Landscape Ecology Of Tl Loc And Pelado Volcanoes Mexico
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Landscape Ecology Of Tl Loc And Pelado Volcanoes Mexico
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Author : Alejandro Velázquez
language : en
Publisher: Itc
Release Date : 1993-01-01
Landscape Ecology Of Tl Loc And Pelado Volcanoes Mexico written by Alejandro Velázquez and has been published by Itc this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993-01-01 with Landscape ecology categories.
Ecology And Man In Mexico S Central Volcanoes Area
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Author : G.W. Heil
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Ecology And Man In Mexico S Central Volcanoes Area written by G.W. Heil and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
The main activities of the economically active population around The Iztaccíhuatl and Popocatépetl volcanoes region lie in the primary sector (65- 90%). Of the people working in this sector, those dependent on agricultural or pastoral activities generally have an income significantly lower than the minimum wage in Mexico. Of the activities in the area, these agricultural, pastoral, and forestry activities probably have the most direct effect on the ecology of the volcanoes and its immediate surroundings. Traditional farmers, producing crops such as beans, pumpkins and cucumbers, generally work on small fields using traditional methods and animal traction. Modern farming, geared towards intensive production develops on larger sites making use of modern machinery, fertilizers, and pesticides. As the area under agriculture continues to increase every year, the attendant opening of large forested areas, soil modification, and ensuing erosion make it almost impossible for forest recovery. Extensive forestry in the region mainly concerns cutting and collecting wood, cutting Pinus-branches for torches or for utensils for open-fire cooking, collection of mushrooms, and hunting. Although these (often clandestine) activities seem to be small-scale, their adverse effects on the forest have been substantial. Weekend visitors from Mexico City heavily dominate recreation, with tourism concentrated near the roads leading to and inside the park. Lacking organization and facilities, most recreational activities have had significant environmental impact on the area In many countries, the decline of nature has occurred because of changes in land use.
Physiological Ecology Of North American Plant Communities
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Author : Brain F. Chabot
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Physiological Ecology Of North American Plant Communities written by Brain F. Chabot and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Although, as W.D. Billings notes in his chapter in this book. the development of physiological ecology can be traced back to the very beginnings of the study of ecology it is clear that the modern development of this field in North America is due in the large part to the efforts of Billings alone. The foundation that Billings laid in the late 1950s came from his own studies on deserts and subsequently arctic and alpine plants, and also from his enormous success in instilling enthusiasm for the field in the numerous students attracted to the plant ecology program at Duke University. Billings' own studies provided the model for subsequent work in this field. Physiological techniques. normally confined to the laboratory. were brought into the field to examine processes under natural environmental conditions. These field studies were accompanied by experiments under controlled conditions where the relative impact of various factors could be assessed and further where genetic as opposed to environmental influences could be separated. This blending of field and laboratory approaches promoted the design of experiments which were of direct relevance to understanding the distribution and abundance of plants in nature. Physiological mechanisms were studied and assessed in the context of the functioning of plants under natural conditions rather than as an end in itself.
Urban Air Pollution And Forests
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Author : Mark E. Fenn
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Urban Air Pollution And Forests written by Mark E. Fenn and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
At present, roughly half of the world's population lives in urban centers. There are now more than 20 cities with a population of over 10 million inhabitants, compared to less than 5 about 50 years ago. This tendency toward urbanization is expected to continue, particularly in the developing world. A consequence of this growing trend is that millions of people are being exposed to harmful levels of urban air pollutants caused mainly by emissions from motor vehicles and from industrial and domestic activities involving the combustion of fossil fuels. The driving force for the design and implementation of emission control strate gies aimed at improving air quality has been the protection of the health of the population in urban centers. There are, however, other consequences of the pres ence of air pollutants besides the direct effect on human health. Reduced visibil ity, damage to monuments and buildings, and many other such consequences indirectly affect our quality of life. Another set of consequences involves damage to ecological systems. In fact, the nature of "photochemical smog" was first uncovered in the 1950s in connection with observations of its harmful effects on crops and plants in the vicinity of Los Angeles.
