Your Search Results

      • Trusted Partner
        Microbiology (non-medical)
        January 1979

        Graminicolous Ascochyta species

        by E Punithalingam

        Mycological paper discussing the species of Graminicolous Ascochyta.

      • Trusted Partner
        Biotechnology
        April 2005

        Genetic Diversity of Cacao and its Utilization

        by Basil G D Bartley

        The cacao (Theobroma cacao) plant is an important Neo-Tropical species whose natural habitat is the Amazon basin. Over the last 30 years there has been a considerable geographical expansion in the availability of cacao genetic resources. As a result the plant has a rich genetic diversity that exists at two levels: that of the primitive populations in the area of original distribution of the species, and that of the derived cultivated populations. This book provides a comprehensive review of our current knowledge of the diversity of the species. It starts by examining the diversity and inheritance of the characteristics of primitive populations in the Amazonian and Caribbean regions. It then looks at the evolution of diversity within cultivated populations first in South America and around the Caribbean, and then beyond the Americas. The book describes the inter-relationships between populations based on morphological and molecular markers. It also examines the conservation of genetic resources and how these genetic resources can be utilized to produce new cultivars.

      • Trusted Partner
        Botany & plant sciences
        January 2008

        Conserving Plant Genetic Diversity in Protected Areas

        by Edited by José M Iriondo, Nigel Maxted, Mohammad E Dulloo

        Conservation in protected areas has focused on preserving biodiversity of ecosystems and species, whereas conserving the genetic diversity contained within species has historically often been ignored. However, maintaining genetic diversity is fundamental to food security and the provision of raw materials and it is best preserved within plants' natural habitats. This is particularly true for wild plants that are directly related to crop species and can play a key role in providing beneficial traits, such as pest or disease resistance and yield improvement. These wild relatives are presently threatened due to processes of habitat destruction and change and methodologies have been adapted to provide in-situ conservation through the establishment of genetic reserves within the existing network of protected areas.Providing a long-awaited synthesis of these new methodologies, this book presents a practical set of management guidelines that can be used for the conservation of plant genetic diversity of crop wild relatives in protected areas.

      • Trusted Partner
        January 2018

        Plant Diversity, Second Edition

        by J. Phil Gibson and Terri R. Gibson, Series Editor: William G. Hopkins

        Plants feed us, clothe us, provide us with the oxygen we breathe, and buffer our environment against change. In short, plants make life possible. Yet scientists estimate that more than 10 percent of the world's approximately 300,000 plant species are at risk of extinction, and huge swaths of tropical forests and other plant communities are being decimated daily. Plant Diversity, Second Edition surveys the world's plant diversity, from green algae through flowering plants, and presents the fascinating natural history and diversity of green plants in a taxonomic and evolutionary context. This title also asks and answers the questions: Why are there so many plant species in the world? And how can so many plants grow together in a given patch of prairie, forest, or wetland? Through the study of plant diversity, students will gain an appreciation of the natural world far beyond the classroom and the study of botany, to an understanding of how our actions impact the world around us. Plant Diversity, Second Edition is suitable as a supplementary text for a biology course or as recreational reading for the interested student.

      • Trusted Partner
        Biotechnology
        December 2004

        Plant Diversity and Evolution

        Genotypic and Phenotypic Variation in Higher Plants

        by Edited by Robert J Henry

        An understanding of plant diversity at both the genome and phenome level is important for both biodiversity conservation and plant breeding. Recent advances in genomics have also resulted in a growth of the subject of plant functional genomics. This book brings these areas together, by reviewing aspects of plant evolution as it relates to variation in plant genomes and associated variations in plant phenomes. Topics covered include chloroplast and mitochondrial genomes, reticulate evolution, polyploidy, population genetics within a species, the evolution of the flower, diversity in plant cell walls and in secondary metabolism, and the importance of plant diversity in ecology and agriculture.

      • Trusted Partner
        Geography & the Environment
        July 2018

        Invasive Species and Human Health

        by Giuseppe Mazza, Elena Tricarico, Pedro M. Anastácio, Leonardo Ancillotto, Sylvie Augustin, Daniela Boccolini, Giuseppe Brundu, Dario Capizzi, Lucilla Carnevali, Marco Di Luca, Franz Essl, Bella Galil, Piero Genovesi, Giulio Grandi, Lorenzo Lazzaro, Antonella Lugliè, Angeliki F. Martinou, Jolyon M. Medlock, Mattia Menchetti, Andrea Monaco, Emiliano Mori, Wolfgang Nentwig, Nikola Pantchev, Bachisio Mario Padedda, Olivier S.G. Pauwels, Cristina Preda, Petr Pyšek, Wolfgang Rabitsch, Julian Reynolds, Roberto Romi, Alain Roques, Helen E. Roy, Marie-Anne Auger-Rozenberg, Riccardo Scalera, Francis Schaffner, Stefan Schindler, Francesco Severini, Sauro Simoni, Catherine Souty-Grosset, Paolo Sposimo, Diederik Strubbe, Luciano Toma

