Download or read book Thorp and Covich s Freshwater Invertebrates written by D. Christopher Rogers and published by Academic Press. This book was released on 2019-04-02 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thorp and Covich's Freshwater Invertebrates: Keys to Palaearctic Fauna, Fourth Edition, is part of a multivolume series covering inland water invertebrates of the world that began with Vol. I: Ecology and General Biology (2015), then Vol. II (2016) Keys to Nearctic Fauna, and finally in Vol. III (2018) Keys to Neotropical Hexapoda (insects and springtails). It now continues with identification keys for Palearctic invertebrates in Vol. IV. Two other volumes currently in development focus on general invertebrates of the Neotropical/Antarctic, and Australasian Bioregions. Other volumes in the early planning stages include Afrotropical and Oriental/Oceanic Bioregions. All volumes are designed for multiple uses and levels of expertise by professionals in universities, government agencies and private companies, as well as by graduate and undergraduate students.

Download or read book British Carboniferous Malacostraca written by Frederick R. Schram and published by . This book was released on 1979 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sexual Biology and Reproduction in Crustaceans written by Thanumalaya Subramoniam and published by Academic Press. This book was released on 2016-09-27 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sexual Biology and Reproduction in Crustaceans covers crustacean reproduction as it deals with the structural morphology of the gamete-producing primary sex organs, such as the testis and ovary, the formation and maturation of gametes, their fusion during fertilization, and embryonic development that lead to the release of larvae. Constituting a diverse assemblage of animals, crustaceans are best known by their common representatives, such as shrimps, lobsters, and crabs, but also include many more less familiar, but biologically important forms. This work covers the variety of ways in which both male and female gametes are produced by evolving different sexual systems in crustaceans, the range of reproductive systems, and the accordingly, and highly diverse, mechanistic modes of sex determination. In addition, the book features such topics as genetic and environmental determinants in sex determination pattern, variability of mechanisms of fertilization among different species, the origin of different mating systems, the associated mating and brooding behaviors, and the adaptive ability to different environmental conditions with discussion on the evolutionary ecology of social and sexual systems in certain species, which have shown eusocial tendencies, similar to social insects. Marine species occupying diversified ecological niches in tropical and temperate zones reproduce under definitive environmental conditions. Therefore, reproductive ecology of different crustaceans inhabiting different ecological niches also constitutes another important aspect of the work, along with yolk utilization and embryogenesis leading to release of different larval forms, which reflect on their aquatic adaptability. - Forms a valuable source of recent references on the current research in crustacean reproductive physiology - Covers various mating and breeding systems, providing illustrative examples for sexual selection, parental care of developing eggs and embryos, and the evolution of other reproductive behaviors - Features contributions written in the form of review articles, enabling readers to not only gain information in the respective subject, but also help them stimulate ideas in their chosen field of research - Includes a glossary created by the author to define technical terms - Demonstrates the ability of crustacean species to serve as useful model systems for other organisms, to investigate issues related to sexual conflict, mate choice, and sperm competition - Discusses techniques in endocrine research to help researchers in aquaculture develop protocols in the control of reproduction

Download or read book Crustaceans written by Valerio Zupo and published by CRC Press. This book was released on 2022-12-23 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anyone who attempts to study crustaceans soon realizes that there are many science fields involved. As a major subphylum of Arthropods—the largest phylum in the animal kingdom—crustaceans exhibit an extraordinary diversity of taxa, shapes, physiology and styles of life. These invertebrates play key ecological roles in all aquatic environments, while only a few species are adapted to sub-aerial and humid environments. Their evolutionary success is not only due to a wide set of morphological and biological adaptations, but also because of some key features, e.g., their peculiar endocrinology. In addition, crustaceans are characterized by chemical and optical sensors deserving attention because they play important biological roles, linked to chemical ecology issues, and their functioning is impaired by global changes and ocean acidification. Several crustaceans have critical roles in aquatic ecology (e.g., copepods in the plankton, amphipods and isopods in the benthos). Select species are technologically important as "models" for scientific research. Furthermore, aquaculture of several decapod crustaceans is important for providing high protein products to meet the need for nutrition. Understanding the physiology and ecology of crustaceans is important to fulfill these diverse purposes and practical applications. In this book, leading world scientists have pooled their excellence to provide vibrant and expert views of fundamental biological and physiological mechanisms involving crustaceans. To this end, a comprehensive view of crustacean endocrinology and reproductive ecology is provided, along with information about their molecular physiology, adaptations, aquaculture and welfare. In particular, we attempted to span the breadth of their adaptations, presenting behavioral and physiological peculiarities, considering key groups of crustaceans to describe general features and global biodiversity. This book is offered as a tool for students and scientists in various fields of physiological, ecological, biotechnological and aquacultural research.

