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Dissertations / Theses on the topic 'Effect of honeybees on'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Wood, Thomas James. "The effect of agri-environment schemes on farmland bee populations." Thesis, University of Sussex, 2017. http://sro.sussex.ac.uk/id/eprint/66427/.

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Over the past century there have been substantial declines in farmland biodiversity as a result of the intensification of agricultural practice. Concerns over these declines have led to the development of agri-environment schemes designed to mitigate the effects of intensive agriculture and to benefit biodiversity. Prior to commencing this thesis it was not clear if flower-rich, pollinator-focused agri-environment schemes had a population level impact on wild bees on farmland. Whilst previous work has shown that the creation of flower-rich habitat can provide suitable foraging resources for bu

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2

Elbagrmi, Twfeik. "Effects of honeybees on wild pollinators and pollination services in the UK." Thesis, University of Leeds, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.595651.

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This thesis addresses various aspects of the role of competition between European honeybees and wild pollinators on pollinator community structure and pollination services. In experimental studies in flight cages, the presence of foraging honeybees led to a decrease in visitation rate of bumblebees and increased their flower handling time. The travelling rime that bumblebees spent flying between flowers showed a positive relationship with number of honeybees per flower. In a field study, the proximity to a honeybee apiary significantly decreased the abundance of different groups of pollinators

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3

Penado, Andreia de Barros Mendes. "The effects of climate and land abandonment on Iberian bees." Thesis, University of Sussex, 2018. http://sro.sussex.ac.uk/id/eprint/76549/.

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4

Noach-Pienaar, Lee-Ann. "The effects of genotype and/or environment on the phenotypic expressions of mandibular gland signals in honeybees (Apis mellifera)." Thesis, Stellenbosch : Stellenbosch University, 2011. http://hdl.handle.net/10019.1/6887.

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Thesis (PhD (Botany and Zoology))--Stellenbosch University, 2011.<br>ENGLISH ABSTRACT: Insect societies utilize advanced chemical communication systems to organize many aspects of their social life, which among others, include reproduction, thus maintaining colony homeostasis. The queen pheromone complex (QMP), dominated by (E)-9-keto-2-decenoic acid (9ODA) is of integral importance in regulating worker reproductive development. Unique characteristics, associated with reproductive dominance, enabled the successful establishment of Apis mellifera capensis workers as social parasites (or p

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5

Wright, Emma. "The effect of pathogens on honeybee learning and foraging behaviour." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/57266/.

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The European honeybee, Apis mellifera, is important economically not just for honey production but also as a pollinator. Bee pollinated plants contribute towards one third of the food eaten worldwide. However, honeybee numbers in some areas are declining. A range of interacting factors are thought to be involved, including pathogens and parasites, loss of forage, pesticide use, bad weather, and limited genetic variability. Pathogens are also known to cause changes in the behaviour of their hosts and these premortality and sublethal effects of disease may well play a role in colony declines and

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6

Hanekom, Marc C. "The effect of brood and queen pheromones, as well as the colony environment, in the success of Apis mellifera capensis social parasites." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/426.

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7

De, Jager Andries Johannes. "The effect of increased propolis production on the productivity of a honeybee farming system." Thesis, Port Elizabeth Technikon, 2001. http://hdl.handle.net/10948/d1001743.

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This study was conducted to investigate a method for stimulating increased propolis production in Cape honeybee hives. The study took place near George situated in the Southern Cape region of South Africa. Standard Langstroth hives were used (n = 12) containing honeybee colonies of equal strength from the species Apis mellifera capensis. Propolis production in colonies equipped with commercial propolis traps (n = 6) was compared to propolis production in control colonies (n = 6). The strength of the colonies was determined by calculating the area of worker brood cells and the number of frames

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8

RIETH, JOSEPH PAUL. "THE REPELLENT EFFECT OF PYRETHROID INSECTICIDES ON HONEY BEES (APIS MELLIFERA L, PERMETHRIN, CYPERMETHRIN, FENVALERATE)." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183969.

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A model for the repellent effect of pyrethroid insecticides on insects was developed. Experiments were conducted using a small colony of honey bees in a flight cage. Conditioning to scented feeders allowed the separation of foraging bees from a single colony into treatment and control groups. Permethrin, cypermethrin, fenvalerate and flucythrinate were shown to be contact repellents to honey bees; exposure was primarily to the tarsi and ventral abdomen. The threshold dose of permethrin required to induce repellency was ca. 3.8 ng/bee. Repellency was fully reversible within 24 hours. No permane

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9

Wu, Judy Yu. "Sub-lethal effects of pesticide residues in brood comb on worker honey bees (Apis mellifera L.)." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Thesis/Spring2010/j_wu_042110.pdf.

