Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (2318)
- Physical Sciences and Mathematics (1550)
- Social and Behavioral Sciences (1453)
- Law (1058)
- Education (1036)
-
- Medicine and Health Sciences (961)
- Arts and Humanities (813)
- Engineering (688)
- Environmental Sciences (599)
- Biology (557)
- Higher Education (389)
- Plant Sciences (330)
- Animal Sciences (314)
- Communication (289)
- Ecology and Evolutionary Biology (281)
- Chemistry (277)
- History (270)
- Library and Information Science (229)
- Psychology (227)
- Medical Sciences (199)
- Sociology (196)
- Mass Communication (185)
- Biochemistry, Biophysics, and Structural Biology (181)
- Computer Sciences (175)
- American Studies (163)
- Marine Biology (161)
- Medical Specialties (158)
- Environmental Law (148)
- Earth Sciences (144)
- Business (141)
- Institution
-
- University of Nebraska - Lincoln (1363)
- University of South Florida (468)
- Louisiana State University (386)
- University of Montana (286)
- Utah State University (258)
-
- Brigham Young University (234)
- University of Central Florida (222)
- University of New Hampshire (220)
- Eastern Illinois University (212)
- Washington University School of Medicine (197)
- Nova Southeastern University (177)
- Clemson University (172)
- California Polytechnic State University, San Luis Obispo (171)
- University of Alabama at Birmingham (170)
- Wright State University (168)
- University of North Dakota (142)
- Old Dominion University (137)
- University of South Carolina (136)
- Stony Brook University (134)
- West Virginia University (134)
- Georgia Southern University (131)
- Missouri University of Science and Technology (125)
- University of New Mexico (125)
- TÜBİTAK (123)
- Purdue University (122)
- University of Northern Iowa (122)
- University of Kentucky (116)
- University of Nevada, Las Vegas (110)
- Bowling Green State University (108)
- University of Mississippi (102)
- Keyword
-
- Newspaper (157)
- Humans (94)
- Faculty (90)
- EIU (87)
- Animals (85)
-
- Eastern Illinois University (82)
- Newsletter (82)
- Daily Eastern News (81)
- 2007 (80)
- Bowling Green State University (80)
- Biology (75)
- Invasive species (70)
- Genetics (66)
- Press release; media release; press statement; news media information (63)
- B.G. News (59)
- BG News (59)
- Alumni (57)
- Education (57)
- Student newspaper (54)
- Student newspapers (54)
- Ecology (53)
- Spartan Daily (52)
- Future (50)
- 2006-2007(Vol. 39) (49)
- Central Florida Future (49)
- History (49)
- Minutes (49)
- Agriculture (48)
- Metabolism (48)
- Western Kentucky University (47)
- Publication
-
- Theses and Dissertations (365)
- Faculty Publications (316)
- Electronic Theses and Dissertations (221)
- USF Tampa Graduate Theses and Dissertations (148)
- Open Access Publications (133)
-
- All ETDs from UAB (120)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (108)
- LSU Doctoral Dissertations (107)
- Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions) (104)
- LSU Master's Theses (99)
- Graduate Student Theses, Dissertations, & Professional Papers (90)
- Faculty Scholarship (89)
- Articles (83)
- Saudi Medical Journal (83)
- United States Department of Agriculture Wildlife Services: Staff Publications (82)
- Theses (81)
- United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications (78)
- Research Publications (2006 to 2010) (77)
- All Theses (74)
- Nebraska Tractor Tests (74)
- Human–Wildlife Interactions (72)
- Masters Theses (70)
- Dissertations (65)
- University of Montana News Releases, 1928, 1956-present (63)
- Master's Theses and Capstones (62)
- UNLV Retrospective Theses & Dissertations (62)
- Doctoral Dissertations (61)
- BG News (Student Newspaper) (59)
- Biological Sciences Faculty Publications (58)
- Dartmouth Scholarship (58)
- Publication Type
- File Type
Articles 6931 - 6960 of 14134
Full-Text Articles in Entire DC Network
The Daily Egyptian, March 27, 2007, Daily Egyptian Staff
The Daily Egyptian, March 27, 2007, Daily Egyptian Staff
March 2007
No abstract provided.
