The Biology of Desmids PDF Download

Author: Alan J. Brook
Publisher: Univ of California Press
ISBN: 9780520042810
Category : Science
Languages : en
Pages : 294

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Author: Peter F.M. Coesel
Publisher: BRILL
ISBN: 9004277927
Category : Science
Languages : en
Pages : 352

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Algal species and in particular desmids are important indicators of water quality. Because of their preferential occurrence in vulnerable habitats, desmids lend themselves well to figuring in conservation studies. The present flora describes all desmid taxa known from the Netherlands and adjacent lowland areas: over 500 species and more than 150 additional varieties. Because of the predominantly cosmopolitan nature of most species the flora may also be of use outside this geographic region. The enclosed CD-ROM offers general information on desmid biology as well as a selection of species that are discussed in more detail. Ecological data, both on separate species and desmid communities, enable a characterization of the habitat sampled. Volume 1: Desmids of the Lowlands - Mesotaeniaceae and Desmidiaceae of the European Lowlands Volume 2: European Flora of the desmid genera Staurastrum and Staurodesmus

Author: John D. Wehr
Publisher: Elsevier
ISBN: 0123858771
Category : Science
Languages : en
Pages : 1067

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Freshwater Algae of North America: Ecology and Classification, Second Edition is an authoritative and practical treatise on the classification, biodiversity, and ecology of all known genera of freshwater algae from North America. The book provides essential taxonomic and ecological information about one of the most diverse and ubiquitous groups of organisms on earth. This single volume brings together experts on all the groups of algae that occur in fresh waters (also soils, snow, and extreme inland environments). In the decade since the first edition, there has been an explosion of new information on the classification, ecology, and biogeography of many groups of algae, with the use of molecular techniques and renewed interest in biological diversity. Accordingly, this new edition covers updated classification information of most algal groups and the reassignment of many genera and species, as well as new research on harmful algal blooms. - Extensive and complete - Describes every genus of freshwater algae known from North America, with an analytical dichotomous key, descriptions of diagnostic features, and at least one image of every genus. - Full-color images throughout provide superb visual examples of freshwater algae - Updated Environmental Issues and Classifications, including new information on harmful algal blooms (HAB) - Fully revised introductory chapters, including new topics on biodiversity, and taste and odor problems - Updated to reflect the rapid advances in algal classification and taxonomy due to the widespread use of DNA technologies

Author: Peter F.M. Coesel
Publisher: BRILL
ISBN: 9004277919
Category : Science
Languages : en
Pages : 358

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This flora represents the European species of het desmid genera Staurastrum and Staurodesmus and contains reliable identification keys and general information on the morphology, taxonomy, ecology and geographical distribution. An invaluable tool for aquatic ecologists and water quality management. The desmid genera Staurastrum and Staurodesmus are notorious for their confusing taxonomy and problematic species identification. To a large part this is due to a lack of reliable identification manuals. The present flora, dealing with the European species of these genera, aims to meet this need. As well as general information on the morphology and taxonomy of the genera, identification keys to the species are provided. The discussion of each species includes morphological characteristics, ecology and geographical distribution (also beyond Europe). As compared to other desmid genera, a large part of the Staurastrum and Staurodesmus species have a euplanktonic way of life. Reliable identification and knowledge of their ecological demands is most important for the assessment of water quality. Many species have a confined geographical distribution, even within Europe. Shifting distribution patterns of those species might be linked to climate change. Volume 1: Desmids of the Lowlands - Mesotaeniaceae and Desmidiaceae of the European Lowlands Volume 2: European Flora of the desmid genera Staurastrum and Staurodesmus

Author: Edward G. Bellinger
Publisher: John Wiley & Sons
ISBN: 1119964326
Category : Science
Languages : en
Pages : 379

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Freshwater Algae: Identification and Use as Bioindicators provides a comprehensive guide to temperate freshwater algae, with additional information on key species in relation to environmental characteristics and implications for aquatic management. The book uniquely combines practical material on techniques and water quality management with basic algal taxonomy and the role of algae as bioindicators. Freshwater Algae: Identification and Use as Bioindicators is divided into two parts. Part I describes techniques for the sampling, measuring and observation of algae and then looks at the role of algae as bioindicators and the implications for aquatic management. Part II provides the identification of major genera and 250 important species. Well illustrated with numerous original illustrations and photographs, this reference work is essential reading for all practitioners and researchers concerned with assessing and managing the aquatic environment.

