Ecology of Freshwater Nematodes
Ecology of Freshwater Nematodes

Author: Walter Traunspurger

Publisher: CABI

Published: 2021-07-16

Total Pages: 397

ISBN-13: 1789243637

DOWNLOAD EBOOK

Nematodes are incontestably the most numerous and the most diverse metazoans in freshwater habitats, and these properties bestow exceptional significance to their role in the environment. An array of functional roles has been attributed to them: they are grazers on bacteria and primary producers, regulators of decomposition of plant material, predators, prey for other animals, and closely associated symbionts of bacteria and other organisms. Freshwater nematodes are central in the context of environmental monitoring, pollution assessments, global warming and food webs, and this is increasingly being recognized. Moreover, the short generation time (a few days to months) of many species makes nematodes ideal for laboratory studies. This book offers guidelines for studying the ecology of free-living nematodes, including detailed protocols and case studies.

The Changing Wildlife of Great Britain and Ireland
The Changing Wildlife of Great Britain and Ireland

Author: David L. Hawksworth

Publisher: CRC Press

Published: 2003-06-26

Total Pages: 486

ISBN-13: 9780415326810

DOWNLOAD EBOOK

Periodic comprehensive overviews of the status of the diverse organisms that make up wildlife are essential to determining trends, threats and future prospects. Just over 25 years ago, leading authorities on different kinds of wildlife came together to prepare an assessment of their status of a wide range of organisms in Great Britain and Ireland in The Changing Flora and Fauna of Britain, also edited by Professor David L. Hawksworth CBE. Now, in The Changing Wildlife of Great Britain and Ireland, he has gathered together some of the original and also new contributors to review changes since that time and look to the future. Contributions range from viruses, diatoms, fungi, lichens, mites and nematodes; through butterflies, dragonflies, flies and slugs; to flowering plants, ferns, mammals, birds and fish. The state of knowledge in different groups is assessed, and the effectiveness of statutory and other measures taken to safeguard wildlife considered. The picture is far from bleak, ameliorating sulphur dioxide levels have benefited sensitive lichens and mosses in a dramatic way, water quality improvement has been beneficial, there have been few certain extinctions and rediscoveries of species thought to have been lost. Biodiversity Action Plans have also benefited targeted species, but habitat restoration and management for some is not always good for others. But there are worrying trends in declining populations, with an increasing number being regarded as threatened or endangered, especially in agricultural areas, and where woodland management has changed, particular threats from introduced species, and concern over the effects of climate change. Some of the smaller organisms remain poorly known, a situation unlikely to change as expertise in many is scant or being lost. This stock-check and look to the future will be a key source book to conservationists, naturalists, and professional biologists for many years to come.

INTRO STUDY MEIOFAUNA
INTRO STUDY MEIOFAUNA

Author: HIGGINS ROBERT P

Publisher: Smithsonian Books (DC)

Published: 1988-09-17

Total Pages: 496

ISBN-13:

DOWNLOAD EBOOK

Collecting 78 of the most significant papers presented at the Third International Conference on the Biology of Sponges, the volume's scope is includes studies on sponge paleobiology, biochemistry, chemotaxonomy, immunology, evolutionary biology, population ecology, and species interaction.

Marine and Coastal Systems of the Quoddy Region, New Brunswick
Marine and Coastal Systems of the Quoddy Region, New Brunswick

Author: Martin Lewis Hall Thomas

Publisher:

Published: 1983

Total Pages: 324

ISBN-13:

DOWNLOAD EBOOK

The book describes the main marine and coastal biological systems of Passamaquoddy Bay and adjacent waters and the oceanographic and meteorological characteristics of the area. Subject areas begin with meteorolgy and oceanography. The second group covers the intertidal systems with chapters on rocky intertidal shores, rock pools, coarse sedimentary shores and salt marshes. The third general section covers hard and sedimentary sublittoral habitats. Following chapters discuss pelagic systems under the headings fishes, phytoplankton, larger zooplankton, and microzooplankton. Three chapters deal with the birds, amphibians and reptiles, and marine mammals. Finally coastal vegetation is described.

Freshwater Nematodes
Freshwater Nematodes

Author: Eyualem Abebe

Publisher: CABI

Published: 2006

Total Pages: 772

ISBN-13: 0851990096

DOWNLOAD EBOOK

This book contains 22 chapters on various aspects of freshwater nematode ecology and taxonomy. Subjects covered include the techniques for processing freshwater nematodes, the composition and distribution of free living freshwater nematodes, their abundance, biomass and diversity, the production of freshwater nematodes, their feeding ecology, patterns in size structure of freshwater nematode communities, different nematode habitats, and computation and application of nematode community indices. It provides descriptions with figures of each taxon at the genus level and above to currently valid genera. For every genus, a complete list of species, with an emphasis on biogeography, is given for primarily freshwater taxa and a list of only those species reported from freshwater bodies is given for the genera that are considered primarily non-freshwater. This book is intended to provide a useful reference to students, beginners and established researchers in the field of freshwater nematology, benthologists, invertebrate biologists, limnologists, ecologists, microbiologists and soil biologists.