Faculty Senate Meeting Minutes, 03/27/2007, P 1197-1204, Unm Faculty Senate
Faculty Senate Meeting Minutes, 03/27/2007, P 1197-1204, Unm Faculty Senate
Faculty Senate Meeting Minutes, 1920 - 2013
No abstract provided.
The Bates Student - Volume 136 Number 18 - March 27, 2007, Bates College
The Bates Student - Volume 136 Number 18 - March 27, 2007, Bates College
The Bates Student
No abstract provided.
School Of Medicine Faculty Senate Minutes - March 2007., Scott. Johnson, School Of Medicine Faculty Senate.
School Of Medicine Faculty Senate Minutes - March 2007., Scott. Johnson, School Of Medicine Faculty Senate.
Meeting Minutes
No abstract provided.
Size Dependence Of Static And Dynamic Magnetic Properties In Nanoscale Square Permalloy Antidot Arrays, Minghui Yu, Leszek M. Malkinski, Leonard Spinu, Weilie Zhou, Scott L. Whittenburg
Size Dependence Of Static And Dynamic Magnetic Properties In Nanoscale Square Permalloy Antidot Arrays, Minghui Yu, Leszek M. Malkinski, Leonard Spinu, Weilie Zhou, Scott L. Whittenburg
Chemistry and Biochemistry Faculty Publications
Permalloy antidot arrays with different square hole sizes ( , , and ) have been fabricated by means of electron-beam lithography and lift-off techniques. The smaller square hole size results in enhanced remanence and reduced coercivity in the antidot array. Multiple resonance modes were clearly observed for the magnetic field applied normal to the array plane, and double uniform resonance modes occurred when the field deviated more than 30° from the normal to the plane. Two distinct dipolar field patterns with different orientations and magnitudes split the uniform resonance into double resonance modes. The double resonance modes show uniaxial in-plane …
Faculty Senate Meeting Minutes, 03/27/2007, P 1197-1204, Unm Faculty Senate
Faculty Senate Meeting Minutes, 03/27/2007, P 1197-1204, Unm Faculty Senate
Faculty Senate Meeting Minutes, 1920 - 2013
No abstract provided.
Minutes_07_03_27, Unm Faculty Senate
Minutes_07_03_27, Unm Faculty Senate
Faculty Senate Meeting Minutes, 1920 - 2013
Minutes from the March 27th, 2007 Faculty Senate meeting.
Rotunda - Vol 85, No 19 - March 27, 2007, Longwood University
Rotunda - Vol 85, No 19 - March 27, 2007, Longwood University
Rotunda
No abstract provided.
Florida Sentinel Bulletin, March 27, 2007, Gwen Hayes
Florida Sentinel Bulletin, March 27, 2007, Gwen Hayes
Florida Sentinel Bulletin Collection
The March 27, 2007, issue of the Florida Sentinel Bulletin.
Some Of The Problems Associated With Lcn (Low Copy Number) Testing, Dan E. Krane
Some Of The Problems Associated With Lcn (Low Copy Number) Testing, Dan E. Krane
Biological Sciences Faculty Publications
No abstract provided.
Spotted Cotton Oligonucleotide Microarrays For Gene Expression Analysis, Joshua Udall, Lex E. Flagel, Foo Chung, Andrew W. Woodward, Ran Hovav, Ryan A. Rapp, Jordan M. Swanson, Jinsuk J. Lee, Alan R. Gingle, Dan Nettleton, Christopher D. Town, Z. Jeffrey Chen, Jonathan F. Wendel
Spotted Cotton Oligonucleotide Microarrays For Gene Expression Analysis, Joshua Udall, Lex E. Flagel, Foo Chung, Andrew W. Woodward, Ran Hovav, Ryan A. Rapp, Jordan M. Swanson, Jinsuk J. Lee, Alan R. Gingle, Dan Nettleton, Christopher D. Town, Z. Jeffrey Chen, Jonathan F. Wendel
Faculty Publications
Microarrays offer a powerful tool for diverse applications plant biology and crop improvement. Recently, two comprehensive assemblies of cotton ESTs were constructed based on three Gossypium species. Using these assemblies as templates, we describe the design and creation and of a publicly available oligonucleotide array for cotton, useful for all four of the cultivated species. Results: Synthetic oligonucleotide probes were generated from exemplar sequences of a global assembly of 211,397 cotton ESTs derived from <50 different cDNA libraries representing many different tissue types and tissue treatments. A total of 22,787 oligonucleotide probes are included on the arrays, optimized to target the diversity of the transcriptome and previously studied cotton genes, transcription factors, and genes with homology to Arabidopsis. A small portion of the oligonucleotides target unidentified protein coding sequences, thereby providing an element of gene discovery. Because many oligonucleotides were based on ESTs from fiber-specific cDNA libraries, the microarray has direct application for analysis of the fiber transcriptome. To illustrate the utility of the microarray, we hybridized labeled bud and leaf cDNAs from G. hirsutum and demonstrate technical consistency of results. Conclusion: The cotton oligonucleotide microarray provides a reproducible platform for transcription profiling in cotton, and is made publicly available through http://cottonevolution.info.
