. cerana was recorded during 0900-1200/1300hr, where as in case of T. iridipennis, two peaks were observed, th

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16

Heard, M. S., C. Carvell, N. L. Carreck, P. Rothery, J. L. Osborne, and A. F. G. Bourke. "Landscape context not patch size determines bumble-bee density on flower mixtures sown for agri-environment schemes." Biology Letters 3, no. 6 (2007): 638–41. http://dx.doi.org/10.1098/rsbl.2007.0425.

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Bumble-bee declines across Europe have been linked to loss of habitat and forage availability due to agricultural intensification. These declines may have severe ecological and commercial consequences since bumble-bees pollinate a range of wildflowers and crops. In England, attempts are being made to reintroduce forage resources through agri-environment schemes, yet there are few data on how the area of forage, or the landscape context in which it is provided, affects their success. We investigated the effects of sown forage patches on bumble-bees across sites varying in landscape characterist

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17

Espadas-Pinacho, Karen, Julieta Grajales-Conesa, Julio C. Rojas, and Leopoldo Cruz-López. "Melipona beecheii (Hymenoptera, Apidae) foragers deposit a chemical mark on food to attract conspecifics." Journal of Hymenoptera Research 96 (April 19, 2023): 155–66. https://doi.org/10.3897/jhr.96.98127.

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Stingless bees have a sophisticated system of chemical communication that helps conspecifics find food sources. In this study, we investigated whether Melipona beecheii foragers deposit a chemical mark on food to recruit conspecifics. Our results showed that foragers preferred to visit the feeders visited previously by conspecifics over clean feeders. We also found that foragers preferred visiting feeders baited with labial gland extracts over those baited with mandibular extracts or hexane. Labial gland extracts elicited higher forager antennal responses compared with those evoked by the mand

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18

Pinheiro, Izabella M. C., João Henrique S. Luz, Luis Flávio N. Souza, et al. "Effects of Lippia sidoides Cham. (Verbenaceae) essential oils on the honey bees, Apis mellifera (Apidae: Hymenoptera), foraging." Revista de Ciencias Agrícolas 36, E (2019): 31–41. http://dx.doi.org/10.22267/rcia.1936e.104.

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The use of plant essential oils has been adopted as less hazardous to the environment and human health than synthetic insecticides used for the control of insects that transmit diseases. Despite of exerting insecticidal activities against several insect disease vectors, the potential impacts on non-target organisms exerted by essential oils extracted from Lippia sidoides (Cham.) have not received adequate attention. Here, we evaluated the susceptibility and potential changes in consumption rates of honey bees, Apis mellifera (L.), when exposed to essential oils extracted from L. sidoides. Was

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19

Naeger, N. L., B. N. Van Nest, J. N. Johnson, et al. "Neurogenomic signatures of spatiotemporal memories in time-trained forager honey bees." Journal of Experimental Biology 214, no. 6 (2011): 979–87. http://dx.doi.org/10.1242/jeb.053421.

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20

Muijres, Florian T., Coby van Dooremalen, Martin Lankheet, Heleen Lugt, Lana J. de Vries, and Frank Van Langevelde. "Varroa destructor infestation impairs the improvement of landing performance in foraging honeybees." Royal Society Open Science 7, no. 9 (2020): 201222. http://dx.doi.org/10.1098/rsos.201222.

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The parasitic mite Varroa destructor is an important contributor to the high losses of western honeybees. Forager bees from Varroa -infested colonies show reduced homing and flight capacity; it is not known whether flight manoeuvrability and related learning capability are also affected. Here, we test how honeybees from Varroa -infested and control colonies fly in an environment that is unfamiliar at the beginning of each experimental day. Using stereoscopic high-speed videography, we analysed 555 landing manoeuvres recorded during 12 days of approximately 5 h in length. From this, we quantifi

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21

Perry, Clint J., Eirik Søvik, Mary R. Myerscough, and Andrew B. Barron. "Rapid behavioral maturation accelerates failure of stressed honey bee colonies." Proceedings of the National Academy of Sciences 112, no. 11 (2015): 3427–32. http://dx.doi.org/10.1073/pnas.1422089112.

