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Plants are not just a pretty part of the landscape; they keep the entire planet, with all of its human and nonhuman inhabitants, alive. Stanley Rice documents the many ways in which plants do this by making oxygen, regulating the greenhouse effect, controlling floods, and producing all the food in the world. Plants also create natural habitats for all organisms in the world. With illustrations and clear writing for non-specialists, Green Planet helps general readers realize that if we are to rescue the Earth from environmental disaster, we must protect wild plants. Beginning with an overview of how human civilization has altered the face of the Earth, particularly by the destruction of fores...
In recent years an increasing number of studies have been published reporting observations of adapted behaviour and shifting species ranges of plant and animal species due to recent climate warming. Are these `fingerprints' of climate change? An international conference was organised to bring together scientists from different continents with different expertise but sharing the same issue of climate change impact studies. Ecologists, zoologists, and botanists exchanged and discussed the findings from their individual field of research. The present book is an international collection of biological signs of recent climate warming, neither based only on computer models nor on prediction for the future, but mainly on actually occurring changes in the biosphere such as adapted behaviour or shifts in the ranges of species. `Fingerprints' of Climate Change presents ecological evidence that organisms are responding to recent global warming. The observed changes may foreshadow the types of impacts likely to become more frequent and widespread with continued warming.
Se trata del trabajo más completo sobre la flora y la vegetación de los campos de cultivo, las cunetas, las vías de comunicación, los descampados, los márgenes de campos, etc., de la provincia de Huesca (Aragón, España). Incluye la descripción del paisaje vegetal de la provincia; un completo y exhaustivo catálogo de las flora arvense y ruderal; otro sobre este tipo de vegetación con inventarios fitosociológicos. Le sigue un capítulo dedicado al neofitismo y al xenofitismo. Continua con otro dedicado a la erosión genética de la flora arvense y sobre la sectorización biogeográfica teniendo en cuenta la flora arvense y ruderal. Finaliza con las conclusiones, la bibliografía y el índice de familias y géneros.
Praise for the previous edition: "...make[s] high-level scientific concepts accessible to secondary students."—Library Journal "...clearly written and well organized..."—School Library Journal "Fulfilling educational benchmarks identified by the National Academy of Sciences, this encyclopedia is an excellent choice for both public and academic libraries. Recommended."—Choice "...a thorough and informative work...provide[s] accessible information...There is simply no other work that compares to this...High-school and public libraries will welcome such a well-researched title..."—Booklist "The text is suitable for high school students but advanced enough for adult readers, too...presen...
Buciegas, municipio de la Alcarria conquense, es uno de esos lugares que muchos creen sin historia. Nunca superó los 500 habitantes. No ocurrió en él ningún hecho famoso ni nació allí ninguno de los personajes que pueblan nuestros libros. Sin embargo, fueron estos pueblos los que sirvieron de base económica y demográfica a un país de economía claramente rural hasta bien entrado el siglo XX. El autor ha querido estudiar aquí la historia de un pueblo español, poniéndolo en su contexto comarcal y regional, mostrando su evolución, y recuperando la memoria de los hombres y mujeres que lo habitaron, porque, como diremos una vez más, no existen los pueblos sin historia