Download or read book Habitats Flora Mammals and Wasps of Gebel Uweinat Libyan Desert written by Dale J. Osborn and published by . This book was released on 1969 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Habitats Flora Mammals and Wasps of Gebel Uweinat Libyan Desert written by Dale J. Osborn and published by . This book was released on 1969 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The habitats at Gebel 'Uweinat, Libyan Desert, at the juncture of Egypt, Libya, and Sudan, are described and illustrated by photographs. Annotated lists are presented of the 55 species of plants collected there, 6 species of mammals, and 30 species of wasps.

Download or read book The Vegetation of Egypt written by M.A. Zahran and published by Springer Science & Business Media. This book was released on 2008-11-23 with total page 451 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an attempt to compile and integrate the information documented by many botanists, both Egyptians and others, about the vegetation of Egypt. The ? rst treatise on the ? ora of Egypt, by Petrus Forsskal, was published in 1775. Records of the Egyptian ? ora made during the Napoleonic expedition to Egypt (1778–1801) were provided by A. R. Delile from 1809 to 1812 (Kassas, 1981). The early beginning of ecological studies of the vegetation of Egypt extended to the mid-nineteenth century. Two traditions may be recognized. The ? rst was general exploration and survey, for which one name is symbolic: Georges-Auguste Schweinfurth (1836–1925), a German scientist and explorer who lived in Egypt from 1863 to 1914. The second tradition was ecophysiological to explain the plant life in the dry desert. The work of G. Volkens (1887) remains a classic on xeroph- ism. These two traditions were maintained and expanded in further phases of e- logical development associated with the establishment of the Egyptian University in 1925 (now the University of Cairo). The ? rst professor of botany was the Swedish Gunnar Tackholm (1925–1929). He died young, and his wife Vivi Tackholm devoted her life to studying the ? ora of Egypt and gave leadership and inspiration to plant taxonomists and plant ecologists in Egypt for some 50 years. She died in 1978. The second professor of botany in Egypt was F. W.

Download or read book Ecophysiology of Economic Plants in Arid and Semi Arid Lands written by Gerald E. Wickens and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with arid and semi-arid environments and their classification, and the physiological restraints and adaptations of plants to the environment. Further, it discusses economic botany and the needs and methods of conserving economic plants. A broad view is taken regarding the definition of economic plants, taking into account their value to the environment as well as to man and to livestock. The individual deserts and associated semi-arid regions are described in separate chapters, providing background information on the regional environments in terms of climate and major plant formations. The economic plants within these formations, their usages, geographical distribution together with their morphological and physiological adaptations are treated in detail.

Download or read book Rodents in Desert Environments written by I. Prakash and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Evolution of Desert Adaptations. 190 A Comparison of Behavior Patterns. . 196 A Comparison of Behavior Patterns in: Meriones, Gerbillus and Perognathus . . . . . 210 Spacing and Communication 217 Acknowledgements 221 References . . . . . . . . 221 XI. Activity Patterns ofa Desert Rodent by N. R. FRENCH 225 Introduction . . . . . . . . . . . . . . . 225 Methods. . . . . . . . . . . . . . . . . 226 The Microdosimeter and the Index of Activity. 227 Variation in Activity. . . . . . . . . . . . 229 Climatological Variables and Animal Activity . 229 Analysis . 232 Discussion 237 Summary 238 References 239 XII. Patterns of Food, Space and Diversity by M. L. ROSENZWEIG, BARBARA SMIGEL & A. KRAFT. 241 Introduction . . . . . . . . . . . 241 Resource Allocation by Seed Selection 242 Habitat Selection in Space . . . . . 251 The Pattern of Local Species Diversity 260 Acknowledgements 266 References . . . . . . . . . . . . 266 XIII. Desert Coloration in Rodents by D. L. HARRISON. 269 Introduction . . . 269 Desert Coloration . 269 Acknowledgements 275 References . . . . 275 XIV. The Biology of so:me Desert-Dwelling Ground Squ- rels by A. C. HA WBECKER . 277 Introduction . 277 Reproduction. . . . . . 279 Food Habits . . . . . . 288 Population Characteristics 294 Habitat Factors . 297 References . . . . . . . 302 IX xv. Reproductive Biology of North ADlerican Desert Rodents by H. D. SMITH & C. D. JORGENSEN. 305 Introduction . . . . . . . . . . . . . 305 Reproductive Biology: Species Summaries. . . 308 References . . . . . . . . . . . . . . . . 328 XVI. Rodent Faunas and EnvironDlental Changes in the Pleistocene of Israel by E. TCHERNOV . . . . . . . 331 Introduction . . . . . . . . . . . . . . . . . . . 331 The Main Biogeographical Changes in the Near-East since the Miocene . . . . . . . . . . . . . . . . . . . 331 The Composition of the Rodents Faunas in the Pleistocene of Israel . . . . . . . . . . . . . . . . . . . . . 336 The Main Ecological Changes in the Quarternary of Israel . . . . . . . . . . . . . . . . . . . . . .

Download or read book Antelopes written by David P. Mallon and published by IUCN. This book was released on 2001 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: Antelope herds numbering in the tens of thousands formerly occurred across the steppes and semideserts of Eurasia and India, but these have nearly all been reduced to fractions of their earlier size; antelope populations are now fragmented across the region, and during recent decades several species have disappeared altogether. Threats include hunting, loss of habitat, population fragmentation, inadequate protected area coverage, poorly-developed administrative structures, under-resourcing of conservation programmes, and lack of enforcement of existing legislation. Rising human population growth and economic development constantly increases pressure on land and natural resources. There is a consequent need for integrated rural development, and community-based conservation projects, which have the full participation of local people at the planning and execution stages.This publication, Part 4 of the Global Antelope Survey, covers 37 countries in the region, and actions to conserve antelope populations are listed in each country report.

Download or read book Insects written by and published by . This book was released on 1972 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Notes on Some Stomatopod Crustacea from Southern Africa written by Raymond Brendan Manning and published by . This book was released on 1969 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department of the Interior and Related Agencies Appropriations for Fiscal Year 1970 written by United States. Congress. Senate. Committee on Appropriations and published by . This book was released on 1969 with total page 2036 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by United States. Superintendent of Documents and published by . This book was released on 1966 with total page 1464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1969 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department of the Interior and Related Agencies Appropriations for 1970 Testimony of members of Congress and other interested individuals and organizations written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 1969 with total page 1702 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Department of the Interior and Related Agencies Appropriations for 1970 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of the Interior and Related Agencies and published by . This book was released on 1969 with total page 1340 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Agricultural Library Catalog written by National Agricultural Library (U.S.) and published by . This book was released on 1972 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sahara Desert written by J. L. Cloudsley-Thompson and published by Pergamon. This book was released on 1984 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first in a series of titles providing scientifically accurate, concise and well-illustrated accounts of major environments which are, or soon will be, under threat. This volume provides a vivid picture of the world's grandest and most awe-inspiring desert, the Sahara. Much of it man-made, mostly of comparatively recent origin, it is today expanding inexorably into the Sahel savanna bordering its southern flanks. Whether geographer, meteorologist, geologist, botanist, zoologist, sociologist or anthropologist no true scientist can fail to respond to the intellectual problems that emerge from the study of this immense zone of desolation, or to the exciting ideas that it generates.

Download or read book Monthly Catalog of United States Government Publications Cumulative Index written by United States. Superintendent of Documents and published by . This book was released on 1979 with total page 1504 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Israel Journal of Zoology written by and published by . This book was released on 2000 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: