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Biodiversity In Space And Time: Towards A Grid Mapping For Mongolia, Michael Stubbe, Annegret Stubbe, Henrik Von Wehrden, Nayamsuren Batsaikhan, Ravčigijn Samjaa Jan 2007

Biodiversity In Space And Time: Towards A Grid Mapping For Mongolia, Michael Stubbe, Annegret Stubbe, Henrik Von Wehrden, Nayamsuren Batsaikhan, Ravčigijn Samjaa

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

In the future, grid mapping of animal and plant organisms will also play a major role in Mongolia. Based on geographical coordinates, a grid with a resolution of 100 x 100 km was created, which contained 561 cells. Methods and level of current understanding are exemplified by means of two raptors and three mammal species. This establishes a basis for an initial project, which will summarize all breeding occurrences of raptors based on all records, publications, or diary notes. For the first time, the short toed eagle was verified in Mongolia as a breeding bird in 2004. By 2006, ten …


Kiangs (Equus Kiang, Moorcroft 1841) In Sikkim, India, Natalia V. Paklina, Chris Van Orden Jan 2007

Kiangs (Equus Kiang, Moorcroft 1841) In Sikkim, India, Natalia V. Paklina, Chris Van Orden

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

Between the 5th and 10th of March 2001 we completed a 450 km route by car in Northern Sikkim. During the trip along the southern slopes of the Himalayas and Sikkim Plateau we didn’t see a single kiang. According to the local people and military personnel in Sikkim, kiangs are known only in the outer limits of the Sikkim Plateau, where wild animals have a possibility to migrate free over the Chinese-Indian border. In winter only small groups of kiang incidentally come to the Sikkim Plateau from South Tibet. But in May more of them come there and …


Current Status Of The Khulan (Equus Hemionus) In The Trans-Altai Gobi, Enkhbileg Dulamtseren, Adiya Yadamjav, Dovchindorj Ganbold, Mijidorj Batmunkh Jan 2007

Current Status Of The Khulan (Equus Hemionus) In The Trans-Altai Gobi, Enkhbileg Dulamtseren, Adiya Yadamjav, Dovchindorj Ganbold, Mijidorj Batmunkh

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

Since 1975, 25 wildlife surveys have been conducted in the Trans-Altai Gobi. In this paper we summarize results from the last 11 surveys, conducted between October 2000 and April 2005, and discuss our findings together with results from previous surveys.


Carl Hagenbeck Und Die Przewalskipferde, Klaus Gille, Stephan Hering-Hagenbeck Jan 2007

Carl Hagenbeck Und Die Przewalskipferde, Klaus Gille, Stephan Hering-Hagenbeck

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

First paragraph:

Was den unmittelbaren Anstoß für CARL HAGENBECK gab, 1901 den Import von Przewalskipferden zu initiieren, ist nicht bekannt. In seiner Autobiographie „Von Tieren und Menschen“ (1908) verweist er selbst auf eine Anregung durch den Herzog von BEDFORD (S. 212), die ihn zu diesem Unternehmen bewogen habe.


Assessment Of Non-Metric Skull Characters And Age Determination In The Asiatic Wild Ass Equus Hemionus: A Methodological Approach, Hermann Ansorge, Annegret Stubbe, Nyamsuren Batsaikhan, Ravčigijn Samjaa, Michael Stubbe Jan 2007

Assessment Of Non-Metric Skull Characters And Age Determination In The Asiatic Wild Ass Equus Hemionus: A Methodological Approach, Hermann Ansorge, Annegret Stubbe, Nyamsuren Batsaikhan, Ravčigijn Samjaa, Michael Stubbe

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

The report presents the first information on the use of non-metric skull characters and age determination by tooth section for Asiatic wild asses. It was initiated by a collection of more than 400 skulls of the Asiatic wild ass from the Bordzongijn-Gobi 2002-2004. The methodological overview gives a first research prospect in Asiatic Wild Ass concerning the use of non-metric skull characters as a morphological tool for assessing genetic variability, determining epigenetic divergences and evaluating fluctuating asymmetry. The time course of tooth eruption and replacement in the Asiatic wild ass is described with regard to its use for age determination. …


Territorial Behaviour Of Kiang (Equus Kiang Moorcroft, 1841) In Ladakh (India), Natalia V. Paklina, Chris Van Orden Jan 2007

Territorial Behaviour Of Kiang (Equus Kiang Moorcroft, 1841) In Ladakh (India), Natalia V. Paklina, Chris Van Orden

