Invertebrates In Hot And Cold Arid Environments
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Invertebrates In Hot And Cold Arid Environments
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Author : Lauritz Somme
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Invertebrates In Hot And Cold Arid Environments written by Lauritz Somme 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.
A comparison of the adaptations made by invertebrates in polar deserts with those of temperate and subtropical deserts. These regions represent some of the most hostile environments on earth, demanding an array of strategies for survival. Polar species are well adapted to the cold and have to cope with arid conditions due to low precipitation and lack of liquid water during the winter. Similarly, temperate desert invertebrates have adapted to dry conditions and are also exposed to low winter temperatures. Terrestrial arthropods maintain their water-balance through behavioural and physiological adaptations. Tardigrades and nematodes are remarkable in their ability to shed all their water before entering a state of anhydrobiosis only to be revived when moisture once again becomes available.
Energetics Of Desert Invertebrates
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Author : Harold Heatwole
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Energetics Of Desert Invertebrates written by Harold Heatwole 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.
Desert invertebrates live in an environment where resources alternate unpredictably between brief periods of plenty and prolonged scarcity. This book describes the adaptive strategies of desert invertebrates in acquiring energy and sustaining life with such fluctuations. Some cooperate in foraging; others compete for resources. Some are nomadic and migrate to more favorable sites as conditions change. Others conserve energy by going into a deep dormancy until better conditions return. Still others store food during plentiful periods so as to retreat underground during less favorable times. The adaptive modes of economizing on scarce energy resources are diverse and lead to an appreciation of the intricate interactions of animals living close to their environmental limits.
Ecophysiology Of Amphibians Inhabiting Xeric Environments
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Author : Michael Warburg
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Ecophysiology Of Amphibians Inhabiting Xeric Environments written by Michael Warburg 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.
A description of the structural and functional adaptations of the key organs such as skin, kidneys, bladder, lungs and ovaries, with special emphasis placed on physiological adaptations: water, electrolyte, nitrogen, and thermal balance and their endocrine control. One whole chapter devoted to ecological aspects covers such exciting topics as development and metamorphosis, larval competition for food resources, and reproductive strategies.
Ecophysiology Of Economic Plants In Arid And Semi Arid Lands
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Author : Gerald E. Wickens
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
Ecophysiology Of Economic Plants In Arid And Semi Arid Lands written by Gerald E. Wickens 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.
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.
Biotic Interactions In Arid Lands
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Author : John L. Cloudsley-Thompson
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Biotic Interactions In Arid Lands written by John L. Cloudsley-Thompson 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 exigencies of life in the desert environment have resulted in the se lection of a diversity of adaptations, both morphological and physiologi cal, in the flora and fauna. At the same time, many plants and most small animals are able not merely to exist but even to thrive under desert conditions - mainly by avoiding thermal extremes and by the refine ment of pre-existing abilities to economise in water. In the same way, the biotic interactions of the flora and fauna of the desert do not involve many new principles. Nevertheless, conditions in arid regions frequently do invoke refinements of the complex interrelations between predators and their prey, parasites and their hosts, as well as between herbivores and the plants upon which they feed. In this book, I shall discuss not only such interactions and their feedback effects, but also community processes and population dynamics in the desert. The physical conditions of the desert that principally affect predators and their prey are its openness and the paucity of cover. This is re stricted to scattered plants, occasional rocks, holes, and crevices in the ground. Furthermore, nightfall does not confer relative invisibility, as it does in many other ecobiomes, because of the clarity of the atmosphere. The bright starlight of the desert renders nearby objects visible even to the human eye, while an incandescent moon bathes the empty landscape with a flood of silver light. Consequently, adaptive coloration is func tional at all hours of the day and night.
Behavioural Adaptations Of Desert Animals
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Author : Giovanni Costa
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Behavioural Adaptations Of Desert Animals written by Giovanni Costa 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.
After a brief survey of biotopic and vegetational features and an account of the main groups of desert animals, the most unusual patterns of the behaviour of the xerophilous fauna are examined. The importance of the thermohygric regulation and self-protective and locomotor mechanisms to the survival of arid-adapted animals is emphasized and various adaptations in the alimentary, reproductive and social spheres are analyzed. The clear and fluent treatment will awaken the interest of the reading public, from the amateur naturalists to research scientists.
Survival Strategies Of Annual Desert Plants
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Author : Yitzchak Gutterman
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Survival Strategies Of Annual Desert Plants written by Yitzchak Gutterman 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.
Annual desert plant species of unrelated taxa in the Negev Desert of Israel have developed complementary sets of adaptations and survival strategies as ecological equivalents with physiological, morphological and anatomical resemblances, in the various stages of their life cycles. After 40 years of research in hot deserts Yitzchak Gutterman provides a comprehensive treatise of such adaptations and strategies. In doing so he covers the following topics: post-maturation primary seed dormancy, which prevents germination of maturing seeds before the summer; seed dispersal mechanisms with escape or protection strategies; cautious or opportunistic germination strategies; seedling drought tolerance. The day-length is an important factor in regulating flowering as well as the phenotypic plasticity of seed germination which is also affected by maternal factors.
Desert Arthropods Life History Variations
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Author : Fred Punzo
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-14
Desert Arthropods Life History Variations written by Fred Punzo 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 2013-03-14 with Science categories.
It is difficult for me to recollect a time when I was not fascinated with the very notion of a desert. Walt Disney's film, The Living Desert, which I initially saw when I was 8 years of age, provided me with my first glimpse of this wondrous yet seemingly ho stile environment. The images were hypnotic and captivating. I looked on in amazement at the promenade Cl deux of the male and female scorpions during courtship. Their rhythmic and coordinated movements as they grasped one another made them appear to glide in unis on over the surface of the sand, each individual totally absorbed with its partner. In the next minute the fern ale had suddenly and utterly transformed herself like some Jekyll and Hyde act, into an aggressive predator whose prior gregarious embrace was now a hold of death for the male. The indomitable desert grasshopper mouse, the ever sentient kit fox, the graceful shovel-nosed snake swimming in an endless sea of sand.
Dispersal Biology Of Desert Plants
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Author : Karen van Rheede van Oudtshoorn
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Dispersal Biology Of Desert Plants written by Karen van Rheede van Oudtshoorn 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 2013-03-09 with Science categories.
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.
Plants In The Deserts Of The Middle East
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Author : Kamal H. Batanouny
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Plants In The Deserts Of The Middle East written by Kamal H. Batanouny 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 2013-11-11 with Science categories.
Usually authors write introductions for their books, although they know that not many readers will read it. Despite this, authors insist on writing an introduction and no publisher will publish a book without one. I would like to inform my dear readers that I have spent almost all of the first quarter of my life in a village in the Nile Delta, 65 km north of Cairo. The everyday scenery there was the beautiful green landscape dissected with canals full of running water. All of these were bordered with the huge sycamore, mulberry and acacia trees. The desert was something unknown to me at that time, except for the very basic information given in geography books, which explained that the desert is a place without water or cultiva tion. Some of my ideas about the desert came to me from the stories in the history of Islam and the desert lands where Islam originated. My real attraction to the desert developed in the last year of my under graduate studies. This was during the field courses in Ecology (Prof. A.M.