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10

Bennik, Rebecca Marie. "The effects of honeybees on the biodiversity of manuka patches : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Ecology, Massey University, Palmerston North, New Zealand." Massey University, 2009. http://hdl.handle.net/10179/1269.

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Honeybees (Apis mellifera) are important pollinators of many plant species and are employed globally for crop and honey production. However, little is known about the effects of this species on native pollinator and plant species in areas to which they have been introduced; and previous research has not been able to reach a general consensus as to the type of impact honeybees have on pollination systems. In addition to the effects of exotic pollinators, the loss and fragmentation of natural habitats is also of major concern to the continuing diversity of pollinators and plant populations. Here

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11

Squire, Ursula A. "BEE CAUSE: Is Legislative Action Protecting Bees from Neonicotinoids Justified?" PDXScholar, 2016. http://pdxscholar.library.pdx.edu/open_access_etds/2988.

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The potential harm caused to bees and other pollinators by the widespread use of neonicotinoids has the capacity to pose a real and immediate threat to both the environment and humans. The benefits that bees and other pollinators provide, combined with the potential of harm they may face, are important enough to warrant a more comprehensive testing apparatus by which to evaluate threats to their population. Environmentally, bees and other pollinators are an important piece of ecosystemic balance--from pest management to pollination of plants that are a part of many species' diet. Anthropologic

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12

García, G. Graciela. "Centro industrial apicola Honeybees Ltda." Tesis, Universidad de Chile, 2005. http://www.repositorio.uchile.cl/handle/2250/113698.

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Tesis para optar al grado de Magíster en Administración<br>No disponible a texto completo<br>HoneyBees Ltda., se ha formado para producir y comercializar miel floral refinada, de origen chileno y de alta calidad, al demandante Mercado Europeo, como destino fundamental.

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13

Gil, Mariana [Verfasser]. "Reward expectations in honeybees / Mariana Gil." Berlin : Freie Universität Berlin, 2009. http://d-nb.info/1023582619/34.

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14

Golding, Yvonne Carole. "Are droneflies Batesian mimics of honeybees?" Thesis, University of Central Lancashire, 2001. http://clok.uclan.ac.uk/21607/.

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This thesis explores the presumed Batesian mimicry of honeybees (Apis mellifera) (Hymenoptera:Apidae) by droneflies (Eristalis species) (Diptera:Syrphidae). Because droneflies do not show particularly close morphological similarity to honeybees, apart possibly in their size, the work has mainly concentrated on aspects of behaviour which may enhance their mimicry. Analysis of model:mimic ratios revealed that dronefly and honeybee numbers were not consistent with what might be expected if Batesian mimicry was operating. It is suggested that droneflies, which out number their models, may still ga

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15

Litchwark, Simon. "Honeybee declines in a changing landscape: interactive effects of honeybee declines and land-use intensification on pollinator communities." Thesis, University of Canterbury. School of Biological Sciences, 2013. http://hdl.handle.net/10092/9064.

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Honeybees are used as a major agricultural input around the world and their pollination services have been valued at US$14.6 billion to the United States alone. Dramatic declines in honeybee populations around the globe, however, questioned the sustainability of this reliance on a single pollinator species. In this study, I investigated the response of wild pollinator communities to declining honeybee density and changing land use intensity to determine the potential of wild pollinators to compensate for honeybee loss in an increasingly human-modified environment. I generated a gradient of dec

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16

Florea, Mihai Iulian. "Automatic detection of honeybees in a hive." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-206838.

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The complex social structure of the honey bee hive has been the subject of inquiry since the dawn of science. Studying bee interaction patterns could not only advance sociology but find applications in epidemiology as well. Data on bee society remains scarce to this day as no study has managed to comprehensively catalogue all interactions among bees within a single hive. This work aims at developing methodologies for fully automatic tracking of bees and their interactions in infrared video footage. H.264 video encoding was investigated as a means of reducing digital video storage requirements.

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17

Frier, Helen Jane. "Compass orientation during visual learning by honeybees." Thesis, University of Sussex, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321446.

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18

Schlüns, Helge. "Evolutionary aspects of mating and reproduction in honeybees." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971611343.

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19

Williams, Catherine Sian. "Foraging ecology of nectar-collecting bumblebees and honeybees." Thesis, University of Cambridge, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245189.