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

The observations of kiang behavior were made in Navokar Valley northeast of Tso Kar Lake (Ladakh, India) between July 30 and November 22, 2001. In the breeding season (end of July until the end of August) adult kiang males kept not overlapping, protected territories (about 10 km2), and marked by single defecation and urination marks. There were adult females with and without offspring on the territories (up to 12 animals, including the male). The distance between male and females on the territories was usually hundred times bigger, then a distance between stallion and his harem in horses. Females …


Semi-Wild Population Of Kulans In The Bukhara Breeding Centre And Their Co-Habitation With Przewalski’S Horses, Karim Bahloul, Olga B. Pereladova, Natalia V. Soldatova, Ekaterina V. Sidorenko, Antoine J. Sempere Jan 2007

Semi-Wild Population Of Kulans In The Bukhara Breeding Centre And Their Co-Habitation With Przewalski’S Horses, Karim Bahloul, Olga B. Pereladova, Natalia V. Soldatova, Ekaterina V. Sidorenko, Antoine J. Sempere

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

Asiatic wild asses and Przewalski's horses initially inhabited steppe, semi-desert and desert areas, but Przewalski's horses became extinct in the wild, and kulans are under threat of disappearance. The Bukhara Breeding Centre (Uzbekistan) was created in 1976 for conservation and reintroduction of wild ungulate species. In 1977-1978, five kulans (two males and three females) from Barsa-Kelmes Island on the Aral lake were introduced to the reserve. The group increased to 25-30 animals in 1995-1998, when five Przewalski's horses from Moscow and St. Petersburg zoos were introduced to the same territory. We analyzed the home ranges, preferred habitats and social interactions …


Social Networks In Wild Asses: Comparing Patterns And Processes Among Populations, Daniel I. Rubenstein, Siva Sundaresan, Ilya Fischhoff, David Saltz Jan 2007

Social Networks In Wild Asses: Comparing Patterns And Processes Among Populations, Daniel I. Rubenstein, Siva Sundaresan, Ilya Fischhoff, David Saltz

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

Asiatic wild asses inhabit some of the most arid environments in the world. All live in fissionfusion societies, but demography varies and the deserts in which they live often differ in subtle ways. Characterizing details of social structure of wild ass populations has been a challenge and has made it difficult to determine causes and consequences of any differences that might exist. We use network theory to compare the social structures of two populations of Asiatic asses/ onagers inhabiting the Negev desert, Israel and khur of the Little Rann of Kuch, India and show that populations differ in important structural …


An Overview On The State Of Equus Hemionus In Whole China, Weikang Yang Jan 2007

An Overview On The State Of Equus Hemionus In Whole China, Weikang Yang

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

The wild ass in China is divided into two species: Gobi khulan (Equus hemionus) and kiang (Equus kiang). Maps and charts of the distribution and population sizes in China and Mongolia of each species are shown from the 1980s through the early 2000s.


A Record Of Antarctic Climate And Ice Sheet History Recovered, T. R. Naish, R. D. Powell, R. H. Levy, F. Florindo, D. M. Harwood, G. Kuhn, F. Niessen, F. Talarico, G. S. Wilson Jan 2007

A Record Of Antarctic Climate And Ice Sheet History Recovered, T. R. Naish, R. D. Powell, R. H. Levy, F. Florindo, D. M. Harwood, G. Kuhn, F. Niessen, F. Talarico, G. S. Wilson

ANDRILL Research and Publications

Antarctica’s late Cenozoic (the past ~15 million years) climate history is poorly known from direct evidence, owing to its remoteness, an extensive sea ice apron, and an ice sheet cover over the region for the past 34 million years. Consequently, knowledge about the role of Antarctica’s ice sheets in global sea level and climate has relied heavily upon interpretations of oxygen isotope records from deep-sea cores. Whereas these isotopic records have revolutionized our understanding of climate-ice-ocean interactions, questions still remain about the specific role of Antarctic ice sheets in global climate. Such questions can be addressed from geological records at …


Palaeontologic Characterisation And Analysis Of The And-1b Core, Andrill Mcmurdo Ice Shelf Project, Antarctica, R. Scherer, M. Hannah, P. Maffioli, D. Persico, C. Sjunneskog, C. P. Strong, M. Taviani, D. Winter, Andrill-Mis Science Team Jan 2007

