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The Influence Of Developmental Temperatures On Division Of Labour In Honeybee Colonies
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Book Synopsis The Influence of Developmental Temperatures on Division of Labour in Honeybee Colonies by : Matthias Adolf Becher
Download or read book The Influence of Developmental Temperatures on Division of Labour in Honeybee Colonies written by Matthias Adolf Becher and published by . This book was released on 2010 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Honeybees (Apis mellifera) are characterised by a sophisticated division of labour among the workers, organized as a temporal polyethism. An important task within the colony is the thermoregulation of the brood nest to maintain an average temperature of ca. 35°C. To record the developmental temperature of the honeybee brood with a high spatial and temporal resolution, a new device was developed, consisting of a grid of 256 thermistors. To investigate the impact of developmental temperature on the division of labour among adult workers, brood was raised in incubators and emerging adults were individually marked and monitored in observation hives. Workers developed under higher temperatures were found to start foraging at younger age. However, a deterministic computer model suggests that this effect has no impact on the division of labour on the colony level. A further experiment addressed the relevance of empty cells in the brood nest area in terms of thermoregulation. No impact of those "gaps" could be determined.
Book Synopsis Nutrition, Hormones, Transcriptional Regulatory Networks and Division of Labor in Honey Bee Colonies by : Seth A. Ament
Download or read book Nutrition, Hormones, Transcriptional Regulatory Networks and Division of Labor in Honey Bee Colonies written by Seth A. Ament and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenotypic plasticity 0́3 one genotype producing alternative phenotypes 0́3 is increasingly understood to be an important force in phenotypic evolution, but its mechanistic basis remains poorly understood. This thesis describes research into the molecular mechanisms underlying age-related behavioral and physiological plasticity in worker honey bees. Many animals are able to alter their behavior and physiology in response to changes in the environment. At times, these changes in behavior and physiology are stable for long periods, a phenomenon known as phenotypic plasticity [1]. For instance, short periods of food deprivation stimulate feeding and the mobilization of stored nutrients to meet an individual0́9s immediate energetic needs. But prolonged food deprivation can also lead to much longer-term effects, causing individuals to enter extended periods of inactivity, alter their reproductive strategy, or lose their position in a dominance hierarchy. In humans, chronic food deprivation early in life may lead to a propensity toward obesity and diabetes in later life (for an expanded and fully-referenced discussion of nutritionally-mediated phenotypic plasticity see Chapter 4). The mechanisms that enable and constrain plasticity in behavior and physiology are not well understood, but it is clear that they often involve coordinated and long-lasting changes in gene expression, brain circuitry, brain chemistry, and endocrine signaling [2]. My doctoral research has focused on understanding the molecular basis for nutritionally- and hormonally-mediated plasticity in the behavior and physiology of worker honey bees. Honey bees are social insects, living together in colonies containing tens of thousands of individuals [3]. Colony life is organized by a complex and sophisticated division of labor. Each colony contains a single queen, who is specialized for reproduction and spends most of her time laying eggs. Males, called drones, are relatively rare, and their sole role is to mate. The vast majority of the individuals in the hive are sterile worker bees that are responsible for all of the other tasks performed by the colony. The tasks performed by worker bees are further divided up among individuals via a process of behavioral maturation that is the focus of this thesis. For the first 2-3 weeks of adult life, worker bees specialize on broodcare (0́−nursing0́+). They then switch for a few days to any of a number of more specialized tasks such as building honeycomb cells, storing food in honeycomb cells, or guarding the hive entrance against intruders. Finally, for the remaining 1-2 weeks of their life, worker bees forage outside the hive for nectar and pollen, the colony0́9s sole sources of food. The work presented in this thesis builds on previous findings demonstrating links between worker honey bee division of labor and nutrition (reviewed in Chapter 4). Behavioral maturation in worker bees is coupled to changes in nutritional physiology, including a dramatic and stable loss of abdominal lipid that occurs prior to the onset of foraging. Moreover, previous studies had demonstrated that nutritional status can have causal influences on the timing of behavioral maturation and manipulations of a few feeding- or nutritionally-related genes accelerates or