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Full-Text Articles in Entire DC Network
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, January 1, 2009 To March 31, 2009, Margaret N. Rees
Lake Mead National Recreation Area Vegetation Monitoring And Analysis: Quarterly Progress Report, January 1, 2009 To March 31, 2009, Margaret N. Rees
Vegetation Monitoring
Executive Summary
- The Weed Sentry program surveyed over 126 miles (981 acres) of federal land by vehicle and foot in Clark County for incipient populations of exotic plants.
- Weed Sentry staff continue to survey never before surveyed sites, and trails and regions within Red Rock and Sloan Canyon NCAs requested by BLM managers.
- The 2009 rare plant monitoring was initiated and in progress.
- Northshore Road reconstruction monitoring was initiated and active monitoring and care of salvaged plants was performed by UNLV staff.
- Rana onca vegetation monitoring and reporting was completed.
Poster Session, Kentucky Water Resources Research Institute, University Of Kentucky
Poster Session, Kentucky Water Resources Research Institute, University Of Kentucky
Kentucky Water Resources Annual Symposium
- Kentucky Agriculture Water Quality Act Web Tool, Amanda Gumbert, UK Cooperative Extension Service
- Cane Run Watershed Council – An Adventure in Watershed Involvement, Amanda Gumbert, UK Cooperative Extension Service
- Preliminary Comparison of Nutrient and Total Suspended Sediment Data on Water Samples Collected using Teledyne Portable Autosampler and EPA Field Methods for Wadeable Streams, Susan Brown, April Haight and others, Institute for Regional Analysis and Public Policy, Morehead State University
- Groundwater Protection Plans, Patricia Keefe, Kentucky Division of Water
- Use of Geophysical Techniques to Locate a Karst Conduit in the Cane Run – Royal Spring Basin, Kentucky …
Session 1b, Kentucky Water Resources Research Institute, University Of Kentucky
Session 1b, Kentucky Water Resources Research Institute, University Of Kentucky
Kentucky Water Resources Annual Symposium
- Kohonen Self Organizing Map for Analyzing Rainfall and Inflow Patterns with Indiana Reservoir Sites, Chandra Viswanathan and Nimisha Gupta, Dept Civil Engineering, Purdue University Calumet, Hammond, IN
- Watershed Clustering Based on Geomorphic and Human Induced Landscape Modifications: A Central Kentucky Example, Brian Lee, Angela Schörgendorfer, and Collin Linebach, College of Agriculture, UK
- “True Relief”? Asynchronous Topographic Change Detection and Concomitant Land Cover and Hydrologic Implications, Demetrio Zourarakis, Kentucky Division of Geographic Information
- Cumulative Impacts Assessments for 404 Mining Permits, A Watershed Approach, J. Steven Gardner, Engineering Consulting Services, Inc., Lexington, KY
Proceedings Of 2009 Kentucky Water Resources Annual Symposium, Kentucky Water Resources Research Institute, University Of Kentucky
Proceedings Of 2009 Kentucky Water Resources Annual Symposium, Kentucky Water Resources Research Institute, University Of Kentucky
Kentucky Water Resources Annual Symposium
This conference was planned and conducted as part of the state water resources research annual program with the support and collaboration of the Department of the Interior, U.S. Geological Survey and the University of Kentucky Research Foundation, under Grant Agreement Number 06HQGR0087.
The views and conclusions contained in this document and presented at the symposium are those of the abstract authors and presenters and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government or other symposium organizers and sponsors.
Optics And Remote Sensing Of Bahamian Carbonate Sediment Whitings And Potential Relationship To Wind-Driven Langmuir Circulation, H. M. Dierssen, Richard C. Zimmerman, David J. Burdige
Optics And Remote Sensing Of Bahamian Carbonate Sediment Whitings And Potential Relationship To Wind-Driven Langmuir Circulation, H. M. Dierssen, Richard C. Zimmerman, David J. Burdige
OES Faculty Publications
Regions of milky white seas or "whitings" periodically occur to the west of Andros Island along the Great Bahama Bank where the bottom sediment consists of fine-grained aragonite mud. We present measurements of inherent optical properties within a sediment whiting patch and discuss the potential for monitoring the frequency, extent, and quantity of suspended matter from ocean colour satellite imagery. Sea spectral reflectance measured in situ and remotely from space revealed highly reflective waters elevated across the visible spectrum (i.e., "whitened") with a peak at 490 nm. Particulate backscattering was an order of magnitude higher than that measured at other …
Species Delimitation In Lemurs: Multiple Genetic Loci Reveal Low Levels Of Species Diversity In The Genus Cheirogaleus, Linn F. Groeneveld, David W. Weisrock, Rodin M. Rasoloarison, Anne D. Yoder, Peter M. Kappeler
Species Delimitation In Lemurs: Multiple Genetic Loci Reveal Low Levels Of Species Diversity In The Genus Cheirogaleus, Linn F. Groeneveld, David W. Weisrock, Rodin M. Rasoloarison, Anne D. Yoder, Peter M. Kappeler
Biology Faculty Publications
BACKGROUND: Species are viewed as the fundamental unit in most subdisciplines of biology. To conservationists this unit represents the currency for global biodiversity assessments. Even though Madagascar belongs to one of the top eight biodiversity hotspots of the world, the taxonomy of its charismatic lemuriform primates is not stable. Within the last 25 years, the number of described lemur species has more than doubled, with many newly described species identified among the nocturnal and small-bodied cheirogaleids. Here, we characterize the diversity of the dwarf lemurs (genus Cheirogaleus) and assess the status of the seven described species, based on phylogenetic and …
Revision Of The Genus Chalcasthenes Arrow (Coleoptera: Scarabaeidae: Dynastinae: Oryctoderini) From The Solomon Islands, Mary Liz Jameson, Brett C. Ratcliffe
Revision Of The Genus Chalcasthenes Arrow (Coleoptera: Scarabaeidae: Dynastinae: Oryctoderini) From The Solomon Islands, Mary Liz Jameson, Brett C. Ratcliffe
University of Nebraska State Museum: Entomology Papers
Abstract The genus Chalcasthenes Arrow (Dynastinae: Oryctoderini), a scarab beetle genus endemic to the Solomon Islands, is reviewed. Based on examination of type specimens, the genus Strehlia Frey (Rutelinae: Rutelini: Parastasiina) is a new junior synonym of Chalcasthenes. The historical classification of these genera (either in the subfamily Dynastinae or Rutelinae) and character-based criteria for assigning the taxa to the Dynastinae are provided. We discuss character states that support the monophyly of members of the genus Chalcasthenes, comment on the distribution and biogeography of species in the genus and provide a key to species. The genus includes four …
Reintroduction Of The Chinese Tiger, Philip J. Nyhus, Urs Breitenmoser, Ron Tilson
Reintroduction Of The Chinese Tiger, Philip J. Nyhus, Urs Breitenmoser, Ron Tilson
Faculty Scholarship
No abstract provided.
Integrating Fluvial Geomorphology And Stream Ecology: Processes Shaping The Distribution Of Freshwater Mussels In Connecticut, Piyumi T. Obeysekara, Eric T. Schultz, Melinda Daniels, Jason Vokoun
Integrating Fluvial Geomorphology And Stream Ecology: Processes Shaping The Distribution Of Freshwater Mussels In Connecticut, Piyumi T. Obeysekara, Eric T. Schultz, Melinda Daniels, Jason Vokoun
EEB Articles
No abstract provided.
An Undescribed Gecko (Gekkonidae: Cyrtodactylus) From Deer Cave, Gunung Mulu National Park, Sarawak, With Comments On The Distribution Of Bornean Cave Geckos, Donald A. Mcfarlane, Joyce Lundberg, Keith Christenson
An Undescribed Gecko (Gekkonidae: Cyrtodactylus) From Deer Cave, Gunung Mulu National Park, Sarawak, With Comments On The Distribution Of Bornean Cave Geckos, Donald A. Mcfarlane, Joyce Lundberg, Keith Christenson
WM Keck Science Faculty Papers
Geckos of the genus Cyrtodactylus are a speciose group in Southeast Asia, with at least nine species known from the island of Borneo (Das & Ismail, 2001; Das, 2006). Of these species, Cyrtodactylus cavernicolus has the smallest known range and is therefore the most vulnerable, a status that is reflected in the species having been designated a Totally Protected Species in Sarawak. Confirmed records of C. cavernicolus are known only from Niah Cave, located in an isolated limestone block known as the Gunung Subis massif, approximately 13 km² in extent. The Niah Cave Gecko is presumed to be dependent on …
Blackbrush Shrublands: Fire Conditions And Solutions In The Mojave Desert, Lisa-Natalie Anjozian
Blackbrush Shrublands: Fire Conditions And Solutions In The Mojave Desert, Lisa-Natalie Anjozian
Joint Fire Science Program Briefs (2007-2012)
While mature stands of blackbrush present an almost continuous cover that appears to suppress other species, this ecosystem supports a greater array of different plant species than was previously thought. Fire can completely remove blackbrush cover, but it also results in reduced numbers of other native species, and increased dominance of non-native species such as annual grasses that can promote recurrent fi re and alter the fi re regime. Where blackbrush shrublands historically experienced intense fi res with a long fi re return interval, the non-native fi ne fuels that are now prevalent in many stands promote a greater rate …
From The Ground Up, Way Up: Measuring Live Fuel Moisture With Satellite Imagery To Fine-Tune Fire Modeling In Western Ecosystems, Rachel Clark
Joint Fire Science Program Briefs (2007-2012)
Remote sensing from space may well become one of the world’s most effective, accurate, and effi cient ways to assess fi re risk and thus manage large landscapes. The technology is evolving quickly, and researchers are busy keeping up. Some major western U.S. landscapes are just now being assessed for integrating remote sensing data with “on the ground” data that helps fi ne tune remote sensing models, and helps researchers assess which models work best. Drs. Jenny Rechel and Dar Roberts have worked together to gather Live Fuel Moisture (LFM) data from seven major western landscapes with similar mixed vegetation …
Pine Chronologies In Central Appalachian Forests: Fiery Implications, Rachel Clark
Pine Chronologies In Central Appalachian Forests: Fiery Implications, Rachel Clark
Joint Fire Science Program Briefs (2007-2012)
Eastern forests are lush, humid and dominated by hardwoods, relative to fire-prone forests of the West. But until recently, there was little clear evidence for the fi re history of central Appalachia. Specifi cally, there were no tree-ring chronologies depicting fi re history. Dr. Henri Grissino-Mayer of the University of Tennessee and Dr. Charles Lafon of Texas A&M University along with their colleagues found remnant pine stands hidden in the George Washington and Jefferson National Forests of Virginia. They painstakingly acquired more than 600 pine cross sections, and discovered that not only did fire once occur in these forests, but …
Book Review Of The Wood Midges (Diptera: Cecidomyiidae: Lestremiinae) Of Fennoscandia And Denmark By Mathias Jaschhof And Catrin Jaschhof, Raymond Gagne
USDA Systematic Entomology Laboratory
The present study is the result of a four-year project supported by the Swedish Taxonomy Initiative to collect and systematize the Lestremiinae. It fleshes out the skeleton presented in Jaschhof (1998) of this group for the Palearctic Region, bringing to bear the broad knowledge gained from the authors’ studies since 1998 from Japan, Malaysia, South Africa, and New Zealand and Mathias Jaschhof’s subsequent studies of the Mamaev types. More species of wood midges (n = 203) are now known from Sweden than any other country or all of the Western Hemisphere. The fact that until the 1990s only four species …
The Role Of Landscape Connectivity In Assembling Exotic Plant Communities: A Network Analysis, Emily S. Minor, Samantha M. Tessel, Katharina A.M. Engelhardt, Todd R. Lookingbill
The Role Of Landscape Connectivity In Assembling Exotic Plant Communities: A Network Analysis, Emily S. Minor, Samantha M. Tessel, Katharina A.M. Engelhardt, Todd R. Lookingbill
Geography and the Environment Faculty Publications
Landscape fragmentation and exotic species invasions are two modern-day forces that have strong and largely irreversible effects on native diversity worldwide. The spatial arrangement of habitat fragments is critical in affecting movement of individuals through a landscape, but little is known about how invasive species respond to landscape configuration relative to native species. This information is crucial for managing the global threat of invasive species spread. Using network analysis and partial Mantel tests to control for covarying environmental conditions, we show that forest plant communities in a fragmented landscape have spatial structure that is best captured by a network representation …
Botany At Eastern Illinois University, Marissa C. Jernegan, Nancy E. Coutant, Janice M. Coons
Botany At Eastern Illinois University, Marissa C. Jernegan, Nancy E. Coutant, Janice M. Coons
Faculty Research & Creative Activity
Eastern Illinois University was established in 1899, and from its beginning the importance of the botanical sciences was recognized. Two terms of botany were required for the four year program. Dr. Otis W. Caldwell, a botanist, was one of the original faculty members. He taught all of the biology courses and initiated the acquisition of a greenhouse. Caldwell was the first in a series of talented and dedicated botany professors including Edgar N. Transeau, Ernest L. Stover, Hiram F. Thut and John E. Ebinger. These and many other professors incorporated a field component into almost all classes. This dedication to …