Palaeontologic Characterisation And Analysis Of The And-1b Core, Andrill Mcmurdo Ice Shelf Project, Antarctica, R. Scherer, M. Hannah, P. Maffioli, D. Persico, C. Sjunneskog, C. P. Strong, M. Taviani, D. Winter, Andrill-Mis Science Team

ANDRILL Research and Publications

Fossils provide key data sets for the interpretation of the AND-1B core. Calcareous plankton and benthos provide the basis for palaeoenvironmental interpretations of both surface and bottom waters. Calcareous fossils are rare throughout, but occurrences noted are significant. Some calcareous fossils provide potential for age control via 86Sr/87Sr, and palaeoenvironmental information may come from Mg/Ca ratios as well as oxygen and carbon isotopes. Organic-walled microfossils provide an index of reworking and transport, as well as the identifi cation of a possible in situ Pliocene assemblage of previously unknown marine palynomorphs. Diatoms are abundant in the core, with …


Droughtscape, Winter 2007, Kelly Smith Jan 2007

Droughtscape, Winter 2007, Kelly Smith

DroughtScape: Quarterly Newsletter of the National Drought Mitigation Center (2007–2023)

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Policy Update: NIDIS is Law. What’s Next?

What Would You Like to See?

TX, OK, Plains, Southwest Hardest Hit in 2006

Climatologically Speaking, How Bad Was It?

State Spotlight: Arizona

Drought Decision-Support Tools Evolving


A Test Of The Cross-Scale Resilience Model: Functional Richness In Mediterranean-Climate Ecosystems, Donald A. Wardwell, Craig R. Allen, Garry D. Peterson, Andrew J. Tyre Jan 2007

A Test Of The Cross-Scale Resilience Model: Functional Richness In Mediterranean-Climate Ecosystems, Donald A. Wardwell, Craig R. Allen, Garry D. Peterson, Andrew J. Tyre

Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications

Ecological resilience has been proposed to be generated, in part, in the discontinuous structure of complex systems. Environmental discontinuities are reflected in discontinuous, aggregated animal body mass distributions. Diversity of functional groups within body mass aggregations (scales) and redundancy of functional groups across body mass aggregations (scales) has been proposed to increase resilience. We evaluate that proposition by analyzing mammalian and avian communities of Mediterranean-climate ecosystems. We first determined that body mass distributions for each animal community were discontinuous. We then calculated the variance in richness of function across aggregations in each community, and compared observed values with distributions created …


Racial Inequality In The Distribution Of Hazardous Waste: A National-Level Reassessment, Paul Mohai, Robin Saha Jan 2007

Racial Inequality In The Distribution Of Hazardous Waste: A National-Level Reassessment, Paul Mohai, Robin Saha

Environmental Studies Faculty Publications

National-level studies examining racial disparities around hazardous waste treatment, storage, and disposal facilities have been very influential in defining the academic and political debates about the existence and importance of "environmental injustice." However, these studies tend to employ methods that fail to adequately control for proximity between environmentally hazardous sites and nearby residential populations. By using GIS and applying methods increasingly used in environmental inequality research that better control for proximity, we conduct a comprehensive reassessment of racial inequality in the distribution of the nation 's hazardous waste facilities. We compare the magnitude of racial disparities found with those of …


Nutrient Concentrations At Baseflow Conditions In The Upper White River Basin, Southwest Missouri And Northwest Arkansas, Gopala G. Borchelt Jan 2007

Nutrient Concentrations At Baseflow Conditions In The Upper White River Basin, Southwest Missouri And Northwest Arkansas, Gopala G. Borchelt

Graduate Theses/Dissertations

The Upper White River Basin (UWRB) is becoming increasingly vulnerable to water quality degradation from urban/population growth and increased agricultural production. This study examines the relationships among nutrient levels, water chemistry and watershed characteristics of 19 watersheds in the UWRB. Water samples were collected during baseflow conditions each month for one year at USGS continuous-flow gage stations. Watershed characteristics evaluated were land use, geology, drainage area, flow discharge, and wastewater treatment plant discharge (WTP). Measured chemical water quality indicators include total nitrogen (TN), total phosphorus (TP), specific conductivity, turbidity, pH and dissolved oxygen. Rapidly expanding urban areas are associated with …


Nebraska Cooperative Fish And Wildlife Research Unit: Report Of Activities October 2006 – October 2007, Craig R. Allen, Kevin L. Pope Jan 2007

