Download or read book rboles nativos de Argentina Centro y Cuyo written by Pablo Demaio and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pharmacological Properties of Native Plants from Argentina written by María Alejandra Alvarez and published by Springer Nature. This book was released on 2019-09-06 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to offer information about the Pharmacological Properties of Native Plants from Argentina to students, researchers and graduates interested in the fields of Ethnobotany, Pharmacognosy, Phytochemistry, Pharmacy, and Medicine. The book includes summary information about the native plants from Argentina with medical activity comprising their botanical characteristics, distribution, characteristics of the regions where they grow, ethnobotanical information, chemical data, biological activity, establishment of in vitro cultures, toxicity, and legal status.
Download or read book rboles nativos de Argentina written by Pablo Demaio and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nature s in Construction written by María Lelia Pochettino and published by Springer Nature. This book was released on with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acacia written by Aide Matheson and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acacia: Characteristics, Distribution and Uses opens with a chapter describing the wood of A. melanoxylon grown in Portugal in view of determining its technological quality for use in the construction and furniture industry. The characterization includes stem features, wood anatomical characteristics, chemical composition, wood density and mechanical properties.Next, the authors aim to describe and analyze common characteristics among Acacia s.l. species and to trace some parallelisms of their performance throughout several ecosystems that hold such species. It is well-known that Acacia s.l. species have the ability to fix atmospheric nitrogen and may modify soil chemistry and physics by enabling microorganisms/soil fauna to alter the microhabitat beneath the tree, and such characteristics are significant in the recovery of ecosystems.The potential of Acacia mangium, an exotic species, for restoration of a degraded land in Mt. Makiling Forest Reserve (MMFR), Philippines was also examined. Results suggested a general trend of changes in A. mangium plantation which was once a grassland dominated by Imperata cylindrica and Saccharum officinarum. Both (stems ha-1) and basal area (m2 ha-1) increased significantly in 2010-2018 (P=0.001).The authors discuss the way in which NMR spectroscopy applied to the study of gum exudates has become important since the 1990̍s in Venezuela. Analytical and structural studies of 23 species belonging to different genera and families have been reported through the combination of classic methodology for carbohydrates and NMR spectroscopy.The footprints left by evolution in the distribution of characters among current organisms have been one of the main tools in the study of organic evolution. The authors propose that the reconstruction of ancestral character states offers the possibility of knowing the changes suffered by characters in a species throughout evolutionary time.Pollinosis, also known as pollen allergy, hay fever or seasonal allergic rhinitis is one the most common respiratory disorders throughout the world. The inhalation of Acacia pollen is one of the main causes of respiratory allergic diseases in semiarid countries such as Iran, Saudi Arabia, and the United Arab Emirates. This book suggests that the recognition of allergenic components of pollens is essential for component-resolved diagnosis, the design of patient-specific immunotherapy, and the explanation of sensitization mechanisms to various allergens.The authors analyze Acacia-Pseudomyrmex mutualism which includes 15 species of acacias and a group of 10 species of mutualistic ants whose geographical distribution is similar. This relationship is frequently cited as an example of coevolution, a term that has been used to refer to the reciprocal change of interacting species where each of them acts as an agent of natural selection with respect to the other and where the reciprocal selection would result in congruent phylogenies.The concluding chapter characterizes the A. melanoxylon wood pulping performance regarding yield and kappa number as well as the pulp and paper properties. The application of fast spectroscopic technologies for pulp quality determination is also described.
Download or read book Tapirs written by Daniel M. Brooks and published by IUCN. This book was released on 1997 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Descended from a long and ancient lineage, tapirs are important tropical forest seed dispersers. However, today, all species of tapirs are threatened to various degrees by habitat destruction and hunting. This action plan was written with wildlife biologists, ecologists, administrators, educators and local conservation officials in mind and is aimed at those countries with tapir populations. It provides a brief natural history of each species and its objective is to aid in their conservation by catalyzing conservation action. In addition, it is hoped that the contents of the plan will stimulate further research into this fascinating group of animals.
Download or read book Tree Disease Concepts written by Paul D. Manion and published by Prentice Hall. This book was released on 1981 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abiotic agents of tree diseases; Biotic agents of tree diseases; Overview aspects of tree disiases.
