The Natural History of Juan Fernandez and Easter Island;

The Natural History of Juan Fernandez and Easter Island; PDF Author: Carl Skottsberg
Publisher: Sagwan Press
ISBN: 9781376890341
Category : History
Languages : en
Pages : 464

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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

The Natural History of Juan Fernandez and Easter Island Volume; Volume 1

The Natural History of Juan Fernandez and Easter Island Volume; Volume 1 PDF Author: Carl Skottsberg
Publisher: Andesite Press
ISBN: 9781376101898
Category :
Languages : en
Pages : 476

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Book Description
This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

The Natural History of Juan Fernandez and Easter Island Volume;

The Natural History of Juan Fernandez and Easter Island Volume; PDF Author: Carl Skottsberg
Publisher: Franklin Classics Trade Press
ISBN: 9780353105911
Category : History
Languages : en
Pages : 752

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Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

The Natural History of Juan Fernandez and Easter Island Volume; Volume 2

The Natural History of Juan Fernandez and Easter Island Volume; Volume 2 PDF Author: Carl Skottsberg
Publisher: Franklin Classics
ISBN: 9780343071226
Category :
Languages : en
Pages : 518

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Book Description
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

NATURAL HISTORY OF JUAN FERNANDEZ AND EASTER ISLAND,

NATURAL HISTORY OF JUAN FERNANDEZ AND EASTER ISLAND, PDF Author: CARL. SKOTTSBERG
Publisher:
ISBN: 9781033682654
Category :
Languages : en
Pages : 0

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Book Description


The Natural History Of Juan Fernandez And Easter Island, Vol. 3

The Natural History Of Juan Fernandez And Easter Island, Vol. 3 PDF Author: Carl Skottsberg
Publisher: Forgotten Books
ISBN: 9781332358816
Category : History
Languages : de
Pages : 750

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Book Description
Excerpt from The Natural History Of Juan Fernandez And Easter Island, Vol. 3: Zoology The adult specimens agree in a general way with descriptions in the literature, as f. I. Seebohm's in Cat. Birds B. M. Vol. V, p. 223 (the plate, Nr. XIV, appears quite incorrect) and schalow's in Fauna Chilensis 1, p. 747, but they are more richly coloured with buff below than specimens from the main land available to me. The back has also a somewhat more olivaceous tint than in specimens from Chile. This may, however, be variable and perhaps disappears through abrasion. The young bird has rather large blackish apical spots on the otherwise buffcoloured feathers of the breast and anks, less ou the fore neck. The feathers of the upper back as well display the usual ju venile pattern with whitish shaft stripes and apical semilunar black spots. The wing-coverts have pale buffish shaft stripes and the upper tail-coverts narrow whitish shaft stripes. This description differs in several respects from the one communicated by schalow (l. He speaks of the lower side being >intensiv rost-braunlich, die einzelnen Federn mit dunklen Saumen, so dass eine dunkle, wellige Zeichnung entsteht. The young bird oi the present collection does not display any undulated pattern on the lower side and the solid shape of the apical spots seem to prevent such a pattern. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."

ASSESSMENT AND CONTROL OF BIOLOGICAL INVASION RISKS

ASSESSMENT AND CONTROL OF BIOLOGICAL INVASION RISKS PDF Author: Fumito Koike
Publisher: World Conservation Union
ISBN:
Category : Nature
Languages : en
Pages : 228

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Book Description
Biological invasion, an issue of growing importance due to the significant increase in international transportation and trade, can disturb the balance of local ecosystems and even destroy them. This collection of papers presented at the International Conference on Assessment and Control of Biological Invasion Risks held in August 2004 at Yokohama National University discusses risk assessment, risk management and eradication. It also includes contributions reporting on the current status of invasion and the properties of alien species in East Asia.

Knowledge Graphs

Knowledge Graphs PDF Author: Aidan Hogan
Publisher: Morgan & Claypool Publishers
ISBN: 1636392369
Category : Computers
Languages : en
Pages : 257

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Book Description
This book provides a comprehensive and accessible introduction to knowledge graphs, which have recently garnered notable attention from both industry and academia. Knowledge graphs are founded on the principle of applying a graph-based abstraction to data, and are now broadly deployed in scenarios that require integrating and extracting value from multiple, diverse sources of data at large scale. The book defines knowledge graphs and provides a high-level overview of how they are used. It presents and contrasts popular graph models that are commonly used to represent data as graphs, and the languages by which they can be queried before describing how the resulting data graph can be enhanced with notions of schema, identity, and context. The book discusses how ontologies and rules can be used to encode knowledge as well as how inductive techniques—based on statistics, graph analytics, machine learning, etc.—can be used to encode and extract knowledge. It covers techniques for the creation, enrichment, assessment, and refinement of knowledge graphs and surveys recent open and enterprise knowledge graphs and the industries or applications within which they have been most widely adopted. The book closes by discussing the current limitations and future directions along which knowledge graphs are likely to evolve. This book is aimed at students, researchers, and practitioners who wish to learn more about knowledge graphs and how they facilitate extracting value from diverse data at large scale. To make the book accessible for newcomers, running examples and graphical notation are used throughout. Formal definitions and extensive references are also provided for those who opt to delve more deeply into specific topics.

Crop ecology, cultivation and uses of cactus pear

Crop ecology, cultivation and uses of cactus pear PDF Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251098603
Category : Nature
Languages : en
Pages : 244

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Book Description
Cactus plants are precious natural resources that provide nutritious food for people and livestock, especially in dryland areas. Originally published in 1995, this extensively revised edition provides fresh insights into the cactus plant’s genetic resources, physiological traits, soil preferences and vulnerability to pests. It provides invaluable guidance on managing the resource to support food security and offers tips on how to exploit the plant’s culinary qualities.

Mesophotic Coral Ecosystems

Mesophotic Coral Ecosystems PDF Author: Yossi Loya
Publisher: Springer
ISBN: 3319927353
Category : Science
Languages : en
Pages : 984

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Book Description
This book summarizes what is known about mesophotic coral ecosystems (MCEs) geographically and by major taxa. MCEs are characterized by light-dependent corals and associated communities typically found at depths ranging from 30-40 m. and extending to over 150 m. in tropical and subtropical ecosystems. They are populated with organisms typically associated with shallow coral reefs, such as macroalgae, corals, sponges, and fishes, as well as specialist species unique to mesophotic depths. During the past decade, there has been an increasing scientific and management interest in MCEs expressed by the exponential increase in the number of publications studying this unique environment. Despite their close proximity to well-studied shallow reefs, and the growing evidence of their importance, our scientific knowledge of MCEs is still in its early stages. The topics covered in the book include: regional variation in MCEs; similarities and differences between mesophotic and shallow reef taxa, biotic and abiotic conditions, biodiversity, ecology, geomorphology, and geology; potential connectivity between MCEs and shallow reefs; MCE disturbances, conservation, and management challenges; and new technologies, key research questions/knowledge gaps, priorities, and future directions in MCE research.