Nebraska Cooperative Fish And Wildlife Research Unit: Report Of Activities October 2006 – October 2007, Craig R. Allen, Kevin L. Pope

School of Natural Resources: Faculty Publications

INTRODUCTION 1
PERSONNEL AND COOPERATORS 3
Unit Personnel 3
Coordinating Committee Members 5
Cooperators 6
MILESTONES 9
PROJECTS IN FISHERY SCIENCE 11
Impact of White Perch on Walleye at Branched Oak and Pawnee Reservoirs 13
Predators of White Perch at Branched Oak and Pawnee Reservoirs 14
Recruitment of Walleye and White Bass in Irrigation Reservoirs 15
PROJECTS IN WILDLIFE SCIENCE 17
Amphibian Monitoring Techniques (in Relation to Wetland Qualities and the Surrounding Landscape
– Rainwater Basin Region) 19
Assessing Local and Regional Variability in Productivity and Fidelity of Grassland Birds on National
Park Service Units in the Great Plains 20 …


Model Estimation Of Land-Use Effects On Water Levels Of Northern Prairie Wetlands, Richard A. Voldseth, W.Carter Johnson, Tagir Gilmanov, Glenn R. Guntenspergen, Bruce V. Millett Jan 2007

Model Estimation Of Land-Use Effects On Water Levels Of Northern Prairie Wetlands, Richard A. Voldseth, W.Carter Johnson, Tagir Gilmanov, Glenn R. Guntenspergen, Bruce V. Millett

Natural Resource Management Faculty Publications

Wetlands of the Prairie Pothole Region exist in a matrix of grassland dominated by intensive pastoral and cultivation agriculture. Recent conservation management has emphasized the conversion of cultivated farmland and degraded pastures to intact grassland to improve upland nesting habitat. The consequences of changes in land-use cover that alter watershed processes have not been evaluated relative to their effect on the water budgets and vegetation dynamics of associated wetlands. We simulated the effect of upland agricultural practices on the water budget and vegetation of a semipermanent prairie wetland by modifying a previously published mathematical model (WETSIM). Watershed cover/landuse practices were …


Environmental Factors Influencing The Siting Of Temporary Housing In Orleans Parish, Philip J. Chandler Jan 2007

Environmental Factors Influencing The Siting Of Temporary Housing In Orleans Parish, Philip J. Chandler

LSU Master's Theses

The disaster in New Orleans due to Hurricane Katrina showcased the city's many environmental problems. The industrial history of the city, subsidence of the city causing it to be below sea-level, and the fact that the city is protected by levees and pumps were critical elements of the disaster and played a large role in the emergency response. The disaster led to an enormous emergency response by many entities, but the Federal Emergency Management Agency (FEMA) has the lead in these actions. In response to the large number of homes being flooded and unlivable in Orleans Parish, FEMA implemented its …


Traditional Fishing And Significance Of Place: A Case Study Of Cooks Landing, Washington, Hillary Eagle-Eye Renick Jan 2007

Traditional Fishing And Significance Of Place: A Case Study Of Cooks Landing, Washington, Hillary Eagle-Eye Renick

All Master's Theses

The purpose of this thesis is to present an understanding of a unique Columbia River Indian Fishing community through time and space. The place is a traditional Columbia River Indian fishing community, known as Cooks Landing. This place is one of five fishing places improved by the U.S. Army Corps of Engineers to comply with mandated replacement of Indian fishing sites, in-lieu of those fishing sites flooded or damaged by the construction and operation of Bonneville Dam. This thesis analyzes written history, oral history, and the formal structure and spatial functions of this in-lieu site. It examines questions about those …


Conservation Genetics Of Snowy Plovers (Charadrius Alexandrinus) In The Western Hemisphere: Population Genetic Structure And Delineation Of Subspecies, W. Chris Funk, Thomas D. Mullins, Susan M. Haig Jan 2007

Conservation Genetics Of Snowy Plovers (Charadrius Alexandrinus) In The Western Hemisphere: Population Genetic Structure And Delineation Of Subspecies, W. Chris Funk, Thomas D. Mullins, Susan M. Haig

United States Geological Survey: Staff Publications

We examined the genetic structure of snowy plovers (Charadrius alexandrinus) in North America, the Caribbean, and the west coast of South America to quantify variation within and among breeding areas and to test the validity of three previously recognized subspecies. Sequences (676 bp) from domains I and II of the mitochondrial control region were analyzed for 166 snowy plovers from 20 breeding areas. Variation was also examined at 10 microsatellite loci for 144 snowy plovers from 14 breeding areas. The mtDNA and microsatellite data provided strong evidence that the Puerto Rican breeding group is genetically divergent from sites …