delays the age at onset of foraging. In the work described here, I first test the hypothesis that worker bee behavioral maturation, a highly derived trait, is regulated, in part, by conserved nutritionally-related hormones (Chapter 1). I demonstrate that genes related to insulin signaling are differentially expressed in the brains and fat bodies of nurses and foragers. Furthermore, I show that manipulation of the insulin-related TOR pathway influences the age at which bees initiate foraging. These results suggest that the evolution of honey bee social behavior involved new roles for ancient nutritionally-related pathways. However, my subsequent work shows that not all nutritionally-related pathways have been coopted in the same way. I describe a more complex, and less resolved, relationship between behavioral state, nutrition and brain gene expression for a second nutritionally-related hormone, Neuropeptide Y (Chapter 2). Next, using transcriptomic experiments, I demonstrate that maturation, as well as age-related stable lipid loss, involve massive changes in gene expression in the fat bodies (Chapter 3). I show that these changes in gene expression involve age-related changes in the responsiveness of hormonally and metabolically related pathways to nutrition, and roles for two evolutionarily novel, non-dietary factors: the storage protein vitellogenin and Queen Mandibular Pheromone, each of which influenced many maturationally-related genes in the fat bodies. These results also suggest the involvement in the responses to all these factors of a single nutritionally-related hormone, juvenile hormone (JH), which had previously been shown to pace behavioral maturation. In Chapter 4, I review my findings from chapters 1-2 of this thesis, and previous studies, and propose a molecular systems biology approach to understanding division of labor. Specifically, I propose that phenotypic plasticity in worker honey bees involves nutritionally- and hormonally-driven changes in transcriptional regulatory networks in the fat bodies (as well in the brain), and I suggest methodologies for their elucidation. Finally, in Chapter 5, I utilize the molecular systems biology approach outlined in Chapter 4 to show that a transcriptional regulatory network in the fat bodies underlies division of labor. I show that a juvenile hormone-related transcription factor, Ultraspiracle (USP), influences the age at onset of foraging. I then use a combination of chromatin immunoprecipitation0́4genomic tiling microarrays, RNAi and deep mRNA sequencing to develop a model of the USP transcriptional regulatory network in fat cells. My results suggest that JH and USP function together to induce and maintain alternative states of a transcriptional regulatory network. These alternative states may well underlie the two basic phases of worker bee life, the in-hive and foraging phases. Together, the studies presented in this thesis provide insights into the relationship between nutrition, hormones, transcriptional regulation, and phenotypic plasticity. References 1. West-Eberhard, MJ. Developmental Plasticity and Evolution. 2003. Oxford University Press, New York, NY. 794 pp. 2. Robinson, GE, Fernald, RD, Clayton, DF. Genes and social behavior. Science. 2008 Nov 7; 322(5903):896-900. doi:10.1126/science.1159277 3. Winston, ML. The Biology of the Honey Bee. 1987. Harvard University Press, Cambridge, MA. 294 pp.
Book Synopsis Neurobiology of Chemical Communication by : Carla Mucignat-Caretta
Download or read book Neurobiology of Chemical Communication written by Carla Mucignat-Caretta and published by CRC Press. This book was released on 2014-02-14 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intraspecific communication involves the activation of chemoreceptors and subsequent activation of different central areas that coordinate the responses of the entire organism—ranging from behavioral modification to modulation of hormones release. Animals emit intraspecific chemical signals, often referred to as pheromones, to advertise their presence to members of the same species and to regulate interactions aimed at establishing and regulating social and reproductive bonds. In the last two decades, scientists have developed a greater understanding of the neural processing of these chemical signals. Neurobiology of Chemical Communication explores the role of the chemical senses in mediating intraspecific communication. Providing an up-to-date outline of the most recent advances in the field, it presents data from laboratory and wild species, ranging from invertebrates to vertebrates, from insects to humans. The book examines the structure, anatomy, electrophysiology, and molecular biology of pheromones. It discusses how chemical signals work on different mammalian and non-mammalian species and includes chapters on insects, Drosophila, honey bees, amphibians, mice, tigers, and cattle. It also explores the controversial topic of human pheromones. An essential reference for students and researchers in the field of pheromones, this is also an ideal resource for those working on behavioral phenotyping of animal models and persons interested in the biology/ecology of wild and domestic species.
