Download or read book Insect Accessory Reproductive Structures written by M.S. Kaulenas and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: In retrospect, the range of topics covered in this monograph, although forming a coherent ensemble, is so extensive that a detailed discussion could easily extend to three or four times the current length. My approach has been to identify the critical issues, summarize the major accomplishments, and to suggest promising avenues for future research. To facilitate this sum mary presentation, I have limited the literature review largely to material published after 1970, extending to material appearing late in 1990. I gratefully acknowledge the advice of many colleagues, particularly the valuable criticisms of Drs. Warren Burggren, Joseph Kunkel, Randall Phillis, and John Stoffolano. I also wish to thank Mrs. Elizabeth Brooks for secretarial assistance. Finally, thanks are due to Dr. D. Czeschlik and his staff at Springer Verlag for their patience and support. Amherst, MA, October 1991 M. S. KAULENAS V Contents Chapter 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Chapter 2 The Reproductive Elferent Duct Systems and Associated Structures. Development and Genetic Control of Differentiation . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. 1 Origin of the Germ Cells and Associated Cells and Tissues . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. 2 Differentiation of the Efferent Duct System and Associated Structures . . . . . . . . . . . . . . . . . . . 9 2. 2. 1 The Male System . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2. 2. 2 The Female System . . . . . . . . . . . . . . . . . . . . . . . . . 13 2. 3 Genetic Control of Sexual Differentiation . . . . . 16 2. 3. 1 Daughterless. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 2. 3. 2 Sex Determination: Measurement of the X:A Ratio. . . . . . . . . . . . . . . . . . . . . . . . . . 20 2. 3. 3 Sex Lethal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 2. 3. 4 Genes Controlling Somatic Sexual Differentiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2. 3. 5 Dosage Compensation . . . . . . . . . . . . . . . . . . . . . .
Download or read book Insect Ultrastructure written by H. Akai and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cell biology is moving at breakneck speed, and many of the results from studies on insects have helped in understanding some of the central problems of biology. The time is therefore ripe to provide the scientific community with a series of up-to-date, well illustrated reviews of selected aspects of the sub microscopic cytology of insects. The topics we have included fall into four general groups: seven chapters deal with gametogenesis, four concern develop ing somatic cells, seventeen chapters describe specialized tissues and organs, and three chapters cover cells in pathological states. These accounts are illustrated with over 600 electron micrographs. The more than 1100 pages in the two volumes of Insect Ultrastructure combined labors of 49 dedicated contributors from II countries. represent the These authors have digested and critically summarized a very large body of information, and some measure of this effort can be gained from consulting the bibliographies that close each of the 31 chapters. These contain 2400 publica tions authored by 1500 different scientists. However, before we congratulate ourselves on the advanced state of our knowledge, it is worth remembering that representatives of less than 0.01 % of the known species of insects have been examined with the electron microscope.
Download or read book Insect Reproduction written by S. R. Leather and published by CRC Press. This book was released on 2018-01-18 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consisting of ten review chapters contributed by leading workers in their respective fields, from around the world, covers the whole subject of insect reproduction.It begins with the basic physiological questions of insect reproduction, moves on to discuss the new advances seen in the fields of behavioural and ecological mechanisms, and culminates by examining the recent work on evolutionary biology and its application in the field. Each chapter, although including a brief review of the basic seminal work, focuses mainly on the advances made within the last ten years and highlights those areas in which the respective authors see the greatest scope for further important advances
Download or read book The Physiology of Insect Reproduction written by Franz Engelmann and published by Pergamon. This book was released on 1970 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Physiology of Insect Reproduction provides a comprehensive coverage of insect reproductive system. The title details basic phenomena governing reproductive processes in insects, with the whole spectrum of an insect reproductive cycle. The text first covers insect genitalia, and proceeds to discussing sex determination. Next, the selection talks about the development of unfertilized eggs in insects. The text also deals with gonadal development, along with insect mating behavior. Chapter 7 details the factors that affect egg production and fecundity, while Chapter 8 tackles hormonal control ...
