Acoelomate And Pseudocoelomate Metazoans
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| Author | : Arthur C. Giese |
| Publisher | : Elsevier |
| Total Pages | : 559 |
| Release | : 2013-09-17 |
| Genre | : Science |
| ISBN | : 1483260550 |
Reproduction of Marine Invertebrates, Volume I: Acoelomate and Pseudocoelomate Metazoans is a collection of papers that deals with the evolution of reproductive mechanisms and behavior in marine invertebrates. This collection starts with terminologies and basic events in marine invertebrate reproduction, including the method of estimating sexual reproductive activity, as well as the timing and patterns involved. The book notes that temperatures, salinities, or food availability should be favorable when the young are produced and when they are developing. One paper shows that the reproductive rhythm is dynamic and in some species is latitude-dependent. Other papers discuss the reproductive cycles of different marine invertebrates such as the Porifera, Cnidaria, Nemertinea, and Nematoda. These papers include topics on asexual reproduction, regeneration, sexual reproduction, and development, and then explain in detail the development of certain invertebrates from their kinorhynchs state (embryonic), to the molting stages, juvenile stages, then to adulthood. This book can be useful for marine biologists, marine ecologists, and students involved in marine biological and physical sciences.
| Author | : T. J. Pandian |
| Publisher | : CRC Press |
| Total Pages | : 346 |
| Release | : 2021-09-23 |
| Genre | : Nature |
| ISBN | : 1000405605 |
This book represents the first attempt to quantify environmental factors and life history traits that accelerate or decelerate species diversity in animals. About 15%, 8% and 77% of species are distributed in marine (70% of earth’s surface), freshwater (terra firma fosters more diversity. The harsh hadal, desert and elevated montane habitats restrict diversity to 0.5-4.2%. Costing more time and energy, osmotrophic and suspension modes of food acquisition limit diversity to Selfing hermaphrodites (0.9%), parthenogens ( Incidence of heterogamety is four-times more in males than in females. Hence, evolution is more a male-driven process. Egg size is determined by environmental factors, but lecithality is genetically fixed. In poikilotherms, sex is also determined by gene(s), but differentiation by environmental factors. The extra-ovarian vitellogenesis (> 96%), spermatozoan (81%) rather than spermatophore mechanism of sperm transfer, promiscuity and polygamy over monogamy, iteroparity (99.6%) over semelparity and internal fertilization (84%) are preferred, as they accelerate diversity. Body size and egg size determine fecundity. Indirect life cycle (82%) and incorporation of feeding larval stages accelerate diversity. Brooding and viviparity (6.4%) decelerate it. Parasitism extends life span and liberates fecundity from eutelism. Evolution is an ongoing process, and speciation and extinction are its unavoidable by-products. The in-built conservation mechanism of reviving life after a sleeping duration has been reduced from a few million years in microbial spores to a few thousand years in plant seeds and a few hundred years in dormant eggs in animals. Hence, animal conservation requires priority. The existence of temperature-resistant/insensitive individuals, strains and species shall flourish during the ongoing global warming and earth shall continue with such burgeoning species, hopefully inclusive of man.
| Author | : Roger Neville Hughes |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 354 |
| Release | : 1989-10-31 |
| Genre | : Science |
| ISBN | : 9780412331305 |
Clonal animals, that is those that are genetically identical, are of great importance in biology. The supposed evolutionary advantages of sexual versus asexual reproduction are one of the central paradoxes of current evolutionary theory. The evolved strategy of asexual reproduction includes a large number of diverse species in many different groups, for example aphids, guppies, planktonic rotifers and others.
| Author | : Arthur Giese |
| Publisher | : Elsevier |
| Total Pages | : 359 |
| Release | : 2012-12-02 |
| Genre | : Science |
| ISBN | : 0323154352 |
Reproduction of Marine Invertebrates, Volume II: Entoprocts and Lesser Coelomates focuses on the reproduction of smaller groups of marine metazoans. It is organized into nine chapters; each chapter is devoted to a specific marine metazoan. The asexual and sexual reproduction and developmental stages of entoprocta, tardigrada, priapulida, sipuncula, pogonophora, chaetognatha, hemichordata, tunicata, and cephalochordate are discussed. This book is ideal for marine invertebrate researchers, scientists, and reproduction experts.
| Author | : Arthur Giese |
| Publisher | : Elsevier |
| Total Pages | : 358 |
| Release | : 2012-12-02 |
| Genre | : Science |
| ISBN | : 0323154360 |
Reproduction of Marine Invertebrates, Volume III: Annelids and Echiurans illustrates the importance of annelids and echiurans in the evolution of reproductive mechanisms and in the ecology of the sea. It discusses the asexual reproduction, sexual reproduction capacity, and developmental stages of specific annelids, such as polychaeta and clitellata, and of echiurans. The annelids appear to be midway forms in the evolutionary progression of the metazoans. The echiurans, with close affinities to the annelids, are organisms that have become increasingly important for researches in developmental biology. The book will be helpful to marine scientists and biologists, reproduction researchers, and developmental biologists.
