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Author : Kenneth Walton
Publisher : Transaction Publishers
ISBN 13 : 0202369471
Total Pages : 178 pages
Book Rating : 4.2/5 (23 download)
Download or read book The Arid Zones written by Kenneth Walton and published by Transaction Publishers. This book was released on with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hilton Kramer
Publisher : Routledge
ISBN 13 : 135148589X
Total Pages : 175 pages
Book Rating : 4.3/5 (514 download)
Download or read book The Arid Zones written by Hilton Kramer and published by Routledge. This book was released on 2017-07-05 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: The hot and temperate deserts and their marginal steppe lands comprise one-third of the land surface of the world and are an increasingly critical area for the economic wellbeing of world populations. The remarkable mechanisms of floral, faunal, and human adaptation to the distinct and difficult environment of these arid zones, as well as the potential of modern technology for facilitating adaptation, are described and explained by Walton in the light of our most recent knowledge of the phenomena and processes involved.Beginning with a clarification of the definitions of arid and semi-arid regions and with the delineation of techniques for measuring the degree of aridity in these areas, the author shows that there is wide variation among the arid zones in landscape and climate and that there are numerous local and microclimates within any single arid region. The life cycles of the plants and animals of the arid zones are described and the water resources, including problems of salinity, mineral contamination, and the construction of reservoirs, are examined. Extensive treatment is given to potential agricultural adaptations and to pastoralism as the most widespread response to dry land. A final chapter summarizes attempts at adaptation to prevailing drought and discusses the kinds of future development that the author deems most likely in arid zones.Throughout the book emphasis is placed on specific, detailed analysis, with adequate tables and formulas for in-depth understanding of particular aspects of aridity. Examples from both Old and New Worlds are used to demonstrate the spheres in which progress is being made and to show the mistakes in past and present land use in arid areas. An essential supplement for courses in physical geography, the book will be useful in many area studies and in studies of economic development.
Author : Unesco
Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.3/5 (91 download)
Download or read book Arid Zone Research written by Unesco and published by . This book was released on 1963 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 564 pages
Book Rating : 4.:/5 (319 download)
Download or read book Wildlife Review written by and published by . This book was released on 1956 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Charles Hutchinson
Publisher : Routledge
ISBN 13 : 0429722036
Total Pages : 1457 pages
Book Rating : 4.4/5 (297 download)
Download or read book Arid Lands written by Charles Hutchinson and published by Routledge. This book was released on 2019-04-23 with total page 1457 pages. Available in PDF, EPUB and Kindle. Book excerpt: The international conference Arid Lands: Today and Tomorrow drew more than 400 participants from over 3 S countries to Tucson, Arizona, for one week in October of 19 8 S. The diversity of presenters, disciplines and subject matters addressed contributed to an interesting and informative conference. The papers presented in this volume represent the efforts of scientists and other individuals who, through their various disciplines, are addressing the problems of and opportunities presented by the arid lands of the world. A committee of five scientists reviewed for substance. relevance and their contribution to the conference the 284 abstracts that were submitted. They selected 146 for presentation at the conference and of those papers presented, 128 were received for inclusion in the proceedings.
Author :
Publisher :
ISBN 13 :
Total Pages : 838 pages
Book Rating : 4.3/5 (91 download)
Download or read book Ecology written by and published by . This book was released on 1962 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publishes essays and articles that report and interpret the results of original scientific research in basic and applied ecology.
Author : United States. National Commission on Food Marketing
Publisher :
ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.:/5 (319 download)
Download or read book Studies of Organization and Competition in Grocery Manufacturing written by United States. National Commission on Food Marketing and published by . This book was released on 1966 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gary Haynes
Publisher : Cambridge University Press
ISBN 13 : 9780521456913
Total Pages : 430 pages
Book Rating : 4.4/5 (569 download)
Download or read book Mammoths, Mastodonts, and Elephants written by Gary Haynes and published by Cambridge University Press. This book was released on 1991 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study uses the ecology and behaviour of modern elephants to create models for reconstructing the life and death of extinct mammoths and mastodons.
Author : R.M. Sadler
Publisher : Springer Science & Business Media
ISBN 13 : 9401165270
Total Pages : 318 pages
Book Rating : 4.4/5 (11 download)
Download or read book The Ecology of Reproduction in Wild and Domestic Mammals written by R.M. Sadler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: 49 about six months ... to well over a year. If there is only one part of the year that is favourable, such as spring and early summer in the temperate climates, then each species must make an evolutionary choice, so to speak, as to which parts of the reproductive cycle - conception, gestation, lactation or weanin- must be protected and which can come in less favourable times of the year. The rhesus and langur monkeys of northern India give birth during the time of year when temperatures are hottest and wells and tanks are often dry. However, gestation and the later months oflactation come during the monsoon season when food and water are abundant. In contrast the east African baboons give birth at the beginning of the small rains, and gestation and the late part of lactation occur during the six months dry season. Whether any pattern of relationship will be found to hold true for other species of primates is still not clear. It may be that a wide variety of patterns have evolved depending on the lengths of gestation and lactation and the particular ecological complex in which each species or even subspecies lives' (pages 503, 504).
