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- JFSP Research Project Reports (19)
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Articles 31 - 48 of 48
Full-Text Articles in Life Sciences
Predicting Dry Lightning Risk Nationwide, Joy Drohan
Predicting Dry Lightning Risk Nationwide, Joy Drohan
Joint Fire Science Program Briefs (2007-2012)
Meteorologists developed two formulas to predict the probability of dry lightning throughout the continental United States and Alaska and parts of Canada. Predictions are made daily and are accessible through the web at http://www.airfire.org/tools/daily-fire-weather/dry-lightning-probability. The emphasis is on the western United States, where dry lightning is a more common occurrence. Predictions are based on identifying days on which lightning is expected and separately determining whether there is likely to be at least 1/10th inch of accompanying rain. The formulas are run with the latest North American or Alaskan weather forecasting model and forecast dry lightning probabilities for about three days …
Effect Of Nitrogen Fertilization On Net Nitrogen Mineralization In Grassland Soil Of Northern China: Implications For Grassland Management, X. Zhang, Q. Wang, Frank S. Gilliam, W. Bai, X. Han, L. Li
Effect Of Nitrogen Fertilization On Net Nitrogen Mineralization In Grassland Soil Of Northern China: Implications For Grassland Management, X. Zhang, Q. Wang, Frank S. Gilliam, W. Bai, X. Han, L. Li
Biological Sciences Faculty Research
Nitrogen (N) applications can have a significant effect on soil N availability. The effect of 3 years of N fertilization on soil net N mineralization during the growing season (May–September) was studied in 2005 and 2006 in grassland of northern China. The experimental design was a randomized complete block with four replications of five rates of N addition as urea (0, 2, 4, 8 and 16 g N m−2 year−1). Results indicated that net N mineralization rate varied seasonally and between years, ranging from −0.04 to 0.52 μg g−1 d−1 in 2005 and from −0.09 …
Timber Talk, Vol. 50, No. 2, June 1, 2012
Timber Talk, Vol. 50, No. 2, June 1, 2012
Timber Talk: Nebraska Forest Industry Newsletter
Lumber Market News; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried.; Air Drying Lumber; Chiggers-More Than You Ever Wanted To Know!; Nebraska Forestry Spotlight; The Trading Post; Timber Sales.
Timber Talk, Vol. 50, No. 3, September 1, 2012
Timber Talk, Vol. 50, No. 3, September 1, 2012
Timber Talk: Nebraska Forest Industry Newsletter
Lumber Market News; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried; Timber Stumpage Prices; Wood is Good; Solar-Heated Lumber Dryers: Design Basics; Nebraska Forestry Spotlight; Study Reveals Component Market Trends; The Trading Post
Timber Talk, Vol. 50, No. 4, November 1, 2012
Timber Talk, Vol. 50, No. 4, November 1, 2012
Timber Talk: Nebraska Forest Industry Newsletter
Lumber Market News ; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried.; Wood Products: Good for the Environment; Opening Faces; Sawing For Grade Increases Value; Nebraska Forestry Spotlight; The 2 X 4 Revolutionized Construction; The Trading Post; Timber Sales
Timber Talk, Vol. 50, No. 1, February 1, 2012
Timber Talk, Vol. 50, No. 1, February 1, 2012
Timber Talk: Nebraska Forest Industry Newsletter
Lumber Market News; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried; Hardwood Lumber Market History—Green; Tribute to a Forester; Cracking the Walnut Case; Woody Biomass Facts: A Look at the Myths Regarding a Sustainable Energy Source; Nebraska Forestry Industry Spotlight.....6 NFS Welcomes New M&U Forester; The Trading Post; Timber Sales; How Did Scragg Mills Get Named?
