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Identification Guide Of Freshwater Macroinvertebrates Of Spain

Author: Javier Oscoz
Publisher: Springer Science & Business Media
ISBN: 9789400715547
Size: 35.72 MB
Format: PDF, Mobi
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As a result of the European Commission’s concern for the status of continental waters, and as a clear reflection of the notion of water as heritage to be conserved, in the year 2000 the Water Framework Directive (2000/60/CE) was enacted, its goal being to establish a framework to protect water and the different aquatic ecosystems by requiring the Member States to achieve a good ecological status in all their waters by 2015. Like all ecosystems, freshwater ecosystems undergo physical, chemical and energy-related changes, both of natural and anthropogenic origin. These disturbances affect the organisms living in them and those who utilize their resources. Therefore, evaluating these changes has become a very important task in order to better understand aquatic systems. The study and analysis of the ecological status of these ecosystems in relation to their conservation status and water quality is thus a fundamental tool for a more efficient and rational management of their resources, that is, a management that does not threaten the ecosystem. The present guide for the identification of Spanish freshwater macroinvertebrates aims to facilitate the job of those who go to great lengths to identify them in order to then determine biotic indices. It is not the aim of this book to serve as a zoological treaty, nor does it claim to add new information on the biology or the ecology of the taxa covered. This book is, simply, a working tool explicitly designed to facilitate the identification of the Spanish macroinvertebrates and the subsequent computing of biotic indices.

Ecology And Classification Of North American Freshwater Invertebrates

Author: James H. Thorp
Publisher: Academic Press
ISBN: 0126906475
Size: 76.95 MB
Format: PDF, ePub, Docs
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The First Edition of Ecology and Classification of North American Freshwater Invertebrates has been immensely popular with students and researchers interested in freshwater biology and ecology, limnology, environmental science, invertebrate zoology, and related fields. The First Edition has been widely used as a textbook and this Second Edition should continue to serve students in advanced classes. The Second Edition features expanded and updated chapters, especially with respect to the cited references and the classification of North American freshwater invertebrates. New chapters or substantially revised chapters include those on freshwater ecosystems, snails, aquatic spiders, aquatic insects, and crustaceans. * Most up-to-date and informative text of its kind * Written by experts in the ecology of various invertebrate groups, coverage emphasizes ecological information within a current taxonomic framework * Each chapter contains both morphological and taxonomic information, including keys to North American taxa (usually to the generic level) as well as bibliographic information and a list of further readings * The text is geared toward researchers and advanced undergraduate and graduate students

Atlas Zur Biologie Der Bodenarthropoden

Author: Gerhard Eisenbeis
Publisher: Springer-Verlag
ISBN: 3642393926
Size: 78.69 MB
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Dieser Atlas bietet einen exemplarischen Einblick in das bizarre Reich der bodenbewohnenden Arthropoden. In der vergleichenden Darstellung von brillanten rasterelektronenmikroskopischen Abbildungen mit außergewöhnlich lebensnahen Zeichnungen wird offenbar, dass hinter der Formenmannigfaltigkeit dieser Tiere physiologische Mechanismen für ökologische Anpassungen an das differenzierte Leben im Boden stehen. Die Bedeutung der Arthropoden als Konsumenten am Abbau des pflanzlichen Bestandsabfalls und am Stoffkreislauf im Boden wird besonders hervorgehoben. Dieses Buch entstand aus der Begeisterung für die Vielfalt der Bodenarthropoden und aus der Sorge um einen bedrohten Lebensraum, dem wir mehr Beachtung schenken sollten, als ihn nur «mit Füßen zu treten».

Aquatic Oligochaete Biology Viii

Author: Pilar Rodriguez
Publisher: Springer Science & Business Media
ISBN: 9401005974
Size: 23.53 MB
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This book contains 26 contributions dealing with the biology of aquatic oligochaetes and covers a wide range of topics including taxonomy, morphology, ultrastructure, embryology, reproduction, feeding biology, ecotoxicity, community studies, and species distribution. Descriptions of new taxa in tropical areas, including Amazonian forest soils, as well as overviews on the biodiversity of aquatic oligochaetes in Australia and European groundwaters, are presented. New morphological characteristics in both marine and freshwater species are described and interpreted. Laboratory studies contribute to the knowledge of oligochaete feeding biology and reproduction. The use of aquatic oligochaetes in ecological risk assessment is analysed in detail, and standardised experimental designs for studies on bioaccumulation and pollutant transfer by food are included. Finally, a number of papers present the effects of oliogochaetes on the performance of an activated sludge plant, and multivariate approaches to the spatial and/or temporal distribution and composition of oligochaete communities in many different areas of the world, from the scale of a river to the scale of the microhabitat. The broad scope of this volume is a reflection of recent rends, not only in oligochaete research, but also in general applied biological studies.

Methods To Study Litter Decomposition

Author: Manuel A.S. Graça
Publisher: Springer Science & Business Media
ISBN: 9781402065682
Size: 40.91 MB
Format: PDF
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Decomposition of organic matter is a major ecosystem process involving an array of different organisms, including bacteria, fungi and invertebrates. The main objective of this book is to provide students and laboratory instructors at universities and professional ecologists with a broad range of established methods to study plant litter decomposition. Detailed protocols for direct use in the field or laboratory are presented in an easy to follow step-by-step format. A short introduction to each protocol reviews the ecological significance and principles of the technique and points to key references. Although most methods are described for freshwater ecosystems, many will work equally well in the presented or slightly modified form for studies in marine and terrestrial environments.