Download or read book Treatise on Zoology Anatomy Taxonomy Biology The Crustacea Volume 3 written by Jac Forest (†) and published by BRILL. This book was released on 2012-10-02 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: With this edition, access to the texts of the famous Traité de Zoologie is now available to a worldwide readership. Parts 1, 2, and 3A of volume VII, i.e., the Crustacea, were published in French in, respectively, 1994, 1996, and 1999. Brill recognized the importance of these books and arranged for a translation to be made. However, some of the manuscripts dated from the early 1980s and it was clear from the beginning that in many fields of biology a mere translation of the existing text would not suffice. Thus, all chapters have been carefully reviewed, either by the original authors or by newly attracted specialists, and adequate updates have been prepared accordingly. This third volume of The Crustacea, revised and updated from the Traité de Zoologie contains chapters on: - Neuroanatomy - Neurohormones - Embryology - Relative Growth and Allometry The volume concludes with a list of contributors, as well as with both taxonomic and subject indices.

Download or read book Freshwater Fungi written by E. B. Gareth Jones and published by Walter de Gruyter GmbH & Co KG. This book was released on 2014-08-27 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: The available literature on freshwater fungi is limited. Over the subsequent years a considerable volume of scientific papers have appeared scattered throughout numerous journals. There is therefore no recent synthesis of the subject and this is the objective of the proposed book. Freshwater habitats are rich in fungi with some 3,000 described species, most of papers focussing on their identification, substrata they grow on and world distribution. However, these fungi play an important role in the freshwater ecosystem, and are primarily involved in the breakdown of leaf litter contributing food for detritus feeders. Our book will bring together a wide range of acclaimed mycologists to review recent developments on the biology and ecology of freshwater fungi, particularly their molecular phylogeny, biodiversity, causative diseases of freshwater amphibians, fishes and invertebrate animals, decomposition of leaf litter, stream pollution and their potential role in bioremediation.

Download or read book The New Zealand Journal of Science written by and published by . This book was released on 1885 with total page 686 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Zealand Journal of Science written by and published by . This book was released on 1885 with total page 678 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Treatise on Comparative Embryology written by Francis Maitland Balfour and published by . This book was released on 1885 with total page 644 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Works of Francis Maitland Balfour written by Francis Maitland Balfour and published by . This book was released on 1885 with total page 642 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Evolution and Biogeography written by Martin Thiel and published by . This book was released on 2020 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: A thorough review of the evolution and biogeography of crustaceans to determine how crustaceans have been able to evolve in a number of climates and habitats; this volume also examines the ecological and biogeographical implications of that evolutionary process.

