Download or read book The evolutionary ecology of reproductive modes in non marine Ostracoda written by David J. Horne and published by . This book was released on 1994 with total page 73 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sex and Parthenogenesis written by Koen Martens and published by . This book was released on 1998 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolutionary Biology and Ecology of Ostracoda written by David J. Horne and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ostracoda (Crustacea) are potentially excellent model organisms for evolutionary studies, because they combine an extensive fossil record with a wide recent distribution and therefore allow studies on both patterns and processes leading to extant diversity. The main scientific domains contributing theories, concepts, and data to evolutionary biology are morphology (including ontogeny), palaeontology, genetics, and ecology, and to all of these aspects ostracods can contribute. This is clearly illustrated by the fifteen papers presented under Theme 3 of the 13th International Symposium on Ostracoda (Chatham, UK) in 1997 which are grouped in the present proceedings, one of three volumes resulting from this meeting. The contributions deal with the evolution of both extant and fossil forms (including most of the Phanaerozoic), ecology of both marine and freshwater taxa, and (developmental) morphology of both soft parts and valves. Although the canvas is wide, each paper clearly shows how studies on Ostracoda can be relevant to general theory on evolutionary biology and ecology.
Download or read book Lost Sex written by Isa Schön and published by Springer Science & Business Media. This book was released on 2009-09-22 with total page 617 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sex is the queen of problems in evolutionary biology. Generations of researchers have investigated one of the last remaining evolutionary paradoxes: why sex exists at all. Given that sexual reproduction is costly from an evolutionary point of view, one could wonder why not all animals and plants reproduce asexually. Dozens of contemporary hypotheses attempt to explain the prevalence of sex and its advantages and predict the early extinction of fully asexual lineages. The major theme of this book is: what is the fate of animal and plant groups in which sex is lost? Initial chapters discuss theory behind asexual life: what major disadvantages do asexual groups have to face, what are the genetic and ecological consequences and what does this theory predict for more applied aspects of asexual life, for example in agricultural pests, diseases as well as in cultural crops such as grapes. Cases studies in many animals (focusing on both invertebrates and vertebrates) and plants reveal parallel, but also singularly novel adaptations to the absence of meiosis and syngamy. And last but not least, are asexuals really doomed to early extinction or do genuine ancient asexuals exist? This book assembles contributions from the most important research groups dealing with asexual evolution in eukaryotes. It is a milestone in research on parthenogenesis and will be useful to undergraduate as well as graduate students and to senior researchers in all fields of evolutionary biology, as the paradox of sex remains its queen of problems.
Download or read book Reproductive Biology written by Rickey Cothran and published by Oxford University Press. This book was released on 2020-01-22 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the sixth volume of a ten-volume series on The Natural History of the Crustacea. The volume synthesizes in nineteen chapters our current understanding of diverse topics in crustacean reproductive biology. In the first part of this book, the chapters address allocation strategies to reproduction, gamete production, brooding behavior, and other components of parental care in crustaceans. The second part of the volume centers on sexual systems in crustaceans. The third section of the volume covers crustacean mating systems and sexual selection. Reproductive Biology ends with three chapters covering diverse topics including reproductive rhythms, crustacean personality research, and record breaking crustaceans with respect to reproductive characters.
Download or read book The Natural History of the Crustacea Reproductive Biology written by Rickey Cothran and published by Oxford University Press, USA. This book was released on 2020-04-24 with total page 609 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the sixth volume of a ten-volume series on The Natural History of the Crustacea. The volume synthesizes in nineteen chapters our current understanding of diverse topics in crustacean reproductive biology. In the first part of this book, the chapters address allocation strategies to reproduction, gamete production, brooding behavior, and other components of parental care in crustaceans. The second part of the volume centers on sexual systems in crustaceans. The third section of the volume covers crustacean mating systems and sexual selection. Reproductive Biology ends with three chapters covering diverse topics including reproductive rhythms, crustacean personality research, and record breaking crustaceans with respect to reproductive characters.