        Invasive alien plants and animals are known for their disruption of ecosystems and threat to biodiversity. This book highlights their major impact on human health. This includes not only direct effects through contact with the species via bites, wounds and disease, but also indirect effects caused by changes induced in ecosystems by invasive species, such as more water hyacinth increasing mosquito levels and thereby the potential for malaria. Covering a wide range of case studies from different taxa (animals and plants), and giving an overview of the diverse impacts of invasive species on health in developed and developing countries, the book is a significant contribution that will help in prioritizing approaches to controlling invasive species and mitigating their health effects. It covers invasive plants, marine species, spiders and other arachnids, ticks and dust mites, insects, mosquitos and other diptera, freshwater species (invertebrates and fishes), amphibians and reptiles, birds and mammals. Key Features Collects together the major health impacts for the first time Covers animal and plant invasive species Examines issues in developed and developing countries The broad spectrum of the analyzed case studies will ensure the appeal of the book to a wide public, including researchers of biological invasions, doctors, policy-makers and managers, and students of invasive species in ecology, animal and plant biology and public health medicine.

      • Trusted Partner
        Biodiversity
        September 2001

        Invasive Alien Species

        A Toolkit of Best Prevention and Management Practices

        by Edited by R Wittenberg, Matthew J W Cock

        Human activities have contributed to the distribution of many plant, animal and microbial species to parts of the world where they are not native. This spread of alien species can have devastating consequences on native biodiversity. Examples include alien mammals consuming native vegetation and alien insects spreading viruses, as well as plants such as water hyacinth, which has caused major problems to waterways when introduced from South America.The Global Invasive Species Programme (GISP) was established to address concerns with alien invasive species, formulated in the Convention on Biological Diversity. GISP is coordinated by:the Scientific Committee on Problems of the Environment (SCOPE)the World Conservation Union (IUCN)CAB InternationalIts goal is to improve prevention and management of biological invasions, and this book represents a key outcome. It has been assembled by a team of international experts. Features include:case studies from around the globe, with some emphasis on islandsa focus on biodiversity, but with some consideration of traditional agriculture and forestryadvice on national management plans, including risk analysis.

      • Trusted Partner
        March 2021

        Mycoplasmas in Swine

        by Dominiek Maes, Marina Sibila, Maria Pieters

        wine can be infected with many different mycoplasmas. Some are important pathogens, causing significant health and welfare issues in pigs and major losses to the swine industry worldwide. Other mycoplasmas are not pathogenic for swine and can be considered commensals. This book provides up-to-date scientific, clinical and practical information of the most important pathogenic mycoplasmas in swine. Most emphasis has been placed on Mycoplasma hyopneumoniae as the most economically important, but other pathogenic species like Mycoplasma hyorhinis, Mycoplasma hyosynoviae and Mycoplasma suis are also discussed.Written by internationally renowned scientists and clinicians from all over the world, this book draws together in depth knowledge, expertise and experience in swine mycoplasmas to provide an evidence-based, academically rigorous and practical collection. It aims to serve the scientific and veterinary community and the swine industry worldwide. 1: Overview of the general characteristics and classification of porcine Mycoplasma species 2: Diversity of Mycoplasma hyopneumoniae strains 3: Mycoplasma hyopneumoniae pathogenicity: the known and the unknown 4: Epidemiology of Mycoplasma hyopneumoniae infections 5: Mycoplasma hyopneumoniae clinical signs and gross lung lesions, including monitoring 6: Immune responses against porcine Mycoplasma infections 7: Interactions of Mycoplasma hyopneumoniae with other pathogens and economic impact 8: Diagnosis of Mycoplasma hyopneumoniae infection and associated diseases 9: General control measures against Mycoplasma hyopneumoniae infections 10: Antimicrobial treatment of Mycoplasma hyopneumoniae infections 11: Vaccines and vaccination against Mycoplasma hyopneumoniae 12: Eradication of Mycoplasma hyopneumoniae from pig herds 13: Mycoplasma hyorhinis and Mycoplasma hyosynoviae in pig herds 14: Mycoplasma suis infections in pigs