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20

Mori, Shinnosuke. "Biocommunication between plants and honeybees through pollen fluorescence." Kyoto University, 2019. http://hdl.handle.net/2433/236628.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第21467号<br>農博第2310号<br>新制||農||1064(附属図書館)<br>学位論文||H31||N5162(農学部図書室)<br>京都大学大学院農学研究科地域環境科学専攻<br>(主査)教授平井伸博, 准教授赤松美紀, 教授森直樹<br>学位規則第4条第1項該当

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21

Topley, Elize Lindsay. "Molecular detection and characterisation of RNA viruses of honeybees." Thesis, University of the Western Cape, 2009. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_6220_1298349602.

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<p>Propagation methods for honeybee viruses have not changed since these viruses were discovered. There are no suitable cell lines or cell culture techniques available for honeybee viruses. Honeybee viruses have to be manually injected with virus in order for the virus to multiply and be extracted. With the presence of inapparent viruses which could co-infect pupae, a method for pure virus propagations needs to be found. Recombinant baculovirus systems have been used extensively to produce foreign proteins from different viruses using vectors and recombinant technology. In this chapter we inse

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22

Rolla, Paula Mota Theo. "Behavioral and neurobiological studies of visual processing in honeybees." Toulouse 3, 2011. http://www.theses.fr/2011TOU30111.

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La vision chez l'abeille a été largement étudiée au niveau comportemental, en entraînant des insectes en libre vol à associer des cibles visuelles à une récompense de saccharose, et - dans une moindre mesure - au niveau physiologique, à l'aide d'enregistrements électrophysiologiques intracellulaires de neurones individuels des circuits visuels du cerveau de l'abeille. Notre connaissance des mécanismes du traitement visuel chez cet insecte demeure cependant limitée par le manque de : 1- protocoles de conditionnement pour l'étude de l'apprentissage et de la mémoire visuels chez des abeilles en c

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23

Higginson, Andrew D. "Effects of wing damage on the behaviour of the honeybee Apis mellifera." Thesis, University of Nottingham, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.423653.

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24

Hussaini, Syed Abid [Verfasser]. "Complex forms of learning in honeybees: a behavioral and neural analysis & Sleep in honeybees: its role in learning and memory / Syed Abid Hussaini." Berlin : Freie Universität Berlin, 2008. http://d-nb.info/1022940260/34.

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25

Barnes, M. R. "Characterisation of the causative organisms of European foulbrood in honeybees." Thesis, Cardiff University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539628.

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26

Ramsey, Michael-Thomas. "The ethology of honeybees (Apis mellifera) studied using accelerometer technology." Thesis, Nottingham Trent University, 2018. http://irep.ntu.ac.uk/id/eprint/35491/.

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While the significance of vibrational communication across insect taxa has been fairly well studied, the substrate-borne vibrations of honeybees remains largely unexplored. Within this thesis I have monitored honeybees with a new method, that of logging their short pulsed vibrations on the long term, and I have started the longstanding endeavour of underpinning the applications of it. The use of advanced spectral analysis and machine learning techniques as part of this new method has revealed exciting statistics that challenges previous expert's interpretations. This work is comprised of three

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27

Atmowidjojo, Anita Hanna 1951. "Comparative behavior and physiology of feral and domestic honeybees, Apis mellifera L." Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/278225.

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To determine if temperature and water conservation/collection play a significant role in the success of feral honeybees, experiments in foraging behavior, temperature tolerance, water balance, hemolymph osmolality regulation and uric acid concentrations of both feral and domestic bees were conducted. This study shows that feral honeybees collect larger volumes of liquid and have higher critical thermal maxima (CTMs) than domestic honeybees. Feral bees may need more liquid for thermoregulation than do domestic bees. The rate of water loss did not differ significantly between the two types of ho

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28

Meah, Lianne. "Decision-making and action selection in honeybees : a theoretical and experimental study." Thesis, University of Sheffield, 2018. http://etheses.whiterose.ac.uk/19925/.

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Decision-making is an integral part of everyday life for animals of all species. Some decisions are rapid and based on sensory input alone, others rely on factors such as context and internal motivation. The possibilities for the experimental investigation of choice behaviour in mammals, especially in humans, are seemingly endless. However, neuroscience has struggled to define the neural circuitry behind decision-making processes due to the complex structure of the mammalian brain. For this work we turn to the honeybee for inspiration. With a brain composed of approximately one million neurons

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29

Yang, Ming-Xian. "Studies on mixed-species colonies of honeybees, Apis cerana and Apis mellifera." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1005467.

