Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2008

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 2191 - 2220 of 13113

Full-Text Articles in Entire DC Network

Newsroom, Georgia Southern University Sep 2008

Newsroom, Georgia Southern University

Newsroom (2006-2023)

  • Georgia Southern Professor Maps Method to Help Protect Health of Population


Spectrum, Volume 25, Issue 3, Sacred Heart University Sep 2008

Spectrum, Volume 25, Issue 3, Sacred Heart University

Newspapers (Obelisk & Spectrum)

High-profile guests visit university -- Student-run radio station hears major changes -- “Transcendent & Sublime” now showing in The Gallery of Contemporary Art -- 20 students lend their voices for educational online video Cable in the Classroom www,ciconline.org/ eLECTION -- Time capsule will remain sealed for 55 years, will be placed in the wall of the new chapel -- In the Spotlight: Shining senior Kaitlin McNally -- Pioneer football cruises past Iona -- Women's soccer picks up first win of season -- Men's Soccer ties Yale 0-0 -- Men’s basketball captain for the 2008-09 season is graduate student Joey Henley …


The East Texan, 2008-09-25, Texas A&M University-Commerce Sep 2008

The East Texan, 2008-09-25, Texas A&M University-Commerce

All Issues

Volume XCIII, number 5 of The East Texan, a student newspaper published at Texas A&M University-Commerce.


Connectivity And Genetic Structure In Coral Reef Ecosystems: Modeling And Analysis, Johnathan T. Kool Sep 2008

Connectivity And Genetic Structure In Coral Reef Ecosystems: Modeling And Analysis, Johnathan T. Kool

Open Access Dissertations

This dissertation examines aspects of the relationship between connectivity and the development of genetic structure in subdivided coral reef populations using both simulation and algebraic methods. The first chapter develops an object-oriented, individual based method of simulating the dynamics of genes in subdivided populations. The model is then used to investigate how changes to different components of population structure (e.g., connectivity, birth rate, population size) influence genetic structure through the use of autocorrelation analysis. The autocorrelograms also demonstrate how relationships between populations change at different spatial and temporal scales. The second chapter uses discrete multivariate distributions to model the relationship …


Volume 100 Issue4, Southwestern Oklahoma State University Sep 2008

Volume 100 Issue4, Southwestern Oklahoma State University

The Southwestern - Archive

No abstract provided.


Spartan Daily, September 24, 2008, San Jose State University, School Of Journalism And Mass Communications Sep 2008

Spartan Daily, September 24, 2008, San Jose State University, School Of Journalism And Mass Communications

Spartan Daily (School of Journalism and Mass Communications)

Volume 131, Issue 15


Sept. 24, 2008 Cal Poly Report, Public Affairs Office Sep 2008

Sept. 24, 2008 Cal Poly Report, Public Affairs Office

Cal Poly Report

No abstract provided.


Prospectus, September 24, 2008, Alawnna Mcdaniel, Aaron Geiger, Cassandra Cunningham, Sean Hermann, Briana Stodden, Chuck Shepherd, Jonas Dees, Ken Smith, Nada Youssef, Judy Seyb Sep 2008

Prospectus, September 24, 2008, Alawnna Mcdaniel, Aaron Geiger, Cassandra Cunningham, Sean Hermann, Briana Stodden, Chuck Shepherd, Jonas Dees, Ken Smith, Nada Youssef, Judy Seyb

Prospectus 2008

No abstract provided.


Fatigue Testing Of Three Peristernal Median Sternotomy Closure Techniques, Cameron Wangsgard, David J. Cohen, Lanny V. Griffin Sep 2008

Fatigue Testing Of Three Peristernal Median Sternotomy Closure Techniques, Cameron Wangsgard, David J. Cohen, Lanny V. Griffin

Biomedical Engineering

Failure of a sternotomy closure because of closure system fatigue is a complication that may result in dehiscence and put the individual at risk for serious complications. The purpose of this study was to assess the fatigue performance of three peristernal median sternotomy closure techniques (figure-of-eight stainless-steel wires, figure-of-eight stainless-steel cables, or Pectofix Dynamic Sternal Fixation [DSF] stainless-steel plates) in order to quantify the potential risk of fatigue failure of these devices when subject to cyclic loads in physiologically relevant loading directions.


