Download or read book The Genus Stauroneis in the Arctic and sub Antarctic Regions written by Bart Van de Vijver and published by . This book was released on 2004 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: The diatom genus Stauroneis comprises far more species than actually known. This detailed morphological and taxonomical study of Stauroneis in samples from both the Arctic and (sub-)Antarctic Regions has resulted in the description of 40 new Stauroneis taxa. The 'catch-all' taxoa Stauroneis phoenicenteron, St. anceps and St. obtusa are thoroughly investigated and a lot of new (related) taxa are split off and described. Five taxa are only described provisionally, two from the Antarctic and two from the Arctic Region. It is possible that they represent also new species but more research on other populations should clarify their status. Two species are described in this book from the Mediterranean Sardinia island and Central Europe respectively because they might be confused with the Arctic and/or (sub-)Antarctic taxa.
Download or read book The Diatoms written by John P. Smol and published by Cambridge University Press. This book was released on 2010-09-30 with total page 687 pages. Available in PDF, EPUB and Kindle. Book excerpt: This much revised and expanded edition provides a valuable and detailed summary of the many uses of diatoms in a wide range of applications in the environmental and earth sciences. Particular emphasis is placed on the use of diatoms in analysing ecological problems related to climate change, acidification, eutrophication, and other pollution issues. The chapters are divided into sections for easy reference, with separate sections covering indicators in different aquatic environments. A final section explores diatom use in other fields of study such as forensics, oil and gas exploration, nanotechnology, and archaeology. Sixteen new chapters have been added since the first edition, including introductory chapters on diatom biology and the numerical approaches used by diatomists. The extensive glossary has also been expanded and now includes over 1,000 detailed entries, which will help non-specialists to use the book effectively.
Download or read book Protist Diversity and Geographical Distribution written by W. Foissner and published by Springer Science & Business Media. This book was released on 2009-07-24 with total page 213 pages. Available in PDF, EPUB and Kindle. Book excerpt: Conservation and biodiversity of protists The conservation of biodiversity is not just an issue of plants and vertebrates. It is the scarcely visible invertebrates and myriads of other microscopic organisms that are crucial to the maintenance of ecological processes on which all larger organisms and the composition of the atmosphere ultimately depend. Biodiversity and Conservation endeavours to take an holistic view of biodiversity, and when the opportunity arises to issue collections of papers dealing with too-often neglected groups of organisms. The protists, essentially eukaryotes that cannot be classi?ed in the kingdoms of animals, fungi, or plants, include some of the lea- known groups of organisms on earth. They are generally treated as a separate kingdom, commonly named Protista (or Protoctista) in textbooks, but in reality they are a mixture of organisms with disparate a?nities. Some authors have hypothesized that the numbers of protists are not especially large, and that many have extraordinarily wide distributions. However, the p- ture that unfolds from the latest studies discussed in this issue is di?erent. There are many species with wide ranges, and proportionately more cosmopolitan species than in macroorganism groups, as a result of their long evolutionary histories, but there are also de?nite patterns and geographical restrictions to be found. Further, some protists are linked to host organisms as mutualists or parasites and necessarily con?ned to the distributions of their hosts.
Download or read book Diatom Ecology written by Nora I. Maidana and published by John Wiley & Sons. This book was released on 2024-09-06 with total page 467 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive, unique and up-to-date exploration of diatom ecology spanning from fundamental molecular aspects to the intricate dynamics of metacommunities. In recent years there has been a considerable increase in the amount of research devoted to diatom ecology, with a wide spectrum of approaches. This large amount of information, published in many different journals and books, makes it very difficult to keep up to date, both for the trained researcher and for students. Eduardo A. Morales (d. May 2023) had the original idea to assemble chapters on various subjects within diatom ecology. The questions he posed to potential contributors framed the current book consisting of 12 chapters. Are diatoms suitable tools for ecological restoration? What would be the features that make them reliable in this context? What makes diatoms ecologically successful? In an ecological sense, why is there such variability in diatom reproductive strategies and why are they worth considering? What do new approaches in ecological synthesis provide to diatom ecology, biogeography and metacommunities? Are all diatoms widely spread and each species uniquely characterized by its own, unaltered phenotype? Can we really make any ecological consideration without knowing (with a high degree of certainty) the identity of taxa? Are urban ecosystems important repositories of biodiversity? What are the benefits and the progress in diatom ecology made by the diatom guild perspective? Why, how and when are soil diatoms used in bioindication and what are the benefits of such an approach? Are diatoms bona fide indicators of climate change? Are diatom communities in temporary rivers important for these lotic ecosystems as they are subjected to the effects of climate change? Do diatoms in peatlands behave differently from their terrestrial and aquatic (rivers, lakes, others) counterparts? Audience The book is intended primarily for professionals in the fields of diatom research, algal research (phycology), organismal, population and community ecology, limnology, microbiology, organismal biology, paleoecology and paleolimnology. The book will also serve as a reference for graduate students seeking guidance on terminology, techniques, and current methods in diatom research.