Download or read book Evolution and Phylogeny of Pancrustacea written by Frederick R. Schram and published by Oxford University Press. This book was released on 2021 with total page 873 pages. Available in PDF, EPUB and Kindle. Book excerpt: "As a young and impetuous gradate student, I thought that sorting out the phylogeny of crustaceans would simply take but a little time and concerted effort to eventually reveal the truth. Everyone could then agree and further research would proceed apace. How naïve I was. First of all, I had never heard of Kurt Gödel's incompleteness theorems and hence the impossibility of achieving such an end. But even so, what progress we might have made turned out to take longer than anyone could have imagined, and the effort would be immense involving many people and a number of laboratories-and that task still continues. What no one could foresee in the 1960s was that the focus of everyone's attentions would completely transform. Traditional pure anatomy would be augmented with more sophisticated developmental genetic work. Concurrent with that effort molecular sequencing would become a remarkably effective tool. And with these new sources of data, the concept of "crustaceans" would yield to a new construct-Pancrustacea-within which the arthropods that we referred to by the name of "Crustacea" became a series of monophyletic smaller groups that mark a paraphyletic transition from a mandibulate ancestor all the way up to a crown group that few in the 1960s expected-Hexapoda emerged within the pancrustaceans"--
Download or read book Ostracoda as Proxies for Quaternary Climate Change written by and published by Newnes. This book was released on 2012-12-31 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ostracod crustaceans, common microfossils in marine and freshwater sedimentary records, supply evidence of past climatic conditions via indicator species, transfer function and mutual climatic range approaches as well as the trace element and stable isotope geochemistry of their shells. As methods of using ostracods as Quaternary palaeoclimate proxies have developed, so too has a critical awareness of their complexities, potential and limitations. This book combines up-to-date reviews (covering previous work and summarising the state of the art) with presentations of new, cutting-edge science (data and interpretations as well as methodological developments) to form a major reference work that will constitute a durable bench-mark in the science of Ostracoda and Quaternary climate change. In-depth and focused treatment of palaeoclimate applications Provides durable benchmark and guide for all future work on ostracods Presents new, cutting-edge science
Download or read book Recent Freshwater Ostracods of the World written by Ivana Karanovic and published by Springer Science & Business Media. This book was released on 2012-01-05 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: Their story began 500 million years ago, but we only started to get to know them in 1746, when Linné described the first ostracod species. Vividly portraying the freshwater ostracods, this comprehensive reference work gathers the knowledge gained during some 250 years, but which to date has remained scattered throughout the literature. It starts with an introduction to the class Ostracoda with a special focus on freshwater ostracods and highlights practical methods in their study. The systematic part includes an introduction to all families; identification keys for all subfamilies, genera and species; diagnoses for each subfamily and genus; and lists of synonyms and distribution of species. The text is richly illustrated with distribution maps, line drawings of key generic characteristics, and numerous SEM photographs. Serving as an excellent starting point for all further research on freshwater ostracods, it can be widely used not only by ostracodologists, but also by crustaceologists, evolutionists and ecologists.
Download or read book Lake Baikal written by K. Minoura and published by Elsevier. This book was released on 2000-12-08 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lake Baikal is the oldest lake and largest freshwater reservoir in the world. As a result of its exceptionally long geological history, the lake has been a theatre of evolution and speciation of organisms, and it currently harbors more species than any other lake in the world. Based on its unique nature, Lake Baikal was recently designated a World Heritage site and is regarded as a hotspot for evolution, speciation, and biodiversity. With its tremendously peculiar biota, Lake Baikal is now awaiting modern analytical approaches to the profound problems of speciation and evolution. In late autumn 1998 a symposium was held in Japan with the theme "Lake Baikal: A mirror in time and space for understanding global change processes" to bring together scientists from different disciplines who are studying Lake Baikal. Three international scientific associations: The BICER (Baikal International Center for Ecological Research), BDP (Baikal Drilling Project), and DIWPA (Diversitas Western Pacific and Asia) were involved in the organisation. This book contains a selection of papers presented at this symposium. They are interdisciplinary in nature and bring together results from geology, paleontology, chemistry, biology, limnology and physics.