Terrestrial Biosphere Models Need Better Representation Of Vegetation Phenology: Results From The North American Carbon Program Site Synthesis, Andrew D. Richardson, Ryan S. Anderson, M. Altaf Arain, Alan G. Barr, G. Bohrer, Guangsheng Chen, Jing M. Chen, Philippe Ciais, Kenneth J. Davis, Ankur R. Desai, Michael C. Dietze, Danilo Dragoni, Steven R. Garrity, Christopher M. Gough, Robert Grant, David Y. Hollinger, Hank A. Margolis, Harry Mccaughey, Mirco Migliavacca, Russell K. Monson, J. William Munger, Benjamin Poulter, Brett M. Raczka, Daniel M. Ricciuto, Alok K. Sahoo, Kevin Schaefer, Hanqin Tian, Rodrigo Vargas, Hans Verbeeck, Jingfeng Xiao, Yongkang Xue
Terrestrial Biosphere Models Need Better Representation Of Vegetation Phenology: Results From The North American Carbon Program Site Synthesis, Andrew D. Richardson, Ryan S. Anderson, M. Altaf Arain, Alan G. Barr, G. Bohrer, Guangsheng Chen, Jing M. Chen, Philippe Ciais, Kenneth J. Davis, Ankur R. Desai, Michael C. Dietze, Danilo Dragoni, Steven R. Garrity, Christopher M. Gough, Robert Grant, David Y. Hollinger, Hank A. Margolis, Harry Mccaughey, Mirco Migliavacca, Russell K. Monson, J. William Munger, Benjamin Poulter, Brett M. Raczka, Daniel M. Ricciuto, Alok K. Sahoo, Kevin Schaefer, Hanqin Tian, Rodrigo Vargas, Hans Verbeeck, Jingfeng Xiao, Yongkang Xue
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
Phenology, by controlling the seasonal activity of vegetation on the land surface, plays a fundamental role in regulating photosynthesis and other ecosystem processes, as well as competitive interactions and feedbacks to the climate system. We conducted an analysis to evaluate the representation of phenology, and the associated seasonality of ecosystem- scale CO2 exchange, in 14 models participating in the North American Carbon Program Site Synthesis. Model predictions were evaluated using long-term measurements (emphasizing the period 2000–2006) from 10 forested sites within the AmeriFlux and Fluxnet-Canada networks. In deciduous forests, almost all models consistently predicted that the growing season started …
The Relationship Between Male Moth Density And Female Mating Success In Invading Populations Of Lymantria Dispar, Patrick C. Tobin, Ksenia S. Onufrieva, Kevin W. Thorpe
The Relationship Between Male Moth Density And Female Mating Success In Invading Populations Of Lymantria Dispar, Patrick C. Tobin, Ksenia S. Onufrieva, Kevin W. Thorpe
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
The successful establishment of non-native species in new areas can be affected by many factors including the initial size of the founder population. Populations comprised of fewer individuals tend to be subject to stochastic forces and Allee effects (positive-density dependence), which can challenge the ability of small founder populations to establish in a new area. Although the conceptual relationship between initial colony size and establishment success has been previously documented, it is not trivial to estimate precisely the colony size needed to ensure colony persistence. Over the last 40 years, there have been many studies on the probability of mating …
Climate Change On The Shoshone National Forest, Wyoming: A Synthesis Of Past Climate, Climate Projections, And Ecosystem Implications, Janine Rice, Andrew Tredennick, Linda A. Joyce
Climate Change On The Shoshone National Forest, Wyoming: A Synthesis Of Past Climate, Climate Projections, And Ecosystem Implications, Janine Rice, Andrew Tredennick, Linda A. Joyce
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
The Shoshone National Forest (Shoshone) covers 2.4 million acres of mountainous topography in northwest Wyoming and is a vital ecosystem that provides clean water, wildlife habitat, timber, grazing, recreational opportunities, and aesthetic value. The Shoshone has experienced and adapted to changes in climate for many millennia, and is currently experiencing a warming trend that is expected to accelerate in the next century. Climate change directly and indirectly affects the Shoshone’s high-elevation, mountainous terrain that supports unique and sometimes rare ecological components. Several vulnerable and very responsive resources and processes on the Shoshone could interact to produce unforeseeable or undesirable ecosystem …
A Detrimental Soil Disturbance Prediction Model For Ground-Based Timber Harvesting, Derrick A. Reeves, Matthew C. Reeves, Ann M. Abbott, Deborah S. Page-Dumroese, Mark D. Coleman
A Detrimental Soil Disturbance Prediction Model For Ground-Based Timber Harvesting, Derrick A. Reeves, Matthew C. Reeves, Ann M. Abbott, Deborah S. Page-Dumroese, Mark D. Coleman
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
Soil properties and forest productivity can be affected during ground-based harvest operations and site preparation. The degree of impact varies widely depending on topographic features and soil properties. Forest managers who understand site-specific limits to ground-based harvesting can alter harvest method or season to limit soil disturbance. To determine the potential areal extent of detrimental (potentially plant growth limiting) soil disturbance based on site characteristics and season of harvest, we developed a predictive model based on soil monitoring data collected from 167 groundbased harvest units. Data collected included dominant site parameters (e.g., slope, aspect, soil texture, and landtype), harvest season, …
A Synoptic Review Of U.S. Rangelands A Technical Document Supporting The Forest Service 2010 Rpa Assessment, Matthew Clark Reeves, John E. Mitchell
A Synoptic Review Of U.S. Rangelands A Technical Document Supporting The Forest Service 2010 Rpa Assessment, Matthew Clark Reeves, John E. Mitchell
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