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Many complex factors have been linked to the recent marked increase in honey bee colony failure, including pests and pathogens, agrochemicals, and nutritional stressors. It remains unclear, however, why colonies frequently react to stressors by losing almost their entire adult bee population in a short time, resulting in a colony population collapse. Here we examine the social dynamics underlying such dramatic colony failure. Bees respond to many stressors by foraging earlier in life. We manipulated the demography of experimental colonies to induce precocious foraging in bees and used radio ta

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22

Dorigo, Adna, Annelise Rosa-Fontana, Isabella Camargo, Roberta Nocelli, and Osmar Malaspina. "Biological Data of Stingless Bees with Potential Application in Pesticide Risk Assessments." Sociobiology 65, no. 4 (2018): 777. http://dx.doi.org/10.13102/sociobiology.v65i4.2878.

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Due to the current practice of intensive pesticide use in Brazil on crops with flowers that are attractive to bees, biological information about Brazilian native bees is required in order for public authorities that are responsible for environmental safety to use them for calculations of risk assessments. Thus, the present study aimed to obtain biological data on stingless bees: Melipona scutellaris, Scaptotrigiona postica and Tetragonisca angustula. The food consumed by larvae and by adults and the mass of forager workers were obtained. The results provide essential inputs for the risk assess

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23

Liu, Hao, Zi-Long Wang, Lin-Bin Zhou, and Zhijiang Zeng. "Quantitative analysis of the genes affecting development of the hypopharyngeal gland in honey bees (Apis mellifera L.)." Sociobiology 62, no. 3 (2015): 412. http://dx.doi.org/10.13102/sociobiology.v62i3.760.

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Royal jelly has many important biological functions, however the molecular mechanism of royal jelly secretion in hypopharyngeal gland (HG) is still not well understood. In our previously study, six genes (SV2C, eIF-4E, PDK1, IMP, cell growth-regulating nucleolar protein and TGF-βR1) have been shown to might be associated with royal jelly secretion. In this study, the relative expression levels of these genes were examined in the hypopharyngeal gland of workers at different developmental stages (nurse, forager and reversed nurse stages). The results indicated that the relative expression levels

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24

Cameron, Sydney A., Sarah A. Corbet, and James B. Whitfield. "Bumble bees (Hymenoptera: Apidae: Bombus terrestris) collecting honeydew from the giant willow aphid (Hemiptera: Aphididae)." Journal of Hymenoptera Research 68 (February 25, 2019): 75–83. http://dx.doi.org/10.3897/jhr.68.30495.

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Only rarely have bumble bees (Bombus) been observed collecting honeydew from aphids (Aphididae) feeding on phloem sap. This behavior may be rare because the percentage of sugar in honeydew egested from aphids is generally well below the sugar concentration in floral nectars preferred by bumble bees. Nonetheless, in August 2018, near St. Buryan, Penzance, Cornwall, UK (56.0602N; -5.6034W) we observed large numbers of wild Bombusterrestris (Linnaeus) collecting honeydew from a colony of the giant willow aphid Tuberolachnussalignus Gmelin feeding on the stems of the willow Salixalba. Unlike aphid

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25

Li, Zhiguo, Meng Li, Jingnan Huang, et al. "Effects of Sublethal Concentrations of Chlorpyrifos on Olfactory Learning and Memory Performances in Two Bee Species, Apis mellifera and Apis cerana." Sociobiology 64, no. 2 (2017): 174. http://dx.doi.org/10.13102/sociobiology.v64i2.1385.

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Chlorpyrifos is a widely used organophosphorus insecticide. The acute oral 24 h median lethal dose (LD50) value of chlorpyrifos in Apis mellifera and in Apis cerana was estimated to assess differential acute chlorpyrifos toxicity in the two bee species. The LD50 values of chlorpyrifos in A. mellifera and in A. cerana are 103.4 ng/bee and 81.8 ng/bee, respectively, which suggests A. cerana bees are slightly more sensitive than A. mellifera bees to the toxicity of chlorpyrifos. Doses half the acute LD50 of chlorpyrifos were selected to study behavioral changes in the two bee species using probos

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26

Espadas-Pinacho, Karen, Julieta Grajales-Conesa, Julio C. Rojas, and Leopoldo Cruz-López. "Melipona beecheii (Hymenoptera, Apidae) foragers deposit a chemical mark on food to attract conspecifics." Journal of Hymenoptera Research 96 (April 19, 2023): 155–66. http://dx.doi.org/10.3897/jhr.96.98127.