Download or read book Positional Relationships Among Male Reproductive Organs in Insects written by Satoshi Hiroyoshi and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The location, morphology and function of male internal reproductive organs in insects have been extensively studied, but the relative positioning of those organs is less understood. Position and morphology of the testis, vas deferens, seminal vesicle, accessory gland and ejaculatory duct determine the migration or ejaculation of sperm and other substances. In species where the testis is connected with the seminal vesicle directly or the seminal vesicle is lacking, males usually store complete sperm in the testis and thus can use them immediately for mating. In contrast, the testis of lepidopteran insects is separated from the duplex (sperm storage organ) via the vas deferens, and the sperm are not mature, requiring morphological development in the vas deferens. Here, we discuss the significance of various positional relationships of male reproductive organs and how this relates to their morphology and function with a focus on sperm.
Download or read book Male Reproductive Anatomy written by Wei Wu and published by BoD – Books on Demand. This book was released on 2022-01-19 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: The male reproductive system, which is made up of the testes, scrotum, epididymis, vas deferens, seminal vesicles, prostate gland, bulbourethral gland, ejaculatory duct, urethra, and penis, functions mainly in the production, nourishment, and temporary storage of spermatozoa. Epigenetic modifications are essential to regulate normal gonadal development and spermatogenesis. The sperm epigenome is highly susceptible influence by a wide spectrum of environmental stimuli. This book focuses on the male reproductive system, discussing topics ranging from aspects of anatomy and risk factors for male infertility to clinical techniques and management of male reproductive health.
Download or read book Encyclopedia of Entomology written by John L. Capinera and published by Springer Science & Business Media. This book was released on 2008-08-11 with total page 1062 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bringing together the expertise of over 450 distinguished entomologists from 40 countries, this exhaustive work provides a global overview of insects and their close relatives. It is designed as an introduction to this fascinating group of animals.
Download or read book The Insect Ovary written by Jürgen Büning and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will give an overview of insect ovaries, showing the diversities and the common traits in egg growth processes. The idea to write this book developed while looking at the flood of information which appeared in the early 1980s on early pattern formation in Drosophila embryos. At this time a significant breakthrough was made in studies of this little fly, combining molecular biological methods with classical and molecular genetics. The answers to questions about early pattern formation raised new questions about the architecture of ovaries and the growth of eggs within these ovaries. However, by concentrating only on Drosophila it is not possible to form an adequate picture of what is going on in insect ovaries, since the enormous diversity found among insects is not considered sufficiently. Almost forgotten, but the first to study the architecture of ovaries, was Alexander Brandt writing in 1878 in aber das Ei und seine Bildungsstaette (On the egg and its organ of development). More than 100 years later, a series of ten books or more would be required to survey all the serious informa tion we have today on insect oogenesis. Thus, this book is a personal selection and personal view on the theme, and the authors must be excused by all those scientists whose papers could not be included. The book briefly describes the ectodemes, i. e.
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 The Biology of Reproduction written by Giuseppe Fusco and published by Cambridge University Press. This book was released on 2019-10-10 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: A look into the phenomena of sex and reproduction in all organisms, taking an innovative, unified and comprehensive approach.
Download or read book Insect Reproduction written by S. R. Leather and published by CRC Press. This book was released on 2018-01-18 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consisting of ten review chapters contributed by leading workers in their respective fields, from around the world, covers the whole subject of insect reproduction.It begins with the basic physiological questions of insect reproduction, moves on to discuss the new advances seen in the fields of behavioural and ecological mechanisms, and culminates by examining the recent work on evolutionary biology and its application in the field. Each chapter, although including a brief review of the basic seminal work, focuses mainly on the advances made within the last ten years and highlights those areas in which the respective authors see the greatest scope for further important advances
Download or read book Mammalian Sexuality written by Alan F. Dixson and published by Cambridge University Press. This book was released on 2021-06-03 with total page 405 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first detailed account of post-copulatory sexual selection and the evolution of reproduction in mammals.