Download or read book Insights into the World of Diatoms From Essentials to Applications written by Prateek Srivastava and published by Springer Nature. This book was released on 2023-03-31 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited book provides a comprehensive and a reliable source of information on all major areas of diatom research. It addresses research advances in the key areas of diatom biology, morphology, systematics, phylogeny and ecology along with their interdisciplinary applications. Diatoms are the world’s most diverse group of algae populating the freshwater and marine ecosystems of the world. They are unicellular, photosynthetic, eukaryotes having ornate silicified cell walls. Diatoms contribute around 25% of annual global carbon fixation, which is more than all of the terrestrial rainforests combined. Diatoms underpin major aquatic food webs and drive global biogeochemical cycles and have several ecological and interdisciplinary applications. This book targets a wide range of audience including researchers, academicians, teachers and students of varied disciplines such as biology, environmental sciences, ecology, evolution, nanotechnology and other related disciplines. It is useful read for beginners as well as advanced researchers.
Download or read book Reconstructing the Tree of Life written by Trevor R. Hodkinson and published by CRC Press. This book was released on 2006-12-26 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: To document the world's diversity of species and reconstruct the tree of life we need to undertake some simple but mountainous tasks. Most importantly, we need to tackle species rich groups. We need to collect, name, and classify them, and then position them on the tree of life. We need to do this systematically across all groups of organisms and b
Download or read book Acta Botanica Hungarica written by and published by . This book was released on 2006 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trends in Antarctic Terrestrial and Limnetic Ecosystems written by D.M. Bergstrom and published by Springer Science & Business Media. This book was released on 2007-06-04 with total page 373 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Antarctic provides a suite of scenarios useful for investigating the range of climate change effects on terrestrial and limnetic biota. The purpose of the book is to provide, based on the most up to date knowledge, a synthesis of the likely effects of climate change on Antarctic terrestrial and limnetic ecosystems and, thereby, to contribute to their management and conservation, based on the information.
Download or read book Occasional Papers of the California Academy of Sciences written by and published by . This book was released on 2009 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diatom Assemblages from Sphagnum Bogs of the World written by Maxim S. Kulikovskiy and published by . This book was released on 2010 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the first in the series of volumes that will be devoted to the Eurasian Sphagnum bog diatoms. Sphagnum bogs are unique ecosystems. The main ecological drivers in these systems are Sphagnum mosses. They originate under organic, acidic conditions with low content of available electrolytes. Diatomological studies of the Sphagnum bogs of Russia and adjacent countries began in the 1950s. However, these papers include the floristic information on only a few dozen smaller bogs. Large-scale floristic, taxonomic and biogeographic investigations have not been conducted so far, although this gap has been reduced by a few recent studies. Diatom assemblages from Sphagnum bog Nur, situated in the northern mountainous region of Mongolia, are subject of the study. Nur is a unique ecosystem in Mongolia because it is the only known large Sphagnum bog throughout this region. There are no earlier studies on the algal flora of this ecosystem. A total of 242 diatom taxa, belonging to 48 genera have been identified from samples taken from different habitats of this bog. Light and scanning electron microscope analyses resulted in the description of one new genus, Boreozonacola, and 18 new species from the genera Pinnularia, Stauroneis, Naviculadicta, Fragilaria, Eunotia, Boreozonacola, Caloneis, Chamaepinnularia, and Neidium. Additionally, 11 new taxonomic combinations are suggested. Species treatments include descriptions, synonymies, size dimensions, and relevant literature. For some species historical information is also provided.
Download or read book Diatoms of North America written by Claudia Zimmermann and published by Gantner Publishing. This book was released on 2010 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2012 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Diatoms of North America written by Dermot Antoniades and published by Gantner Publishing. This book was released on 2008 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to Ellef Ringnes Island, Prince Patrick Islandand Northern Ellesmere Island. From the preface This project was initiated in 1998 with the development of a surface diatomcalibration set for selected regions from the Arctic Islands.Under the study surface sediments, mosses,rock and otheravailable habitats were studied from 91 ponds and lakes.It became clear that the diatoms observed were new or undocumented. Detailed taxonomic studies were done at the Canadian Museum of Nature using SEM generated images andthe extensive Library. A must have for research in the Arctic
Download or read book Tropical Diatoms of South America II written by Ditmar Metzeltin and published by Gantner Publishing. This book was released on 2007 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Current Antarctic Literature written by and published by . This book was released on 1995 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin des s ances written by Académie royale des sciences d'outre-mer and published by . This book was released on 2007 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt:
