Relict Species

Relict Species PDF Author: Jan Christian Habel
Publisher: Springer Science & Business Media
ISBN: 3540921605
Category : Science
Languages : en
Pages : 444

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Book Description
Mankind has evolved both genetically and culturally to become a most successful and dominant species. But we are now so numerous and our technology is so p- erful that we are having major effects on the planet, its environment, and the b- sphere. For some years prophets have warned of the possible detrimental consequences of our activities, such as pollution, deforestation, and overfishing, and recently it has become clear that we are even changing the atmosphere (e. g. ozone, carbon dioxide). This is worrying since the planet’s life systems are involved and dependent on its functioning. Current climate change – global w arming – is one recognised consequence of this larger problem. To face this major challenge, we will need the research and advice of many disciplines – Physics, Chemistry, Earth Sciences, Biology, and Sociology – and particularly the commitment of wise politicians such as US Senator Al Gore. An important aspect of this global problem that has been researched for several decades is the loss of species and the impoverishment of our ecosystems, and hence their ability to sustain themselves, and more particularly us! Through evolutionary time new species have been generated and some have gone extinct. Such extinction and regeneration are moulded by changes in the earth’s crust, atmosphere, and resultant climate. Some extinctions have been massive, particularly those asso- ated with catastrophic meteoric impacts like the end of the Cretaceous Period 65Mya.

Relict Species

Relict Species PDF Author: Jan Christian Habel
Publisher: Springer Science & Business Media
ISBN: 3540921605
Category : Science
Languages : en
Pages : 444

Get Book Here

Book Description
Mankind has evolved both genetically and culturally to become a most successful and dominant species. But we are now so numerous and our technology is so p- erful that we are having major effects on the planet, its environment, and the b- sphere. For some years prophets have warned of the possible detrimental consequences of our activities, such as pollution, deforestation, and overfishing, and recently it has become clear that we are even changing the atmosphere (e. g. ozone, carbon dioxide). This is worrying since the planet’s life systems are involved and dependent on its functioning. Current climate change – global w arming – is one recognised consequence of this larger problem. To face this major challenge, we will need the research and advice of many disciplines – Physics, Chemistry, Earth Sciences, Biology, and Sociology – and particularly the commitment of wise politicians such as US Senator Al Gore. An important aspect of this global problem that has been researched for several decades is the loss of species and the impoverishment of our ecosystems, and hence their ability to sustain themselves, and more particularly us! Through evolutionary time new species have been generated and some have gone extinct. Such extinction and regeneration are moulded by changes in the earth’s crust, atmosphere, and resultant climate. Some extinctions have been massive, particularly those asso- ated with catastrophic meteoric impacts like the end of the Cretaceous Period 65Mya.

Biodiversity Conservation and Phylogenetic Systematics

Biodiversity Conservation and Phylogenetic Systematics PDF Author: Roseli Pellens
Publisher: Springer
ISBN: 3319224611
Category : Science
Languages : en
Pages : 396

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Book Description
This book is about phylogenetic diversity as an approach to reduce biodiversity losses in this period of mass extinction. Chapters in the first section deal with questions such as the way we value phylogenetic diversity among other criteria for biodiversity conservation; the choice of measures; the loss of phylogenetic diversity with extinction; the importance of organisms that are deeply branched in the tree of life, and the role of relict species. The second section is composed by contributions exploring methodological aspects, such as how to deal with abundance, sampling effort, or conflicting trees in analysis of phylogenetic diversity. The last section is devoted to applications, showing how phylogenetic diversity can be integrated in systematic conservation planning, in EDGE and HEDGE evaluations. This wide coverage makes the book a reference for academics, policy makers and stakeholders dealing with biodiversity conservation.

