Download or read book Studies on Arthropoda written by Hans Jacob Hansen and published by . This book was released on 1921 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Arthropoda written by Hans Jacob Hansen and published by . This book was released on 1930 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arthropod Biology and Evolution written by Alessandro Minelli and published by Springer Science & Business Media. This book was released on 2013-04-11 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: More than two thirds of all living organisms described to date belong to the phylum Arthropoda. But their diversity, as measured in terms of species number, is also accompanied by an amazing disparity in terms of body form, developmental processes, and adaptations to every inhabitable place on Earth, from the deepest marine abysses to the earth surface and the air. The Arthropoda also include one of the most fashionable and extensively studied of all model organisms, the fruit-fly, whose name is not only linked forever to Mendelian and population genetics, but has more recently come back to centre stage as one of the most important and more extensively investigated models in developmental genetics. This approach has completely changed our appreciation of some of the most characteristic traits of arthropods as are the origin and evolution of segments, their regional and individual specialization, and the origin and evolution of the appendages. At approximately the same time as developmental genetics was eventually turning into the major agent in the birth of evolutionary developmental biology (evo-devo), molecular phylogenetics was challenging the traditional views on arthropod phylogeny, including the relationships among the four major groups: insects, crustaceans, myriapods, and chelicerates. In the meantime, palaeontology was revealing an amazing number of extinct forms that on the one side have contributed to a radical revisitation of arthropod phylogeny, but on the other have provided evidence of a previously unexpected disparity of arthropod and arthropod-like forms that often challenge a clear-cut delimitation of the phylum.
Download or read book Studies on the Eyes of Arthropods written by William Patten and published by . This book was released on 1888 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Crustacea and Arthropod Relationships written by Stefan Koenemann and published by CRC Press. This book was released on 2005-04-27 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Compared to other arthropods, crustaceans are characterized by an unparalleled disparity of body plans. Traditionally, the specialization of arthropod segments and appendages into distinct body regions has served as a convenient basis for higher classification; however, many relationships within the phylum Arthropoda still remain controversial.
Download or read book Glycoscience Biology and Medicine written by Tamao Endo and published by Springer. This book was released on 2021-01-14 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of the book is to provide a succinct overview of the current status of glycoscience from both basic biological and medical points of view and to propose future directions, in order to facilitate further integrations of glycoscience with other fields in biological and medical studies. Glycans (carbohydrate oligomers) are the so-called “building blocks” of carbohydrates, nucleic acids, proteins and lipids and play major roles in many biological phenomena as well as in various pathophysiological processes. However, this area of glycoscience has been neglected from the research community because glycan structures are very complex and functionally diverse and as compared to proteins and nucleic acids simple tools for the amplification, sequencing and auto-synthesis of glycans are not available. Many scientists in other fields of research have now realized that glycosylation, i.e. the addition of glycans to a protein backbone, is the most abundant post translational modification reactions and is an important field of research and sometimes they require a glycobiology and/or glycochemistry approach to be used. It is still difficult, however, for non-expert researchers to use these techniques. This book will provide numerous but simple overviews of current topics and protocols for the experiments. The book is aimed at university students and above, including non-experts in the field of glycoscience.
Download or read book Focus on Arthropods Research written by Mirko Messana and published by . This book was released on 2018 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plant-insect interaction has remained stable for more than 300 million years, a fact that correlates with these groups' capacity to connect with their counterparts for reproduction, protection and feeding, among other things. Focus on Arthropods Research opens with an analysis of the various factors that influence these communities. Some studies suggest that genetic, chemical and morphological variability of host plants are the most influential factors.The following chapter examines whether it is possible to infer the types and durations of embryonized larval stages in higher decapod species based on equivalent free-living stages of dendrobranchiate prawns, assuming the dendrobranchiate development pattern is ancestral to that of the entire Decapoda. Stage-specific development times of dendrobranchiate crustaceans were obtained from previous studies and analyzed across species to quantify the proportions of total development spent in each stage and phase.Some arthropods, like the beetle Scaurus punctatus (Coleoptera: Tenebrionidae) are considered beneficial in terrestrial ecosystems of southern Europe due to their detritivore activity. There is little information available on their parasites and their effect on the beetles. Thus, the closing chapter provides new insight on aspects such as epizootiology, biology and the impact of gregarines in these insects.