Download or read book Pulping the South written by Ricardo Carriere and published by Zed Books. This book was released on 1996-08-15 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: The expansion of the pulp and paper industry is one of the most important causes of land and water conflicts in the South. This book examines the threat to livelihood, soil and biodiversity generated by large-scale pulpwood plantations in the South.
Download or read book Land Use Analysis written by and published by . This book was released on 1962 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A New Reference Grammar of Modern Spanish written by John Butt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 533 pages. Available in PDF, EPUB and Kindle. Book excerpt: (abridged and revised) This reference grammar offers intermediate and advanced students a reason ably comprehensive guide to the morphology and syntax of educated speech and plain prose in Spain and Latin America at the end of the twentieth century. Spanish is the main, usually the sole official language of twenty-one countries,} and it is set fair to overtake English by the year 2000 in numbers 2 of native speakers. This vast geographical and political diversity ensures that Spanish is a good deal less unified than French, German or even English, the latter more or less internationally standardized according to either American or British norms. Until the 1960s, the criteria of internationally correct Spanish were dictated by the Real Academia Espanola, but the prestige of this institution has now sunk so low that its most solemn decrees are hardly taken seriously - witness the fate of the spelling reforms listed in the Nuevas normas de prosodia y ortograjia, which were supposed to come into force in all Spanish-speaking countries in 1959 and, nearly forty years later, are still selectively ignored by publishers and literate persons everywhere. The fact is that in Spanish 'correctness' is nowadays decided, as it is in all living languages, by the consensus of native speakers; but consensus about linguistic usage is obviously difficult to achieve between more than twenty independent, widely scattered and sometimes mutually hostile countries. Peninsular Spanish is itself in flux.
Download or read book Field Guide to the Birds of Chile written by Daniel E. Martínez Piña and published by Bloomsbury Publishing. This book was released on 2021-03-04 with total page 623 pages. Available in PDF, EPUB and Kindle. Book excerpt: The definitive guide to the birds of Chile. With its diverse range of habitats, Chile is one of the top birding destinations in South America and supports an interesting range of breeding and visiting birds, including the Chilean Tinamou, Juan Fernandez Firecrown and a number of other endemic species. This comprehensive field guide covers all of the species recorded in Chile, including vagrants; all are illustrated in superb detail, and feature every major plumage variation. Concise species accounts describe key identification features, status, range, habitat and voice, and accurate distribution maps are also provided for every species. Together, these elements make this the essential field guide to the birds of this fascinating and beautiful region.
Download or read book Forest management and the impact on water resources written by García Chevesich, Pablo and published by UNESCO Publishing. This book was released on 2017-04-24 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trees have been around for more than 370 million years, and today there are about 80 thousand species of them, occupying 3.5 billion hectares worldwide, including 250 million ha of commercial plantations. While forests can provide tremendous environmental, social, and economic benefits to nations, they also affect the hydrologic cycle in different ways. As the demand for water grows and local precipitation patterns change due to global warming, plantation forestry has encountered an increasing number of water-related conflicts worldwide. This document provides a country-by-country summary of the current state of knowledge on the relationship between forest management and water resources. Based on available research publications, the Editor-in-Chief of this document contacted local scientists from countries where the impact of forest management on water resources is an issue, inviting them to submit a chapter.
Download or read book The Physical Geography of South America written by Thomas T. Veblen and published by Oxford University Press. This book was released on 2015-12-01 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Physical Geography of South America, the eighth volume in the Oxford Regional Environments series, presents an enduring statement on the physical and biogeographic conditions of this remarkable continent and their relationships to human activity. It fills a void in recent environmental literature by assembling a team of specialists from within and beyond South America in order to provide an integrated, cross-disciplinary body of knowledge about this mostly tropical continent, together with its high mountains and temperate southern cone. The authors systematically cover the main components of the South American environment - tectonism, climate, glaciation, natural landscape changes, rivers, vegetation, animals, and soils. The book then presents more specific treatments of regions with special attributes from the tropical forests of the Amazon basin to the Atacama Desert and Patagonian steppe, and from the Atlantic, Caribbean, and Pacific coasts to the high Andes. Additionally, the continents environments are given a human face by evaluating the roles played by people over time, from pre-European and European colonial impacts to the effects of modern agriculture and urbanization, and from interactions with El Niño events to prognoses for the future environments of the continent.