Testo completo

Abstract (sommario):

Stingless bees have a sophisticated system of chemical communication that helps conspecifics find food sources. In this study, we investigated whether Melipona beecheii foragers deposit a chemical mark on food to recruit conspecifics. Our results showed that foragers preferred to visit the feeders visited previously by conspecifics over clean feeders. We also found that foragers preferred visiting feeders baited with labial gland extracts over those baited with mandibular extracts or hexane. Labial gland extracts elicited higher forager antennal responses compared with those evoked by the mand

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27

Koleva, Miglena N., and Lubin G. Vulkov. "Reconstruction coefficient analysis of honeybee collapse due to pesticide contamination." Journal of Physics: Conference Series 2675, no. 1 (2023): 012024. http://dx.doi.org/10.1088/1742-6596/2675/1/012024.

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Abstract In this paper we consider the inverse problems of identifying space-dependent coefficients of the mortality rate of the bees and the rate of contamination of the forager bees by pesticides. The model is described by a weakly coupled system of two reaction-diffusion equations for the spatial distribution of uncontaminated and contaminated foraging bees. Final time t = T observations of the density of uncontaminant and contaminant forager bees are used. We propose two approaches for studying the problems. The first one uses the overspecified information to transform the problems into no

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Li, Yi-Hsuan, Yu-Hsin Chen, Fang-Min Chang, Ming-Cheng Wu, and Yu-Shin Nai. "Monitoring the Season–Prevalence Relationship of Vairimorpha ceranae in Honey Bees (Apis mellifera) over One Year and the Primary Assessment of Probiotic Treatment in Taichung, Taiwan." Insects 15, no. 3 (2024): 204. http://dx.doi.org/10.3390/insects15030204.

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Microsporidiosis, which is caused by the pathogen Vairimorpha ceranae, is a prevalent disease in the honey bee (Apis mellifera) and might lead to significant adult honey bee mortality. In this study, we conducted an annual survey of the mature spore load of V. ceranae in the guts of nurse bees and forager bees in the apiary of National Chung Hsing University (NCHU) in Taiwan. The results indicated that, on average, honey bees hosted approximately 2.13 × 106 mature spore counts (MSCs)/bee in their guts throughout the entire year. The highest number of MSCs was 6.28 × 106 MSCs/bee, which occurre

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Schilcher, Felix, Lioba Hilsmann, Lisa Rauscher, et al. "In Vitro Rearing Changes Social Task Performance and Physiology in Honeybees." Insects 13, no. 1 (2021): 4. http://dx.doi.org/10.3390/insects13010004.

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In vitro rearing of honeybee larvae is an established method that enables exact control and monitoring of developmental factors and allows controlled application of pesticides or pathogens. However, only a few studies have investigated how the rearing method itself affects the behavior of the resulting adult honeybees. We raised honeybees in vitro according to a standardized protocol: marking the emerging honeybees individually and inserting them into established colonies. Subsequently, we investigated the behavioral performance of nurse bees and foragers and quantified the physiological facto

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30

Cameron, Sydney A., Sarah A. Corbet, and James B. Whitfield. "Bumble bees (Hymenoptera: Apidae: Bombus terrestris) collecting honeydew from the giant willow aphid (Hemiptera: Aphididae)." Journal of Hymenoptera Research 68 (February 25, 2019): 75–83. https://doi.org/10.3897/jhr.68.30495.

Testo completo

Abstract (sommario):

Only rarely have bumble bees (Bombus) been observed collecting honeydew from aphids (Aphididae) feeding on phloem sap. This behavior may be rare because the percentage of sugar in honeydew egested from aphids is generally well below the sugar concentration in floral nectars preferred by bumble bees. Nonetheless, in August 2018, near St. Buryan, Penzance, Cornwall, UK (56.0602N; -5.6034W) we observed large numbers of wild Bombus terrestris (Linnaeus) collecting honeydew from a colony of the giant willow aphid Tuberolachnus salignus Gmelin feeding on the stems of the willow Salix alba. Unlike ap

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31

Farina, W. M., and A. J. Wainselboim. "Changes in the thoracic temperature of honeybees while receiving nectar from foragers collecting at different reward rates." Journal of Experimental Biology 204, no. 9 (2001): 1653–58. http://dx.doi.org/10.1242/jeb.204.9.1653.