      • Trusted Partner
        Science & Mathematics
        June 2019

        Community-based Control of Invasive Species

        by Paul Martin, Theodore R. Alter, Donald W. Hine, Tanya M. Howard

        Invasive species are among the greatest challenges to environmental sustainability and agricultural productivity in the world. One of the most promising approaches to managing invasive species is voluntary citizen stewardship. However, in order for control measures to be effective, private citizens often need to make sustained and sometimes burdensome commitments. Community-Based Control of Invasive Species is based on five years of research by leading scholars in natural resource and human behavioural sciences, which involved government and citizen groups in Australia and the United States. It examines questions including, 'how can citizens be engaged in voluntarily managing invasive species?', 'what communication strategies will ensure good motivation and coordination?' and 'how can governing bodies support citizens in their efforts?'. With chapters on institutional frameworks, changing governance, systems thinking, organisational learning, engagement, communication and behavioural change, this book will be a valuable reference for researchers and practitioners involved in natural resources management.

      • Trusted Partner
        January 2022

        The Fruit Fly Fauna (Diptera : Tephritidae : Dacinae) of Papua New Guinea, Indonesian Papua, Associated Islands and Bougainville

        by Richard A I Drew, Meredith C Romig

        The book is a taxonomic treatise of the tropical fruit flies of Papua New Guinea, Indonesian Papua, associated islands and Bougainville, the region of the world where speciation in the sub-family Dacinae has been most prolific. The book aims to provide readers with an updated record of all known species of Dacinae that occur in this geographic area including descriptions of 65 new species out of an entire list of 296 known species covered. It provides a discussion on the evolutionary origins of the Dacinae and a key to the genera and sub-genera recorded in the Australian-Pacific Region. Further, the major pest species and their biosecurity risks to other countries are discussed. Extensive field research by the authors and colleagues over many years has resulted in the accumulation of advanced knowledge of the tropical fruit flies in this region. - Records 296 known species - Descriptions and artwork of 65 new species - Discusses the evolutionary origins of the Dacinae - Provides a key to the genera and sub-genera in the Australian-Pacific A key reference for researchers of taxonomy, ecology and pest management in the family Tephritidae worldwide. Useful for biosecurity and horticulture workers in Agriculture Departments within government administration and universities around the world.

      • Trusted Partner
        Humanities & Social Sciences
        January 2024

        Dog politics

        Species stories and the animal sciences

        by Mariam Motamedi Fraser

        Do dogs belong with humans? Scientific accounts of dogs' 'species story,' in which contemporary dog-human relations are naturalised with reference to dogs' evolutionary becoming, suggest that they do. Dog politics dissects this story. This book offers a rich empirical analysis and critique of the development and consolidation of dogs' species story in science, asking what evidence exists to support it, and what practical consequences, for dogs, follow from it. It explores how this story is woven into broader scientific shifts in understandings of species, animals, and animal behaviours, and how such shifts were informed by and informed transformative political events, including slavery and colonialism, the Second World War and its aftermath, and the emergence of anti-racist movements in the twentieth and twenty-first centuries. The book pays particular attention to how species-thinking bears on 'race,' racism, and individuals.

      • Trusted Partner
        Geography & the Environment

        Series of the National Zoological Museum of China for Wildlife Ecology and Conservation: Animal Diversity

        by Zhang Jinshuo, Zhang Fan

        This book addresses major themes in biological diversity, and reviews new research results in taxonomy in each phyla. Many new discoveries are the first time to spread to Chinese readers, who may know the general principles of evolution, ecology, classification, systematics, and animal body plans. Then readers delve into the taxonomy and general biology of all groups of animals. The census of each groups, not only phylum, but orders, families, and even species and subspecies are quite new to science.   内容简介 本书使用目前国际上最新的、最权威的动物分类研究成果,将所有动物界中的各大门类作了系统的归纳和厘定,其中的各类群,例如纲、目、科等级别的最新变化和成果充分地反映在本书之中,是目前为止国内对所有动物的多样性研究最新的总结。