Download or read book The Recent and Fossil meet Kempf Database Ostracoda written by Finn Viehberg and published by BRILL. This book was released on 2015-01-08 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Festschrift Eugen Karl Kempf is a proceedings volume of the 15th International German Ostracodologists’ Meeting which was held October 11th to 14th, 2012 by the Institute of Geology and Mineralogy of the University of Cologne. The selected contributions cover a broad range of biological and palaeontological topics that rely on sound taxonomy and serve as a tribute to the Kempf Database of Ostracoda including a biography on Eugen Karl Kempf. In detail, the scientific contributions are covering freshwater and marine genera/species and the parasitic family Entocytherids. Revisions of genera and descriptions of new species are one focus, but also new studies on biogeography, ecology and morphology add to the value of the proceeding. Contributors are: Anja Adler, Qing-Chao Chen, Dan L. Danielopol, Laurent Decrouy, Martin Gross, Simon Hofmann, Dietmar Keyser, Khai-Zhi Li, Renate Matzke-Karasz, Claude Meisch, Francesc Mesquita-Joanes, Alexandre Mestre, Munef Mohammed, Juan S. Monrós, Nataša Mori, Christina Nagler, Tadeusz Namiotko, Werner E. Piller, Burkhard Scharf, Torsten W. Vennemann, Finn A. Viehberg, Claudia Wrozyna, Jian-Quian Yin, Dayou Zhai, Wanhe Zhao
Download or read book Tracking Environmental Change Using Lake Sediments written by John P. Smol and published by Springer Science & Business Media. This book was released on 2006-04-11 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Paleolimnology is a rapidly developing science that is now being used to study a suite of environmental and ecological problems. This volume is the fourth handbook in the Developments in Paleoenvironmental Research book series. The first volume (Last & Smol, 2001a) examined the acquisition and archiving of sediment cores, chronological techniques, and large-scale basin analysis methods. Volume 2 (Last & Smol, 2001b) focused on physical and chemical methods. Volume 3 (Smol et al. , 2001), along with this book, summarize the many biological methods and techniques that are available to study long-term environmental changeusing information preserved in sedimentary profiles. A subsequent volume (Birks et al. , in preparation) will deal with statistical and data handling procedures. It is our intent that these books will provide sufficient detail and breadth to be useful handbooks for both seasoned practitioners as well as newcomers to the area of paleolimnology. These books will also hopefully be useful to non-paleolimnologists (e. g. , limnologists, archeologists, palynologists, geographers, geologists, etc. ) who continue to hear and read about pal- limnology, but have little chance to explore the vast and sometimes difficult to access journal-based reference material for this rapidly expanding field. Although the chapters in these volumes target mainly lacustrine settings, many of the techniques described can also be readily applied to fluvial, glacial, marine, estuarine, and peatland environments. This current volume focuses on zoological indicators preserved in lake sediments, whilst Volume 3 focused on terrestrial, algal, and siliceous indicators.
Download or read book Aquatic Biodiversity written by Koen Martens and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this age of increased fundamental and applied research on biodiversity, no single volume was as yet devoted to the various temporal and spatial aspects of aquatic biodiversity. The present book is published in honour of Professor Henri Dumont (Ghent, Belgium) at the occasion of his retirement as Editor-in-Chief of Hydrobiologia. The volume presents a selection of contributions on aquatic biodiversity, written by colleagues from the editorial board, fellow editors of aquatic journals and former students and collaborators. Contributions deal with a wide spectrum of topics related to aquatic biodiversity and cover fields such as actual- and palaeolimnology, taxonomy, and fundamental and applied limnology. Even reconnaissance chapters on management and cultural impact of water bodies are included. The book combines state-of-the-art contributions in aquatic sciences.
Download or read book Thorp and Covich s Freshwater Invertebrates written by James H. Thorp and published by Academic Press. This book was released on 2019-03-31 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. Provides identification keys for inland water (fresh to saline) invertebrates of the Palearctic Zoogeographic Region, from Iceland to Russia, and from the northern Pole region to Saharan Africa in the west, through the Middle East, and to the central China and Japan in the east Presents identification keys for aquatic invertebrates to the genus or species level for many groups and to family for Hexapoda, with the keys progressing from higher to lower taxonomic levels Includes a general introduction and sections on limitations, terminology and morphology, material preparation and preservation and references
Download or read book Candoninae Ostracoda from the Pilbara Region in Western Australia written by Ivana Karanovic and published by BRILL. This book was released on 2007 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: The monograph describes the Candoninae fauna of the Pilbara region, containing 84 species and 12 genera, of which 83 species and 11 genera are endemic. This ancient fauna holds one of the most important clues about the evolution of the subfamily.
Download or read book Freshwater Animal Diversity Assessment written by E.V. Balian and published by Springer Science & Business Media. This book was released on 2008-04-27 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive study of species- and genus-level diversity and chorology of the global freshwater fauna to date. It gives a state of the art assessment of the diversity and distribution of Metazoa in the continental waters of the world.
Download or read book Meiobenthology written by Olav Giere and published by Springer Science & Business Media. This book was released on 2008-11-01 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meiobenthology is the science of the tiny animals that live in huge numbers in all aquatic sediments. This fully revised and enlarged second edition emphasizes new discoveries and developments in this field. Major progress has been made in three general areas: - Systematics, diversity and distribution, - Ecology, food webs, and energy flow, - Environmental aspects, including studies of anthropogenic impacts. The meiobenthos of polar and tropical regions, deep-sea bottoms and hydrothermal vents are now studied in more detail. The high number of species found to survive under such extreme conditions puts them at the forefront of biodiversity studies. Molecular screening methods enable large numbers to be analyzed upon applying reasonable effort. The aim of this book is to synthesize these modern scientific achievements such that meiobenthology can play a key role in aquatic research and in assessing the health of our environment.