| Author | : Arthur Giese |
| Publisher | : Elsevier |
| Total Pages | : 388 |
| Release | : 2012-12-02 |
| Genre | : Technology & Engineering |
| ISBN | : 0323152708 |
Reproduction of Marine Invertebrates Volume V, Molluscs: Pelecypods and Lesser Classes presents valuable insights on the early evolution of molluscan reproductive biology. It discusses the asexual reproduction, sexual reproduction capacity, and developmental stages of pelecypods and the remaining smaller classes, including aplacophora, polyplacophora, and monoplacophora. One chapter in this volume provides a broad overview of the knowledge and problems on oyster reproductive biology. This book is ideal for marine biologists and researchers, reproductive biologists, and developmental biologists.
| Author | : Arthur Giese |
| Publisher | : Elsevier |
| Total Pages | : 382 |
| Release | : 2012-12-02 |
| Genre | : Science |
| ISBN | : 0323153054 |
Reproduction of Marine Invetebrates, Volume IV Molluscs: Gastropods and Cephalopods describes the wide range of structural complexity and diverse modes of reproduction of gastropods and cephalopods. Each chapter discusses the asexual reproduction, sexual reproduction capacity, and developmental stages of different group of gastropods and cephalopods, including prosobranchia, opisthobranchia, pulmonata, nautiloidea, decapoda, and octopoda. Gastropods are among the most conspicuous sea animals, and species of limpets, snails, and slugs are found in all marine habitats. Cephalopods are active and important marine predators, ranging from archaic nautiloids to more recent pelagic decapods and benthic octopods, which are often considered to be one of the apexes of invertebrate evolution. They are all gonochoric and reproduce only by sexual means. All have intricate courtship behavior and derived developmental patterns. Marine biologists and researchers, scientists, and developmental biologists will find this book invaluable.
| Author | : Diane Schmidt |
| Publisher | : Bloomsbury Publishing USA |
| Total Pages | : 364 |
| Release | : 2003-11-30 |
| Genre | : Language Arts & Disciplines |
| ISBN | : 0313058989 |
Animals have been studied for centuries. But what are the most important and relevant reference and information sources in the zoological sciences? This work is a comprehensive, thoroughly annotated directory filled with hundreds of esteemed resources published in the field of zoology, including indexes, abstracts, bibliographies, journals, biographies and histories, dictionaries and encyclopedias, textbooks, checklists and classification schemes, handbooks and field guides, associations, and Web sites. A complete revision of the award-winning Guide to the Zoological Literature: The Animal Kingdom (1994), this new title includes extensive, up-to-date coverage of invertebrates, arthropods, vertebrates, fishes, amphibians and reptiles, birds, and mammals. In addition, the work features a detailed introduction by the author, as well as thorough subject, title, and author indexes. Students and researchers can now quickly and easily pinpoint works in their field of study. The book is of equal importance to LIS students specializing in science or biology librarianship, as it provides a comprehensive, straight-forward overview of zoological information sources. An essential addition to the core reference collection of public and academic libraries!
| Author | : Andrew (Andrey N.) Ostrovsky |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 387 |
| Release | : 2013-12-16 |
| Genre | : Science |
| ISBN | : 9400771460 |
Three major aspects that distinguish this book are that (1) it contains the most detailed analysis of the sexual reproduction (oogenesis, fertilization and embryonic incubation) in a particular phylum of the aquatic invertebrates (Bryozoa) ever made; this analysis is based on an exhaustive review of the literature on that topic published over the last 260 years, as well as extensive original histological, anatomical and morphological data obtained during studies of both extant and extinct species; (2) this broad analysis has made it possible to reconstruct the major patterns, stages and trends in the evolution of sexual reproduction in various bryozoan clades, showing numerous examples of parallelisms during transitions from broadcasting to embryonic incubation, from planktotrophic to non-feeding larvae and from lecithotrophy to placentation; corresponding shifts in oogenesis, fertilization and embryonic development are discussed in detail; and (3) the key evolutionary novelties acquired by Bryozoa are compared with similar innovations that have evolved in other groups of marine invertebrates, showing the general trends in the evolution of their sexual reproduction. Ecological background of these innovations is considered too. Altogether these aspects make the monograph an “Encyclopedia of bryozoan sexual reproduction,” offering an integral picture of the evolution of this complex phenomenon.
| Author | : Kazuo Inaba |
| Publisher | : Springer Nature |
| Total Pages | : 367 |
| Release | : 2020-05-04 |
| Genre | : Science |
| ISBN | : 9811513260 |
This book gives an overview of the diverse marine fauna and flora of Japan and includes practical guides for investigating the biology and ecology of marine organisms. Introducing marine training courses offered at a range of Japanese universities, this is the first English textbook intended for marine biology instructors and students in Japan. It provides essential information on experimental procedures for the major areas of marine biology, including cell and developmental biology, physiology, ecology and environmental sciences, and as such is a valuable resource for those in Asian countries that share a similar flora and fauna. It also appeals to visitors interested in attending Japanese marine courses from countries around the world.