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The honeybees Apis cerana and Apis mellifera are derived from the same ancestral base about two million years ago. With speciation and evolution, they have acquired many advanced living skills in common, but have also evolved very different living strategies due to different distributions. This thesis is an intensive study of the biology of the mixed-species colonies of these species, the aims of which were to investigate their behavioural relationships and uncover the evolutionary conserved features of their behaviours subsequent to speciation. The results show that the two species can form a

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30

Nouvian, Morgane. "Neural and molecular mechanisms underlying the olfactory modulation of aggression in honeybees." Thesis, Toulouse 3, 2016. http://www.theses.fr/2016TOU30292.

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Malgré leur domestication il y a plus de 7000 ans, gérer la réponse défensive des abeilles, en particulier contre l'Homme, reste un défi. Cet état de fait est dû en partie à la complexité de cette réponse, qui commence par la détection du danger par quelques individus spécialisés et culmine dans une attaque collective, déclenchée par une phéromone d'alarme. Le comportement agressif des abeilles a fait l'objet de nombreuses études à la fois en laboratoire et sur le terrain, qui ont permis d'identifier les éléments déclencheurs et régulateurs de ce comportement. Cependant les mécanismes neuronau

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31

Kraus, Frank Bernhard. "Consequences of mating behaviour on the population ecology of honeybees (Apis mellifera L.)." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969931441.

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32

Riabinina, Olena. "Keeping all eyes on track : visually guided navigation of ants, honeybees and bumblebees." Thesis, University of Sussex, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.499565.

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Insects are an established neurobiological model, in particular in the field of vision and navigation. For an insect traversing a route, the acquisition and processing of the visual information may serve an immediate goal or be remembered for a lifetime. This thesis brings together different approaches to study both short- and long-term visually-driven navigation in Hymenoptera.

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33

Mohammed, Nuru Adgaba. "Geographical races of the honeybees (Apis Mellifera L.) of the Northern regions of Ethiopia." Thesis, Rhodes University, 2003. http://hdl.handle.net/10962/d1007671.

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The ideal climatic conditions and diversity of floral resources allow Ethiopia to sustain millions of honeybee colonies. Beekeeping is widely practiced and plays a significant role in the livelihood of the farming community of the country. Despite this, information on the types of geographical races of honeybees, their behavioural characters and the related ecological factors are not established. In this work an attempt was made to characterise the honeybee populations of the northern parts of Ethiopia based on the analyses of morphological, behavioural and ecological characteristics. For morp

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34

Osborne, Juliet Laura. "Evaluating a pollination system : Borago officinalis and bees." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.360935.

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35

Davison, Paul James. "Social polymorphism and social behaviour in sweat bees (Hymenoptera: Halictidae)." Thesis, University of Sussex, 2016. http://sro.sussex.ac.uk/id/eprint/61422/.

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I use field observations, experiments and molecular techniques to describe the social biology of the sweat bee Lasioglossum calceatum, and to investigate the mechanisms underlying social polymorphism and body size in this species. I also investigate environmental constraints on sociality, and the impact that workers have on productivity, in the obligate social species L. malachurum. Chapter 1 introduces sweat bees as a study system, and reviews social behaviour within the group. I then provide concise introductions to the study species. In Chapter 2 I show that L. calceatum exhibits latitudina

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36

Al, Toufailia Hasan. "Integrated control of honey bee diseases in apiculture." Thesis, University of Sussex, 2016. http://sro.sussex.ac.uk/id/eprint/62056/.

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The honey bee, Apis mellifera, is important both ecologically and economically. Pests and diseases are arguably the greatest current challenge faced by honey bees and beekeeping. This PhD thesis is focused on honey bee disease control including natural resistance by means of hygienic behaviour. It contains eleven independent experiments, ten on honey bee pests and diseases and their control and resistance, and one on stingless bees. Each is written as a separate chapter, Chapters 4 and 14 of this thesis. Chapter 4: How effective is Apistan® at killing varroa? This shows that Apistan is not ver

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Bigio, Gianluigi. "Hygienic behaviour in honey bees." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/51384/.