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Mouth-to-mouth food exchange in eusocial insects (trophallaxis) contributes to the organization of complex social activities. In the case of honeybees, foragers returning from a nectar source transfer the food collected to receiver colony-mates through oral contact. Previous studies have shown that the speed of nectar transfer within each contact (unloading rate) increases when foragers return from feeding sites with higher profitability, i.e. with more concentrated sugar solutions or higher solution flow rates. However, there is no evidence that the nectar unloading rate is actually evaluated

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Guimarães Silva, Albeane, Gracy Chrisley Alencar Carvalho, Ana Catarina De Miranda, Felipe Andrés León Contrera, and Márcia Maria Corrêa Rêgo. "Temporal Memory in Foraging of the Stingless Bee Melipona subnitida (Hymenoptera: Apidae: Meliponini)." Sociobiology 68, no. 2 (2021): 5863. http://dx.doi.org/10.13102/sociobiology.v68i2.5863.

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Bees feed on nectar and pollen, however these resources are often available to floral visitors during restricted temporal windows. The presence of temporal memory is an advantage, as foragers can save energy by scheduling their flight activity to coincide with peaks of nectar secretion in the flowers or at times of higher sugar concentration in the nectar. Thus, the objectives of this study were (i) to investigate whether Melipona subnitida has temporal memory, and evaluate whether it becomes more accurate over the days, and (ii) to determine whether the behavior of anticipating the offered re

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33

Okada, Ryuichi, Hidetoshi Ikeno, Hitoshi Aonuma, Midori Sakura, and Etsuro Ito. "Honey Bee Waggle Dance as a Model of Swarm Intelligence." Journal of Robotics and Mechatronics 35, no. 4 (2023): 901–10. http://dx.doi.org/10.20965/jrm.2023.p0901.

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Abstract (sommario):

Honey bees are social insects that form colonies (hives), which often consist of more than 10,000 individuals. In a colony, bees allocate jobs (division of labor) and work cooperatively and intelligently to maintain the colony’s activity, such as nursing broods, cleaning, and guarding against enemies. Among worker bees, only forager bees collect food, and success in finding food directly influences colony survival. For more efficient foraging, honey bees share location information pertaining to profitable food sources through specific behavior called “waggle dances.” During such dances, the di

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34

Kato, Aline Y., Tainá A. L. Freitas, Cássia R. A. Gomes, et al. "Bixafen, Prothioconazole, and Trifloxystrobin Alone or in Combination Have a Greater Effect on Health Related Gene Expression in Honey Bees from Nutritionally Deprived than from Protein Supplemented Colonies." Insects 15, no. 7 (2024): 523. http://dx.doi.org/10.3390/insects15070523.

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Abstract (sommario):

The aim of this study was to evaluate whether alterations in food availability compromise the metabolic homeostasis of honey bees exposed to three fungicides alone or together. Ten honey bee colonies were used, with half receiving carbohydrate-protein supplementation for 15 weeks while another five colonies had their protein supply reduced with pollen traps. Subsequently, forager bees were collected and exposed by contact to 1 or 7 µg of bixafen, prothioconazole, or trifloxystrobin, either individually or in combination. After 48 h, bee abdomens without the intestine were used for the analysis

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35

Wagner, A. E., B. N. Van Nest, C. N. Hobbs, and D. Moore. "Persistence, reticence and the management of multiple time memories by forager honey bees." Journal of Experimental Biology 216, no. 7 (2012): 1131–41. http://dx.doi.org/10.1242/jeb.064881.

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36

Medrzycki, Piotr. "Funnel trap—a tool for selective collection of exiting forager bees for tests." Journal of Apicultural Research 52, no. 3 (2013): 122–23. http://dx.doi.org/10.3896/ibra.1.52.3.02.

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37

Gilley, David C. "Hydrocarbons Emitted by Waggle-Dancing Honey Bees Increase Forager Recruitment by Stimulating Dancing." PLoS ONE 9, no. 8 (2014): e105671. http://dx.doi.org/10.1371/journal.pone.0105671.

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38

Crailsheim, K., N. Hrassnigg, and A. Stabentheiner. "Diurnal behavioural differences in forager and nurse honey bees (Apis mellifera carnica Pollm)." Apidologie 27, no. 4 (1996): 235–44. http://dx.doi.org/10.1051/apido:19960406.

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39

Bronstein, Judith L., Goggy Davidowitz, Elinor M. Lichtenberg, and Rebecca E. Irwin. "The Hole Truth: Why Do Bumble Bees Rob Flowers More Than Once?" Plants 13, no. 17 (2024): 2507. http://dx.doi.org/10.3390/plants13172507.