In Defense of Plants

In Defense of Plants PDF Author: Matt Candeias
Publisher: Mango Media Inc.
ISBN: 1642504548
Category : Science
Languages : en
Pages : 206

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Book Description
The Study of Plants in a Whole New Light “Matt Candeias succeeds in evoking the wonder of plants with wit and wisdom.” ―James T. Costa, PhD, executive director, Highlands Biological Station and author of Darwin's Backyard #1 New Release in Nature & Ecology, Plants, Botany, Horticulture, Trees, Biological Sciences, and Nature Writing & Essays In his debut book, internationally-recognized blogger and podcaster Matt Candeias celebrates the nature of plants and the extraordinary world of plant organisms. A botanist’s defense. Since his early days of plant restoration, this amateur plant scientist has been enchanted with flora and the greater environmental ecology of the planet. Now, he looks at the study of plants through the lens of his ever-growing houseplant collection. Using gardening, houseplants, and examples of plants around you, In Defense of Plants changes your relationship with the world from the comfort of your windowsill. The ruthless, horny, and wonderful nature of plants. Understand how plants evolve and live on Earth with a never-before-seen look into their daily drama. Inside, Candeias explores the incredible ways plants live, fight, have sex, and conquer new territory. Whether a blossoming botanist or a professional plant scientist, In Defense of Plants is for anyone who sees plants as more than just static backdrops to more charismatic life forms. In this easily accessible introduction to the incredible world of plants, you’ll find: • Fantastic botanical histories and plant symbolism • Passionate stories of flora diversity and scientific names of plant organisms • Personal tales of plantsman discovery through the study of plants If you enjoyed books like The Botany of Desire, What a Plant Knows, or The Soul of an Octopus, then you’ll love In Defense of Plants.

Thorp and Covich's Freshwater Invertebrates

Thorp and Covich's Freshwater Invertebrates PDF Author: James H. Thorp
Publisher: Elsevier
ISBN: 0123850274
Category : Science
Languages : en
Pages : 1149

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Book Description
Readers familiar with the first three editions of Ecology and Classification of North American Freshwater Invertebrates (edited by J.H. Thorp and A.P. Covich) will welcome the comprehensive revision and expansion of that trusted professional reference manual and educational textbook from a single North American tome into a developing multi-volume series covering inland water invertebrates of the world. The series entitled Thorp and Covich's Freshwater Invertebrates (edited by J.H. Thorp) begins with the current Volume I: Ecology and General Biology (edited by J.H. Thorp and D.C. Rogers), which is designed as a companion volume for the remaining books in the series. Those following volumes provide taxonomic coverage for specific zoogeographic regions of the world, starting with Keys to Nearctic Fauna (Vol. II) and Keys to Palaearctic Fauna (Vol. III). Volume I maintains the ecological and general biological focus of the previous editions but now expands coverage globally in all chapters, includes more taxonomic groups (e.g., chapters on individual insect orders), and covers additional functional topics such as invasive species, economic impacts, and functional ecology. As in previous editions, the 4th edition of Ecology and Classification of North American Freshwater Invertebrates is designed for use by professionals in universities, government agencies, and private companies as well as by undergraduate and graduate students. - Global coverage of aquatic invertebrate ecology - Discussions on invertebrate ecology, phylogeny, and general biology written by international experts for each group - Separate chapters on invasive species and economic impacts and uses of invertebrates - Eight additional chapters on insect orders and a chapter on freshwater millipedes - Four new chapters on collecting and culturing techniques, ecology of invasive species, economic impacts, and ecological function of invertebrates - Overall expansion of ecology and general biology and a shift of the even more detailed taxonomic keys to other volumes in the projected 9-volume series - Identification keys to lower taxonomic levels

Plants at the Margin

Plants at the Margin PDF Author: R. M. M. Crawford
Publisher: Cambridge University Press
ISBN: 1139469290
Category : Science
Languages : en
Pages : 433

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Book Description
Margins are by their very nature environmentally unstable - does it therefore follow that plant populations adapted for life in such areas will prove to be pre-adapted to withstand the changes that may be brought about by a warmer world? Biogeography, demography, reproductive biology, physiology and genetics all provide cogent explanations as to why limits occur where they do, and the purpose of this book is to bring together these different avenues of enquiry. Crawford's numerous beautiful illustrations of plants in their natural habitats remind us that the environment remains essential to our understanding of plants and their function. This book is suited to students, researchers and anyone with an interest in the impact of climate change on our world.

The Species-Area Relationship

The Species-Area Relationship PDF Author: Thomas J. Matthews
Publisher: Cambridge University Press
ISBN: 1108477070
Category : Nature
Languages : en
Pages : 503

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Book Description
Provides a comprehensive synthesis of a fundamental phenomenon, the species-area relationship, addressing theory, evidence and application.