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This thesis focuses on hygienic behaviour in honey bees. In beekeeping, brood diseases incur heavy economical and biological costs and are no longer effectively treated with chemicals. Previous research has shown how hygienic behaviour, a trait expressed by c. 10% of unselected colonies, can be effective in reducing the impact and presence of such diseases. Hygienic behaviour is experimentally measured using the freeze-killed brood (FKB) bioassay and can be increased by selective breeding, generating lines of hygienic colonies. Chapter 4 demonstrates that the relative rarity of hygienic behavi

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38

Garbuzov, Mihail. "Helping the honey bee and other flower-visiting insects in urban areas." Thesis, University of Sussex, 2014. http://sro.sussex.ac.uk/id/eprint/51671/.

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As is much of the world's biodiversity, bees and other flower-visiting insects are in global decline, largely due to human activities. The impacts of humans on wildlife can be ameliorated, at least to an extent, by wildlife-friendly management practices in both rural and urban areas. This thesis comprises two introductory chapters (Part 1), followed by a series of ten research chapters (Parts 2 - 5) aimed at informing management practices that encourage bees and other flower-visiting insects in urban areas, and ends with a concluding chapter (Part 6). The projects are grouped in four parts mak

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Casey, Leanne Maura. "Using citizen science to monitor bumblebee populations." Thesis, University of Sussex, 2017. http://sro.sussex.ac.uk/id/eprint/68403/.

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Bumblebees are important pollinators of crops and wildflowers and are currently in global decline. The main drivers of decline include agricultural intensification, climate change, invasive species, pesticides, parasites and pathogens and it is thought that these multiple stressors act together to impact populations. However, their relative importance is unknown and there are wide knowledge gaps in relation to the current status of species populations and their response to environmental variables such as climate, habitat and land use change. Citizen science offers a potential method of collect

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Mattos, Igor Médici de [UNESP]. "Efeito da infestação do ácaro Varroa destructor (Anderson e Treuman, 2000) (Arachnida : Acari : Varroidae) no desenvolvimento de abelhas africanizadas Apis mellifera (Linnaeus, 1758) (Hymenoptera: Apidae)." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/99524.

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Made available in DSpace on 2014-06-11T19:30:15Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-07-29Bitstream added on 2014-06-13T21:00:36Z : No. of bitstreams: 1 mattos_im_me_rcla.pdf: 472490 bytes, checksum: 733e43c4674ba211a8a9457fbbfe4b67 (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O ácaro Varroa destructor (Anderson & Treuman, 2000) tem causado danos à apicultura em todo o mundo. No Brasil, as condições climáticas e as linhagens de abelhas não oferecem condições ideais para o parasitismo de ácaros, que se reflete no baixo número de mortes de c

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Smart, Matthew Dixon. "Distribution of microsporidia, Nosema spp., and co-infection with acarine parasites in Pacific Northwest honey bee (Apis mellifera L.) colonies." Pullman, Wash. : Washington State University, 2010. http://www.dissertations.wsu.edu/Thesis/Spring2010/m_smart_060310.pdf.

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Mattos, Igor Médici de. "Efeito da infestação do ácaro Varroa destructor (Anderson e Treuman, 2000) (Arachnida : Acari : Varroidae) no desenvolvimento de abelhas africanizadas Apis mellifera (Linnaeus, 1758) (Hymenoptera: Apidae) /." Rio Claro : [s.n.], 2011. http://hdl.handle.net/11449/99524.

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Orientador: José Chaud Netto<br>Banca: Valter Vieira Alves Junior<br>Banca: Andrigo Monroe Pereira<br>Resumo: O ácaro Varroa destructor (Anderson & Treuman, 2000) tem causado danos à apicultura em todo o mundo. No Brasil, as condições climáticas e as linhagens de abelhas não oferecem condições ideais para o parasitismo de ácaros, que se reflete no baixo número de mortes de colônias, causadas pela varroatose, bem como a estabilidade do nível de infestação. O objetivo deste estudo foi avaliar os danos causados pela infestação de ácaros em colméias mantidas em condições naturais. Para este efeito

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Amssalu, Argaw Bezabeh. "Multivariate morphometric analysis and behaviour of honeybees (Apis Mellifera L.) in the southern regions of Ethiopia." Thesis, Rhodes University, 2003. http://hdl.handle.net/10962/d1003130.

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Morphometric and behavioural characteristics of honeybees, Apis mellifera were analysed using multivariate and bivariate statistical methods to characterise honeybees of southern Ethiopian region. A total of 33800 morphometric character measurements were taken from 2600 individual worker honeybees of 130 honeybee colonies collected at 26 sampling localities with an average inter-locality distance of 89km to determine the occurrence of morphoclusters. 117 experienced farmer beekeepers and beekeeping experts were interviewed on pre-tested questionnaire to investigate the behavioural characterist

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Kirkpatrick, Emma. "Modeling the Suitability of Landscapes for Managed Honeybees - A Case Study in the Northern Great Plains." Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1437147684.

