Gastrotricha and Gnathifera

Gastrotricha and Gnathifera PDF Author: Andreas Schmidt-Rhaesa
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110385562
Category : Science
Languages : en
Pages : 641

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Book Description
This section of the Handbook of Zoology is intended as a comprehensive and exhaustive account of the biology of the taxa Gastrotricha, Nematoda, Nematomorpha, Priapulida, Kinorhyncha, Loricifera, Gnathostomulida, Micrognathozoa, Rotifera, Seisonida and Acanthocephala, covering all relevant topics such as morphology, ecology, phylogeny and diversity. The series is intended to be a detailed and up-to-date account of these taxa. As was the case with the first edition, the Handbook is intended to serve as a reliable resource for decades. Many of the taxa of this volume are comparatively unknown to many biologists, despite their diversity and importance for example in meiofaunal communities (Gastrotricha, Rotifera, Gnathostomulida), their fascinating recent discoveries (Loricifera and Micrognathozoa), their importance as parasites (many nematodes, Nematomorpha, Acanthocephala) and their importance for evolutionary questions (e.g. Priapulida, Gastrotricha). The groups covered range from those poor in species (such as Micrognathozoa with 2 known species) to the species-rich and diverse Nematoda and their ca. 20.000 described species. While each taxon is covered by one chapter, nematodes are treated in several chapters dedicated to their structural, taxonomic and ecological diversity.

Gastrotricha and Gnathifera

Gastrotricha and Gnathifera PDF Author: Andreas Schmidt-Rhaesa
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110385562
Category : Science
Languages : en
Pages : 641

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Book Description
This section of the Handbook of Zoology is intended as a comprehensive and exhaustive account of the biology of the taxa Gastrotricha, Nematoda, Nematomorpha, Priapulida, Kinorhyncha, Loricifera, Gnathostomulida, Micrognathozoa, Rotifera, Seisonida and Acanthocephala, covering all relevant topics such as morphology, ecology, phylogeny and diversity. The series is intended to be a detailed and up-to-date account of these taxa. As was the case with the first edition, the Handbook is intended to serve as a reliable resource for decades. Many of the taxa of this volume are comparatively unknown to many biologists, despite their diversity and importance for example in meiofaunal communities (Gastrotricha, Rotifera, Gnathostomulida), their fascinating recent discoveries (Loricifera and Micrognathozoa), their importance as parasites (many nematodes, Nematomorpha, Acanthocephala) and their importance for evolutionary questions (e.g. Priapulida, Gastrotricha). The groups covered range from those poor in species (such as Micrognathozoa with 2 known species) to the species-rich and diverse Nematoda and their ca. 20.000 described species. While each taxon is covered by one chapter, nematodes are treated in several chapters dedicated to their structural, taxonomic and ecological diversity.

Protist Diversity and Geographical Distribution

Protist Diversity and Geographical Distribution PDF Author: W. Foissner
Publisher: Springer Science & Business Media
ISBN: 9048128013
Category : Science
Languages : en
Pages : 213

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Book Description
Conservation and biodiversity of protists The conservation of biodiversity is not just an issue of plants and vertebrates. It is the scarcely visible invertebrates and myriads of other microscopic organisms that are crucial to the maintenance of ecological processes on which all larger organisms and the composition of the atmosphere ultimately depend. Biodiversity and Conservation endeavours to take an holistic view of biodiversity, and when the opportunity arises to issue collections of papers dealing with too-often neglected groups of organisms. The protists, essentially eukaryotes that cannot be classi?ed in the kingdoms of animals, fungi, or plants, include some of the lea- known groups of organisms on earth. They are generally treated as a separate kingdom, commonly named Protista (or Protoctista) in textbooks, but in reality they are a mixture of organisms with disparate a?nities. Some authors have hypothesized that the numbers of protists are not especially large, and that many have extraordinarily wide distributions. However, the p- ture that unfolds from the latest studies discussed in this issue is di?erent. There are many species with wide ranges, and proportionately more cosmopolitan species than in macroorganism groups, as a result of their long evolutionary histories, but there are also de?nite patterns and geographical restrictions to be found. Further, some protists are linked to host organisms as mutualists or parasites and necessarily con?ned to the distributions of their hosts.

Biodiversity of Ciliates and their Symbionts

Biodiversity of Ciliates and their Symbionts PDF Author: Martina Schrallhammer
Publisher: MDPI
ISBN: 3039439677
Category : Social Science
Languages : en
Pages : 120

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Book Description
In the past three decades, a stream of criminological inquiry has emerged which explores, measures, and theorizes crimes and harms to the environment at the micro-, mezzo-, and macro-levels. This “green criminology”, as it has come to be known, has widened the criminological gaze to consider crimes and harms committed against air, land (from forests to wetlands), nonhuman animals, and water in local, regional, national, and international areas or arenas. Accordingly, green criminology has endeavored to understand the causes and consequences of air and water pollution, biodiversity loss, climate change, corporate environmental crime (e.g., illegal waste disposal), food production and distribution, resource extraction and exploitation, and wildlife trade and trafficking, while also exploring potential responses to these issues. This book seeks to introduce the green criminological perspective to a broader social science audience. Recognizing that green criminology is not the first social science to explore the phenomena and harms at the intersections of humanity and ecology, this book offers an introduction to some of the unique insights developed over nearly 30 years of green criminological thought and scholarship to students, professors, researchers, and practitioners working in the fields of anthropology, economics, environmental humanities, environmental sociology, geography, history, and political ecology. This book contains contributions from researchers in green criminology from around the world, including early- and mid-career scholars, as well as more established voices in the field—all of whom are dedicated to exposing, understanding, and ultimately hoping to thwart further environmental degradation and despoliation.

