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Ecology

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Articles 391 - 420 of 657

Full-Text Articles in Physical Sciences and Mathematics

Biogeographical Distribution And Natural Groupings Among Five Sympatric Wild Cats In Tropical South Asia, Mohammed Ashraf Oct 2007

Biogeographical Distribution And Natural Groupings Among Five Sympatric Wild Cats In Tropical South Asia, Mohammed Ashraf

Mohammed Ashraf

Small to large carnivorous mammals in the tropical belt face extinction at an unprecedented rate. The vanishing of sympatric wild cats appears to be due to habitat fragmentation, human encroachment & poaching. The focus of this study is on ecological and distributional parameters that influence the wild cat communities in tropical South Asia. The distributional data for five sympatric cats is analyzed with the aim of understanding the species-habitat association under a conceptually unified binary-matrix framework. The use of cluster analysis techniques in this ecological study have helped to reveal the natural groupings among felid guilds and their ecological resource …


Nitrogen Inputs To Rhode Island Coastal Salt Ponds - Too Much Of A Good Thing, Scott W. Nixon, Betty A. Buckley Oct 2007

Nitrogen Inputs To Rhode Island Coastal Salt Ponds - Too Much Of A Good Thing, Scott W. Nixon, Betty A. Buckley

Special Collections (Miscellaneous)

Reviews concerns about increase of nitrogen in Rhode Island salt ponds as a result of human activities.


Virginia Wetlands Report Vol. 22, No. 2, Virginia Institute Of Marine Science, Center For Coastal Resources Management Oct 2007

Virginia Wetlands Report Vol. 22, No. 2, Virginia Institute Of Marine Science, Center For Coastal Resources Management

Virginia Wetlands Reports

The Big Picture: Managing Wetland from a Shoreline Perspective


The Planet, 2007, Fall, Page A. Buono, Huxley College Of The Environment, Western Washington University Oct 2007

The Planet, 2007, Fall, Page A. Buono, Huxley College Of The Environment, Western Washington University

The Planet

No abstract provided.


Private Rights And Collective Governance: A Functional Approach To Natural Resources Law, Eric T. Freyfogle Jun 2007

Private Rights And Collective Governance: A Functional Approach To Natural Resources Law, Eric T. Freyfogle

The Future of Natural Resources Law and Policy (Summer Conference, June 6-8)

4 pages.

"Eric T. Freyfogle, Max L. Rowe Professor of Law, University of Illinois College of Law"


Historical Evolution And Future Of Natural Resources Law And Policy: The Beginning Of An Argument And Some Modest Predictions, Sally K. Fairfax, Helen Ingram, Leigh Raymond Jun 2007

Historical Evolution And Future Of Natural Resources Law And Policy: The Beginning Of An Argument And Some Modest Predictions, Sally K. Fairfax, Helen Ingram, Leigh Raymond

The Future of Natural Resources Law and Policy (Summer Conference, June 6-8)

8 pages.

Includes bibliographical references

"Sally Fairfax, UC-Berkeley, Helen Ingram, UC-Irvine, and Leigh Raymond, Purdue University" -- Agenda


Importance Of Early Successional Forest For Wildlife In Southern New England, Amy Wynia May 2007

Importance Of Early Successional Forest For Wildlife In Southern New England, Amy Wynia

Senior Honors Projects

Many bird species that require early successional forest are declining in the Northeast U.S. because such habitat is relatively rare and when they inhabit the more common mature forests or suburban areas they are less successful. Early successional forest is maintained by regular disturbance (wind, fire, clear-cutting, and flooding) which has been happening less frequently during the past 50 years. Bird species that have declined during this time and which inhabit early successional forest include ruffed grouse (Bonasa umbellus), blue jay (Cyanocitta cristata), chestnut-sided warbler (Dendroica pensylvanica), gray catbird (Dumetella carolinensis), field sparrow (Spizella pusilla), golden-winged warbler (Vermivora chrysoptera), eastern …


The Planet, 2007, Spring, Shawn C. Query, Huxley College Of The Environment, Western Washington University Apr 2007

The Planet, 2007, Spring, Shawn C. Query, Huxley College Of The Environment, Western Washington University

The Planet

No abstract provided.