Spatially Scaled Response Of A Lazuli Bunting Population To Fire, Andreas Leidolf, Tim Nuttle, Michael L. Wolfe
Spatially Scaled Response Of A Lazuli Bunting Population To Fire, Andreas Leidolf, Tim Nuttle, Michael L. Wolfe
Western North American Naturalist
We examined the response of Lazuli Bunting (Passerina amoena) to fire in Gambel oak (Quercus gambelii) woodland at Camp Williams, Utah, during 1993–1998. Overall, Lazuli Bunting abundance on the study area increased significantly during the 2 years after a stand-replacing wildfire, which covered 800 ha of Gambel oak woodland. This increase suggested that Lazuli Buntings respond positively to fire. However, a comparison of pre- and post-fire abundance of Lazuli Bunting for 2 groups of monitoring plots with different fire histories showed that abundance was significantly greater during the post-fire period for both burned and unburned plots. …
Vegetation Responses To 35 And 55 Years Of Native Ungulate Grazing In Shrubsteppe Communities, Echo A. Rexroad, Karen H. Beard, Andrew Kulmatiski
Vegetation Responses To 35 And 55 Years Of Native Ungulate Grazing In Shrubsteppe Communities, Echo A. Rexroad, Karen H. Beard, Andrew Kulmatiski
Western North American Naturalist
Ungulate populations are managed in shrubsteppe ecosystems around the world, but relatively few long-term datasets are available that test the impacts of these grazers on shrubsteppe structure and function. This study evaluated 8 exclosures in 4 shrubsteppe communities to determine the effects of deer and elk over 35 or 55 years on (1) plant biomass and species composition, (2) soil nitrogen (N) mineralization and net nitrification rates, Olsen extractable phosphorus (P), and C:N ratios, and (3) arthropod diversity and abundance. The site with deer, the highest ungulate densities, and coldest climate (Sinlahekin Wildlife Area, WA) had greater vegetative biomass and …
Winter Survival Of Northern Pintails In The Middle Rio Grande Valley, New Mexico, Colin K. Lee, John P. Taylor, David A. Haukos, Mark C. Andersen
Winter Survival Of Northern Pintails In The Middle Rio Grande Valley, New Mexico, Colin K. Lee, John P. Taylor, David A. Haukos, Mark C. Andersen
Western North American Naturalist
In response to continued low population numbers of Northern Pintail (Anas acuta) in North America and to increase knowledge of the geographic variation in pintail survival rates, we estimated 126-day (27 October–2 March) survival for male and female pintails wintering in the Middle Rio Grande Valley, New Mexico, during 2001–2002 (SY1) and 2002–2003 (SY2). Sixty-nine adult male and female pintails were marked with radio-transmitters and tracked throughout the study period. Weekly relocation data in relation to study year, sex, time (week), body condition at capture, and hunting seasons were modeled using the known-fate procedure in Program MARK. Year, …
Aspen And Conifer Heterogeneity Effects On Bird Diversity In The Northern Yellowstone Ecosystem, Jeff P. Hollenbeck, William J. Ripple
Aspen And Conifer Heterogeneity Effects On Bird Diversity In The Northern Yellowstone Ecosystem, Jeff P. Hollenbeck, William J. Ripple
Western North American Naturalist
We addressed the following question: Do conifers within aspen stands (conifer invasion) increase bird species diversity in western landscapes? We tested the hypotheses that bird species diversity, measured as species richness or with the Shannon-Weiner diversity index, responds to aspen-conifer ratios (from 0% to 100% conifer) in a quadratic manner with a maximum occurring at an intermediate ratio of aspen and conifer. Extra sum-of-squares F tests comparing quadratic with linear models suggested that migratory bird diversity was inversely linearly related to the extent of conifer invasion. These linear responses were moderate (species richness: R2 ≥ 0.34, P < 0.01; Shannon-Weiner diversity index: R2 ≥ …
Genetic Analysis Of A Recently Discovered Population Of The Least Chub (Iotichthys Phlegethontis), Karen E. Mock, Lee S. Bjerregaard
Genetic Analysis Of A Recently Discovered Population Of The Least Chub (Iotichthys Phlegethontis), Karen E. Mock, Lee S. Bjerregaard
Western North American Naturalist
No abstract provided.
