The Zebra Mussel In Europe

Autore: Gerard van der Velde
Editore:
ISBN: 9789057821899
Grandezza: 79,63 MB
Formato: PDF, ePub, Docs
Vista: 6429
Download Read Online


The Biology Of Gobies

Autore: Robert Patzner
Editore: CRC Press
ISBN: 1439862338
Grandezza: 48,31 MB
Formato: PDF
Vista: 8216
Download Read Online

Among all vertebrates, gobies are second in diversity only to the teleost family Cyprinidae. The Gobiidae consists of more than 200 genera and nearly 2,000 species and make up the largest family of marine fishes. Gobies account for as much as 50% of the energy flow in coral reef communities. Their small size, ability to adapt to numerous ecological niches and to be bred in aquaria has led to numerous studies both in the field and laboratory. Gobies are found from above the high tide line to depths of over 1,100 m. Some species are found only within caves, others deep inside sponges, and some others climb waterfalls to return to their native streams. They vary reproductively from gonochoric to hermaphrodite, monogamy to polygyny and promiscuity, some have short life spans and reproduce only once while others have longer life spans reproducing one or more times per year. The Biology of Gobies written by over 30 experts from 15 countries summarizes what is known about the systematics, ecology, zoogeography, and general biology of the Gobiiformes. This foundation will provide the basic information necessary for future studies.

Desert Truffles

Autore: Varda Kagan-Zur
Editore: Springer Science & Business Media
ISBN: 3642400965
Grandezza: 12,21 MB
Formato: PDF, ePub, Docs
Vista: 1343
Download Read Online

Desert truffles are found in every known desert, irrespective of the habitat – cool or hot, loamy or acidic, sandy or heavy soil – the only common condition seems to be a limited supply of water. In contrast to ‘true’ truffles, desert truffles have evolved over time in different families, mainly within the order Pezizales. While in some arid areas, desert truffles have been traditionally used as food, in most regions interest has only recently been increasing, and truffles are now treasured for their nutritional value, as an income source and for research. This volume gives a comprehensive overview of the phylogeny, biology, mycorrhizal association, and distribution of desert truffles, their use, biochemical and medicinal properties, as well as their domestication and cultivation.

Lagomorph Biology

Autore: Paulo C. Alves
Editore: Springer Science & Business Media
ISBN: 354072446X
Grandezza: 58,30 MB
Formato: PDF
Vista: 7597
Download Read Online

This is the first book to cover all aspects of Lagomorph biology. Lagomorphs are a mammalian order which includes rabbits, hares and pikas. They are distributed throughout the world and are of both scientific and public interest as they are classified between endangered and pest species. In addition, some have a high economic value as important game species. In the last few decades, a huge amount of information has been made available to the scientific community that has resulted in remarkable advances on all aspects of Lagomorph biology.

Atlante Degli Anfibi E Dei Rettili D Italia

Autore: Roberto Sindaco
Editore: Edizioni Polistampa
ISBN: 9788883049415
Grandezza: 43,50 MB
Formato: PDF, ePub
Vista: 6503
Download Read Online

The Atlas of Italian Amphibians and Reptiles presents the distribution, ecology and conservation status of the 37 species of amphibians and the 50 species of reptiles found in Italy. A 10x10 km UTM grid map is supplied for each species, on the basis of more than 70.000 records contributed by 900 collaborators during the Societas Herpetologica Italica survey project, started in 1994. Entries, illustrated with photos, are subdivided into the following headings: taxonomy, general distribution, comments on the distribution map, habitat, altitudinal distribution, annual activity cycle, reproduction and status of the Italian populations. General sections on biogeography, history of herpetology in Italy, paleoherpetology and herpetological fauna of the small Italian islands are also included. Italian and English text.

The Mollusks

Autore: Charles F. Sturm
Editore: Universal-Publishers
ISBN: 1581129300
Grandezza: 78,71 MB
Formato: PDF
Vista: 3924
Download Read Online

Mollusks have been important to humans since our earliest days. Initially, when humans were primarily interested in what they could eat or use, mollusks were important as food, ornaments, and materials for tools. Over the centuries, as human knowledge branched out and individuals started to study the world around them, mollusks were important subjects for learning how things worked. In this volume, the editors and contributors have brought together a broad range of topics within the field of malacology. It is our expectation that these topics will be of interest and use to amateur and professional malacologists.