The Sphagnum Ponds of Simmelried in Germany

The Sphagnum Ponds of Simmelried in Germany PDF Author: Martin Kreutz
Publisher:
ISBN: 9783832225445
Category : Microorganisms
Languages : en
Pages : 267

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Book Description
This study describes 656 species of bacteria, protists, and micro-metazoa occurring in the Simmelried, a three hectare-sized moorland near to the town of Constance, southern Germany. Each species is shown by an average of two colour micrographs. Further, the surface organization of most main groups and many ciliate species is demonstrated by scanning electron micrographs.The Simmelried formed after the last (Würm) ice-age, that is, about 15.000 years ago, when a regressing glacier tongue produced a terrain with water-filled depressions between streamlined boulder depositions. The investigations indicate that the 656 species documented represent only two thirds of the taxa actually present. Thus, a considerable diversity accumulated over 15.000 years, emphasizing the great distribution capacity of micro-organisms. On the other hand, some common species are lacking (e. g., the ciliate Colpidium colpoda, the euglenid Phacus pleuronectes, and rotifers of the genera Proales and Floscularia) and many undescribed species were discovered. While a mass of undescribed species is comprehensible in amoebas, flagellates and ciliates, which are poorly researched, this is surprising in weII-known groups, such as euglenids and chrysophytes. Thus, we must face the possibility that some of the undescribed species are regional or Iocal endemics. The high species richness, induding many undescribed species, suggests the Simmelried as a regional biodiversity centre worth to be protected by law.

Freshwater Algae in Australia

Freshwater Algae in Australia PDF Author: Timothy John Entwisle
Publisher:
ISBN:
Category : Algae
Languages : en
Pages : 266

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Book Description
Featuring over 300 colour photographs, supplemented by elegant hand drawings, this book is a guide to the conspicuous algae found in the streams and lakes of Australia.

The Ciliated Protozoa

The Ciliated Protozoa PDF Author: Denis Lynn
Publisher: Springer Science & Business Media
ISBN: 1402082398
Category : Science
Languages : en
Pages : 627

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Book Description
distances between groups of ciliates were as vast as significant hurdles to obtain copyright permissions the genetic distances between plants and animals for the over 1,000 required illustrations, and I put – THE major eukaryotic kingdoms at that time! the publication schedule ahead of this element. I continued to collaborate with Mitch, and in There are a number of significant illustrated guides 1991 my first “molecular” Magisterial student, to genera and species that have recently been pub- Spencer Greenwood, published an article estab- lished. References are made to these throughout lishing 1990 or thereabouts as the beginning of the book as sources that readers can consult for this the “Age of Refinement” – the period when gene aspect of ciliate diversity. A future project that I am sequencing techniques would deepen our under- contemplating is an illustrated guide to all the valid standing of the major lines of evolution within ciliate genera.

The Microscope and How to Use It

The Microscope and How to Use It PDF Author: Dr. Georg Stehli
Publisher: Courier Corporation
ISBN: 048613721X
Category : Science
Languages : en
Pages : 162

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Book Description
In nontechnical language and with 199 photographs and drawings, the author clearly explains how a microscope works and what kind to use; preparation and examination of specimens, and much more.

FUNDAMENTALS OF PLANT PATHOLOGY

FUNDAMENTALS OF PLANT PATHOLOGY PDF Author: N. G. RAVICHANDRA
Publisher: PHI Learning Pvt. Ltd.
ISBN: 812034703X
Category : Technology & Engineering
Languages : en
Pages : 662

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Book Description
This book is based on the syllabus prescribed by the Indian Council of Agricultural Research, New Delhi, for the first and second year undergraduate students of plant pathology in State Agricultural and Horticultural Universities and hence, is of special importance to these students. The text, conveniently divided into 13 chapters, deals with fundamental aspects of plant pathology viz., scope and objectives, importance of plant diseases, history and development of plant pathology, theory of plant diseases, causes of plant diseases (biotic, abiotic and plant viruses with representative examples) symptoms, general characteristics of plant pathogens, classification of phytopathogens, growth and reproduction of plant pathogens including replication of plant viruses, liberation or dispersal of plant pathogens, their survival and types of parasitism and variability in plant pathogens. At the end of each chapter, important questions have been provided for the benefit of the students. Diagrams, convincing tables and suitable graphs/illustrations are furnished at appropriate places. A complete bibliography and apt subject index are appended at the end. Besides undergraduate students, this book will also serve as a basic guide to meet the requirement of teachers/researchers in plant pathology and related fields.

Ecology of Protozoa

Ecology of Protozoa PDF Author: Genoveva F. Esteban
Publisher: Springer Nature
ISBN: 3030599795
Category : Science
Languages : en
Pages : 188

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Book Description
This book emphasises the important role that protozoa play in many natural ecosystems. To shed new light on their individual adaptive skills, the respective chapters examine the ecology and functional biology of this diverse group of eukaryotic microbes. Protozoa are well-established model organisms that exemplify many general problems in population ecology and community ecology, as well as evolutionary biology. Their particular characteristics, like large population sizes, life cycles and motile sensory behaviour, have a profound impact on their survival, distribution, and interaction with other species. Thus, readers will also be introduced to protozoan habitats in a broad range of environments. Even though this group of unicellular organisms is highly diverse, the authors focus on shared ecological patterns. Students and scientists working in the areas of eukaryotic microbiology and ecology will appreciate this updated and revised 2nd Edition as a valuable reference guide to the “lifestyles” of protozoa.

Identification and Ecology of Limnetic Plankton Ciliates

Identification and Ecology of Limnetic Plankton Ciliates PDF Author: Wilhelm Foissner
Publisher: Informationberichte Des Bayerischen Landesamtes Furinsti Fur
ISBN:
Category : Science
Languages : en
Pages : 808

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Book Description