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Abstract (sommario):

Primary nectar-robbers feed through holes they make in flowers, often bypassing the plant’s reproductive organs in the process. In many robbed plants, multiple holes are made in a single flower. Why a flower should be robbed repeatedly is difficult to understand: a hole signals that a nectar forager has already fed, which would seem likely to predict low rewards. We tested three explanations for this pattern in Corydalis caseana (Fumariaceae), a bumble bee pollinated and robbed plant: (1) multiple holes appear only after all flowers have been robbed once; (2) individual foragers make multiple

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40

Sarioğlu-Bozkurt, Aybike, Erkan Topal, Nazmiye Güneş, et al. "Changes in Vitellogenin (Vg) and Stress Protein (HSP 70) in Honey Bee (Apis mellifera anatoliaca) Groups under Different Diets Linked with Physico-Chemical, Antioxidant and Fatty and Amino Acid Profiles." Insects 13, no. 11 (2022): 985. http://dx.doi.org/10.3390/insects13110985.

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Abstract (sommario):

Honey bee colonies are often subjected to diseases, nutrition quality, temperature and other stresses depending on environmental and climatic conditions. As a result of malnutrition, the level of Vg protein decreases, leading to overwintering losses. The Vg values must be high for a successful wintering, especially before wintering. If good nutrition is not reached, the long winter period may cause an increase in colony losses. Supplementary feeding is essential for colony sustainability when floral resources are insufficient, as in recent years with the emerging climate changes. Furthermore,

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41

Khan, Momin Aziz, Naiha Ijaz Sulehri, Muhammad Talha, Aqsa Nazar, and Hafiz Ghulam Muhu-Din Ahmed. "Honey bees show dance pattern to communicate – A review." World Journal of Biology and Biotechnology 6, no. 2 (2021): 15. http://dx.doi.org/10.33865/wjb.006.02.414.

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Abstract (sommario):

The honey bee language is considered by many to be one of the most interesting systems for animal communications, used for recruitment to food sources. Honeybee's forager dancers communicate food and other resources to the household by quantity, consistency, direction, and spatial location. The waggle dance was interesting and complex, which bees used for spatial information on desired resources. All honeybee species use the waggle dance to convey their position and distance from food sources and possible new nest sites. The research was carried out on dance communication, earlier ideas, contr

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42

Rahman, Seydur, Ibamelaker Thangkhiew, and Sudhanya R. Hajong. "Hypopharyngeal Gland Activity in Task-Specific Workers Under Brood and Broodless Conditions in Apis Cerana Indica (Fab.)." Journal of Apicultural Science 58, no. 2 (2014): 59–70. http://dx.doi.org/10.2478/jas-2014-0022.

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Abstract (sommario):

Abstract The hypopharyngeal gland (HPG) is the principal organ of protein synthesis in honey bees. It is involved in larval rearing. We examined the fresh head weight, HPG acini diameter, and HPG protein content in worker bees engaged in different tasks and under brood and broodless conditions. Scanning electron microscopy revealed that the HPG acini diameter of worker bees was related to their task. The highest HPG volume was found in nurse bees, and the volume regressed when the task changed from guarding to foraging. The fresh head weight was positively correlated with HPG acini diameter. A

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43

Domingues, Caio E. C., Lais V. B. Inoue, Aleš Gregorc, Leticia S. Ansaloni, Osmar Malaspina, and Elaine C. Mathias da Silva. "Ultrastructural Changes in the Midgut of Brazilian Native Stingless Bee Melipona scutellaris Exposed to Fungicide Pyraclostrobin." Toxics 11, no. 12 (2023): 1028. http://dx.doi.org/10.3390/toxics11121028.

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Abstract (sommario):

Melipona scutellaris is a Brazilian stingless bee that is important for pollinating wild flora and agriculture crops. Fungicides have been widely used in agriculture, and floral residues can affect forager bees. The goal of our study was to evaluate the effects of sublethal concentrations of pyraclostrobin on the midgut ultrastructure of M. scutellaris forager workers. The bees were collected from three non-parental colonies and kept under laboratory conditions. The bees were orally exposed continuously for five days to pyraclostrobin in syrup at concentrations of 0.125 ng a.i./µL (FG1) and 0.

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44

Sagona, Simona, Francesca Coppola, Elena Tafi, et al. "Effects of Virgin Coconut Oil-Enriched Diet on Immune and Antioxidant Enzymatic Activity, Fat and Vitellogenin Contents in Newly Emerged and Forager Bees (Apis mellifera L.) Reared in Cages." Insects 14, no. 11 (2023): 856. http://dx.doi.org/10.3390/insects14110856.

