[PDF] Nova Hedwigia 33 2 Teil eBook

Author :
Publisher :
Page : 584 pages
File Size : 48,62 MB
Release : 1990
Category : Cryptogams
ISBN :

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Zeitschrift für Krypotgamenkunde.

Author : F. E. Round
Publisher : Cambridge University Press
Page : 766 pages
File Size : 34,24 MB
Release : 1990-05-25
Category : Medical
ISBN : 9780521363181

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This book is an introduction to diatom biology. It emphasizes the cell cycle, sexual reproduction, and ontogeny. The authors have provided a system of classification with many new taxa described at the family level together with 17 new genera.

Author : Jørgen Kristiansen
Publisher : Springer Science & Business Media
Page : 161 pages
File Size : 47,9 MB
Release : 2013-06-29
Category : Science
ISBN : 9401709084

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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 : John D. Wehr
Publisher : Elsevier
Page : 1067 pages
File Size : 38,63 MB
Release : 2015-06-05
Category : Science
ISBN : 0123858771

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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 : Huw I. Griffiths
Publisher : Springer Science & Business Media
Page : 356 pages
File Size : 26,64 MB
Release : 2013-03-19
Category : Science
ISBN : 1402028547

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This is the first attempt to synthesize current understanding of biodiversity in the great European hot spot. A diverse group of international researchers offers perspective on biodiversity at the level of the gene, species and ecosystem, including contributions on temporal change. Biological groups include plants, mammals, spiders and humans, cave-dwelling organisms, fish, aquatic invertebrates and algae.

Author : James A. Entry
Publisher : CRC Press
Page : 498 pages
File Size : 24,46 MB
Release : 2015-03-26
Category : Nature
ISBN : 1498711847

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The first synthesis of current research regarding Everglades microbial community structure and function, this book provides an understanding of the physical and chemical factors affecting the structure of microbial communities, including nutrient effects, sea level rise, and other potential stressors. The book integrates traditional research on alg

Author : K. Duff
Publisher : Springer Science & Business Media
Page : 196 pages
File Size : 49,71 MB
Release : 2013-04-17
Category : Science
ISBN : 9401708096

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Chrysophycean algae are a diverse and often abundant group of primarily freshwater phytoplankton, characterized by the endogenous formation of siliceous cysts or stomatocysts (also called statospores or statocysts). Cyst morphology is highly variable, but believed to be species-specific. Recently, cysts have received considerable attention from phycologists and especially paleoecologists who wish to use these indicators for assessments of environmental change. Nonetheless, attempts at using cysts have often been hampered by taxonomic problems. This Atlas dispels some of the mystery surrounding stomatocysts, facilitating the accurate identification of individual cyst morphotypes, and encouraging other workers to begin using these important indicators. The terminology used to describe cysts is outlined in detail, followed by detailed descriptions of cyst morphotypes, following International Statospore Working Group (ISWG) guidelines, complemented by scanning electron and light micrographs, as well as line illustrations. Any available biogeographical and ecological information is also provided. These descriptions will further accelerate the continued effort to link cyst morphotypes to the algae that produce them. For paleoecologists who wish to include stomatocysts in their studies, researchers working with living chrysophycean algae, and those interested in the morphology and ultrastructure of cyst morphotypes.