Download or read book Arctic Bibliography written by Arctic Institute of North America and published by . This book was released on 1953 with total page 1522 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Biological Role of a Virus written by Christon J. Hurst and published by Springer Nature. This book was released on 2022-02-12 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book answers the question “What is it that viruses do?” by presenting three aspects of viral ecology. The first aspect explains how viruses affect the population diversity and energetics of their host communities. Perhaps the most notable example of this concept is our understanding that primary production within ecosystems often depends upon those viruses which serve as controllers of nutrient recycling, connecting the aquatic and terrestrial realms in ways that can be assessed locally and globally. The second aspect describes genetic partnerships which exist between hosts and their viruses. These include processes termed endogeny and lysogeny by which the host carries at least a partial genomic copy of the virus. Fluidity of these collective genomes is expressed on an evolutionary time scale and the mutual life cycles which they produce represent a forging of shared genomic fate that obligates partnership of the virus and its host. The viral sequences represent a source of potential benefit as well as potential peril for the host and can implement phenotypic changes in the host. Hosts often use those changes as tools. As humans, the most notable example would be that mammals rely upon temporary activation of their endogenous viral genes in order to successfully develop a placenta. The third aspect is defending the health of a host, which relies upon activity in two directions. Hosts often use their captured viral genes to identify and subsequently direct battle against invading viruses. This natural concept has been engineered for combating cancer, is useful for suppressing the detrimental consequences of genetic diseases, and has been developed to create targeted antiviral vaccines. But, the defense has to work in two directions and the host can use other symbiotic microorganisms as protection against its viruses. This book will appeal to a wide readership by providing a broad perspective of viral ecology, and all scientists will find it helpful for gaining a view of fields beyond their specialization.

Download or read book Ancient Hydrocarbon Seeps written by Andrzej Kaim and published by Springer Nature. This book was released on 2022-08-30 with total page 691 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume details the function of hydrocarbon seeps, their evolution over time, the most important seep occurrences and the fauna present in ancient hydrocarbon seeps. While several publications exist that cover modern seeps and vents, fossil seeps only constitute a small component of the literature. As such, many geologists, stratigraphers and paleontologists, as well as undergraduates and graduate students, are not very familiar with ancient hydrocarbon seep deposits and their associated fauna. This text is the first to comprehensively discuss the nature of such animal groups and how to recognize them. In addition to summarizing available knowledge on these topics for specialists in the field, this book offers the background needed to be of use to students as well as the wider community of geologists and paleontologists.

Download or read book Classic Period Mixtequilla Veracruz Mexico written by Barbara L. Stark and published by Institute for Mesoamerican Studies. This book was released on 2001 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This archaeological site report presents new in sights on an important but poorly-studied Mesoamerican culture-the Classic period of the Mexican Gulf Coast. Stark discusses her excavations at several sites in the Mixtequilla region, describes the deposits and artifacts encountered, and provides interpretations of the sites and their significance within a wider context. Her analysis of the ephemeral remains of perishable houses is innovative and contains one of the most sophisticated treatments of site formation processes yet carried out in Latin America. Particularly important is the identification of some of the earliest spindle whorls in Mesoamerica, leading to new views of the importance of cotton textiles in the changing economies of the Late Preclassic and Classic periods. Superb artifact illustrations, detailed descriptions, and an ample use of data tables, make this a valuable reference work. Mesoamericanists will find much of interest in this book, as will readers interested in tropical lowland settlement patterns, household archaeology, and site formation processes.

Download or read book Arthropod Relationships written by Richard A. Fortey and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: The arthropods contain more species than any other animal group, but the evolutionary pathways which led to their current diversity are still an issue of controversy. Arthropod Relationships provides an overview of our current understanding, responding to the new data arising from sequencing DNA, the discovery of new Cambrian fossils as direct evidence of early arthropod history, and developmental genetics. These new areas of research have stimulated a reconsideration of classical morphology and embryology. Arthropod Relationships is the first synthesis of the current debate to emerge: not since the volume edited by Gupta was published in 1979 has the arthropod phylogeny debate been, considered in this depth and breadth. Leaders in the various branches of arthropod biology have contributed to this volume. Chapters focus progressively from the general issues to the specific problems involving particular groups, and thence to a consideration of embryology and genetics. This wide range of disciplines is drawn on to approach an understanding of arthropod relationships, and to provide the most timely account of arthropod phylogeny. This book should be read by evolutionary biologists, palaeontologists, developmental geneticists and invertebrate zoologists. It will have a special interest for post-graduate students working in these fields.

Download or read book The Encyclopedia of Animals written by and published by Univ of California Press. This book was released on 2004 with total page 619 pages. Available in PDF, EPUB and Kindle. Book excerpt: This lavishly illustrated trade reference to mammals, birds, reptiles, amphibians, fishes, and invertebrates features hundreds of glorious photos, masterful illustrations, and informative maps.