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The Biology Of Deserts

Author: David Ward
Publisher: Oxford University Press
ISBN: 0199211469
Size: 31.20 MB
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This book offers a concise but comprehensive introduction to desert ecology. As with other titles in the Biology of Habitats Series, the emphasis in this book is on the organisms that dominate this harsh environment, although pollution, conservation and experimental aspects are also considered.

The Biology Of Peatlands 2e

Author: Håkan Rydin
Publisher: OUP Oxford
ISBN: 0191508292
Size: 44.19 MB
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Peatlands form important landscape elements in many parts of the world and play significant roles for biodiversity and global carbon balance. This new edition has been fully revised and updated, documenting the latest advances in areas such as microbial processes and relations between biological processes and hydrology. As well as thoroughly referencing the latest research, the authors expose a rich older literature where an immense repository of natural history has accumulated. The Biology of Peatlands starts with an overview of the main peatland types (marsh, swamp, fen, and bog), before examining the entire range of biota present (microbes, invertebrates, plants, and vertebrates), together with their specific adaptations to peatland habitats. Detailed coverage is devoted to the genus Sphagnum, the most important functional plant group in northern peatlands, although tropical and southern hemisphere peatlands are also covered. Throughout the book the interactions between organisms and environmental conditions (especially wetness, availability of oxygen, and pH) are emphasized, with chapters on the physical and chemical characteristics of peat, the role of peat as an archive of past vegetation and climate, and peatland succession and development. Several other key factors and processes are then examined, including hydrology and nutrient cycling. The fascinating peatland landforms in different parts of the world are described, together with theories on how they have developed. Human interactions with peatlands are considered in terms of management, conservation, and restoration. A final chapter, new to this edition, focuses on the role of peatlands as sources or sinks for the greenhouse gases carbon dioxide and methane, and the influences of climate change on peatlands. This timely and accessible text is suitable for students and researchers of peatland ecology, as well as providing an authoritative overview for professional ecologists and conservation biologists.

Dispersal Biology Of Desert Plants

Author: Karen van Rheede van Oudtshoorn
Publisher: Springer Science & Business Media
ISBN: 9783540648864
Size: 47.34 MB
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Dispersal processes have important effects on plant distribution and abundance. Although adaptations to long range dispersal (telechory) are by no means rare in desert plants, many desert plant species do not possess any features to promote dispersal (atelechory), while others have structures that hamper dispersal (antitelechory). The high frequency with which atelechorous and antitelechorous mechanisms are present in plants inhabiting arid areas indicates the importance of these adaptations. Among the benefits derived from these adaptations are the spreading of germination over time, the provision of suitable conditions for germination and subsequent seedling establishment, and the maintenance of a reservoir of available seeds (seed bank). This book describes the ways and means - anatomical, morphological and ecological - by which dispersal in desert plants has evolved to ensure the survival of these species in their harsh and unpredictable environment.

Backyard Biology

Author: Donna Latham
Publisher: Nomad Press
ISBN: 1619301547
Size: 34.12 MB
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BIOLOGY IS THE STUDY OF LIFE Life is everywhere, thriving in the city and in the country, teeming in ecosystems around the planet—in deserts, oceans, and even the Arctic. And life is right outside your door! Backyard Biology invites children ages 9 and up to investigate living things—especially in yards, parks, nature areas, and playgrounds. Trivia and fun facts bring animals, plants, and microorganisms to life, in all their wonder. Readers become Nature Detectives with activities and projects that encourage children to make discoveries. Children will construct a plankton net to collect pond samples, and they’ll grow microorganisms in a Winogradsky Column. They’ll discover what mystery plants sprout from collected soil samples and build a rolypoly habitat. When children experiment with phototropism and geotropism, they'll discover the ways plants move. In Backyard Biology, children will scout out different habitats to observe and investigate—and do their part to protect them.

Biology Of Desert Invertebrates

Author: C. S. Crawford
Publisher: Springer Science & Business Media
ISBN: 3642857949
Size: 16.44 MB
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What little we know of the biology of desert invertebrates stems largely from inferences based on intensive and repeated observations. Such informa tion is not gained easily, since despite the actual abundance of these animals, relatively few of them are ever seen. In fact, except for species impacting on the well-being of human populations, historically most have been ignored by scholars in the western world. Indeed, it was ancient Egypt, with its reverence for the symbolism of the scarab, that probably provided us with the clearest early record of prominent desert types. A more modest resurgence of the story had to wait until the arrival of the present century. To be sure, some of the more obvious species had by then been elevated by European collectors to the level of drawing-room curios ities, and expeditions had returned large numbers to museums. But by 1900 the task of describing desert species and relationships among them was still in its infancy; and as for careful natural history studies, they too were just coming into their own.

Desert Biology

Author: G. W. Brown
Publisher: Elsevier
ISBN: 1483216632
Size: 56.28 MB
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Desert Biology: Special Topics on the Physical and Biological Aspects of Arid Regions, Volume II records the conditions and life in the arid regions of the world. This book discusses the hydrogeology of arid regions, desert soil surfaces and classes, and physical and vegetational aspects of the Sahara Desert. The Piman Indians of the Sonoran Desert, approach to the water relations of desert plants, desert arthropods, and aquatic environments of deserts are also considered. Other topics include the artificial changes in the hydrogeology of deserts, soils of individual world deserts, rainfall and water supply of desert plants, and ecological plant types in arid regions. The hydrature in true xerophytes, chloride accumulation in halophytes, and biological response to desert water conditions are likewise covered in this publication. This volume is recommended for researchers and specialists interested in the hot, dry regions of the planet.

Biology And Conservation Of North American Tortoises

Author: David C. Rostal
Publisher: JHU Press
ISBN: 1421413787
Size: 11.66 MB
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Tortoises, those unmistakable turtles, evolved from a lineage that split off from the familiar pond turtles roughly 100 million years ago. Over time, these plant-eating land turtles spread around the world, growing to an enormous size (depending on the species) and living so long that they have become the stuff of legends. By most accounts, they are indeed the longest-lived of the turtles, with good records suggesting individuals may live as long as 180 years (anecdotal records suggest that some reach ages of 200 years or more). Providing the first comprehensive treatment of North America’s tortoises, Biology and Conservation of North American Tortoises brings together leading experts to give an overview of tortoise morphology, taxonomy, systematics, paleontology, physiology, ecology, behavior, reproduction, diet, growth, health, and conservation. The contributors carefully combine their own expertise and observations with results from studies conducted by hundreds of other researchers. The result is a book that belongs in the library of every herpetologist. ContributorsGustavo Aguirre L.Linda J. AllisonMatthew J. ArescoRoy C. Averill-MurrayJoan E. BerishKristin H. BerryDennis M. BrambleK. Kristina DrakeTaylor EdwardsTodd C. EsqueRichard FranzCraig GuyerJ. Scott HarrisonSharon M. HermannJ. Howard HutchisonElliott R. JacobsonValerie M. JohnsonRichard T. KazmaierEarl D. McCoyPhilip A. MedicaRobert W. MurphyHenry R. Mushinsky Kenneth E. NussearMichael P. O’ConnorThomas A. Radzio David C. RostalLora L. SmithJames R. SpotilaCraig B. StanfordC. Richard TracyTracey D. TubervilleMichael TumaThane Wibbels