Download or read book Advances in Insect Physiology written by and published by Academic Press. This book was released on 2020-11-13 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Insect Physiology, Volume 59, examines the molecular and developmental origins of insect extended phenotypes, their diverse physiological functions, their consequences for the ecology and evolution of insects, and their biotic partners. Chapters cover recent ideas about the significance and roles of extended phenotypes and provide overviews of the latest advances. Written for a broad audience of researchers and students, the book's chapters establish extended phenotypes as focal structures for understanding genotype-to-phenotype maps, the origins and consequences of complex traits among multiple interacting partners, and the roles they may play in providing resilience against climate change. Compiles and synthesizes the latest advances in understanding extended phenotypes Provides detailed information on molecular and cellular mechanisms underpinning formation and control of extended phenotypes Gives comprehensive implications of extended phenotypes for ecology, evolution and applied systems
Book Synopsis Honeybee Ecology by : Thomas D. Seeley
Download or read book Honeybee Ecology written by Thomas D. Seeley and published by Princeton University Press. This book was released on 2014-07-14 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents honeybees as a model system for investigating advanced social life among insects from an evolutionary perspective. Originally published in 1985. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.
Book Synopsis Insects at Low Temperature by : Richard Lee
Download or read book Insects at Low Temperature written by Richard Lee and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of insects at low temperature is a comparatively new field. Only recently has insect cryobiology begun to mature, as research moves from a descriptive approach to a search for underlying mechanisms at diverse levels of organization ranging from the gene and cell to ecological and evolutionary relationships. Knowledge of insect responses to low temperature is crucial for understanding the biology of insects living in seasonally varying habitats as well as in polar regions. It is not possible to precisely define low temperature. In the tropics exposure to 10-15°C may induce chill coma or death, whereas some insects in temperate and polar regions remain active and indeed even able to fly at O°C or below. In contrast, for persons interested in cryopreservation, low temperature may mean storage in liquid nitrogen at - 196°C. In the last decade, interest in adaptations of invertebrates to low temperature has risen steadily. In part, this book had its origins in a symposium on this subject that was held at the annual meeting of the Entomological Society of America in Louisville, Kentucky, USA in December, 1988. However, the emergence and growth of this area has also been strongly influenced by an informal group of investigators who met in a series of symposia held in Oslo, Norway in 1982, in Victoria, British Columbia, Canada in 1985 and in Cambridge, England in 1988. Another is scheduled for Binghamton, New York, USA (1990).
Book Synopsis Information Processing in Social Insects by : Claire Detrain
Download or read book Information Processing in Social Insects written by Claire Detrain and published by Birkhäuser. This book was released on 2012-12-06 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Claire Detrain, Jean-Louis Deneubourg and Jacques Pasteels Studies on insects have been pioneering in major fields of modern biology. In the 1970 s, research on pheromonal communication in insects gave birth to the dis cipline of chemical ecology and provided a scientific frame to extend this approach to other animal groups. In the 1980 s, the theory of kin selection, which was initially formulated by Hamilton to explain the rise of eusociality in insects, exploded into a field of research on its own and found applications in the under standing of community structures including vertebrate ones. In the same manner, recent studies, which decipher the collective behaviour of insect societies, might be now setting the stage for the elucidation of information processing in animals. Classically, problem solving is assumed to rely on the knowledge of a central unit which must take decisions and collect all pertinent information. However, an alternative method is extensively used in nature: problems can be collectively solved through the behaviour of individuals, which interact with each other and with the environment. The management of information, which is a major issue of animal behaviour, is interesting to study in a social life context, as it raises addi tional questions about conflict-cooperation trade-oft's. Insect societies have proven particularly open to experimental analysis: one can easily assemble or disassemble them and place them in controllable situations in the laboratory.