Virginia Wetlands Report Vol. 22, No. 1, Virginia Institute Of Marine Science, Center For Coastal Resources Management Mar 2007

Virginia Wetlands Report Vol. 22, No. 1, Virginia Institute Of Marine Science, Center For Coastal Resources Management

Virginia Wetlands Reports

Sea Level Rise & Other Coastal Hazards - Living on the Edge Tidal Wetlands and Sea Level Rise: Where’s the Marsh?


Contributions To The Chiroptera Of Mongolia With First Evidences On Species Communities And Ecological Niches, Dietrich Dolch, Nyamsuren Batsaikhan, Klaus Thiele, Frank Burger, Ingo Scheffler, Andreas Kiefer, Frieder Mayer, Ravčigijn Samjaa, Annegret Stubbe, Michael Stubbe, Leonard Krall, Dirk Steinhauser Jan 2007

Contributions To The Chiroptera Of Mongolia With First Evidences On Species Communities And Ecological Niches, Dietrich Dolch, Nyamsuren Batsaikhan, Klaus Thiele, Frank Burger, Ingo Scheffler, Andreas Kiefer, Frieder Mayer, Ravčigijn Samjaa, Annegret Stubbe, Michael Stubbe, Leonard Krall, Dirk Steinhauser

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

In this paper are presented the accounts of 13 identified bat species from a total of 628 captured specimens from 32 locations in Mongolia during three field expeditions. These species accounts include taxonomical, morphological, and ecological data resulting from observations and further analyses. As a result of this work the distribution of some bat species in Mongolia can be drawn in more detail. For instance, Vespertilio murinus is much wider distributed and abundant than the former records indicate. The Plecotus species were clearly identified by genetic analyses combined with morphological characteristics. Moreover, the second record for Eptesicus serotinus and the …


The Planet, 2007, Winter, Shawn C. Query, Huxley College Of The Environment, Western Washington University Jan 2007

The Planet, 2007, Winter, Shawn C. Query, Huxley College Of The Environment, Western Washington University

The Planet

No abstract provided.


Schweinitz’S Sunflower Helianthus Schweinitzii Torrey And Gray, (Asterales: Asteraceae) In Upper Piedmont South Carolina, Steven E. Fields Jan 2007

Schweinitz’S Sunflower Helianthus Schweinitzii Torrey And Gray, (Asterales: Asteraceae) In Upper Piedmont South Carolina, Steven E. Fields

Journal of the South Carolina Academy of Science

No abstract provided.


Virginia Wetlands Report Vol. 21, No. 2, Virginia Institute Of Marine Science, Center For Coastal Resources Management Oct 2006

Virginia Wetlands Report Vol. 21, No. 2, Virginia Institute Of Marine Science, Center For Coastal Resources Management

Virginia Wetlands Reports

Tools of the Tidal Shoreline Management Trade


The Planet, 2006, Fall, Shawn C. Query, Huxley College Of The Environment, Western Washington University Oct 2006

The Planet, 2006, Fall, Shawn C. Query, Huxley College Of The Environment, Western Washington University

The Planet

No abstract provided.


The Ecology Of Fire – Developments Since 1995 And Outstanding Questions, R. J. Whelan Jun 2006

The Ecology Of Fire – Developments Since 1995 And Outstanding Questions, R. J. Whelan

Faculty of Science - Papers (Archive)

Extract - Bushfire is on the agenda more than ever… internationally. The attention of the public and politicians has been captured by extensive media coverage on big fires in the last 5 years: Portugal, France, California, Colorado, South Africa, Indonesia, the Amazon – and 2001-02 and 2002-03 in SE Australia. The various enquiries that have followed these fire events, at least in Australia (e.g. the NSW Joint Select Committee on Bushfires 2002, the Victorian Government’s Inquiry into the 2002-2003 Victorian Bushfires – Esplin et al. 2003, the House of Representatives Select Committee Inquiry into the Recent Australian Bushfires – Nairn …


The Planet, 2006, Spring, Sarah M. Kuck, Huxley College Of The Environment, Western Washington University Apr 2006

The Planet, 2006, Spring, Sarah M. Kuck, Huxley College Of The Environment, Western Washington University

The Planet

No abstract provided.


Virginia Wetlands Report Vol. 21, No. 1, Virginia Institute Of Marine Science, Center For Coastal Resources Management Mar 2006

Virginia Wetlands Report Vol. 21, No. 1, Virginia Institute Of Marine Science, Center For Coastal Resources Management

Virginia Wetlands Reports

Integrated Coastal & Shoreline Management Guidance


The Planet, 2006, Winter, Sarah M. Kuck, Huxley College Of The Environment, Western Washington University Jan 2006

The Planet, 2006, Winter, Sarah M. Kuck, Huxley College Of The Environment, Western Washington University

The Planet

No abstract provided.