Dune Fields: Mid-Latitudes, J. Sun, Daniel R. Muhs Jan 2007

Dune Fields: Mid-Latitudes, J. Sun, Daniel R. Muhs

United States Geological Survey: Staff Publications

Large dune fields, or sand seas, are landscapes often thought to be found only in deserts beneath the great, subtropical high-pressure zones, where subsiding air suppresses rainfall. Dune fields are also quite common in mid-latitude regions, to the north and south of subtropical deserts (Fig. 1). Two major characteristics distinguish many mid-latitude dune fields from the sand seas of lower latitudes. One difference is that many of those in mid-latitudes are in semiarid, rather than arid climates, and therefore are not presently active. In this article, ‘active’ refers to eolian sand bodies that are not covered with vegetation, and where …


Environmental Information Systems And Community-Based Resource Management In Ghana: An Investigation Of Institutional Policy And Implementation In Context, Abednego Ayitey Aryee Jan 2007

Environmental Information Systems And Community-Based Resource Management In Ghana: An Investigation Of Institutional Policy And Implementation In Context, Abednego Ayitey Aryee

Theses and Dissertations (Comprehensive)

This study employed a case-study approach and cross-case analysis to investigate the impact of Environmental Information Systems (EIS) and Local Knowledge Systems (LKS) on agro-forestry management and biodiversity conservation. Questionnaire-based interviews with service providers, resource managers and focus group discussions with farmers associated with the United Nations Capacity 21, the Netherlands Tropenbos International (TBI) and the United Nations Project on People Land Management and Conservation (UNPLEC), projects yielded in-depth information on agro-forestry practices in southern Ghana. The findings of the survey revealed that computer-based information systems have been used to identify areas of resource degradation. This has served as a …


An Institutional Analysis Of Oil And Gas Sector Development And Environmental Management In The Yukon Territory, Jason C. May Jan 2007

An Institutional Analysis Of Oil And Gas Sector Development And Environmental Management In The Yukon Territory, Jason C. May

Theses and Dissertations (Comprehensive)

This thesis investigates the ways in which oil and gas development priorities and concern for the environment are integrated within strategic planning and management frameworks, and how associated conflict is addressed, in a case study of the Yukon. Because substantial ground-based oil and gas activity is yet to occur in the territory, a thorough understanding of the institutions and institutional arrangements set to govern future oil and gas development is a valuable tool for gauging the capacity to integrate these priorities. Therefore, this thesis employs the Institutional Analysis and Development (IAD) framework to analyze the legislation, regulations, policies, and institutions …


An Analysis Of Social Aspects Of Forest Stewardship Council Forest Certification In Three Ontario Case Studies, Melanie Venne Jan 2007

An Analysis Of Social Aspects Of Forest Stewardship Council Forest Certification In Three Ontario Case Studies, Melanie Venne

Theses and Dissertations (Comprehensive)

Forest certification is a market-based tool whereby forest management is evaluated against a set of standards that consider environmental, economic and social elements of sustainability. Certificiation is therefore a means of providing customers with the assurance that forest products are originating from sustainability managed forests. It grew out of the ideal of sustainable forest management (SFM) and pulls from its predecessor the concept of multiple dimensions of sustainability. The focus of this project was the international forest certification scheme Forest Stewardship Council (FSC).

A comparative case study approach was used to examine the social implications of certification in three FSC …


Local And Regional-Scale Societal Dynamics In Grizzly Bear Conservation, Douglas Andrew Clark Jan 2007

Local And Regional-Scale Societal Dynamics In Grizzly Bear Conservation, Douglas Andrew Clark

Theses and Dissertations (Comprehensive)

Conserving grizzly bear populations is a significant challenge for wildlife managers throughout North America. Much fruitful research has been conducted on the biology of grizzlies, but the human dimensions of bear management remain poorly understood. This imbalance has created conflicts between management agencies and local inhabitants that can jeopardize ecosystem management and planning programs in which grizzlies often feature as key components. Broadly, the goal of this study was to understand how and why such conflicts occur. Qualitative data analysis methods and the policy sciences' interdisciplinary problem analysis framework, along with insights from adaptive governance and co-management concepts, resilience theory, …