Book Synopsis Evolution of Postembryonic Development by : Nico Posnien
Download or read book Evolution of Postembryonic Development written by Nico Posnien and published by Frontiers Media SA. This book was released on 2022-03-24 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Honeybees of Africa by : H. Randall Hepburn
Download or read book Honeybees of Africa written by H. Randall Hepburn and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of the honeybees of Africa on a subspecies as well as by country basis. Includes an updated multivariate analysis of the subspecies based on the merger of the Ruttner database (Oberursel) and that of Hepburn & Radloff (Grahamstown) for nearly 20,000 bees. Special emphasis is placed on natural zones of hybridisation and introgression of different populations; seasonal cycles of development in different ecological-climatological zones of the continent; swarming, migration and absconding; and an analysis of the bee flora of the continent. The text is supplemented by tables containing quantitative data on all aspects of honeybee biology, and by continental and regional maps.
Book Synopsis A Practical Manual Of Beekeeping by : David Cramp
Download or read book A Practical Manual Of Beekeeping written by David Cramp and published by Spring Hill. This book was released on 2008-10-31 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fascinating hobby; a remunerative business; or a globetrotting career? Which type of beekeeper do you want to be? It is entirely up to you: beekeeping can provide it all.Beekeeping can provide anyone with an interesting and useful hobby or a lucrative and rewarding business. It is recognised as a vital agricultural industry and can therefore also offer you a globe trotting career. The whole subject is, however, often shrouded in mystery and loaded with jargon, leaving many people unaware of its true potential or how to start. This book strips away all the mystery and explains step by step how - from day one - you can start beekeeping as a hobby; how you can progress to running a beekeeping business; or how you can start a career as a beekeeper which can quite easily take you all over the world. No other guide explains in such detail the true potential and accessibility of beekeeping or of being a beekeeper.
Book Synopsis Stingless Bees by : Christoph Grüter
Download or read book Stingless Bees written by Christoph Grüter and published by Springer Nature. This book was released on 2020-12-03 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stingless bees (Meliponini) are the largest and most diverse group of social bees, yet their largely tropical distribution means that they are less studied than their relatives, the bumble bees and honey bees. Stingless bees produce honey and collect pollen from tens of thousands of tropical plant species and, in the process, provide critical pollination services in the tropics. Like many other insects, they are struggling with new human-made challenges like habitat destruction, climate change and new diseases. This book provides an overview of stingless bee biology, with chapters on the evolutionary history, nesting biology, colony organisation and division of labour of stingless bees. In addition, it explores their defence strategies, foraging ecology, and varied communication methods. Accordingly, the book offers an accessible introduction and reference guide for students, researchers and laypeople interested in the biology of bees.
Download or read book Advances in Insect Physiology written by and published by Elsevier. This book was released on 2011-09-21 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Insect Physiology publishes eclectic volumes containing important, comprehensive and in-depth reviews on all aspects of insect physiology. It is an essential reference source for invertebrate physiologists and neurobiologists, entomologists, zoologists and insect biochemists. First published in 1963, the serial is now edited by Steve Simpson (Oxford University, UK). More than 300 pages with contributions from the leading researchers in entomology Over 40 figures and illustrations combined Includes an in-depth review of the genetics of the honey bee Discusses the physiological diversity in insects
Book Synopsis The Spirit of the Hive by : Robert E. Page Jr.
Download or read book The Spirit of the Hive written by Robert E. Page Jr. and published by Harvard University Press. This book was released on 2013-06-17 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: Charles Darwin struggled to explain how forty thousand bees working in the dark, seemingly by instinct alone, could organize themselves to construct something as perfect as a honey comb. How do bees accomplish such incredible tasks? Synthesizing the findings of decades of experiments, The Spirit of the Hive presents a comprehensive picture of the genetic and physiological mechanisms underlying the division of labor in honey bee colonies and explains how bees’ complex social behavior has evolved over millions of years. Robert Page, one of the foremost honey bee geneticists in the world, sheds light on how the coordinated activity of hives arises naturally when worker bees respond to stimuli in their environment. The actions they take in turn alter the environment and so change the stimuli for their nestmates. For example, a bee detecting ample stores of pollen in the hive is inhibited from foraging for more, whereas detecting the presence of hungry young larvae will stimulate pollen gathering. Division of labor, Page shows, is an inevitable product of group living, because individual bees vary genetically and physiologically in their sensitivities to stimuli and have different probabilities of encountering and responding to them. A fascinating window into self-organizing regulatory networks of honey bees, The Spirit of the Hive applies genomics, evolution, and behavior to elucidate the details of social structure and advance our understanding of complex adaptive systems in nature.
