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Articles 1651 - 1680 of 3025
Full-Text Articles in Entire DC Network
Long-Term Fire History In Great Basin Sagebrush Reconstructed From Macroscopic Charcoal In Spring Sediments, Newark Valley, Nevada, Scott Mensing, Stephanie Livingston, Pat Barker
Long-Term Fire History In Great Basin Sagebrush Reconstructed From Macroscopic Charcoal In Spring Sediments, Newark Valley, Nevada, Scott Mensing, Stephanie Livingston, Pat Barker
Western North American Naturalist
We use macroscopic charcoal analysis to reconstruct fire history in sagebrush (Artemisia tridentata var. wyomingensis and A. tridentata var. tridentata), in Newark Valley, Nevada. We analyzed charcoal at continuous 1-cm intervals (~7–127 years), and pollen at 2- to 10-cm intervals (~70–263 years) in a core spanning the last 5500 cal yr BP (calendar years before present). A charcoal peak in the historic period was associated with a >1400-ha fire dated to 1986 that burned in the watershed. We reconstructed the prehistoric fire history by inferring fires from similar charcoal peaks that were significantly greater than the background charcoal …
Transverse And Longitudinal Variation In Woody Riparian Vegetation Along A Montane River, Jonathan M. Friedman, Gregor T. Auble, Edmund D. Andrews, Gwen Kittel, Richard F. Madole, Eleanor R. Griffin, Tyler M. Allred
Transverse And Longitudinal Variation In Woody Riparian Vegetation Along A Montane River, Jonathan M. Friedman, Gregor T. Auble, Edmund D. Andrews, Gwen Kittel, Richard F. Madole, Eleanor R. Griffin, Tyler M. Allred
Western North American Naturalist
This study explores how the relationship between flow and riparian vegetation varies along a montane river. We mapped occurrence of woody riparian plant communities along 58 km of the San Miguel River in southwestern Colorado. We determined the recurrence interval of inundation for each plant community by combining step-backwater hydraulic modeling at 4 representative reaches with Log-Pearson analysis of 4 stream gaging stations. Finally, we mapped bottomland surficial geology and used a Geographic Information System to overlay the coverages of geology and vegetation. Plant communities were distinctly arrayed along the hydrologic gradient. The Salix exigua Nuttall (sandbar willow) community occurred …
Evaluating Plant Invasions From Both Habitat And Species Perspectives, Geneva W. Chong, Yuka Otsuki, Thomas J. Stohlgren, Debra Guenther, Paul Evangelista, Cynthia Villa, Alycia Waters
Evaluating Plant Invasions From Both Habitat And Species Perspectives, Geneva W. Chong, Yuka Otsuki, Thomas J. Stohlgren, Debra Guenther, Paul Evangelista, Cynthia Villa, Alycia Waters
Western North American Naturalist
We present an approach to quantitatively assess nonnative plant invasions at landscape scales from both habitat and species perspectives. Our case study included 34 nonnative species found in 142 plots (0.1 ha) in 14 vegetation types within the Grand Staircase–Escalante National Monument, Utah. A plot invasion index, based on nonnative species richness and cover, showed that only 16 of 142 plots were heavily invaded. A species invasive index, based on frequency, cover, and number of vegetation types invaded, showed that only 7 of 34 plant species were highly invasive. Multiple regressions using habitat characteristics (moisture index, elevation, soil P, native …
Transborder Associations Of Terrestrial Isopods (Crustacea, Isopoda, Oniscidea) Of Mexico And The United States, Joan P. Jass, Barbara R. Klausmeier
Transborder Associations Of Terrestrial Isopods (Crustacea, Isopoda, Oniscidea) Of Mexico And The United States, Joan P. Jass, Barbara R. Klausmeier
Western North American Naturalist
No abstract provided.
February 14, 2006, Council On Teacher Education
Daily Eastern News: February 13, 2006, Eastern Illinois University
Daily Eastern News: February 13, 2006, Eastern Illinois University
February
No abstract provided.
Landsat Cross-Calibration Based On Near Simultaneous Imaging Of Common Ground Targets, P.M. Teillet, B. L. Markham, Richard R. Irish
Landsat Cross-Calibration Based On Near Simultaneous Imaging Of Common Ground Targets, P.M. Teillet, B. L. Markham, Richard R. Irish
United States National Aeronautics and Space Administration: Publications
The paper presents the results of an extended analysis of image data sets acquired during the tandem-orbit configuration in 1999 for the purposes of radiometric cross-calibration of the Landsat-7 Enhanced Thematic Mapper Plus (ETM+) and Landsat-5 Thematic Mapper (TM) sensors. Earlier work focused on the tandem pair for the Railroad Valley Playa, Nevada (RVPN) site to tie down the Landsat-5 TM calibration based on the more accurate Landsat-7 ETM+ calibration. This paper describes new results based on as many as eight tandem image pairs. The additional tandem images are of primarily vegetated areas for which little or no ground reference …
Phylogenetic Analyses Of Mtdna Sequences Reveal Three Cryptic Lineages In The Widespread Neotropical Frog Leptodactylus Fuscus (Schneider, 1799) (Anura, Leptodactylidae), Arley Camargo, Rafael O. De Sá, W. Ronald Heyer
Phylogenetic Analyses Of Mtdna Sequences Reveal Three Cryptic Lineages In The Widespread Neotropical Frog Leptodactylus Fuscus (Schneider, 1799) (Anura, Leptodactylidae), Arley Camargo, Rafael O. De Sá, W. Ronald Heyer
Biology Faculty Publications
Leptodactylus fuscus is a neotropical frog ranging from Panamá to Argentina, to the east of the Andes mountains, and also inhabiting Margarita, Trinidad, and the Tobago islands. We performed phylogenetic analyses of 12S rRNA, 16S rRNA, tRNA-Leu, and ND1 mitochondrial (mt) DNA sequences from specimens collected across the geographic distribution of L. fuscus to examine two alternative hypotheses: (i) L. fuscus is a single, widely distributed species, or (ii) L. fuscus is a species complex. We tested statistically for geographic association and partitioning of genetic variation among mtDNA clades. The mtDNA data supported the hypothesis of several cryptic species within …
We Are...Marshall, February 10, 2006, Office Of Marshall University Communications
We Are...Marshall, February 10, 2006, Office Of Marshall University Communications
We Are ... Marshall: the Newsletter for Marshall University 1999-2023
No abstract provided.
