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Ecological Indicators for Coastal and Estuarine Environmental Assessment
Ecological indicators address ecosystems structure and/or function and are commonly used to provide synoptic information about their state. Through quantitative representations of either the forces that steer ecosystems, responses to forcing functions, or of previous, current, or future states of an ecosystem, indicators are expected to reveal conditions and trends that will help in development planning and decision making processes. Ecological indicators combine numerous environmental factors in a single value, which may be useful in terms of management and in the development of ecological concepts, compliant with the general public's understanding. Nevertheless, their application is not exempt of criticisms, the first of which is that aggregation results in an oversimplification of the ecosystem under observation. Ecological indicators must therefore be handled following the right criteria and in situations that are consistent with its intended use and scope; otherwise they may drive to confusing interpretations of data.
Ecological indicators in coastal and estuarine environmental quality assessment: a user friendly guide for practitioners
Experience demonstrates that none of the available measures regarding biological effects of pollution can be considered ideal, which is due to the complexity inherent in assessing the environmental quality of a system. In fact, it is always preferable to combine a suite of indices providing complementary information. This book aims at helping researchers and students, as well as managers and authorities of coastal areas in selecting the most suitable ecological indicators for each case, taking into account the type of disturbance they want to assess and the data available to do it. A user friendly guide is proposed, accounting different theoretical approaches and discussing the results of its application in different geographical areas. Recommendations are provided regarding the most adequate application of different indices, illustrating for instance in what situations their use is recommendable, or on the contrary not advisable, depending on the characteristics of the disturbance, the type of data, or the level of taxonomic identification of the organisms.
Aquatic ecology of the Mondego River basin global importance of local experience
Results from ecological studies of the Mondego river basin carried out during the last 15 years are gathered in this book. Following a comprehensive introduction on fundamental physicochemical aspects of the system, the communities structure and diversity, nutrient cycle and plant dynamics, both in freshwater and in the estuary, are addressed. Moreover, existing environmental monitoring, assesment, and management (e.g. ecological indicators and models ) are also approached. This book represents therefore an essencial source of information, indispensable for researchers, environmental managers, and decision makers that will have to deal with such a complex system.
How Peripheral is the Periphery? Translating Portugal Back and Forth
This volume is a result of the need to reflect upon Portugal’s position from the viewpoint of the literary assets imported and exported through translation. It brings together a number of scholars working in the field of Translation Studies directly concerned with the Portuguese cultural system in order to analyse this question from various theoretical perspectives and from case studies of translation flows and movements in Portuguese culture. By Translating Portugal Back and Forth, the articles discuss issues such as: how can one draw the borderline between a peripheral and a semi-peripheral system? Is this borderline useful or necessary? How peripheral is the Portuguese cultural system a...
China's Internal and International Migration
One consequence of China’s economic growth has been a massive increase in migration, both internal and external. Within China millions of rural workers have migrated to the cities. Outside China, many Chinese have migrated to other parts of the world, their remittances home often having a significant impact within China. Also, China’s increasing links to other parts of the world have led to a growth in migration to China, most interestingly recently migration from Africa. Based on extensive original research, this book examines a wide range of issues connected to Chinese migration.
Algal Metabolites
Algal secondary metabolites have several biotechnological, pharmaeceutical, industral, cosmetic, and other commercial applications. This new book highlights the recent advances in algal active metabolites, emphasizing their pharmaceutical, therapeutic, nutraceutical, and industral potential. It first provides an introduction to algal metabolites and discusses their applications. It then looks at microalgal- their pharmaeceutical, therapeutic, nutraceutical, and industrial applications. Providing a wealth of information, this book illustrates the diversity of these metabolites from indegeneous marine of freshwater sources, providing a gateway that can enable researchers and pharmaceutical companies to develop novel nontoxic, cost-effective, and highly efficient drugs.
Postcolonial Portuguese Migration to Angola
Grounded in extensive and original ethnographic fieldwork, this book makes a novel contribution to migration studies by examining a European labour migration to the Global South, namely contemporary Portuguese migration to Angola in a postcolonial context. In doing so, it explores everyday encounters at work between the Portuguese migrants and their Angolan “hosts”, and it analyses how the Luso-African postcolonial heritage interplays with the recent Portuguese-Angolan migration in the (re-)construction of power relations and identities. Based on ethnographic interviews, the book describes the Angolan-Portuguese relationship as characterized not only by hierarchies of power, but also by ...
New and Old Routes of Portuguese Emigration
This open access book offers a comparative overview on Portuguese emigration in Europe and outside the EU in times of recession. It looks at Portuguese emigrants who, after the crisis of 2008, moved both intra-EU, such as UK, France, Switzerland, Germany and Spain, but also into countries with historical links, such as the USA and Canada, and to Portuguese speaking countries such as Brazil, Angola and Mozambique, as well as the processes of return. In addition to the dynamics of movement, the book provides an in-depth analysis of the heterogeneity of this emigration. It deepens the multifaceted identities concerning social and professional pathways among highly skilled and less skilled emigrants. The labour market continues to be the main regulatory force of Portuguese emigration, which helps to explain the outflow and the processes of settlement and return. Nonetheless, this book demonstrates that non-economic factors have likewise been of great importance in the decision to emigrate. As such this book will be a valuable read to policy makers, students and scholars in migration.
Proceedings of the International Conference on Microplastic Pollution in the Mediterranean Sea
This book focuses on different aspects of microplastic pollution, offering authors and readers the opportunity to share their knowledge, identify issues and propose solutions and actions to face this environmental threat. Although plastic pollution is a well-known global problem, the recent discovery of microplastics and nanoplastics in seas and oceans represents a very alarming new environmental challenge. The book offers comprehensive insights into the origins of the problem, its impact on marine environments, particularly the Mediterranean Sea and coasts, and the current research trends aimed at finding technical solutions to mitigate the phenomenon. It is primarily intended for scientists and decision makers from industry, international, national and local institutions and NGOs