Book Synopsis The Wisdom of the Hive by : Thomas D Seeley
Download or read book The Wisdom of the Hive written by Thomas D Seeley and published by Harvard University Press. This book was released on 2009-06-30 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes and illustrates the results of more than fifteen years of elegant experimental studies conducted by the author to investigate how a colony of bees is organized to gather its resources. The results of his research--including studies of the shaking signal, tremble dance, and waggle dance--offer the clearest, most detailed picture available of how a highly integrated animal society works.
Book Synopsis The Small Hive Beetle by : Norman L. Carreck
Download or read book The Small Hive Beetle written by Norman L. Carreck and published by . This book was released on 2017-07-14 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: The small hive beetle Aethina tumida is native to sub-Saharan Africa, where it is not generally considered a pest. Its arrival in 1996 in the south east of the United States was unexpected, as was the devastating effect it had on colonies. It has since spread to Australia, Canada, and Mexico. An isolated incursion in Portugal, Europe in 2004 was successfully eradicated. The discovery of the beetle in south west Italy in September 2014, and subsequent continuing control efforts have brought new attention to the beetle by beekeepers, scientists and governments. This book intended for beekeepers derives from a conference organised by the COLOSS association and held at CRA-API, Bologna, Italy. In its seven chapters the world's experts on the small hive beetle discuss its biology and spread, and suggest practical ways of living with the pest.
Book Synopsis Honeybee Neurobiology and Behavior by : C. Giovanni Galizia
Download or read book Honeybee Neurobiology and Behavior written by C. Giovanni Galizia and published by Springer Science & Business Media. This book was released on 2011-11-25 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a sequel of a similar book, edited by Randolf Menzel and Alison Mercer, “Neurobiology and Behavior of Honeybees”, published in 1987. It is a “Festschrift” for the 70th birthday of Randolf Menzel, who devoted his life to the topic of the book. The book will include an open commentary for each section written by Randolf Menzel, and discussed with the authors. The written contributions take their inspiration from a symposium on the topic, with all the authors, that was held in Berlin in summer 2010
Book Synopsis Honey Bees, Beekeeping and Bee Products by : Aijaz Ahmad Wachkoo
Download or read book Honey Bees, Beekeeping and Bee Products written by Aijaz Ahmad Wachkoo and published by CRC Press. This book was released on 2024-03-14 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: Honey bees are social insects; they live together in large, well-organized family groups comprising three castes: queen (fertile female), workers (sterile females) and drones (males). During honey flow season, there is a considerable increase in the foraging activity of the workers and in the rate of egg laying by the queen. Sex determination in honey bees involves a multi-allelic locus, such that homozygotes develop as males and heterozygotes as females, whereas diet quality influences the caste determination in honey bees. Like all living organisms, honey bees can be infested with diseases and pests. Some of these are more deleterious to bee colonies than others, but it is important for the beekeeper to be able to recognize conditions that might be disease or pest-related and respond accordingly so as to improve the quality of honey and honey bee by-products. The best-known primary products of beekeeping are honey and wax, but pollen, propolis, royal jelly, venom, queens, bees and their larvae are also marketable primary bee products. The purpose of this book is to make available information on bee biology and beekeeping as well as to provide comprehensive information on manufacturing, processing and marketing of value-added bee products. This book has been designed as a useful tool for the many diverse professionals who characterize and market honey bee products, including beekeepers, non-beekeepers, small entrepreneurs, extension officers and those involved in small business development. This edited book will be the first of its kind to contain comprehensive information on both bees and bee products. Key Features: Contains comprehensive information on beekeeping. Discusses the recent advances in beekeeping. Sheds light on bee colony integration and organization. Contains brief information on honey bee products.