Using Student Generated Qualitative Ecological Models, J. Scott Blackwood, Marion Dresner, Hang-Kwang Luh Jan 2006

Using Student Generated Qualitative Ecological Models, J. Scott Blackwood, Marion Dresner, Hang-Kwang Luh

Environmental Science and Management Faculty Publications and Presentations

In this activity, students construct qualitative models of an ecosystem and use the models to gain a better understanding of direct and indirect ecological interactions. Qualitative modeling is described for use in two procedures, each with different educational goals and student backgrounds in mind. Part 1 is designed with the non-major or beginning ecology student in mind, and is intended both to improve student understanding of the ecosystem of interest and to provide a framework for the instructor to assess student learning. Part 2 is designed for more advanced students of ecology and involves the use of modeling software (POWERPLAY) …


Overdrive® Ecological Risk Assessment: Final Report, Bureau Of Land Management, Ensr International Nov 2005

Overdrive® Ecological Risk Assessment: Final Report, Bureau Of Land Management, Ensr International

All U.S. Government Documents (Utah Regional Depository)

The Bureau of Land Management (BLM), United States Department of the Interior (USDI), is proposing a program to treat vegetation on up to six million acres of public lands annually in 17 western states in the continental United States (U.S.) and Alaska. As part of this program, the BLM is proposing the use of ten herbicide active ingredients (a.i.) to control invasive plants and noxious weeds on approximately one million of the 6 million acres proposed for treatment. The BLM and its contractor, ENSR, are preparing a Vegetation Treatments Programmatic Environmental Impact Statement (EIS) to evaluate this and other proposed …


Tebuthiuron Ecological Risk Assessment, Bureau Of Land Management, Ensr International Nov 2005

Tebuthiuron Ecological Risk Assessment, Bureau Of Land Management, Ensr International

All U.S. Government Documents (Utah Regional Depository)

The Bureau of Land Management (BLM), United States Department of the Interior (USDI), is proposing a program to treat vegetation on up to six million acres of public lands annually in 17 western states in the continental United States (U.S.) and Alaska. As part of this program, the BLM is proposing the use of ten herbicide active ingredients (a.i.) to control invasive plants and noxious weeds on approximately one million of the 6 million acres proposed for treatment. The BLM and its contractor, ENSR, are preparing a Vegetation Treatments Programmatic Environmental Impact Statement (EIS) to evaluate this and other proposed …


Sulfometuron Methyl Ecological Risk Assessment, Final Report, Bureau Of Land Management, Ensr International Nov 2005

Sulfometuron Methyl Ecological Risk Assessment, Final Report, Bureau Of Land Management, Ensr International

All U.S. Government Documents (Utah Regional Depository)

The Bureau of Land Management (BLM), United States Department of the Interior (USDI), is proposing a program to treat vegetation on up to six million acres of public lands annually in 17 western states in the continental United States (U.S.) and Alaska. As part of this program, the BLM is proposing the use of ten herbicide active ingredients (a.i.) to control invasive plants and noxious weeds on approximately one million of the six million acres proposed for treatment. The BLM and its contractor, ENSR, are preparing a Vegetation Treatments Programmatic Environmental Impact Statement (EIS) to evaluate this and other proposed …


The Virginia Wetlands Report Vol. 20, No. 2, Virginia Institute Of Marine Science Oct 2005

The Virginia Wetlands Report Vol. 20, No. 2, Virginia Institute Of Marine Science

Virginia Wetlands Reports

  • VMRC Adopts Wetland Mitigation/Compensation Policy Changes. Tom Barnard
  • Recommendations for Implementing the Tidal Wetlands Mitigation-Compensation Policy


The Planet, 2005, Fall, Sarah M. Kuck, Huxley College Of The Environment, Western Washington University Oct 2005

The Planet, 2005, Fall, Sarah M. Kuck, Huxley College Of The Environment, Western Washington University

The Planet

No abstract provided.


