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An authoritative review of the ecology of forest birds and their conservation issues throughout the Northern Hemisphere.
Guia dels arxius històrics de Catalunya. - V.4
Focusing on how to provide clean water for all - one of the key Millennium Development Goals, this book integrates technical and social perspectives. A broad, international range of case studies are provided, from developed, middle income and developing countries, in Europe, Asia, Africa, and the Americas.
En los últimos años hemos asistido a un auténtico despertar archivístico que es necesario evaluar a través de un examen de la trayectoria de los archivos municipales durante toda la etapa contemporánea: revolución liberal (1812-1875), Restauración y segunda República (1876-1936), y guerra civil, franquismo y monarquía democrática. Este libro ofrece una completa visión de las políticas seguidas por las diferentes administraciones, marco legal, publicaciones y actuaciones que en cada uno de estos períodos se han producido, para concluir con un análisis de las situación actual
Climate change is a complex phenomenon with a wide range of impacts on the environment. Biotic and abiotic stress are a result of climate change. Abiotic stress is caused by primary and secondary stresses which are an impediment to plant productivity. Prolonged exposure to these stresses results in altered metabolism and damage to biomolecules. Plants evolve defense mechanisms to withstand these stresses, e.g. synthesis of osmolytes, osmoprotectants, and antioxidants. Stress responsive genes and gene products including expressed proteins are implicated in conferring tolerance to the plant. This volume will provide the reader with a wide spectrum of information, including vital references. It...
Environmental insults such as extremes of temperature, extremes of water status as well as deteriorating soil conditions pose major threats to agriculture and food security. Employing contemporary tools and techniques from all branches of science, attempts are being made worldwide to understand how plants respond to abiotic stresses with the aim to help manipulate plant performance that will be better suited to withstand these stresses. This book on abiotic stress attempts to search for possible answers to several basic questions related to plant responses towards abiotic stresses. Presented in this book is a holistic view of the general principles of stress perception, signal transduction and regulation of gene expression. Further, chapters analyze not only model systems but extrapolate interpretations obtained from models to crops. Lastly, discusses how stress-tolerant crop or model plants have been or are being raised through plant breeding and genetic engineering approaches. Twenty three chapters, written by international authorities, integrate molecular details with overall plant structure and physiology, in a text-book style, including key references.