Author: Jørgen Kristiansen
Publisher: Springer Science & Business Media
ISBN: 9780792342533
Category : Science
Languages : en
Pages : 176

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This book is based on a workshop on biogeography of freshwater algae held during the Fifth International Phycological Congress in China 1994. A group of outstanding specialists covering widely different approaches to the subject have been brought together, and this collection of their contributions forms a unique volume: there is no other book on the subject. It thus fills an evident gap in the phycological literature, and will be of major interest to researchers and teachers within phycology, limnology, and evolutionary biology. However, it may also be useful in courses for advanced students.

Author: Ольга Анисимова
Publisher: Litres
ISBN: 5044302619
Category : Medical
Languages : en
Pages :

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Основная идея этой книги – показать таксономическое значение топографии клеточной стенки на примере видов из рода Euastrum. В книге приведены результаты изучения рода Euastrum, одного из наиболее разнообразных родов десмидиевых водорослей. В общей сложности более 2000 клеток 45 видов Euastrum были исследованы с помощью сканирующего электронного микроскопа (СЭМ). Богатый видовой состав флоры Европы, большое количество образцов и более чем 10-летние исследования позволили увидеть и проанализировать распространение и взаимосвязь скробикул, бородавок, слизистых пор и традиционных морфологических признаков. Включение в список видов, рельеф оболочки которых еще не изучен, демонстрирует область будущих исследований в этом направлении. Объединение видов в группы в зависимости от наличия скробикул того или иного типа, а также в группы безскробикульных видов, я надеюсь, позволит коллегам в будущем более легко выявлять и описывать новые таксоны, а также обращать внимание на значимые признаки.Во Введении приведено описание строения клетки Euastrum и основных структур, которые будут рассмотрены в систематической части. В Методической части описаны материалы, на основе которых проведено исследование, подробно объяснено, как изготавливать препараты для сканирующего электронного микроскопа, дан аннотированный перечень используемых терминов. В начале Систематической части подробно описан рельеф клеточной стенки, сходства и различия в строении клеток разных видов Euastrum. Впервые более 40 видов были подвергнуты исследованию в СЭМ, кроме того, были обобщены данные по всем существующим в настоящее время Euastrum (74 вида) из Европы. Всего представлено 47 таблиц с фотографиями в СЭМ структур поверхности клеточной стенки. В связи с тем, что исследование клеточных покровов проведено на образцах водорослей, собранных в водоемах России, приведены данные о распространении видов в регионах европейской части России. Распространение видов в Европе (с указанием стран) и в мире (с указанием континентов) приведено в описании таксонов. Список использованной литературы включает основные аннотации исследований видов рода Euastrum в Европе, в том числе публикации, в которых есть микрофотографии СЭМ.После покупки предоставляется дополнительная возможность скачать книгу в формате epub.

Author: R. Jan Stevenson
Publisher: Springer Science & Business Media
ISBN: 1402050704
Category : Science
Languages : en
Pages : 249

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Advances in Algal Biology: A Commemoration of the Work of Rex Lowe was written by students and colleagues of Rex Lowe to acknowledge his esteemed career that included exceptional contributions to research and teaching. Papers in the book cover a variety of topics in algal ecology, focusing on benthic algal ecology in freshwater ecosystems. The studies provide an unusual combination of small-scale experiments and large-scale regional surveys that bridge both basic and applied ecology. Ecologists, limnologists, phycologists, and environmental scientists will find valuable contributions to the development and application of algal research.

Author: W. Foissner
Publisher: Springer Science & Business Media
ISBN: 9048128013
Category : Science
Languages : en
Pages : 213

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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.

Author: Christopher S. Lobban
Publisher: Univ of California Press
ISBN: 9780520045859
Category : Science
Languages : en
Pages : 806

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