Libros de Ecología y Medio ambiente, página 22 de 277

Un libro que es preciso conocer ya que aborda uno de los problemas más graves que produjo el siglo XX: la contaminación que sufre la Tierra.Primavera silenciosa (1962), de la bióloga marina y zoóloga estadounidense Rachel Louise Carson (1907-1964), es un libro que es preciso conocer ya que aborda uno de los problemas mas graves que produjo el siglo XX: la contaminacion que sufre la Tierra. Utilizando un lenguaje transparente, el rigor propio del mejor analisis cientifico y ejemplos estremecedores, Carson denuncio los efectos nocivos que para la naturaleza tenia el empleo masivo de productos quimicos como los pesticidas, el DDT en particular. Se trata, por consiguiente, de un libro de ciencia que va mas alla del universo cientifico para adentrarse en el turbulento mundo de "lo social". Su trascendencia fue tal que hoy esta considerado uno de los principales responsables de la aparicion de los movimientos ecologistas a favor de la conservacion de la naturaleza. De hecho,Primavera silenciosa consiguio lo que pocos textos cientificos logran: iluminar nuestros conocimientos de procesos que tienen lugar en la naturaleza y despertar el interes de la sociedad tanto por la ciencia que es necesaria para comprender lo que sucede en nuestro planeta, como por la situacion presente y futura de la vida que existe en el.

This is an updated version of the best selling first edition, Ecological Census Techniques, with updating, some new chapters and authors. Almost all ecological and conservation work involves carrying out a census or survey. This practically focussed book describes how to plan a census, the practical details and shows with worked examples how to analyse the results. The first three chapters describe planning, sampling and the basic theory necessary for carrying out a census. In the subsequent chapters international experts describe the appropriate methods for counting plants, insects, fish, amphibians, reptiles, mammals and birds. As many censuses also relate the results to environmental variability, there is a chapter explaining the main methods. Finally, there is a list of the most common mistakes encountered when carrying out a census.

Given the importance of interdisciplinary work in sustainability, Simulation of Ecological and Environmental Models introduces the theory and practice of modeling and simulation as applied in a variety of disciplines that deal with earth systems, the environment, ecology, and human-nature interactions. Based on the author's many years of teaching graduate and undergraduate students in the United States, Spain, and Latin America, the textbook shows how to implement simulations and analyze the results using an open-source software platform. Learn How to Use a Broad Range of Environmental Models The textbook is organized into three parts to allow greater flexibility using the material in various countries and types of curricula. The first part provides a tutorial-style mathematical review and a gentle introduction to the basics of R software. The second part explains the fundamentals of modeling methodology through one-dimensional models. After a review of matrix algebra, the third part progresses to multidimensional models, focusing on structured populations, communities, and ecosystems. The final chapters show how simple models are hooked together to generate more comprehensive models. Build from Fundamental Concepts to Problem Solving Each chapter starts with conceptual and theoretical material to give a firm foundation in how the methods work. Examples and exercises illustrate the applications and demonstrate how to go from concepts to problem solving. Hands-on computer sessions let students grasp the practical implications and learn by doing. Throughout, the computer examples and exercises use seem, an open-source R package developed by the author, which lets students quickly produce simulations and explore the effects of changing conditions in the model. This practical book is a comprehensive, unified presentation of ecological and environmental models. It describes the mathematical fundamentals to analyze models and the methodology to simulate them, with a focus on understanding environmental change-a key element of environmental management and problem solving.

La riqueza más importante de la Tierra es la calidad que tenemos los humanos que la habitamos pero, preferentemente, la que posee su niñez, de ahí que para aumentar su cuantía, tengamos que hacer el esfuerzo descomunal como familia, pais y sociedad a fin