Author : Jean-François Picimbon
Publisher : Springer
ISBN 13 : 3030050602
Total Pages : 253 pages
Book Rating : 4.0/5 (3 download)
Download or read book Olfactory Concepts of Insect Control - Alternative to insecticides written by Jean-François Picimbon and published by Springer. This book was released on 2019-05-16 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evolution gave rise to a prominent insect diversity at every level of ecological niche. Since then, hordes of insects have threatened human and cattle health as well as most of all green lands and agricultural crops. Now, the insect problem expands from many mutant forms of yellow dengue fever mosquitoes to highly-resistant larvae of most all various phytophageous species. The tremendous expansion of insects is due not only to an increasing resistance capacity to insecticides, but also to a strong capacity for adapting to different climate and environmental changes, including global warming. Obviously insects display a number of rudimentary systems to build an extremely efficient organism to survive in a changing world. In many species, one pheromone molecule is enough to trigger mating behavior. Therefore, insects have become crucial models not only for evolutionary studies, but also for understanding specific mechanisms underlying sensory-based behaviors. Most of insect species such as ants, beetles, cockroaches, locusts, moths and mosquitoes largely rely on olfactory cues to explore the environment and find con-specifics or food sources. A conglomerate of renowned international scientific experts is gathered to expose the insect problem on the various continents of the planet and propose an alternative to the use of toxic insecticides. Sex pheromones, specific chemical signals necessary for reproduction, and pheromone detection in insects are described with full details of the olfactory mechanisms in the antennae and higher centers in the brain. Thus, new synthetic pheromones and/or plant odors with specific molecular target sites in the insect olfactory system are proposed for sustainable development in agricultural and entomological industries. Disrupting insect pheromone channels and plant odor detection mechanisms is solemnly envisioned as a unique way to control invasive insect pest species while preserving human and environment safety.
Author : Gary A. Polis
Publisher : University of Arizona Press
ISBN 13 : 0816552452
Total Pages : 470 pages
Book Rating : 4.8/5 (165 download)
Download or read book The Ecology of Desert Communities written by Gary A. Polis and published by University of Arizona Press. This book was released on 2023-01-17 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Provides interesting and thought-provoking reading and is highly recommended to anyone interested in desert ecosystems or community ecology. The book . . . should serve as an inspiration to many for future research."—Journal of Biogeography "This book is not just about deserts; it is an update of the contributions that research in desert systems is making to community ecology. . . This book will provide a useful reference for desert ecologists, as well as indicate critical directions where progress needs to be made."—Ecology "This important book fills a significant gap in previous syntheses by presenting a detailed series of reviews of current understanding of community patterns and structure in desert environments. . . . Each chapter is thorough and well written and . . . closes with a discussion of suggested future research. . . . [T]hese ideas will do much to focus interest on the importance of desert systems in understanding community. Thus, this book has interest well beyond desert ecologists alone."—BioScience "Valuable reading and reference for ecology students, teachers and researchers."—Quarterly Review of Biology
Author : U.S. Fish and Wildlife Service
Publisher :
ISBN 13 :
Total Pages : 346 pages
Book Rating : 4.0/5 ( download)
Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1954 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Library of Congress
Publisher :
ISBN 13 :
Total Pages : 1480 pages
Book Rating : 4.:/5 (1 download)
Download or read book Library of Congress Subject Headings written by Library of Congress and published by . This book was released on 1989 with total page 1480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joseph Ben-David
Publisher : Paris: UNESCO
ISBN 13 :
Total Pages : 168 pages
Book Rating : 4.3/5 (91 download)
Download or read book Agricultural Planning and Village Community in Israel written by Joseph Ben-David and published by Paris: UNESCO. This book was released on 1964 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Department of State
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.3/5 (91 download)
Download or read book International Organization and Conference Series I-IV. written by United States. Department of State and published by . This book was released on 1955 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joseph Henry Frenkiel
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.3/5 (91 download)
Download or read book Evaporation Reduction written by Joseph Henry Frenkiel and published by . This book was released on 1965 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : U.S. National Commission for UNESCO.
Publisher :
ISBN 13 :
Total Pages : 100 pages
Book Rating : 4.:/5 (319 download)
Download or read book UNESCO written by U.S. National Commission for UNESCO. and published by . This book was released on 1955 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