The Renewable Resources Planning Act of 1974 requires the USDA Forest Service to conduct assessments of resource conditions. This report fulfills that need and focuses on quantifying extent, productivity, and health of U.S. rangelands. Since 1982, the area of U.S. rangelands has decreased at an average rate of 350,000 acres per year owed mostly to conversion to agricultural and residential land uses. Nationally, rangeland productivity has been steady over the last decade, but the Rocky Mountain Assessment Region appears to have moderately increased productivity since 2000. The forage situation is positive and, from a national perspective, U.S. rangelands can probably …
Wildlife-Associated Recreation Trends In The United States A Technical Document Supporting The Forest Service 2010 Rpa Assessment, Miranda H. Mockrin, Richard A. Aiken, Curtis H. Flather
Wildlife-Associated Recreation Trends In The United States A Technical Document Supporting The Forest Service 2010 Rpa Assessment, Miranda H. Mockrin, Richard A. Aiken, Curtis H. Flather
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
The Forest and Rangeland Renewable Resources Planning Act (RPA) of 1974 requires periodic assessments of the condition and trends of the Nation’s renewable natural resources. In this report, we document recent and historical trends in hunting and wildlife watching to fulfill RPA requirements. Using data from the U.S. Department of the Interior, Fish and Wildlife Service’s National Survey of Fishing, Hunting, and Wildlife-Associated Recreation we present historical trends back to 1955 as well as recent changes from the past 10 to 20 years to evaluate changes in recreation since the 2000 RPA Assessment. We report on several attributes of wildlife …
Fish And Other Aquatic Resource Trends In The United States A Technical Document Supporting The Forest Service 2010 Rpa Assessment, Andrew J. Loftus, Curtis H. Flather
Fish And Other Aquatic Resource Trends In The United States A Technical Document Supporting The Forest Service 2010 Rpa Assessment, Andrew J. Loftus, Curtis H. Flather
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
The Forest and Rangeland Renewable Resources Planning Act (RPA) of 1974 requires periodic assessments of the status and trends in the Nation’s renewable natural resources including fish and other aquatic species and their habitats. Data from a number of sources are used to document trends in habitat quality, populations, resource use, and patterns of imperilment among aquatic fauna. Freshwater habitat quality varied widely across the United States. Nationwide, more than half of monitored lakes were ranked in good condition, but the percentage ranged from a high of 91 percent in the upper Midwest to a low of 1 percent in …
Nebraska’S Forest Resources, 2012, Dacia M. Meneguzzo, Chuck Barnett
Nebraska’S Forest Resources, 2012, Dacia M. Meneguzzo, Chuck Barnett
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
This publication provides an overview of forest resource attributes for Nebraska based on an annual inventory conducted by the Forest Inventory and Analysis (FIA) program at the Northern Research Station of the U.S. Forest Service. These estimates, along with web-posted core tables, will be updated annually. For more information please refer to page 5 of this report.
Notes On The Diet Of The Malay Civet (Viverra Tangalunga) And Other Civets In Logged And Unlogged Lowland Dipterocarp Rain Forests In Sabah, Borneo, Christina P. Colon, John B. Sugau
Notes On The Diet Of The Malay Civet (Viverra Tangalunga) And Other Civets In Logged And Unlogged Lowland Dipterocarp Rain Forests In Sabah, Borneo, Christina P. Colon, John B. Sugau
Publications and Research
Civet diets were examined in a logged and unlogged Bornean rain forest. Malay civets (Viverra tangalunga) consumed invertebrates, fruit, rodents, insectivores, birds, snakes and lizards, and appear to show preference for centipedes and scorpions. Other civet species consumed fruit, such as figs, Connarus sp. and Annona sp., particularly in the unlogged forest, but also consumed invertebrates and vertebrates. Reduced fruit consumption observed in the logged forest may be due to lower availability and may be offset by increased consumption of invertebrates. The increased overlap in diet between Malay civets and other civets in disturbed areas may lead to …
Invasive And Native Plant Response To Fire In A Pennsylvania Piedmont Woodland, Joan M. Welch
Invasive And Native Plant Response To Fire In A Pennsylvania Piedmont Woodland, Joan M. Welch
Geography & Planning Faculty Publications
No abstract provided.
Identification Of Old-Growth Forest Reference Ecosystems Using Historic Land Surveys, Redwood National Park, California, Joy Fritschle
Identification Of Old-Growth Forest Reference Ecosystems Using Historic Land Surveys, Redwood National Park, California, Joy Fritschle
Geography & Planning Faculty Publications
No abstract provided.
Bacterial Community Structure Of Contrasting Soils Underlying Bornean Rain Forests: Inferences From Microarray And Next-Generation Sequencing Methods, Sabrina E. Russo, Ryan Legge, Karrie A. Weber, Eoin L. Brodie, Katherine C. Goldfarb, Andrew K. Benson, Sylvester Tan
Bacterial Community Structure Of Contrasting Soils Underlying Bornean Rain Forests: Inferences From Microarray And Next-Generation Sequencing Methods, Sabrina E. Russo, Ryan Legge, Karrie A. Weber, Eoin L. Brodie, Katherine C. Goldfarb, Andrew K. Benson, Sylvester Tan
School of Biological Sciences: Faculty Publications
Soil microbial diversity is vast, and we lack even basic understanding of how this diversity is distributed ecologically. Using pyrosequencing and microarray methods, we quantified the structure of bacterial communities in two contrasting soils underlying Bornean rain forest (clay and sandy loam) that differ markedly in soil properties, aboveground tree flora, and leaf litter decomposition rates. We found significant soil-related taxonomic and phylogenetic differences between communities that, due to their proximity, are independent of climate. Bacterial communities showed distinct compositional and taxon-abundance distributions that were significantly correlated with the structure of the overlying tree community. Richness of bacteria was greater …