Studies on the Enchytraeidae of North America
Author: Paul Smith Welch
Publisher:
Published: 1913
Total Pages: 114
ISBN-13:
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Author: Paul Smith Welch
Publisher:
Published: 1913
Total Pages: 114
ISBN-13:
DOWNLOAD EBOOKAuthor: Paul Smith Welch
Publisher:
Published: 1914
Total Pages: 114
ISBN-13:
DOWNLOAD EBOOKAuthor: A Burgers
Publisher: Elsevier
Published: 2012-12-02
Total Pages: 543
ISBN-13: 0323146589
DOWNLOAD EBOOKSoil Biology brings together the microbiological, botanical, and zoological aspects of soil biology. Leading specialists provide critical reviews and assessments of their particular branches of soil biology, paying particular attention to functional aspects and biotic interrelationships whenever possible. This volume is organized into 17 chapters and begins with an overview of the soil system, emphasizing the system components including the mineral fraction, organic matter, soil moisture, and soil atmosphere. The next chapters focus on microorganisms present in the soil, along with their effects on plant roots. The book also discusses the soil algae, including how algae are affected by physical and chemical environments and their interrelations with other organisms. The remaining chapters look at other organisms that inhabit the soil, including Arthropoda, Collembola, and Mollusca, as well as the probable effects of inhibiting substances upon the biology of soil microorganisms. The final chapters explain the decomposition of organic matter in the soil and the effects of synthetic chemicals on soil microorganisms. This book is a valuable resource for soil biologists and research workers in fields such as botany, agriculture, zoology, and microbiology.
Author: Malcolm E. Sumner
Publisher: CRC Press
Published: 1999-08-31
Total Pages: 2240
ISBN-13: 9780849331367
DOWNLOAD EBOOKThe Handbook of Soil Science provides a resource rich in data that gives professional soil scientists, agronomists, engineers, ecologists, biologists, naturalists, and their students a handy reference about the discipline of soil science. This handbook serves professionals seeking specific, factual reference information. Each subsection includes a description of concepts and theories; definitions; approaches; methodologies and procedures; tabular data; figures; and extensive references.
Author: Pan Ming Huang
Publisher: CRC Press
Published: 2018-10-03
Total Pages: 2272
ISBN-13: 1439803048
DOWNLOAD EBOOKAn evolving, living organic/inorganic covering, soil is in dynamic equilibrium with the atmosphere above, the biosphere within, and the geology below. It acts as an anchor for roots, a purveyor of water and nutrients, a residence for a vast community of microorganisms and animals, a sanitizer of the environment, and a source of raw materials for co
Author: Pilar Rodriguez
Publisher: Springer Science & Business Media
Published: 2011-08-30
Total Pages: 271
ISBN-13: 9400717180
DOWNLOAD EBOOKIn aquatic ecosystems, the oligochaetes are often a major component of the community. Their relevance in sediment quality assessment is largely related to their benthic and detritivorous life habit. In this book, we aim to present the state of the art of Pollution Biology using oligochaete worms in laboratory and field studies. Future research will require the combination of a variety of methodological approaches and the integration of the resulting information, avoiding fragmented and often conflicting visions of the relationships of the species with their environment. Current approaches to ecotoxicology and bioaccumulation using ecological risk assessment provide the opportunity to relate community studies with probability of effects. This book addresses three main themes: Ecological and Field Studies using the composition and structure of oligochaete communities, Toxicology and Laboratory Studies, and Bioaccumulation and Trophic Transfer Studies. Two appendices list values of toxicological parameters (LC50, EC50) and several bioaccumulation variables (bioaccumulation factors, biological half-life, toxicokinetic coefficients, and critical body residues) for different oligochaete species. Additional information is provided on Methodological Issues and on the Taxonomy of several oligochaete families, with information on the most recent taxonomic debates. Each chapter includes a critical view, based on the authors’ experience, of a number of current issues which have been raised in the literature.
Author: Frans Emil Wielgolaski
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 349
ISBN-13: 3642662765
DOWNLOAD EBOOKAnimals are important components of any ecosystem and it is impossible to describe structure and funCtioning of the Fennoscandian tundra ecosystems without including this part of the system. However, the strong diversity between functionally highly different fauna groups makes it impossible to study all groups in great detail with the funds and expertise available in Fennoscandia. Relatively few productivity studies were carried out on animals in Fenno scandian tundra regions before the IBP projects started in 1969-1970. Within IBP, more fauna groups have been investigated in the Norwegian tundra project than in the other countries, due to better financial support. Even in Norway, however, only a limited number of invertebrate and vertebrate taxons is studied. General lack of information on the same animals in various parts of the Fennoscandian tundra makes it more difficult to present structural and functional comparisons of fauna for the whole region than in plants and microorganisms (see Part 1 of Fennoscandian Tundra Ecosystems). Brief surveys on faunal problems within the area are given in the introduction to the animal section, and general aspects are also discussed in the four first papers of the volume.
Author: C. Overgaard Nielsen
Publisher:
Published: 1959
Total Pages: 164
ISBN-13:
DOWNLOAD EBOOKAuthor: Brenda M. Healy
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 288
ISBN-13: 9401142076
DOWNLOAD EBOOKThe book contains papers on the biology of aquatic oligochaetes and some related groups. They cover a wide range of topics including phylogeny, taxonomy, geographic distribution, freshwater and marine ecology, population dynamics, histology and ultrastructure, physiology and behaviour. The wide scope is in line with recent trends in annelid research with less emphasis on pollution studies and faunistics and a renewed interest in experimental biology using new techniques.
Author: Carlo Emery
Publisher:
Published: 1900
Total Pages: 16
ISBN-13:
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