Anthropogenic Threat To The Desert Tortoise (Gopherus Agassizii): Litter In The Mojave Desert, Andrew D. Walde, Meagan L. Harless, David K. Delaney, Larry L. Pater
Anthropogenic Threat To The Desert Tortoise (Gopherus Agassizii): Litter In The Mojave Desert, Andrew D. Walde, Meagan L. Harless, David K. Delaney, Larry L. Pater
Western North American Naturalist
No abstract provided.
Faculty Senate Summarized Minutes, 3/27/2007, Unm Faculty Senate
Faculty Senate Summarized Minutes, 3/27/2007, Unm Faculty Senate
Faculty Senate Meeting Minutes, 1920 - 2013
No abstract provided.
Enhanced Raman Scattering By Self-Assembled Silica Spherical Microparticles, Kaijun Yi, H. Wang, Yongfeng Lu, Z. Y. Yang
Enhanced Raman Scattering By Self-Assembled Silica Spherical Microparticles, Kaijun Yi, H. Wang, Yongfeng Lu, Z. Y. Yang
Department of Electrical and Computer Engineering: Faculty Publications
A technique was developed to achieve enhanced Raman scattering of the silicon photon modes using closely packed micro- and submicron silica spherical particles. Investigation on the particle-size dependence of Raman enhancement revealed that the strongest enhancement occurs when the particle diameter is equal to the spot size of the incident laser beam. Calculations using the OPTIWAVETM software based on the finite difference time domain algorithm under the perfectly matched layer boundary conditions were carried out. The results showed that photonic nanojets are formed in the vicinity outside the particles along the propagation direction of incident light. It was found …
Effect Of Backwashing On Perchlorate Removal In Fixed Bed Biofilm Reactors, Young Chul Choi, Xu Li, Lutgarde Raskin, Eberhard Morgenroth
Effect Of Backwashing On Perchlorate Removal In Fixed Bed Biofilm Reactors, Young Chul Choi, Xu Li, Lutgarde Raskin, Eberhard Morgenroth
Department of Civil and Environmental Engineering: Faculty Publications
The influence of backwashing on biological perchlorate reduction was evaluated in two laboratory scale fixed bed biofilm reactors using 1- or 3-mm glass beads as support media. Influent perchlorate concentrations were 50 μg/L and acetate was added as the electron donor at a concentration of 2 mg C/L. Perchlorate removal was evaluated at various influent dissolved oxygen (DO) concentrations. Complete perchlorate removal was achieved with an influent DO concentration of 1 mg/L resulting in bulk phase DO concentrations below the detection limit of 0.01 mg/L. The influence of increasing influent DO concentrations for 12 h periods was evaluated before and …
The Bg News March 27, 2007, Bowling Green State University
The Bg News March 27, 2007, Bowling Green State University
BG News (Student Newspaper)
The BGSU campus student newspaper. March 27, 2007. Volume 97-Issue 122.