Iowa Academy Of Science: The New Bulletin, V05n4, Winter 2009, Iowa Academy Of Science
Iowa Academy Of Science: The New Bulletin, V05n4, Winter 2009, Iowa Academy Of Science
New Bulletin
Inside This Issue:
--Message from the Executive Director
--President's Message: Each One, Reach One
--122nd Annual Meeting
--Images from the 2009 ISTS Fall Conference
--Excellence in Science Teaching Awards (ESTA)
--Distinguished Science Awards
--IJAS Silent Auction
--Announcements, Events & Deadlines
--IAS Corporate Memberships
Hedging To Safety: A Political Economy Of Derivatives, Risk And Agriculture In The Developing World, Sasha Coler Breger Bush
Hedging To Safety: A Political Economy Of Derivatives, Risk And Agriculture In The Developing World, Sasha Coler Breger Bush
Electronic Theses and Dissertations
It has become common for researchers and international development institutions to recommend the use of derivative instruments to developing country farmers and policymakers as a means of insuring agricultural incomes against the threats posed by volatile global commodity prices. Despite such enthusiasm, very little research to date examines whether or not derivative instruments actually can deliver income support to agricultural producers who face commodity price risk. This dissertation evaluates these recommendations, focusing upon the potential income security benefits of hedging with futures instruments for coffee farmers in Mexico, Brazil and Uganda during the 1998-2002 coffee crisis. The three-part quantitative and …
Bringing Home The Trash: Do Differences In Foraging Lead To Increased Plastic Ingestion In Laysan Albatrosses?, L C. Young, C Vanderlip, D C. Duffy, V Afanasyev, Scott A. Shaffer
Bringing Home The Trash: Do Differences In Foraging Lead To Increased Plastic Ingestion In Laysan Albatrosses?, L C. Young, C Vanderlip, D C. Duffy, V Afanasyev, Scott A. Shaffer
Faculty Publications, Biological Sciences
When searching for prey, animals should maximize energetic gain, while minimizing energy expenditure by altering their movements relative to prey availability. However, with increasing amounts of marine debris, what once may have been ‘optimal’ foraging strategies for top marine predators, are leading to sub-optimal diets comprised in large part of plastic. Indeed, the highly vagile Laysan albatross (Phoebastria immutabilis) which forages throughout the North Pacific, are well known for their tendency to ingest plastic. Here we examine whether Laysan albatrosses nesting on Kure Atoll and Oahu Island, 2,150 km apart, experience different levels of plastic ingestion. Twenty two geolocators were …
Alpine Ecology Of A C4 Grass, Muhlenbergia Richardsonis In The White Mountains Of California, Archie Thomas Meyer
Alpine Ecology Of A C4 Grass, Muhlenbergia Richardsonis In The White Mountains Of California, Archie Thomas Meyer
Theses Digitization Project
The purpose of this thesis was to understand how this unusual C₄ alpine grass, Muhlenbergia Richardsonis, persists in the alpine zone along the western slope of California's White Mountains.
Bryophytes Of Adjacent Serpentine And Granite Outcrops On The Deer Isles, Maine, U.S.A, Laura R. E. Briscoe, Tanner B. Harris, William Broussard, Eva Dannenberg, Fred C. Olday, Nishanta Rajakaruna
Bryophytes Of Adjacent Serpentine And Granite Outcrops On The Deer Isles, Maine, U.S.A, Laura R. E. Briscoe, Tanner B. Harris, William Broussard, Eva Dannenberg, Fred C. Olday, Nishanta Rajakaruna
Biological Sciences
The serpentine-substrate effect is well documented for vascular plants, but the literature for bryophytes is limited. The majority of literature on bryophytes in extreme geoedaphic habitats focuses on the use of species as bioindicators of industrial pollution. Few attempts have been made to characterize bryophyte floras on serpentine soils derived from peridotite and other ultramafic rocks. This paper compares the bryophyte floras of both a peridotite and a granite outcrop from the Deer Isles, Hancock County, Maine, and examines tissue elemental concentrations for select species from both sites. Fifty-five species were found, 43 on serpentine, 26 on granite. Fourteen species …
An Inventory And Condition Survey Of The Lower Murchison River Area, Western Australia, P Hennig
An Inventory And Condition Survey Of The Lower Murchison River Area, Western Australia, P Hennig
Technical Bulletins
The inventory and condition survey of the lower Murchison River area, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 2002 and 2003, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. This survey report presents …
Citizen Sensing, Social Signals, And Enriching Human Experience, Amit P. Sheth
Citizen Sensing, Social Signals, And Enriching Human Experience, Amit P. Sheth
Kno.e.sis Publications
In this article, I introduce the exciting paradigm of citizen sensing enabled by mobile sensors and human computing - that is, humans as citizens on the ubiquitous Web, acting as sensors and sharing their observations and views using mobile devices and Web 2.0 services.
