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Species diversity and extinction /
Species diversity is an index that incorporates the number of species in an area and also their relative abundance. Since species diversity is central to a large amount of ecological theory, its accurate measurement is key to understanding community structure and dynamics. Consequently, during the c...
| Clasificación: | Libro Electrónico |
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| Otros Autores: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
New York :
Nova Science Publishers, Inc.,
[2010]
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| Colección: | Environmental science, engineering and technology series.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- ""Library of Congress Cataloging-in-Publication Data""; ""Contents""; ""Preface""; ""Mexican Threatened Cacti: Current Status and Strategies for Their Conservation""; ""Abstract""; ""Introduction""; ""Cacti Taxonomy""; ""Cacti Distinctiveness""; ""Traditional Uses of Cacti""; ""Pharmacological and Biological Properties of Cacti""; ""Cacti Origin and Distribution""; ""Current Status of Mexican Cacti""; ""Propagation and Conservation by Conventional Methods""; ""Legal framework""; ""In situ conservation""; ""Ex situ conservation""; ""Cacti propagation""
- ""Biotechnological Approaches for Cacti Propagation and Conservation""""Stage I. Axenic culture establishment""; ""Stage II. Propagule multiplication""; ""(a) Propagation from meristems""; ""(b) Organogenesis""; ""(c) Somatic embryogenesis""; ""Stage III. Shoot growth and rooting""; ""Stage IV. Plant hardening""; ""Secondary Metabolite Production by in Vitro Cacti Cultures""; ""Conclusion""; ""References""; ""Extinction of Cytheroidean Ostracodes (Crustacea) in Shallow-Water around Japan in Relation to Environmental Fluctuations since the Early Pleistocene""; ""Abstract""; ""1. Introduction""
- ""2. General Features of Ostracodes: Taxonomy, Ecology and Morphology""""3: Extinction and Survival of Shallow-Water Species in Japan Sea""; ""3.A. Modern Distribution of Four Assemblages""; ""3.B. Case of Cryophilic Species of Three Families""; ""3.B.1. Habitat conditions of living species""; ""3.B.2. Paleoecology of now-extinct (�Nex�) species""; ""3.B.3. Faunal history of �Nex� species during pleistocene""; ""3.B.4. Reasons for survival of modern species""; ""3.C. Case of an Extinct Species of Loxoconcha""; ""3.D. Case of an Extinct Species of Aurila""
- ""4. Disappearance and Extinction of Inner-Bay Species""""4.A. Pacific Coast""; ""4.B. Japan Sea""; ""5. Possibility of Species Disappearance and Extinction around Japan Near Future""; ""6. Summary and Future Work""; ""7. Conclusion""; ""Acknowledgments""; ""References""; ""New Frontiers in Genome Resource Banking""; ""Abstract""; ""Introduction""; ""Sperm Preservation""; ""Semen Collection and Evaluation""; ""Sperm Cryopreservation""; ""Oocytes Aspiration and Vitrification""; ""Following Is the Protocol That We Use for Oocytes Vitrification""; ""Whole Ovary Freezing""
- ""Freeze Drying Technique""""References""; ""References""; ""References""; ""The Diversity of Cypriniforms throughout Bangladesh: Present Status and Conservation Challenges""; ""Abstract""; ""1. Introduction""; ""2. The Key Waterbodies and the Status""; ""2.1. The Floodplain""; ""2.2. The Rivers""; ""2.3. The Beels""; ""2.3.1. Chalan beel""; ""2.4. The Haors""; ""2.5. The Baors""; ""2.6. The Ponds and Ditches""; ""2.7. The Kaptai Lake""; ""3. Aquatic Fauna of Bangladesh""; ""4. The Cyprinifom Fishes""; ""4.1. Family Psilorhynchidae""; ""4.2. Family Balitoridae""; ""4.3. Family Cobitidae""