Download or read book Evolutionary Biogeography written by Juan Morrone and published by Columbia University Press. This book was released on 2009 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Rather than favoring only one approach, Juan J. Morrone proposes a comprehensive treatment of the developments and theories of evolutionary biogeography. Evolutionary biogeography uses distributional, phylogenetic, molecular, and fossil data to assess the historical changes that have produced current biotic patterns. Panbiogeography, parsimony analysis of endemicity, cladistic biogeography, and phylogeography are the four recent and most common approaches. Many conceive of these methods as representing different "schools," but Morrone shows how each addresses different questions in the various steps of an evolutionary biogeographical analysis. Panbiogeography and parsimony analysis of endemicity are useful for identifying biotic components or areas of endemism. Cladistic biogeography uses phylogenetic data to determine the relationships between these biotic components. Further information on fossils, phylogeographic patterns, and molecular clocks can be incorporated to identify different cenocrons. Finally, available geological knowledge can help construct a geobiotic scenario that may explain how analyzed areas were put into contact and how the biotic components and cenocrons inhabiting them evolved. Morrone compares these methods and employs case studies to make it clear which is best for the question at hand. Set problems, discussion sections, and glossaries further enhance classroom use."--Publisher's description.
Download or read book Latin American Dendroecology written by Marín Pompa-García and published by Springer Nature. This book was released on 2020-03-14 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Latin America is a megadiverse territory hosting several hotspots of plant diversity and many types of forest biomes, ecosystems and climate types, from tropical rainforest to semi-arid woodlands. This combination of diverse forests and climates generates multiple responses to ecological changes affecting the structure and functioning of forest ecosystems. Recently, there have been major efforts to improve our understanding of such impacts on ecosystems processes. However, there is a dearth of studies focused on Latin-American forest ecosystems that could provide novel insights into the patterns and mechanisms of ecological processes in response to environmental stress. The abundance of “New World” tree species with dendrochronological potential constitutes an ideal opportunity to improve the ecological state of knowledge regarding these diverse forest types, which are often threatened by several impacts such as logging or conversion to agricultural lands. Thus, detailed information on the dendroecology of these species will improve our understanding of forests in the face of global change. Accordingly, this book identifies numerous relevant ecological processes and scales, ranging from tree species to populations and communities, and from both dendrochronological and dendroecological perspectives. It offers a valuable reference guide for the exploration of long-term ecological interactions between trees and their environmental conditions, and will foster further research and international projects on the continent and elsewhere.
Download or read book The Andes written by Onno Oncken and published by Springer Science & Business Media. This book was released on 2006-11-22 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the first comprehensive overview of a complete subduction orogen, the Andes. To date the results provide the densest and most highly resolved geophysical image of an active subduction orogen.
Download or read book Fresh Tracks in the Forest Assessing Incipient Payments for Environmental Services Initiatives in Bolivia written by Nina Robertson and published by CIFOR. This book was released on 2005-01-01 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Payments for Environmental Services (PES) are being considered worldwide with great interest and expectation. Proposals to create agreements in which beneficiaries of environmental services pay landowners directly for the provision or protection of these services are innovative and promising. But what real PES experiences are actually out there? This work assesses a range of PES or PES-type experiences in one country, Bolivia, in the fields of carbon sequestration, protection of watershed services, biodiversity and aesthetic landscape values. The report concludes that while none of the generally young initiatives adhere fully to the principle of PES as developed in the theoretical literature, many experiment with some of the relevant PES mechanisms. Protection of watersheds and landscape values are the most common types, though the implementing intermediaries often have underlying biodiversity-protection goals. Main obstacles to PES implementation include ideological resistance against the PES concept, the difficulty of building trust between buyers and sellers, and limited willingness to pay on behalf of service users. During their relatively short lifetime, basically all initiatives had been successful in making service sellers (PES recipients) better off in economic terms, while the effectiveness in achieving environmental objectives and securing positive social impacts so far remained more variable. In some cases, redesigning these initiatives to bring them closer to the full PES principles could also enable them to more effectively achieve positive environmental and livelihood outcomes.