Assessment Of Marine And Coastal Pollution A Long The Eastern Coast, United Arab Emirates (Uae), Shaheera Ali Juma Ali Bahwan Jan 2007

Assessment Of Marine And Coastal Pollution A Long The Eastern Coast, United Arab Emirates (Uae), Shaheera Ali Juma Ali Bahwan

Theses

The present study aims to quantifying and assessing the orgasmic and

Inorganic pollutants extents along eastern side of the United Arab

Emirates UAE offshore on the Gulf of Oman, which consist of Fujairah,

Khor Fakkan and Kalba. Rapid development and the highly usage of the

coastal region for industrial activities, sewage disposal and marine

transportation has led to obvious changes in sediments quality of the

marine environment. Twelve coastal sampling stations were selected to

cover the maximum area of the eastern side, three sampling stations were

selected from marine sediments and six sampling collected from spilled

oil near investigated area. …


Modeling The Dynamics Of Tritrophic Population Interactions, Andrew Paul Gutierrez, Johann Baumgärtner Jan 2007

Modeling The Dynamics Of Tritrophic Population Interactions, Andrew Paul Gutierrez, Johann Baumgärtner

All Peer-Reviewed Publications

Introduction Increasingly, population modeling and systems analysis are being used to examine the complex issues that are at the heart of CP/IPM (crop production and integrated pest management) and biological control. The design of economically sound and sustainable crop management strategies requires a thorough understanding of the whole production system including arthropod pests, pathogens, and weeds. More than three decades ago, Huffaker and Croft (1976) stressed the need to rely on systems analysis and interdisciplinary collaboration to accomplish this task. Soon the question arose as to how mathematical techniques employed in the analysis of physical systems could be adapted to …


Assessing Integration In Resource And Environmental Management In The Southwest Yukon, Madison S. Saunders Jan 2007

Assessing Integration In Resource And Environmental Management In The Southwest Yukon, Madison S. Saunders

Theses and Dissertations (Comprehensive)

This thesis investigates the theory and practice of integration in resource and environmental management. Research on integration is growing as a result of the escalating demands placed on resources, an increase in the quality and quantity of information available concerning the environment, and the increased involvement and coordination of partners and participants in resource and environmental decision-making. Focus is placed on several resource and environmental decision-making. Focus is placed on several resources and environmental management processes in the Southwest Yukon, including wildlife management, protected areas management, forest management and environmental assessment. A case study approach is utilized to examine the …


Factors Influencing The Spatial Distribution Of Natural Resource-Based Industries: The Softwood Lumber Industry In The United States South, Francisco Xavier Aguilar Jan 2007

Factors Influencing The Spatial Distribution Of Natural Resource-Based Industries: The Softwood Lumber Industry In The United States South, Francisco Xavier Aguilar

LSU Doctoral Dissertations

Expanding on the Theory of Location, New Economic Geography, and Porter's Theory of Clusters this dissertation attempts to identify key factors influencing the location of firms in a resource-based industry. The softwood lumber industry in the United States is used as a case study to test several hypotheses concerning these theories. Two U.S. regions, the West and the South, were selected for analysis because they account for over 70 percent of U.S lumber manufacturing capacity. A multi-disciplinary research approach involved three-stages. First, self-reported preferences were analyzed using common factor and conjoint analyses for preferences for location attributes. Surveys were sent …


Mosquito Larval Habitats In A Semiarid Ecosystem In Eritrea: Impact Of Larval Habitat Management On Anopheles Arabiensis Population, Josephat Shililu, Charles Mbogo, Tewolde Ghebremeskel, John Githure, Robert Novak Jan 2007

Mosquito Larval Habitats In A Semiarid Ecosystem In Eritrea: Impact Of Larval Habitat Management On Anopheles Arabiensis Population, Josephat Shililu, Charles Mbogo, Tewolde Ghebremeskel, John Githure, Robert Novak

All Peer-Reviewed Publications

This study investigated the impact of larval management and the temporal variation in larval productivity in Eritrea, a semiarid ecosystem. Results of this study show that mosquito breeding persists throughout the year mainly in stream bed pools. Anopheles arabiensis production in the ephemeral natural aquatic habitats such the streambed pools was high throughout the year and negatively associated with rainfall (r = -0.288, P = 0.047). High densities of An. arabiensis larvae were also recorded from canals and drainage channels at wells and communal water supply points. The numerous water supply locations and wells help sustain malaria transmission by serving …