Download or read book Studies on Arthropoda written by Hans Jacob Hansen and published by . This book was released on 1931 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Arthropoda written by Hans Jakob Hansen and published by . This book was released on 1925 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arthropod Fossils and Phylogeny written by Gregory D. Edgecombe and published by Columbia University Press. This book was released on 1998 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gregory Edgecombe has assembled premier specialists in the study of arthropods, each of whom addresses a major issue in arthropod diversity by reviewing evidence of key fossils from a common perspective and examining the interplay between extinct and extant species through inference of the structure of the arthropod evolutionary tree.With the most complete collection of modern perspectives on the history of Arthropoda, this volume advances the current debate on paleontology's role in discovering life's hierarchy. Of interest to specialists in a wide range of fields including paleontology, petroleum geology, oceanography, and entomology, Arthropod Fossils and Phylogeny will be the standard general reference on arthropod paleontology for years to come.
Download or read book Studies on Arthropoda written by Hans Jacob Hansen and published by . This book was released on 1925 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Arthropoda written by H J Hansen and published by Palala Press. This book was released on 2016-05-16 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Download or read book Studies on Arthropoda written by Hans Jakob Hansen and published by . This book was released on 1921 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies on Arthropoda by Dr H J Hansen written by Hans Jacob Hansen and published by . This book was released on 1921 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arthropod Collection and Identification written by Timothy J. Gibb and published by Academic Press. This book was released on 2010-07-26 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arthropods are the most numerous and diverse group of animals and studying them requires the use of specialized equipment and specific procedures. This text describes effective methods and equipment for collecting, identifying, rearing, examining, and preserving insects and mites, and explains how to store and care for specimens in collections. It also provides instructions for the construction of many kinds of collecting equipment, traps, rearing cages, and storage units, as well as updated and illustrated keys for identification of the classes of arthropods and the orders of insects. Such information not only aids hobbyists and professionals in preparing insect collections, but it has become essential in documenting and standardizing collections of entomological evidence in forensic as well as pest management sciences. * Over 400 professionally drawn illustrations * Identification keys to find arthropod orders * Comprehensive reading list * Detailed glossary of terms
Download or read book Economic and Ecological Significance of Arthropods in Diversified Ecosystems written by Akshay Kumar Chakravarthy and published by Springer. This book was released on 2016-10-20 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Arthropods are invertebrates that constitute over 90% of the animal kingdom, and their bio-ecology is closely linked with global functioning and survival. Arthropods play an important role in maintaining the health of ecosystems, provide livelihoods and nutrition to human communities, and are important indicators of environmental change. Yet the population trends of several arthropods species show them to be in decline. Arthropods constitute a dominant group with 1.2 million species influencing earth’s biodiversity. Among arthropods, insects are predominant, with ca. 1 million species and having evolved some 350 million years ago. Arthropods are closely associated with living and non-living entities alike, making the ecosystem services they provide crucially important. In order to be effective, plans for the conservation of arthropods and ecosystems should include a mixture of strategies like protecting key habitats and genomic studies to formulate relevant policies for in situ and ex situ conservation. This two-volume book focuses on capturing the essentials of arthropod inventories, biology, and conservation. Further, it seeks to identify the mechanisms by which arthropod populations can be sustained in terrestrial and aquatic ecosystems, and by means of which certain problematic species be managed without producing harmful environmental side-effects. This edited compilation includes chapters contributed by over 80 biologists on a wide range of topics embracing the diversity, distribution, utility and conservation of arthropods and select groups of insect taxa. More importantly, it describes in detail the mechanisms of sustaining arthropod ecosystems, services and populations. It addresses the contribution of modern biological tools such as molecular and genetic techniques regulating gene expression, as well as conventional, indigenous practices in arthropod conservation. The contributors reiterate the importance of documenting and understanding the biology of arthropods from a holistic perspective before addressing conservation issues at large. This book offers a valuable resource for all zoologists, entomologists, ecologists, conservation biologists, policy makers, teachers and students interested in the conservation of biological resources.
Download or read book Chemical Zoology V5 written by Marcel Florkin and published by Elsevier. This book was released on 2012-12-02 with total page 481 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chemical Zoology Volume V Arthropoda Part A presents chemical information on zoological importance of Arthropoda. It is composed of 12 chapters that cover anatomy, feeding, and digestion; carbohydrate, nitrogen, and lipid metabolism; osmoregulation; and growth and development. After briefly dealing with general characteristics, evolution and classification of Arthropoda, the book discusses arthropod nutrition and the nutrients needed for their growth and development. It describes the unique features of the digestive system, as well as secretion, resorption, and production of digestive juices of arthropods and crustaceans. Other chapters deal with the aspects and dynamics of arthropods' carbohydrate, lipid, and nitrogen metabolism. The book also describes the mechanism of osmotic regulation in aquatic arthropods and the role of amino acids in this function in insect hemolyph. The concluding chapters discuss some of the metabolic changes as related to tissue growth and an increase in body size in arthropods. This book is an invaluable resource for zoologists and biochemists.