Relics

Relics PDF Author: Piotr Naskrecki
Publisher: University of Chicago Press
ISBN: 0226568725
Category : Nature
Languages : en
Pages : 365

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Book Description
On any night in early June, if you stand on the right beaches of America’s East Coast, you can travel back in time all the way to the Jurassic. For as you watch, thousands of horseshoe crabs will emerge from the foam and scuttle up the beach to their spawning grounds, as they’ve done, nearly unchanged, for more than 440 million years. Horseshoe crabs are far from the only contemporary manifestation of Earth’s distant past, and in Relics, world-renowned zoologist and photographer Piotr Naskrecki leads readers on an unbelievable journey through those lingering traces of a lost world. With camera in hand, he travels the globe to create a words-and-pictures portrait of our planet like no other, a time-lapse tour that renders Earth’s colossal age comprehensible, visible in creatures and habitats that have persisted, nearly untouched, for hundreds of millions of years. Naskrecki begins by defining the concept of a relic—a creature or habitat that, while acted upon by evolution, remains remarkably similar to its earliest manifestations in the fossil record. Then he pulls back the Cambrian curtain to reveal relic after eye-popping relic: katydids, ancient reptiles, horsetail ferns, majestic magnolias, and more, all depicted through stunning photographs and first-person accounts of Naskrecki’s time studying them and watching their interactions in their natural habitats. Then he turns to the habitats themselves, traveling to such remote locations as the Atewa Plateau of Africa, the highlands of Papua New Guinea, and the lush forests of the Guyana Shield of South America—a group of relatively untrammeled ecosystems that are the current end point of staggeringly long, uninterrupted histories that have made them our best entryway to understanding what the prehuman world looked, felt, sounded, and even smelled like. The stories and images of Earth’s past assembled in Relics are beautiful, breathtaking, and unmooring, plunging the reader into the hitherto incomprehensible reaches of deep time. We emerge changed, astonished by the unbroken skein of life on Earth and attentive to the hidden heritage of our planet’s past that surrounds us.

The Nature of Nebraska

The Nature of Nebraska PDF Author: Paul A. Johnsgard
Publisher: U of Nebraska Press
ISBN: 9780803276215
Category : Science
Languages : en
Pages : 438

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Book Description
Where the eastern and western currents of American life merge as smoothly as one river flows into another is a place called Nebraska. There we find the Platte, a river that gave sustenance to the countless migrants who once trudged westward along the Mormon and Oregon trails. We find the Sandhills, a vast region of sandy grassland that represents the largest area of dunes and the grandest and least disturbed region of mixed-grass prairies in all the Western Hemisphere. And, below it all, we find the Ogallala aquifer, the largest potential source of unpolluted water anywhere. ø These ecological treasures are all part of the nature of Nebraska. With characteristic clarity, energy, and charm, Paul A. Johnsgard guides us through Nebraska?s incredible biodiversity, introducing us to each ecosystem and the flora and fauna it sustains and inviting us to contemplate the purpose and secrets of the natural world as we consider our own roles and responsibilities in our connection with it.

The Biogeography of the Oceans

The Biogeography of the Oceans PDF Author:
Publisher: Academic Press
ISBN: 0080579558
Category : Science
Languages : en
Pages : 611

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Book Description
This is a special volume on ocean biogeography containing chapters bringing the wealth of knowledge of Russian scientists to a global audience. Ocean biogeography was the subject of much marine research carried out by the former USSR, where extensive facilities were provided on a world-wide scale. Volume 32 is devoted to the geographical and vertical distribution of life in the open oceans, including the great depths. The contributions range widely from plankton and squid to the bottom fauna of the bathyal, abyssal, and hadal zones. This volume will help bridge the gap between Russian and western marine biogeographers and will be of interest to a wide range of marine biologists. Advance in Marine Biology contains up-to-date reviews of all areas of marine science, including fisheries, science and macro/micro fauna. Each volume contains peer reviewed papers detailing the ecology of marine regions.

Phylogenetic Systematics

Phylogenetic Systematics PDF Author: Willi Hennig
Publisher: University of Illinois Press
ISBN: 9780252068140
Category : Science
Languages : en
Pages : 284

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Book Description
Phylogenetic Systematics, first published in 1966, marks a turning point in the history of systematic biology. Willi Hennig's influential synthetic work, arguing for the primacy of the phylogenetic system as the general reference system in biology, generated significant controversy and opened possibilities for evolutionary biology that are still being explored.