Rotunda - Vol 87, No 4 - Sept 24, 2008, Longwood University Sep 2008

Rotunda - Vol 87, No 4 - Sept 24, 2008, Longwood University

Rotunda

No abstract provided.


The Winonan, Winona State University Sep 2008

The Winonan, Winona State University

The Winonan - 2000s

No abstract provided.


The Daily Gamecock, Wednesday, September 24, 2008, University Of South Carolina, Office Of Student Media Sep 2008

The Daily Gamecock, Wednesday, September 24, 2008, University Of South Carolina, Office Of Student Media

September

No abstract provided.


College Voice Vol. 33 No. 2, Connecticut College Sep 2008

College Voice Vol. 33 No. 2, Connecticut College

2008-2009

No abstract provided.


Exponent, Vol. 39, Iss. 9, 2008-01-16, University Of Alabama In Huntsville Sep 2008

Exponent, Vol. 39, Iss. 9, 2008-01-16, University Of Alabama In Huntsville

2008

No abstract provided.


The Lumberjack, September 24, 2008 Sep 2008

The Lumberjack, September 24, 2008

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.


The Lumberjack, September 24, 2008 Sep 2008

The Lumberjack, September 24, 2008

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.


The Spinnaker Vol. 32 No. 8, University Of North Florida Sep 2008

The Spinnaker Vol. 32 No. 8, University Of North Florida

Spinnaker

Student newspaper for the UNF community.


The Lumberjack, September 24, 2008 Sep 2008

The Lumberjack, September 24, 2008

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.


Do Yellow-Pine Chipmunks Prefer To Recover Their Own Caches?, Stephen B. Vander Wall, Cynthia J. Downs, Mark S. Enders, Ben A. Waitman Sep 2008

Do Yellow-Pine Chipmunks Prefer To Recover Their Own Caches?, Stephen B. Vander Wall, Cynthia J. Downs, Mark S. Enders, Ben A. Waitman

Western North American Naturalist

Many rodent species scatter hoard seeds within a home range shared with other seed-caching animals. An animal foraging for cached food is likely to encounter the caches of other animals, as well as its own. This study asks the following question: do animals recover primarily their own caches, do they conserve their own caches and search for the caches of other animals, or do they search indiscriminately for cached seeds regardless of who buried them? We tested these ideas using 8 yellow-pine chipmunks inside rodent-proof enclosures. We allowed each subject to cache radioactive seeds, we located the seed caches, and …


Low Specific Conductivity Limits Growth And Survival Of The New Zealand Mud Snail From The Upper Owens River, California, David B. Herbst, Michael T. Bogan, Robert A. Lusardi Sep 2008

Low Specific Conductivity Limits Growth And Survival Of The New Zealand Mud Snail From The Upper Owens River, California, David B. Herbst, Michael T. Bogan, Robert A. Lusardi

Western North American Naturalist

The New Zealand mud snail (NZMS), Potamopyrgus antipodarum (Gray), is an invasive species of aquatic snail that is becoming widespread in inland and coastal waters of the western United States. The New Zealand mud snail can have significant impacts on stream ecosystems, as they may consume a large fraction of available algae production and compete with and displace native invertebrates. Even though the distribution of this species is expanding, the habitat conditions conducive to invasion are incompletely understood. Surveys following the NZMS invasion in the Upper Owens River, California, indicated that the snail may be excluded from waters where dissolved …


Central Florida Future, Vol. 40 No. 81, September 24, 2008 Sep 2008

Central Florida Future, Vol. 40 No. 81, September 24, 2008

Central Florida Future

State schools raise money together; Culture found underground; Cracking bricks shut down Union; Senate elections to start Monday.


The Colby Echo (2008-09-24), Colby College Sep 2008

The Colby Echo (2008-09-24), Colby College

The Colby Echo

Published by the students of Colby College since 1877, The Colby Echo is the weekly, editorially independent student-run newspaper of Colby College in Waterville, Maine. Published monthly, 1877-1886; semi-monthly, 1886-1897; and weekly, during the academic year, 1898-present.