Illinois State University Report, February 10, 2006, Illinois State University
Illinois State University Report, February 10, 2006, Illinois State University
Illinois State University Report (1966-2012)
Illinois State University bi-weekly employee newsletter.
Washington University Record, February 10, 2006
Washington University Record, February 10, 2006
Washington University Record
No abstract provided.
Mustang Daily, February 9, 2006
Mustang Daily, February 9, 2006
Cal Poly Student Newspaper
Student newspaper of California Polytechnic State University, San Luis Obispo, CA.
Illinois State University Report, February 9, 2006, Illinois State University
Illinois State University Report, February 9, 2006, Illinois State University
Illinois State University Report (1966-2012)
Illinois State University bi-weekly employee newsletter.
The Cord Weekly (February 8, 2006)
February 8, 2006 Cal Poly Report, Public Affairs Office
February 8, 2006 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
February 8, 2006 Cal Poly Report, Public Affairs Office
February 8, 2006 Cal Poly Report, Public Affairs Office
Cal Poly Report
No abstract provided.
Internet Sales Tax: Headaches Ahead For Small Business?, Walter Hellerstein
Internet Sales Tax: Headaches Ahead For Small Business?, Walter Hellerstein
Presentations and Speeches
Testimony before the Subcommittee on Regulatory Reform and Oversight "to investigate recent federal and state efforts to shift responsibility to collect state sales and use taxes to out-of-state Internet vendors."
Undergraduate Curriculum And Academic Policy Committee Minutes, February 8, 2006
Undergraduate Curriculum And Academic Policy Committee Minutes, February 8, 2006
Undergraduate Curriculum and Academic Policy Committee Minutes
Minutes from the Wright State University Faculty Senate Undergraduate Curriculum and Academic Policy Committee meeting held on February 8, 2006.
Faculty Affairs Minutes 02/08/2006, Faculty Affairs Committee
Faculty Affairs Minutes 02/08/2006, Faculty Affairs Committee
Faculty and P&A Affairs Committee
No abstract provided.
02/07/2006 - Eiu Story Ideas.Pdf, University Marketing And Communications
02/07/2006 - Eiu Story Ideas.Pdf, University Marketing And Communications
2006
No abstract provided.
Nebraska Earth Systems Education Network – Winter 2005/06
Nebraska Earth Systems Education Network – Winter 2005/06
Nebraska Earth Systems Education Network
Content:
UNL Expands Teacher Education in Earth Science by Monica Sanford
UNL Monitoring Program Records Persistent Groundwater Declines By Steve Ress
GEON Summer 2006 Workshops
AmericaView and NebraskaView Make Geospatial Information More Useful to All
NebraskaView and AmericaView Cooperators in Distributing Geospatial Information by Charles Flowerday
Tern and Plover Job Shadowing Program Gets First Two Students Going by Charles Flowerday
International Workshop Fosters Collaboration to Improve Teaching of Hydrogeology by Charles Flowerday
Cal Poly Faculty Member Donates $10,000 To Create Latin American Studies Program, Public Affairs Office
Cal Poly Faculty Member Donates $10,000 To Create Latin American Studies Program, Public Affairs Office
Press Releases
No abstract provided.
Faculty Senate Monthly Packet February 2006, Portland State University Faculty Senate
Faculty Senate Monthly Packet February 2006, Portland State University Faculty Senate
Faculty Senate Monthly Packets
The February 2006 Monthly packet includes the February agenda and appendices and the Faculty Senate minutes and attachments from the meeting held January 2006
02/06/2006 - Darwin Day.Pdf, University Marketing And Communications
02/06/2006 - Darwin Day.Pdf, University Marketing And Communications
2006
No abstract provided.
Grand Valley Forum, Volume 030, Number 26, February 6, 2006, Grand Valley State University
Grand Valley Forum, Volume 030, Number 26, February 6, 2006, Grand Valley State University
2005-2006, Volume 30
Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.
February 6th 2006, Csusb
Um Professor Receives Grant From Nsf, Researches Quake's Effect, University Of Montana--Missoula. Office Of University Relations
Um Professor Receives Grant From Nsf, Researches Quake's Effect, University Of Montana--Missoula. Office Of University Relations
University of Montana News Releases, 1928, 1956-present
No abstract provided.
The Wooster Voice (Wooster, Oh), 2006-02-03, Wooster Voice Editors
The Wooster Voice (Wooster, Oh), 2006-02-03, Wooster Voice Editors
The Voice: 2001-2011
This edition of the College of Wooster's student run newspaper was published on February 3 of 2006, and it is eight pages long. Pledge week has been frozen for 96 hours in order to investigate claims of hazing. President Hales will be retiring in June of 2007. Page five is dedicated to President Hales, giving a timeline of his life. Liz Miller writes about her experience of finally getting a cell phone and how it has impacted her. The Goliard will be publishing its seventeenth issue in April. A review of the Seattle's Coffee House in downtown Wooster written by …