Interannual Variation Of Stratification In Lower Chesapeake Bay, Christopher S. Katzenmiller Jul 2005

Interannual Variation Of Stratification In Lower Chesapeake Bay, Christopher S. Katzenmiller

OES Theses and Dissertations

Stratification in the water column can prove to be an important indicator to the state of the water column and ecosystem. The focus of this research is to evaluate trends in stratification in the Lower Chesapeake Bay. Detailed analysis was performed on a 14 year data set to study interannual variation in the region of study. Potential energy anomaly was used to quantify stratification. Potential energy anomaly is the amount of energy required to mix a water column. It is determined from the vertical density structure of density. Potential energy anomaly is the departure of potential energy from climate conditions. …


The Planet, 2005, Spring, Lucas Henning, Huxley College Of The Environment, Western Washington University Apr 2005

The Planet, 2005, Spring, Lucas Henning, Huxley College Of The Environment, Western Washington University

The Planet

No abstract provided.


The Virginia Wetlands Report Vol. 20, No. 1, Virginia Institute Of Marine Science Mar 2005

The Virginia Wetlands Report Vol. 20, No. 1, Virginia Institute Of Marine Science

Virginia Wetlands Reports

  • Clapper Rail (Rallus longirostris). Julie Bradshaw
  • Tidal Wetlands Seminar Draws Crowd
  • Annual Summary of Permitted Tidal Wetland Impacts - 2004. Karen Duhring
  • Take a Wetland to Lunch…. Or Take your Lunch to a Wetland Pam Mason
  • A Level I Protocol for Assessing Wetland Condition by Hydrologic Unit within the Coastal Plain. Kirk Havens


Beiträge Zur Ökologie Und Verbreitung Der Steppenwühlmaus Microtus Brandti Radde, 1861 In Der Mongolei = Ecology And Distribution Of The Steppe Vole Microtus Brandti Radde, 1861 In Mongolia, N. Dawaa, Michael Stubbe, Annegret Stubbe Jan 2005

Beiträge Zur Ökologie Und Verbreitung Der Steppenwühlmaus Microtus Brandti Radde, 1861 In Der Mongolei = Ecology And Distribution Of The Steppe Vole Microtus Brandti Radde, 1861 In Mongolia, N. Dawaa, Michael Stubbe, Annegret Stubbe

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

Microtus brandti is one of the most important pest species of Mongolian rodents. Since the publication of Bannikov (1954) the area of expansion is increased, in the Archangaj-Aimag 200 km westward, in the Central Aimag 70 km to the North and in the north-eastern part of Dornogov’- Aimag about 110 km to the South. In years of gradation the plant cover was exterminated up to 100%. We can distinguish a zone of exposed harmfulness with a damage of 70-100%. In this region 16 great centers of infestation were listed. Between 1925 and 1985 six important calamities were noticed, in intervals …


First Results Of Wild Ass Research In The South Gobi Aymag/Mongolia In 2003 And 2004, Annegret Stubbe, Michael Stubbe, N. Batsajchan, R. Samjaa, S. Doržderem Jan 2005

First Results Of Wild Ass Research In The South Gobi Aymag/Mongolia In 2003 And 2004, Annegret Stubbe, Michael Stubbe, N. Batsajchan, R. Samjaa, S. Doržderem

Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298

The population of the Mongolian wild ass belongs to the nominate form Equus hemionus hemionus described by Pallas in 1775. This species is adapted to semidesert habitats in the Gobi region and is listed in the Red Book of Mongolia as well as on appendix I of the Washington Convention (CITES). Mapping of the northern border of the distributional range showed a remarkable decrease in size in comparison to the maps of Murzaev (1954) or Bannikov (1954). The pressure of civilization, settlements, motorization, and increasing numbers of domestic livestock in connection with the occupation of water resources and illegal hunting …


Unruly Complexity: Ecology, Interpretation, Engagement, Peter Taylor Jan 2005

Unruly Complexity: Ecology, Interpretation, Engagement, Peter Taylor

Peter Taylor

Ambitiously identifying fresh issues in the study of complex systems, Peter J. Taylor, in a model of interdisciplinary exploration, makes these concerns accessible to scholars in the fields of ecology, environmental science, and science studies. Unruly Complexity explores concepts used to deal with complexity in three realms: ecology and socio-environmental change; the collective constitution of knowledge; and the interpretations of science as they influence subsequent research. For each realm Taylor shows that unruly complexity-situations that lack definite boundaries, where what goes on "outside" continually restructures what is "inside," and where diverse processes come together to produce change-should not be suppressed …