Calf Finishing Versus Background/Yearling Finishing Systems: Where’S The Profit?, Rebecca M. Small, Darrell R. Mark Sep 2008

Calf Finishing Versus Background/Yearling Finishing Systems: Where’S The Profit?, Rebecca M. Small, Darrell R. Mark

Cornhusker Economics

As corn prices have more than doubled in the last two years, cattle producers continually look for alternatives to finishing calves exclusively in feedlots on high concentrate rations. Historically, Nebraska feeders have placed a high proportion of fall-weaned calves on feed in October and November and sold them as fed cattle in May. However, as corn prices increase, livestock producers have more incentive to background calves during the winter and following summer on forages, and delay placing the cattle on feed until they are long yearlings at the end of the summer grazing season.

Based on University of Nebraska–Lincoln research …


Consequences Of Cattle Introduction In A Shrubsteppe Ecosystem: Indirect Effects On Desert Horned Lizards (Phrynosoma Platyrhinos), T.A. Scott Newbold, James A. Macmahon Sep 2008

Consequences Of Cattle Introduction In A Shrubsteppe Ecosystem: Indirect Effects On Desert Horned Lizards (Phrynosoma Platyrhinos), T.A. Scott Newbold, James A. Macmahon

Western North American Naturalist

Livestock grazing is one of the most common forms of land use in the western United States, yet scientists struggle to accurately predict grazing impacts. This study examined the initial response of desert horned lizards (Phrynosoma platyrhinos) to cattle introduction at a site in northwestern Utah. We sampled 21 grazed and 7 ungrazed study plots before grazing (2001), after grazing (2002), and 1 year after the cessation of grazing (2003). We were specifically interested in whether grazing influenced lizards through biotic or abiotic pathways. Lizard response (based on scat counts) to the initial impact of grazing (<6 months after cattle introduction) suggests that lizards abandoned areas protected from grazing (i.e., ungrazed exclosures) presumably in favor of grazed areas. Avoidance of ungrazed plots by lizards coincided with a decline in shrub and grass cover on grazed plots and with no significant change in relative abundance or richness of prey (ants) on grazed plots. In 2003, one year after cattle had been removed from the site, prey species richness declined on ungrazed plots, and percent bare ground increased on previously grazed plots; however, we detected no response of lizards to these changes. Overall, these results add to a growing consensus that responses by small vertebrates to grazing are largely the result of changes to habitat structure (i.e., vegetation cover), rather than to changes in prey availability. Importantly, results from our relatively unique evaluation of initial …


Efficiency Of Various Methods Used To Detect Presence Of Pygmy Rabbits In Summer, Eveline S. Larrucea, Peter F. Brussard Sep 2008

Efficiency Of Various Methods Used To Detect Presence Of Pygmy Rabbits In Summer, Eveline S. Larrucea, Peter F. Brussard

Western North American Naturalist

We compared pellet, burrow, visual, and camera surveys to identify a method with high efficiency for detecting current pygmy rabbit (Brachylagus idahoensis) presence at a site in summer. We used 20 known occupied sites in 4 regions of northern Nevada and eastern California for the comparison. All leporid species that occurred in the region were distinguishable in photographs, and camera surveys had a 95% detection efficiency for pygmy rabbits. Burrows were detected at 85% of total sites; however, burrows that appeared active were found at only 55% of total sites. Pygmy rabbit pellets were found at all sites, …


Polygynous Mating Behavior In The Endangered Tehuantepec Jackrabbit (Lepus Flavigularis), Tamara Rioja, Consuelo Lorenzo, Eduardo Naranjo, Laura Scott, Arturo Carrillo-Reyes Sep 2008

Polygynous Mating Behavior In The Endangered Tehuantepec Jackrabbit (Lepus Flavigularis), Tamara Rioja, Consuelo Lorenzo, Eduardo Naranjo, Laura Scott, Arturo Carrillo-Reyes

Western North American Naturalist

This is the 1st effort to determine the mating behavior of the Tehuantepec jackrabbit (Lepus flavigularis), an endangered endemic species from southern Mexico whose distribution is limited to the Isthmus of Tehuantepec region. Between June 2006 and December 2007, observations of 60 adult radio-marked jackrabbits were carried out in Santa María del Mar, Oaxaca, Mexico. Direct observations showed that the breeding season of the Tehuantepec jackrabbit lasted an average of 200 days per year, with a high-intensity period during the rainy season (May–October); we also confirmed a polygamous reproductive behavior for this species. More importantly, we showed that …


