Causes and Consequences of Spatial Aggregation for Seedling Establishment of a Long-lived Desert Perennial Shrub (Chrysothamnus Nauseosus: Asteraceae)

Causes and Consequences of Spatial Aggregation for Seedling Establishment of a Long-lived Desert Perennial Shrub (Chrysothamnus Nauseosus: Asteraceae) PDF Author: Rebecca Balogh Benard
Publisher:
ISBN:
Category :
Languages : en
Pages : 262

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Dissertation Abstracts International

Dissertation Abstracts International PDF Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 942

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Excavation of Two Anasazi Sites in Southern Utah

Excavation of Two Anasazi Sites in Southern Utah PDF Author:
Publisher:
ISBN:
Category : Excavations (Archaeology)
Languages : en
Pages : 380

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"The two reports published here contain elements which contribute substantially to this broader spectrum of Southwestern cultural change. While primarily descriptive in nature, these two site reports, one from the western Kayenta area and one from the margin of the Mesa Verde area and the eastern Kayenta, suggest that the changes which occurred in the more centralized portions of these regions were directly related to what happened on the margins. That, while the site densities and population aggregates may not have been as high, the same factors affected these marginal areas. That conclusion could be expected, but what may not be expected is the differential response which appears to have occurred. After reading these two reports, it appears that it may be possible to discern elements of change in these fringe areas that, once defined, will provide new insight into what happened and why and in what are presently the better known areas of the Southwest. These two papers are important, in sum, not only because they are reports of work in poorly known areas, but because they do provide analyses of fringe areas, they help us to understand the Southwest generally"--From preliminary introduction.

Nitrogen, the Confer-N-s

Nitrogen, the Confer-N-s PDF Author: K. van der Hoek
Publisher: Elsevier
ISBN: 0080984681
Category : Science
Languages : en
Pages : 813

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Book Description
The First International Nitrogen Conference provided an opportunity for researchers and decision-makers to exchange information on environmental pollution by nitrogen compounds on three scales: global, continental/regional and local. The main topics were air, ground water and surface water pollution; emission sources, atmospheric chemistry, deposition processes and effects; disturbance of nitrogen cycles, critical loads and levels; assessments, policy development and evaluation; target groups and abatement techniques; and new approaches leading to an integrated abatement strategy.The peer-reviewed papers from the Conference presented in this volume will provide readers with a comprehensive review of the transport, deposition and impact on ecosystems of nitrogen.

Bibliography of Agriculture

Bibliography of Agriculture PDF Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 652

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Handbook of Vegetable Pests

Handbook of Vegetable Pests PDF Author: John L. Capinera
Publisher: Gulf Professional Publishing
ISBN: 9780121588618
Category : Gardening
Languages : en
Pages : 792

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Book Description
Assisting anyone in need of an easy-to-use yet comprehensive survey of all pests likely to be encountered in North America, this handbook provides thorough identification guides, descriptions of pest life history, and pest management recommendations. Including hundreds of illustrations, this guide is cross-referenced to scientific literature, and includes color plates for ease of insect identification.

Restoring Western Ranges and Wildlands

Restoring Western Ranges and Wildlands PDF Author: Stephen B. Monsen
Publisher:
ISBN:
Category : Range management
Languages : en
Pages : 324

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Phytolith Systematics

Phytolith Systematics PDF Author: Susan C. Mulholland
Publisher: Springer Science & Business Media
ISBN: 1489911553
Category : Social Science
Languages : en
Pages : 378

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Book Description
This volume is the first in theAdvances in Archaeological and Museum Science series sponsored by the Society for Archaeological Sciences. The purpose of this biennial series is to provide summaries of advances in closely defined topics in archaeometry, archaeological science, environmental archaeology, preservation technology and museum conservation. The Society for Archaeological Sciences (SAS) exists to encourage interdisci plinary collaboration between archaeologists and colleagues in the natural and physical sciences. SAS members are drawn from many disciplinary fields. However, they all share a common belief that physical science techniques and methods constitute an essential component of archaeological field and laboratory studies. The General Editors wish to express their appreciation to Renee S. Kra and Frances D. Moskovitz of Radiocarbon for their special expertise and assistance in the production of this volume. We also appreciate the contribution of the two reviewers for their excellent comments and suggestions. The General Editor responsible for undertaking the development of this volume was R. E. Taylor.

Positive Interactions and Interdependence in Plant Communities

Positive Interactions and Interdependence in Plant Communities PDF Author: Ragan M. Callaway
Publisher: Springer Science & Business Media
ISBN: 1402062249
Category : Science
Languages : en
Pages : 419

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This book marshals ecological literature from the last century on facilitation to make the case against the widely accepted individualistic notion of community organization. It examines the idea that positive interactions are more prevalent in physically stressful conditions. Coverage also includes species specificity in facilitative interactions, indirect facilitative interactions, and potential evolutionary aspects of positive interactions.

A Manual of California Vegetation

A Manual of California Vegetation PDF Author: John Orvel Sawyer
Publisher: California Native Plant Society
ISBN:
Category : Science
Languages : en
Pages : 1316

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