      • Trusted Partner
        June 2024

        Key Questions in Wildlife & Nature Conservation Law

        A study and revision guide

        by Paul A. Rees

        Law plays an essential part in the conservation of wildlife and ecosystems. The study of wildlife and nature conservation law is an important component of a wide range of programmes of study including wildlife conservation, environmental management and environmental law. This book is a study and revision guide for students following such programmes. It contains 600 multiple choice questions (and answers) set at three levels - foundation, intermediate and advanced - and grouped into 10 major topic areas: 1. Principles of Wildlife and Nature Conservation Law 2. History of Wildlife and Nature Conservation Law 3. Species Protection and Exploitation I - EU and International Law 4. Species Protection and Exploitation II - National Laws 5. Protected Areas and Habitats I - EU and International Laws 6. Protected Areas and Habitats II - National Laws 7. Planning, Pollution, Restoration and Conservation Funding 8. Wildlife Trade, Animal Collections and Alien Species 9. Wildlife Law Enforcement and Penalties 10. Legal Texts This book has been produced in a convenient format so that it can be used at any time, in any place. It allows the reader to learn and revise the meaning of terms used in wildlife and nature conservation law and study the role of legislation at national, European Union (EU) and international level in the protection of individual species, habitats and landscapes. It uses examples from a wide variety of taxa, habitats and protected areas selected from a range of jurisdictions from the United Kingdom, the United States and Australia to Antarctica and the High Seas. Topics include the control of hunting, the conservation of trees and forests, the protection of National Parks and wilderness areas, wildlife trade and the organisations involved in the enforcement of wildlife laws. The structure of the book allows the study of one topic area at a time, progressing through simple questions to those that are more demanding. Some of the questions require students to use their knowledge to interpret information provided in the form of photographs and legal texts.

      • Trusted Partner
        Management of land & natural resources
        August 2014

        Invasive Species and Global Climate Change

        by John P Thompson, Karen Garrett, Andrew Guitierrez, Dana Blumenthal, Elsa Cleland, Kevin Hughes, Jacques Regniere, Cascade Sorte, Makra Laszlo, Arne Witt, Tom Stohlgren, Jil Swearingen, Hilda Diaz-Soltero, Bethany Bradley, Toni DiTommaso, Randy Westbrooks, Li Bo, Matthew Barnes. Edited by Lewis Ziska, Jeffery Dukes.

        This book examines what will happen to global invasive species, including plants, animals and pathogens with current and expected man-made climate change. The effects on distribution, success, spread and impact of invasive species are considered for a series of case studies from a number of countries. This book will be of great value to researchers, policymakers and industry in responding to changing management needs.

      • Trusted Partner
        Geography & the Environment
        September 2019

        Invasive Species and Global Climate Change

        by Lewis Ziska, Jeffery Dukes

        This book examines what will happen to global invasive species, including plants, animals and pathogens with current and expected man-made climate change. The effects on distribution, success, spread and impact of invasive species are considered for a series of case studies from a number of countries. This book will be of great value to researchers, policymakers and industry in responding to changing management needs.

      • Trusted Partner
      • Trusted Partner
        Science & Mathematics
        July 2020

        Mason's World Dictionary of Livestock Breeds, Types and Varieties

        by Valerie Porter, Ali Thompson

        Mason's World Dictionary of Livestock Breeds, Types and Varieties, now in its sixth edition, has a long history as a reliable and authoritative source of key livestock breed information. Intended as a list of livestock names and synonyms for breeds, groups, types and varieties worldwide, the dictionary aims to include all names found in the literature, 'defining' each breed or type with a brief indication of identifying characteristics, uses and source of origin. Expanded into a new edition, this established and trusted resource: - Extends coverage to include yak, reindeer and camelids in addition to the existing cattle, sheep, pigs, goats, horses, asses and buffalo - Features well over 10,000 entries and cross-references on breeds, sub-breeds, types, varieties, strains and lines of species - Covers newly created and now-recognised local breeds documented over the last two decades An important updated work, Mason's dictionary forms a useful reference for livestock breeders and academics interested in breeds, as well as national and international organizations with interests in livestock.

      • Trusted Partner
        July 2024

        Conservation of Dragonflies

        Sentinels for Freshwater Conservation

        by Michael J Samways

        Dragonflies are among the most familiar and popular of all insects, deeply embedded in human cultural history. They are iconic and tell us much about the environments in which we and they live. Their conservation is an important part of biodiversity conservation. One modern dragonfly species is listed as extinct, with many others currently threatened. It is now essential to increase conservation efforts towards saving these threatened species, with strategies now available for doing this. Recovery of dragonfly populations goes hand in hand with improvements to both freshwater conditions and bank vegetation quality. In contrast, some other dragonfly species have benefitted greatly from human transformation of the landscape, with artificial ponds in particular, increasing the population levels of many species. In turn, climate change is seeing many geographical range shifts. Dragonflies are variously sensitive to the health of freshwater systems, and the quality of vegetation along rivers and around ponds. Dragonflies are excellent indicators in these times of great concern over the quality of our freshwater supplies. Their wide range of sensitivities enables us to measure the extent to which freshwater ecosystems are either deteriorating or are improving when we undertake restoration. They enable us to gauge how well we are conserving freshwaters, whether ponds and lakes, streams or rivers. They are also good umbrellas for many other freshwater inhabitants, which altogether reflect the health of a freshwater system. Conservation of Dragonflies: Sentinels for Freshwater Conservation is for naturalists, citizen scientists, entomologists and conservation scientists, as well as practitioners and policy makers around the world.

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