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Vergoz, Vanina, and n/a. "Effects of queen mandibular pheromone on locomotor behaviour and learning in worker honey bees Apis mellifera." University of Otago. Department of Zoology, 2008. http://adt.otago.ac.nz./public/adt-NZDU20081121.161845.

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In a honey bee colony, the queen uses queen mandibular pheromone (QMP) to induce young worker bees to feed and groom her. Among its many behavioural and physiological effects, QMP reduces dopamine levels in the brains of young worker bees. Dopamine is a biogenic monoamine involved in numerous functions including motor control and aversive learning. This study investigates the effects of QMP on motor activities and aversive learning behaviour and the potential link between QMP and dopamine levels in the brain of young bees. In young bees under the age of 15-days, QMP dramatically reduced loco

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Gulduren, Zerrin. "Causes And Consequences Of Seasonal Variation Of Phosphoglucomutase (pgm) Enzyme Polymorphism In Honeybees, (apis Mellifera L.) Of Turkey." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/3/12609357/index.pdf.

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Phosphoglucomutase (PGM) is one of the central enzymes in energy metabolism at a branch point at the head of the metabolic pathway leading into glycogen metabolism, pentose shunt and the main glycolytic cycle, catalyzing the reversible interconversion of glucose-1-phosphate to glucose-6-phosphate. Whole year, month to month analysis of pattern of allozyme variation at Pgm and Hk loci in Apis mellifera L. from three provinces<br>Kirklareli, Artvin, and Hatay revealed that there is significant seasonal variation of allozyme frequencies at Pgm locus (P&lt<br>0.001). The difference in genotype

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Doke, Mehmet Ali. "Analysis Of Environmental Cues Causing The Seasonal Change In Pgm (phosphoglucomutase) Allozyme Frequencies In Honeybees (apis Mellifera L.)." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615187/index.pdf.

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In an earlier project completed in our laboratory a seasonal fluctuation in Phosphoglucomutase (PGM) phenotype frequencies was found, so that the winter bees were almost all heterozygotes and long lived than the summer bees among which homozygotes were significantly at high frequencies at Pgm locus. Same results were obtained in populations of three subspecies, A. m. meda, A. m. caucasica, and A. m. carnica from different climatic regions. In the current study environmental cues related with seasonal change in PGM phenotype frequency was examined along with the correlation between PGM hetero

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Shackleton, Kyle. "Novel aspects of nest defence in stingless bees." Thesis, University of Sussex, 2018. http://sro.sussex.ac.uk/id/eprint/76550/.

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Defence against predators is fundamental to increasing an organism's fitness. My thesis explores this central theme in behavioural ecology using stingless bees as study organisms. The thesis contains a general introduction (Chapter 1), three data chapters (2-4) and a final discussion (5). Chapter 2 is a comparative study of aggression in nest defence among stingless bee species, and describes a new form of nest defence, suicidal biting, which is most prevalent in the genus Trigona. Chapter 3 describes a remarkable behaviour in Partamona helleri, which crashes head-first when entering its nest.

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Hurst, Victoria. "A comparative analysis of the behavioural and cognitive effects of toxin-induced sickness in the rat (Rattus norvegicus) and the honeybee (Apis mellifera)." Thesis, University of Newcastle upon Tyne, 2014. http://hdl.handle.net/10443/2607.

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Tasks designed to measure affective state in animals are valuable in researching the aetiology and treatment of affective disorders in humans. However, many traditional measures are ineffective in assessing affective valence, and judgement bias tasks were designed to overcome this problem. In this thesis I aimed to identify whether rats displayed a judgement bias during sickness, and also whether the task outcomes were translatable to an invertebrate species. A comparative study was performed with a vertebrate (rat) and an invertebrate (honeybee) model exposed to toxin-induced sickness. Behavi

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Jarosch, Antje [Verfasser], Robin Frederik Alexander [Akademischer Betreuer] Moritz, Y. [Akademischer Betreuer] LeConte, and Klaus [Akademischer Betreuer] Hartfelder. "Genetic control reproductive hierarchies in honeybees (Apis mellifera sp.) / Antje Jarosch. Betreuer: Robin Frederik Alexander Moritz ; Y. LeConte ; Klaus Hartfelder." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2012. http://d-nb.info/1025302907/34.

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