Download or read book Chemoecology of Insect Eggs and Egg Deposition written by Monika Hilker and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book focusing on the chemoecology of insect eggs and egg deposition. It covers a wide range of different issues including herbivorous and carnivorous insects, social insects and those of medical and veterinary importance. The knowledge compiled in this book may promote future studies on evolutionary aspects on insect reproductive behaviour as well as on controlling insect pests by targeting the egg stage.
Download or read book Sperm Competition and Its Evolutionary Consequences in the Insects written by Leigh W. Simmons and published by Princeton University Press. This book was released on 2019-12-31 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: One hundred years after Darwin considered how sexual selection shapes the behavioral and morphological characteristics of males for acquiring mates, Parker realized that sexual selection continues after mating through sperm competition. Because females often mate with multiple males before producing offspring, selection favors adaptations that allow males to preempt sperm from previous males and to prevent their own sperm from preemption by future males. Since the 1970s, this area of research has seen exponential growth, and biologists now recognize sperm competition as an evolutionary force that drives such adaptations as mate guarding, genital morphology, and ejaculate chemistry across all animal taxa. The insects have been critical to this research, and they still offer the greatest potential to reveal fully the evolutionary consequences of sperm competition. This book analyzes and extends thirty years of theoretical and empirical work on insect sperm competition. It considers both male and female interests in sperm utilization and the sexual conflict that can arise when these differ. It covers the mechanics of sperm transfer and utilization, morphology, physiology, and behavior. Sperm competition is shown to have dramatic effects on adaptation in the context of reproduction as well as far-reaching ramifications on life-history evolution and speciation. Written by a top researcher in the field, this comprehensive, up-to-date review of the evolutionary causes and consequences of sperm competition in the insects will prove an invaluable reference for students and established researchers in behavioral ecology and evolutionary biology.
Download or read book Equine Reproductive Physiology Breeding and Stud Management 5th Edition written by Mina C.G. Davies Morel and published by CABI. This book was released on 2020-11-02 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Equine Reproductive Physiology Breeding and Stud Management, 5th Edition provides a thorough grounding in equine reproductive anatomy and physiology and applies it to all aspects of breeding and stud management. This includes detailed coverage of the management of mares, stallions and foals, as well as stud management practicalities such as infertility, artificial insemination and advanced reproductive techniques. This textbook, which has been updated throughout with additional material and references, continues to provide an authoritative treatise on equine reproduction for students, practising veterinary surgeons and stud managers.
Download or read book Biology of Blood Sucking Insects written by Mike Lehane and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Blood-sucking insects are the vectors of many of the most debilitating parasites of man and his domesticated animals. In addition they are of considerable direct cost to the agricultural industry through losses in milk and meat yields, and through damage to hides and wool, etc. So, not surprisingly, many books of medical and veterinary entomology have been written. Most of these texts are organized taxonomically giving the details of the life-cycles, bionomics, relationship to disease and economic importance of each of the insect groups in turn. I have taken a different approach. This book is topic led and aims to discuss the biological themes which are common in the lives of blood-sucking insects. To do this I have concentrated on those aspects of the biology of these fascinating insects which have been clearly modified in some way to suit the blood-sucking habit. For example, I have discussed feeding and digestion in some detail because feeding on blood presents insects with special problems, but I have not discussed respiration because it is not affected in any particular way by haematophagy. Naturally there is a subjective element in the choice of topics for discussion and the weight given to each. I hope that I have not let my enthusiasm for particular subjects get the better of me on too many occasions and that the subject material achieves an overall balance.
Download or read book Cephalopod Behaviour written by Roger T. Hanlon and published by Cambridge University Press. This book was released on 2018-03-22 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: A fully updated overview of the causation, function, development and evolution of cephalopod behaviour, richly illustrated in full colour.