Queer Identity? Discussing Identity And Appearance In An On-Line “Genderqueer” Community, Sharla N. Alegria
Queer Identity? Discussing Identity And Appearance In An On-Line “Genderqueer” Community, Sharla N. Alegria
USF Tampa Graduate Theses and Dissertations
The relatively new field of Queer Theory creates ways of thinking about people living without binary gender, but does not provide for a research model with which to give context to the material struggles of such people. Through the use of Internet discussion groups, the current research project attempts to examine the challenges that people who identify with the concept "genderqueer" describe facing as they fashion selves in social interactions; a process which inevitably requires consumer goods that typically only allow for heteronormative binary gender. Findings suggest that there are similarities in how respondents came to identify with "genderqueer," but …
Modeling Distributions Of Rare Plants In The Great Basin, Western North America, M. Aitken, D. W. Roberts, L. M. Shultz
Modeling Distributions Of Rare Plants In The Great Basin, Western North America, M. Aitken, D. W. Roberts, L. M. Shultz
Western North American Naturalist
In this 2-phase study, we developed field-validated site and landscape-level predictive models for identifying potential rare and endemic plant habitat in the Great Basin of western North America. Four species were chosen to include a range of environmental variability and plant communities. Herbarium records of known occurrences were used to identify initial sample sites. The geographic coordinates, environmental attributes, and vegetation data collected at each site were used to develop 2 predictive models for each species: a field key and a probability-of-occurrence or predictor map. The field key was developed using only field data collected at the sites on environmental …
The Effect Of Elevation On The Distribution Of Sibling Species In The Simulium Arcticum Complex (Diptera: Simuliidae), Gerald F. Shields, Gregory M. Clausen, Christina S. Marchion, Tracy L. Michel, Kathryn C. Styren, Callie N. Riggin, Tonya D. Santoro, Lindee M. Strizich
The Effect Of Elevation On The Distribution Of Sibling Species In The Simulium Arcticum Complex (Diptera: Simuliidae), Gerald F. Shields, Gregory M. Clausen, Christina S. Marchion, Tracy L. Michel, Kathryn C. Styren, Callie N. Riggin, Tonya D. Santoro, Lindee M. Strizich
Western North American Naturalist
At least 5 sibling species and an additional 11 cytotypes of the Simulium arcticum complex occur in Montana. Consequently, this speciose complex might allow study of environmental correlates with genetic differentiation. We used conventional methods of collection and cytogenetic analysis to study 1128 male larvae of the Simulium arcticum complex at 15 sites within 5 drainages in western Montana to test the hypothesis that distribution of siblings is associated with elevation. We sampled at the mouth, at the headwaters, and at an intermediate site to span the range of elevations within each drainage. We restricted our analyses to the most …
Food And Habitat Relationships Of Claassenia Sabulosa (Plecoptera: Perlidae) In The Upper Colorado River, Colorado, Richard A. Thorp, Jeremy B. Monroe, Emily C. Thorp, Todd Wellnitz, N. Leroy Poff
Food And Habitat Relationships Of Claassenia Sabulosa (Plecoptera: Perlidae) In The Upper Colorado River, Colorado, Richard A. Thorp, Jeremy B. Monroe, Emily C. Thorp, Todd Wellnitz, N. Leroy Poff
Western North American Naturalist
Streambed surveys were conducted along the upper Colorado River, Colorado, to describe the distributions of Claassenia sabulosa larvae in relation to current speed and to determine their diets. We also addressed diel feeding periodicity by sampling during both day and night. Claassenia sabulosa was more abundant in riffle habitats than in runs. A positive relationship existed between C. sabulosa abundance and stream current, with larval size increasing with current speed. Chironomidae, Baetidae, and Simulidae collectively accounted for 93% of the prey found in stonefly guts; however, these categories were not consumed equally by all C. sabulosa. Smaller C. sabulosa …
A Comparison Of Mosquito Consumption And Prey Selection Between Least Chub (Iotichthys Phlegethontis) And Western Mosquitofish (Gambusia Affinis), Eric J. Billman, Eric J. Wagner, Ronney E. Arndt
A Comparison Of Mosquito Consumption And Prey Selection Between Least Chub (Iotichthys Phlegethontis) And Western Mosquitofish (Gambusia Affinis), Eric J. Billman, Eric J. Wagner, Ronney E. Arndt
Western North American Naturalist
We compared mosquito consumption and prey selection between least chub (Iotichthys phlegethontis) and western mosquitofish (Gambusia affinis) to determine the potential of least chub as an indigenous replacement for mosquito control in Utah. Mosquito consumption was compared between the 2 species in 2 experiments. The first tested consumption at 3 ratios of pupae and larvae (Culex sp.; 1:3, 3:4, and 1:1), and the second tested consumption at varying densities of larvae (967 larvae · m−3, 1354 larvae · m−3, and 2258 larvae · m−3 [30, 42, and 70 larvae per …
Characteristics Of Columbia Spotted Frog (Rana Luteiventris) Oviposition Sites In Northeastern Oregon, Usa, Christopher A. Pearl, Michael J. Adams, Wendy H. Wente
Characteristics Of Columbia Spotted Frog (Rana Luteiventris) Oviposition Sites In Northeastern Oregon, Usa, Christopher A. Pearl, Michael J. Adams, Wendy H. Wente
Western North American Naturalist
Several western ranid frogs possess a unique strategy of breeding communally over a short temporal window and reusing oviposition sites between years. However, little is published on the characteristics of oviposition sites selected by these explosive breeders. The Columbia spotted frog (Rana luteiventris) is native to northwestern North America and is of conservation concern in the southern portions of its range. As part of a study examining relationships between livestock grazing and R. luteiventris habitat, we assessed characteristics of the species' oviposition sites in 25 fishless ponds in northeastern Oregon. Oviposition sites were generally in shallow water (<25 cm) close to shore and tended to be in the northeastern portion of ponds. Oviposition sites were found more frequently over heavily vegetated substrates and in areas of less substrate slope and shade than random points in littoral zones. We did not quantify temperature differences within ponds, but the patterns we documented are consistent with preferential use of warmer microhabitats for oviposition.