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Abstract (sommario):

Searching for artificial diets positively affecting the survival, immune and antioxidant systems of honey bees is one of main challenges occurring in beekeeping. Among nutrients, lipids play a significant role in insect nutrition as structural components in cell membranes, energy sources and reserves, and are involved in many physiological processes. In this context, the aim of this work was to investigate the effect of 0.5% and 1% coconut oil-enriched diet administration on newly emerged and forager bees survival rate, feed intake, immune system, antioxidant system and both fat and vitellogen

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45

Rami Reddy, P. V. "Mexican creeper, Antigonon leptopus Hook. and Arn : An effective bee forage plant to conserve honey bee." Journal of Horticultural Sciences 15, no. 2 (2020): 225–28. http://dx.doi.org/10.24154/jhs.2020.v15i02.015.

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Abstract (sommario):

   Decline in honey bee populations has become a matter of concern and their conservation is very essential to sustain essential ecosystem services. They provide making available continuous supply of floral resources is of immense value in conserving honey bees. The effectiveness of an ornamental creeper, Antigonon leptopus Hook. & Arn as a sustainable bee forage plant was evaluated. It attracts four major native species of honey bees viz., Apis cerana, A. florea, A. dorsata and Tetragonula iridipennis. The wild little bee, A. florea was the most dominant forager followed

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46

Rami Reddy, P. V. "Mexican creeper, Antigonon leptopus Hook. and Arn : An effective bee forage plant to conserve honey bee." Journal of Horticultural Sciences 15, no. 2 (2020): 225–28. http://dx.doi.org/10.24154/jhs.v15i2.953.

Testo completo

Abstract (sommario):

   Decline in honey bee populations has become a matter of concern and their conservation is very essential to sustain essential ecosystem services. They provide making available continuous supply of floral resources is of immense value in conserving honey bees. The effectiveness of an ornamental creeper, Antigonon leptopus Hook. & Arn as a sustainable bee forage plant was evaluated. It attracts four major native species of honey bees viz., Apis cerana, A. florea, A. dorsata and Tetragonula iridipennis. The wild little bee, A. florea was the most dominant forager followed

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47

Abou-shaara, Hossam. "STRATEGIES TO TEMPORARILY REPEL HONEY BEES FROM PESTICIDE-TREATED AREAS." Uludağ Arıcılık Dergisi 25, no. 1 (2025): 158–70. https://doi.org/10.31467/uluaricilik.1609659.

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Abstract (sommario):

The exposure of forager honey bees, Apis mellifera, to pesticides during the treatment period or shortly after can result in instant death or direct impairment of their behaviors. Beekeepers are often faced with limited choices when pesticides are applied near their colonies. One proposed method is the use of repellent materials shortly before pesticide spraying or synchronizing the application time. This article aims to highlight key trends that can be employed to temporarily repel honey bees and emphasizes areas where further studies are needed. The significance of this article lies in the d

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48

Kedswin, K. S., M. R. Srinivasan, Sake Manideep, and Talapala Sai Kumar. "Pollination potential of stingless bee Tetragonula iridipennis Smith. (Hymenoptera, Apidae) in Pumpkin (Cucurbita moschata Duchex Poir)." ENTOMON 50, no. 1 (2025): 61–66. https://doi.org/10.33307/entomon.v50i1.1414.

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Abstract (sommario):

An experiment was conducted to investigate the pollination potential and effectiveness of the stingless bee (Tetragonula iridipennis Smith.) on pumpkin. The abundance and diversity of foragers in male and female pumpkin flowers were assessed by measuring the number of foragers per flower per minute. The pumpkin fruit set and yield were evaluated under three different conditions: open pollination, bee pollination, and pollination exclusion. The foraging rate of bees was higher in male pumpkin flowers (0.22 bees/flower/min) than in female flowers (0.14 bees/flower/min) on the 45th day of floweri

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49

Evans, L. J., L. Jesson, S. F. J. Read, et al. "Key factors influencing forager distribution across macadamia orchards differ among species of managed bees." Basic and Applied Ecology 53 (June 2021): 74–85. http://dx.doi.org/10.1016/j.baae.2021.03.001.

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50

Incorvaia, Darren C., Trevor Dalrymple, Zachary Y. Huang, and Fred C. Dyer. "Short- and long-term modulation of forager motivation by colony state in bumble bees." Animal Behaviour 190 (August 2022): 61–70. http://dx.doi.org/10.1016/j.anbehav.2022.05.007.

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