Multifactor Classification Of Ecological Land Units In Northeastern Lower Michigan
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Author : David Thomas Cleland
language : en
Publisher:
Release Date : 1997
Multifactor Classification Of Ecological Land Units In Northeastern Lower Michigan written by David Thomas Cleland and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Ecology categories.
Ecology
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Author : Charles J. Krebs
language : en
Publisher: Benjamin-Cummings Publishing Company
Release Date : 2001
Ecology written by Charles J. Krebs and has been published by Benjamin-Cummings Publishing Company this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Science categories.
This best-selling majors ecology book continues to present ecology as a series of problems for readers to critically analyze. No other text presents analytical, quantitative, and statistical ecological information in an equally accessible style. Reflecting the way ecologists actually practice, the book emphasizes the role of experiments in testing ecological ideas and discusses many contemporary and controversial problems related to distribution and abundance. Throughout the book, Krebs thoroughly explains the application of mathematical concepts in ecology while reinforcing these concepts with research references, examples, and interesting end-of-chapter review questions. Thoroughly updated with new examples and references, the book now features a new full-color design and is accompanied by an art CD-ROM for instructors. The field package also includes The Ecology Action Guide, a guide that encourages readers to be environmentally responsible citizens, and a subscription to The Ecology Place (www.ecologyplace.com), a web site and CD-ROM that enables users to become virtual field ecologists by performing experiments such as estimating the number of mice on an imaginary island or restoring prairie land in Iowa. For college instructors and students.
Indigenous Knowledge For Climate Change Assessment And Adaptation
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Author : Nakashima, Douglas
language : en
Publisher: UNESCO Publishing
Release Date : 2018-12-31
Indigenous Knowledge For Climate Change Assessment And Adaptation written by Nakashima, Douglas and has been published by UNESCO Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-31 with Education categories.
This unique transdisciplinary publication is the result of collaboration between UNESCO's Local and Indigenous Knowledge Systems (LINKS) programme, the United Nations University's Traditional Knowledge Initiative, the IPCC, and other organisations
Traditional Knowledge In Policy And Practice
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Author : Suneetha M. Subramanian
language : en
Publisher:
Release Date : 2010
Traditional Knowledge In Policy And Practice written by Suneetha M. Subramanian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Community development categories.
Traditional knowledge (TK) has contributed immensely to shaping development and human well-being. Its influence spans a variety of sectors, including agriculture, health, education and governance. However, in today's world, TK and its practitioners are increasingly underrpresented or under-utilized. Further, while the applicability of TK to human and environmental welfare is well-recognized, collated information on how TK contributes to different sectors is not easily accessible. --
Standards And Thresholds For Impact Assessment
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Author : Michael Schmidt
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-03-04
Standards And Thresholds For Impact Assessment written by Michael Schmidt and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008-03-04 with Law categories.
Standards and Thresholds play an important role in many stages of the Environmental Impact Assessment (EIA) process. They can be legally binding or guidance values and are linked to environmental data. This book provides a comprehensive collection of standards and thresholds, with their derivation and application in case studies of EIA projects. The text introduces key drivers of standards, their effect on environment and health, emerging issues and more.
Carabid Beetles Ecology And Evolution
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Author : K. Desender
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Carabid Beetles Ecology And Evolution written by K. Desender and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Science categories.
The Carabidae form one of the largest and best studied families of insects, occurring in nearly every terrestrial habitat. The contributions included in this book cover a broad spectrum of recent research into this beetle family, with an emphasis on various aspects of ecology and evolution. They deal both with individual carabid species, for example in studies on population and reproductive biology or life history in general, and with ground beetle communities, as exemplified in papers treating assemblages in natural habitats, on agricultural land and in forests. Disciplines range from biogeography and faunistics, over morphology, taxonomy and phylogenetics, ecophysiology and functional ecology, to population, community, conservation and landscape ecology. This volume is the result of the 8th European Carabidologists' Meeting, 2nd International Symposium of Carabidology, September 1-4, 1992, Belgium.