Dispersal And Extraterritorial Movements Of Swift Foxes (Vulpes Velox) In Northwestern Texas, Kerry L. Nicholson, Warren B. Ballard, Brady K. Mcgee, Heather A. Whitlaw
Dispersal And Extraterritorial Movements Of Swift Foxes (Vulpes Velox) In Northwestern Texas, Kerry L. Nicholson, Warren B. Ballard, Brady K. Mcgee, Heather A. Whitlaw
Western North American Naturalist
Dispersal plays an important role in the population dynamics of many carnivores, yet little information exists about the dispersal and movement patterns of swift foxes (Vulpes velox). We radio-collared and monitored 68 swift foxes for dispersal at 2 study sites in northwestern Texas from January 2002 to April 2004. Dispersal distance for juveniles (13.1 ± 0.3 km, s), adults (10 ± 4.7 km) and transients (25.4 ± 9.1 km) did not differ by age class (F = 1.49, df = 2, P = 0.24) or sex (F = 0.23, df = 1, P = 0.63) …
Potential Contribution Of Respiration By Anabrus Simplex (Mormon Crickets) To Net Co2 Exchange In Three Great Basin Ecosystems, A. Joshua Leffler, Michael S. Peek, Larry Hipps, Sasha Ivans, Ronald J. Ryel, Martyn M. Caldwell
Potential Contribution Of Respiration By Anabrus Simplex (Mormon Crickets) To Net Co2 Exchange In Three Great Basin Ecosystems, A. Joshua Leffler, Michael S. Peek, Larry Hipps, Sasha Ivans, Ronald J. Ryel, Martyn M. Caldwell
Western North American Naturalist
Disturbance events can significantly influence net CO2 exchange (NCE) in ecosystems. High densities of Anabrus simplex (Mormon crickets) periodically afflict large areas of the western USA; their sheer numbers could make them a significant source of CO2. We modeled cricket respiration at the ecosystem level using air and body temperatures and insect gas exchange measurements. Cricket CO2 efflux values were compared to ecosystem CO2 flux from eddy covariance measurements in 3 Great Basin ecosystems: a juniper woodland, a sagebrush shrubland, and a crested wheatgrass pasture. Mean respiration from Mormon crickets was 0.96 g CO2 …
Forest-Floor Treatments In Arizona Ponderosa Pine Restoration Ecosystems: No Short-Term Effects On Plant Communities, Scott R. Abella, W. Wallace Covington
Forest-Floor Treatments In Arizona Ponderosa Pine Restoration Ecosystems: No Short-Term Effects On Plant Communities, Scott R. Abella, W. Wallace Covington
Western North American Naturalist
Leaf litter accumulation during fire exclusion and increases in tree density in postsettlement southwestern Pinus ponderosa forests may limit the establishment of understory vegetation. We performed an experiment in P. ponderosa forests of northern Arizona to ascertain plant community responses to forest-floor scarification and Oi removal on thirty-six 100-m2 plots overlaid on an existing ecological restoration experiment that involved tree thinning and prescribed burning. Constrasting with findings from many other forest types, forest-floor treatments had no effect on community diversity or composition during the 2-year experiment. Sørensen similarities were as high as 97% between posttreatment years within treatments; and …