David A. Wardle's Books

Aboveground-Belowground Linkages

Biotic Interactions, Ecosystem Processes, and Global Change

By: Richard D. Bardgett,David A. Wardle

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Aboveground-Belowground Linkages

Biotic Interactions, Ecosystem Processes, and Global Change

By: Richard D. Bardgett,David A. Wardle

Aboveground-Belowground Linkages provides the most up-to-date and comprehensive synthesis of recent advances in our understanding of the roles that interactions between aboveground and belowground communities play in regulating the structure and function of terrestrial ecosystems, and their responses to global change. It charts the historical development of this field of ecology and evaluates what can be learned from the recent proliferation of studies on the ecological and biogeochemical significance of aboveground-belowground linkages. The book is structured around four key topics: biotic interactions in the soil; plant community effects; the role of aboveground consumers; and the influence of species gains and losses. A concluding chapter draws together this information and identifies a number of cross-cutting themes, including consideration of aboveground-belowground feedbacks that occur at different spatial and temporal scales, the consequences of these feedbacks for ecosystem processes, and how aboveground-belowground interactions link to human-induced global change.

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Page Count

320

Publisher

OUP Oxford

Published Date

ISBN 10

0191591351

ISBN 13

9780191591358

Communities and Ecosystems

Linking the Aboveground and Belowground Components

By: David A. Wardle

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Communities and Ecosystems

Linking the Aboveground and Belowground Components

By: David A. Wardle

Most of the earth's terrestrial species live in the soil. These organisms, which include many thousands of species of fungi and nematodes, shape aboveground plant and animal life as well as our climate and atmosphere. Indeed, all terrestrial ecosystems consist of interdependent aboveground and belowground compartments. Despite this, aboveground and belowground ecology have been conducted largely in isolation. This book represents the first major synthesis to focus explicitly on the connections between aboveground and belowground subsystems--and their importance for community structure and ecosystem functioning. David Wardle integrates a vast body of literature from numerous fields--including population ecology, ecosystem ecology, ecophysiology, ecological theory, soil science, and global-change biology--to explain the key conceptual issues relating to how aboveground and belowground communities affect one another and the processes that each component carries out. He then applies these concepts to a host of critical questions, including the regulation and function of biodiversity as well as the consequences of human-induced global change in the form of biological invasions, extinctions, atmospheric carbon-dioxide enrichment, nitrogen deposition, land-use change, and global warming. Through ambitious theoretical synthesis and a tremendous range of examples, Wardle shows that the key biotic drivers of community and ecosystem properties involve linkages between aboveground and belowground food webs, biotic interaction, the spatial and temporal dynamics of component organisms, and, ultimately, the ecophysiological traits of those organisms that emerge as ecological drivers. His conclusions will propel theoretical and empirical work throughout ecology.

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Page Count

401

Publisher

Princeton University Press

Published Date

ISBN 10

140084729X

ISBN 13

9781400847297

Excavation of the Iron Age, Roman and Medieval settlement at Gorhambury, St Albans

By: David S Neal,Angela Wardle,Jonathan Hunn

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Excavation of the Iron Age, Roman and Medieval settlement at Gorhambury, St Albans

By: David S Neal,Angela Wardle,Jonathan Hunn

Gorhambury, just north of Verulamium, was the site of a substantial Roman villa complex which was excavated between 1972 and 1982 as part of a programme designed to test the interrelationships between villa sites in the Verulamium area and to examine trends in their growth, decline and prosperity. The villa was found to have grown out of a settlement belonging to the late Iron Age. A series of ditches of this phase enclosed an aisled barn, a nine-post granary and a circular house; these were the beginnings of a sequence of structures on the same spot which show increasing signs of Roman influence, all of which lay within the limits of the farmstead established at this early period. Timber buildings of the first half of the first century were followed around AD100, by a small but luxurious villa, rebuilt in the late second century, and thereafter in a gradual decline until its apparent abandonment around AD 350. Work on virtually the whole of the farmstead area has enabled a full sequence of plans of the main houses and all the ancillary structures - including barns, subsidiary housing and bath-houses - to be presented in the report. The catalogue of finds is an attempt to show the full range of material recovered from this working farmstead.

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Page Count

263

Publisher

English Heritage

Published Date

ISBN 10

1848021461

ISBN 13

9781848021464

The Gaia Trilogy Books One to Three

Blue Gold, Rose Gold, and White Gold

By: David Barker

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The Gaia Trilogy Books One to Three

Blue Gold, Rose Gold, and White Gold

By: David Barker

The action-packed trilogy now in one volume—set in a water-starved world where international agents fight to keep doomsday at bay . . . This three-in-one digital edition of the thrilling Gaia series includes: Blue Gold Climate change and geopolitical tension have given rise to a new international threat: a world war over water. This vital resource has become a precious commodity, and some will stop at nothing to control its flow. When a satellite disappears over Iceland, Sim Atkins joins the Overseas Division to hunt for the terrorists responsible—a quest that will take him and his partner, Freda, to a billionaires’ tax haven in the middle of the Atlantic Ocean and into a web of deceit . . . Rose Gold In the aftermath of war, tensions remain high and terrorism is a daily fact of life. But a mining base on the moon offers a rare example of international co-operation and a possible solution to the world’s energy problems. Yet not everyone on Earth is keen for this endeavour to succeed—and Sim Atkins’s plan to start a family with his wife may have to be put on hold . . . White Gold Agent Atkins has returned home after surviving his last deadly mission, and all he can think about is finding the criminals responsible for a heinous act. But his fury and lust for revenge must be set aside when a nuclear warhead is stolen . . .

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Page Count

955

Publisher

Open Road Media

Published Date

ISBN 10

1504073517

ISBN 13

9781504073516

Rose Gold

A Gripping Thriller Full of Twists

By: David Barker

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Rose Gold

A Gripping Thriller Full of Twists

By: David Barker

As the international community battles to solve a disastrous water shortage, one agent finds danger hitting close to home in this follow-up to Blue Gold. In the aftermath of a world war over water, geopolitical tensions remain high, and terrorism is a daily fact of life. But a mining base on the moon offers a rare example of international co-operation and a possible solution to the world’s energy problems. Yet not everyone on Earth is keen for this endeavour to succeed. Sim Atkins and his wife are desperate to start a family. But a shocking message tells Sim that he’s already a father—and that his son’s life is in danger. Now Sim has to deal with the upheaval in his own life—while also dealing with a hunt for terrorists and a terrifying discovery in a cargo hold . . . From the author of Blue Gold, this is the thrilling second adventure set in a near future where water is running dry—and the world grows ever more desperate.

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Page Count

332

Publisher

Open Road Media

Published Date

ISBN 10

1504069374

ISBN 13

9781504069373

Communities and Ecosystems

Linking the Aboveground and Belowground Components

By: David A. Wardle

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Communities and Ecosystems

Linking the Aboveground and Belowground Components

By: David A. Wardle

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Page Count

401

Publisher

Princeton University Press

Published Date

ISBN 10

140084729X

ISBN 13

9781400847297

Book's by David A. Wardle

Aboveground-Belowground Linkages

Aboveground-Belowground Linkages

Communities and Ecosystems

Communities and Ecosystems

Excavation of the Iron Age, Roman and Medieval settlement at Gorhambury, St Albans

Excavation of the Iron Age, Roman and Medieval settlement at Gorhambury, St Albans

The Gaia Trilogy Books One to Three

The Gaia Trilogy Books One to Three

Rose Gold

Rose Gold

Communities and Ecosystems

Communities and Ecosystems

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