What Is New On The Animal Protection Radar?, John Hadidian
What Is New On The Animal Protection Radar?, John Hadidian
Animal Welfare Collection
American attitudes toward wildlife have often been cast as falling within an urban/rural dichotomy that separates protectionist from utilitarian value orientations. Long held as a major challenge to wildlife managers the urban/rural dichotomy may be yielding to change as new attitude and value orientations arise from direct conflicts people have with wild animals as well as from a generational disenfranchisement of young people who lack direct experience with the outdoors. Both may loom as larger challenges for the future and shift the focus of once opposing interests more toward efforts to establish cooperation. Currently, much of the disagreement over wildlife …
"Freshwater Crabs And Shrimps (Crustacea: Decapoda) Of The Nile Basin" , Neil Cumberlidge
"Freshwater Crabs And Shrimps (Crustacea: Decapoda) Of The Nile Basin" , Neil Cumberlidge
Book Sections/Chapters
No abstract provided.
Bats And Bell Holes: The Microclimatic Impact Of Bat Roosting, Using A Case Study From Runaway Bay Caves, Jamaica, Joyce Lundberg, Donald A. Mcfarlane
Bats And Bell Holes: The Microclimatic Impact Of Bat Roosting, Using A Case Study From Runaway Bay Caves, Jamaica, Joyce Lundberg, Donald A. Mcfarlane
WM Keck Science Faculty Papers
The microclimatic effect of bats roosting in bell holes (blind vertical cylindrical cavities in cave roofs) in Runaway Bay Caves, Jamaica, was measured and the potential impact of their metabolism on dissolution modelled. Rock temperature measurements showed that bell holes with bats get significantly hotter than those without bats during bat roosting periods (by an average of 1.1 °C). The relationship is clearest for bell holes with more than about 300 g aggregate bat body mass and for bell holes that are moderately wide and deep, of W:D ratio between 0.8 and 1.6. Measurement of temperature decay after abandonment showed …
A Note On The Thermal Ecology And Foraging Behaviour Of The Egyptian Fruit Bat, Rousettus Aegyptiacus, At Mt. Elgon, Kenya, Donald A. Mcfarlane, Joyce Lundberg
A Note On The Thermal Ecology And Foraging Behaviour Of The Egyptian Fruit Bat, Rousettus Aegyptiacus, At Mt. Elgon, Kenya, Donald A. Mcfarlane, Joyce Lundberg
WM Keck Science Faculty Papers
The Egyptian fruit bat, Rousettus aegyptiacus, is an abundant and widely distributed African pteropid (Nowak, 1999). The species is unusual amongst pteropids in being an obligate cave-dweller (Kwiecinski & Griffiths, 1999), sometimes reaching colony sizes in the thousands (Kingdon, 1974). In the caves of Mt. Elgon National Park, western Kenya (1° 08′N, 34° 39′E), precision temperature loggers placed in major Rousettus roosts and intervening passages have allowed us to precisely monitor bat emergence and return times.
The major caves of Mt. Elgon National Park consist of geophagically modified tunnels and collapse chambers cut into Miocene-aged pyroclastic strata (Lundberg & …
Birds Of The Great Plains: Frontmatter, Contents, Preface, Introduction, Paul A. Johnsgard
Birds Of The Great Plains: Frontmatter, Contents, Preface, Introduction, Paul A. Johnsgard
Birds of the Great Plains (Revised Edition, 2009) by Paul Johnsgard
Nebraska and its adjoining states represent a nearly unique ornithological situation. Although they are almost entirely grassland, the plains states are variably dissected by river-bottom forests that provide natural passageways for forest-adapted species to enter the plains and sometimes to cross them. Although eastern and western bird faunas tend to be separated by the plains, they often mingle to some degree, resulting in competition and sometimes hybridization. The central Great Plains thus are exceedingly interesting from ecological, evolutionary, and zoogeographic perspectives, and the plains bird fauna is significant both for what is present and for what has been variably excluded. …
On The Law Which Has Regulated The Introduction Of New Species (1855), Alfred Russel Wallace
On The Law Which Has Regulated The Introduction Of New Species (1855), Alfred Russel Wallace
Alfred Russel Wallace Classic Writings
No abstract provided.
Cross-Talk In The Gut, Jennifer E. Dinalo, David A. Relman
Cross-Talk In The Gut, Jennifer E. Dinalo, David A. Relman
Faculty and Staff Publications
Modulation of host signaling by the products of microbial activity in the gut may affect weight gain and fat formation.