Harvesting The Biosphere

Autore: Vaclav Smil
Editore: MIT Press
ISBN: 026201856X
Grandezza: 22,55 MB
Formato: PDF, Kindle
Vista: 8357
Download Read Online

The biosphere -- the Earth's thin layer of life -- dates from nearly four billion years ago, when the first simple organisms appeared. Many species have exerted enormous influence on the biosphere's character and productivity, but none has transformed the Earth in so many ways and on such a scale as Homo sapiens. In Harvesting the Biosphere, Vaclav Smil offers an interdisciplinary and quantitative account of human claims on the biosphere's stores of living matter, from prehistory to the present day. Smil examines all harvests -- from prehistoric man's hunting of megafauna to modern crop production -- and all uses of harvested biomass, including energy, food, and raw materials. Without harvesting of the biomass, Smil points out, there would be no story of human evolution and advancing civilization; but at the same time, the increasing extent and intensity of present-day biomass harvests are changing the very foundations of civilization's well-being. In his detailed and comprehensive account, Smil presents the best possible quantifications of past and current global losses in order to assess the evolution and extent of biomass harvests. Drawing on the latest work in disciplines ranging from anthropology to environmental science, Smil offers a valuable long-term, planet-wide perspective on human-caused environmental change.

Biology And Chemistry Of Jerusalem Artichoke

Autore: Stanley J. Kays
Editore: CRC Press
ISBN: 9781420044966
Grandezza: 28,88 MB
Formato: PDF, ePub
Vista: 7549
Download Read Online

A unique plant on many levels, the distinctive properties of the Jerusalem artichoke, or Helianthus tuberosus L., present novel answers to some of today's most pressing problems. The potential of Jerusalem artichoke as a source for inulin, a fructose polymer that may provide dietary health benefits for obesity, diabetes, and several other health issues and the possible use of the crop for biofuels are drawing tremendous recent interest. With its ready cultivation and minimal pest and disease problems, Jerusalem artichoke is an underutilized resource that possesses the potential to meet major health and energy challenges. A comprehensive, up-to-date reference, Biology and Chemistry of Jerusalem Artichoke presents the unique biological and chemical properties that distinguish it from other crops. Citing a diverse cross-section of references, it reviews the history, classification, morphology, and anatomy of the plant. It details inulin chemistry addressing properties and structure, extraction, and modification using microbes, enzymes, and a wide range of chemical processes. The book examines the use of Jerusalem artichokes as a biofuel and the role of inulin derived from the crop in combating obesity and diabetes, as well as promoting bone, blood, bowel, and immune health. A comprehensive chapter addresses genetic resources, breeding, breeding methods, hybridization, and the heritability of important traits. The book details developmental biology in terms of maximizing yield and determining resource allocation as well as controlling pests and disease. It concludes with practical information on agronomic methods, storage, the economics of crop production, and future prospects for utilization. Gathering a wealth of information into a single volume and drawing on the authors' 25 years of research, Biology and Chemistry of Jerusalem Artichoke provides the most comprehensive resource to date on this extremely useful crop.

Fish Invasions Of The Mediterranean Sea

Autore: Daniel Golani
Editore: Pensoft Pub
ISBN:
Grandezza: 27,81 MB
Formato: PDF, Docs
Vista: 3697
Download Read Online

Biological invasions are one of the major factors affecting ecosystems throughout the world. The Mediterranean Sea is one of the most dynamic marine ecosystems in the world and is subject to ongoing invasions of marine organisms. This book focuses on fish invasions of the Mediterranean and presents the latest research on this subject. This comprehensive book includes chapters written by experts on paleontology, climate change, zoogeography, genetics, parasitology, biological monitoring and conservation, as well as chapters devoted to regional and local issues of countries surrounding the Mediterranean, written by experts from those countries. The editors of this book, Dr. Daniel Golani and Brenda Appelbaum-Golani of the Hebrew University of Jerusalem, have conducted ichthyological research for over three decades and have published numerous books and articles on fish invasions and biodiversity.