Influence Of Pocket Gopher Mounds On Nonnative Plant Establishment In A Shrubsteppe Ecosystem, G. Page Kyle, Andrew Kulmatiski, Karen H. Beard Sep 2008

Influence Of Pocket Gopher Mounds On Nonnative Plant Establishment In A Shrubsteppe Ecosystem, G. Page Kyle, Andrew Kulmatiski, Karen H. Beard

Western North American Naturalist

Soil disturbances across a wide range of spatial scales have been found to promote the establishment of invasive plant species. This study addresses whether mounds built by northern pocket gophers (Thomomys talpoides) in the shrubsteppe environment of north central Washington are facilitating plant invasions into native-dominated fields. Research was conducted in native-dominated plant communities adjacent to ex-arable, nonnative-dominated fields. To determine the effect of mounds on plant growth, we recorded new establishment and persistence of all plant species over 2 growing seasons on 10–19 mound and intermound areas in 10 fields. Nonnative plant establishment was not affected by …


Use Of A Mine By Eastern Pipistrelles (Perimyotis Subflavus) In East Central Nebraska, Jason P. Damm, Keith Geluso Sep 2008

Use Of A Mine By Eastern Pipistrelles (Perimyotis Subflavus) In East Central Nebraska, Jason P. Damm, Keith Geluso

Western North American Naturalist

The eastern pipistrelle (Perimyotis subflavus) is relatively common and widespread throughout the eastern United States. In recent decades, the distribution of P. subflavus has expanded westward across the Great Plains, and little information exists on its natural history in this region. In east central Nebraska, we monitored the use of a mine by eastern pipistrelles for >1 year. A few males occupied the roost in summer, but during the period of hibernation (late September–early May), the mine was used by at least 30 individuals composed of both sexes. Most individuals first entered the mine during late September through …


Observations Of Shoaling And Feeding Behavior Of June Sucker, Chasmistes Liorus, In A Refuge Population, Eric J. Billman Sep 2008

Observations Of Shoaling And Feeding Behavior Of June Sucker, Chasmistes Liorus, In A Refuge Population, Eric J. Billman

Western North American Naturalist

Observations of shoaling and feeding behavior of the zooplanktivorous June sucker, Chasmistes liorus, were made during summer 2003 in Red Butte Reservoir, Utah. Water clarity limited observations to 0.5–1.5 m below the water surface. Schools of adult suckers, ranging from a few to >200 fish, were observed on 20 days from May to September. I classified them as schools rather than shoals because the groups moved synchronously rather than appearing simply as an aggregation of fish. These schools were near the water surface, generally in areas of the reservoir with a water depth of >3 m, and presumably fed …


The Life Cycles Of Claassenia Sabulosa And Hesperoperla Pacifica (Plecoptera: Perlidae) In Two Colorado Streams, Richard A. Thorp, Boris C. Kondratieff, Emily C. Thorp, Patrick B. Odenbeck, Michael J. Jarrett Sep 2008

The Life Cycles Of Claassenia Sabulosa And Hesperoperla Pacifica (Plecoptera: Perlidae) In Two Colorado Streams, Richard A. Thorp, Boris C. Kondratieff, Emily C. Thorp, Patrick B. Odenbeck, Michael J. Jarrett

Western North American Naturalist

We compared the life cycles of Claassenia sabulosa (Banks 1900) and Hesperoperla pacifica (Banks 1900) (Plecoptera: Perlidae) in allopatry and sympatry by studying 4 populations in 3 streams of the South Platte River Watershed, Colorado. We estimated 2-year life cycles for both C. sabulosa and H. pacifica in allopatry and sympatry. Evidence of egg diapausing and extended larval recruitment was noted for both species in allopatry and sympatry. There were no apparent differences in larval growth, larval recruitment, or adult emergence periodicity between allopatric and sympatric populations of C. sabulosa. In contrast, allopatric and sympatric H. pacifica populations exhibited differences …