Demographic Survey Of The Sohisika (Schizolaena Tampoketsana) At Ankafobe, Madagascar,
2014
SIT Study Abroad
Demographic Survey Of The Sohisika (Schizolaena Tampoketsana) At Ankafobe, Madagascar, James Lucas
Independent Study Project (ISP) Collection
No abstract provided.
Consequences Of A Refuge For The Predator-Prey Dynamics Of A Wolf-Elk System In Banff National Park, Alberta, Canada,
2014
University of Montana - Missoula
Consequences Of A Refuge For The Predator-Prey Dynamics Of A Wolf-Elk System In Banff National Park, Alberta, Canada, Joshua F. Goldberg, Mark Hebblewhite, Jonathan M. Bardsley
Wildlife Biology Faculty Publications
Refugia can affect predator-prey dynamics via movements between refuge and non-refuge areas. We examine the influence of a refuge on population dynamics in a large mammal predator-prey system. Wolves (Canis lupus) have recolonized much of their former range in North America, and as a result, ungulate prey have exploited refugia to reduce predation risk with unknown impacts on wolf-prey dynamics. We examined the influence of a refuge on elk (Cervus elaphus) and wolf population dynamics in Banff National Park. Elk occupy the Banff townsite with little predation, whereas elk in the adjoining Bow Valley experience higher wolf predation. The Banff …
Stand Density And Age Affect Tree-Level Structural And Functional Characteristics Of Young, Postfire Lodgepole Pine In Yellowstone National Park,
2014
George Fox University
Stand Density And Age Affect Tree-Level Structural And Functional Characteristics Of Young, Postfire Lodgepole Pine In Yellowstone National Park, Paige E. Copenhaver-Parry, Daniel B. Tinker
Faculty Publications - Department of Biological & Molecular Science
More frequent fire activity associated with climate warming is expected to increase the extent of young forest stands in fire-prone landscapes, yet growth rates and biomass allocation patterns in young forests that regenerated naturally following stand-replacing fire have not been well studied. We assessed the structural and functional characteristics of young, postfire lodgepole pine (Pinus contorta var. latifolia) trees across the Yellowstone subalpine plateaus to understand the influence of postfire stand density and age on tree-level aboveground biomass (AB), component biomass (bole, branch, foliage), partitioning to components, tree-level aboveground net primary productivity (ANPP) and leaf area (LA). Sixty …
Evaluation Of Red Alder Mortality In The Little Creek Watershed Following The 2009 Lockheed Fire,
2014
California Polytechnic State University, San Luis Obispo
Evaluation Of Red Alder Mortality In The Little Creek Watershed Following The 2009 Lockheed Fire, Dylan Robert Theobald
Master's Theses
Five hundred eighty red alder along a 2.16 km portion of the Little Creek riparian zone were assessed for mortality following the 2009 Lockheed Fire near Davenport, California. The study area was divided into burn severity zones and every red alder within the riparian zone was observed and assessed for mortality. Height, diameter at breast height (DBH), and age were collected on selected trees. An estimation of red alder large woody debris (LWD) input to Little Creek since a 2010 LWD survey (Smith, 2010) was calculated using average red alder tree dimensions applied to Smalian’s formula (MLNRO, 2011). The mean …
Examining Historical And Current Mixed-Severity Fire Regimes In Ponderosa Pine And Mixed-Conifer Forests Of Western North America,
2014
University of California - Santa Barbara
Examining Historical And Current Mixed-Severity Fire Regimes In Ponderosa Pine And Mixed-Conifer Forests Of Western North America, Dennis C. Odion, Chad T. Hanson, Andre Arsenault, William L. Baker, Dominick A. Dellasala, Richard L. Hutto, Walt Klenner, Max A. Moritz, Rosemary L. Sherriff, Thomas T. Veblen, Mark A. Williams
Biological Sciences Faculty Publications
There is widespread concern that fire exclusion has led to an unprecedented threat of uncharacteristically severe fires in ponderosa pine (Pinus ponderosa Dougl. ex. Laws) and mixed-conifer forests of western North America. These extensive montane forests are considered to be adapted to a low/moderate-severity fire regime that maintained stands of relatively old trees. However, there is increasing recognition from landscape-scale assessments that, prior to any significant effects of fire exclusion, fires and forest structure were more variable in these forests. Biota in these forests are also dependent on the resources made available by higher-severity fire. A better understanding of …
Invasive Plant Erodes Local Song Diversity In A Migratory Passerine,
2014
USDA Forest Service
Invasive Plant Erodes Local Song Diversity In A Migratory Passerine, Yvette K. Ortega, Aubree Benson, Erick Greene
Biological Sciences Faculty Publications
Exotic plant invasions threaten ecosystems globally, but we still know little about the specific consequences for animals. Invasive plants can alter the quality of breeding habitat for songbirds, thereby impacting important demographic traits such as dispersal, philopatry, and age structure. These demographic effects may in turn alter song-learning conditions to affect song structure and diversity. We studied Chipping Sparrows (Spizella passerina) breeding in six savannas that were either dominated by native vegetation or invaded by spotted knapweed (Centaurea stoebe), an exotic forb known to diminish food resources and reproductive success. Here, we report that the prevalence of older birds was …
Using Infrared-Triggered Cameras To Monitor Activity Of Forest Carnivores,
2014
Texas Parks and Wildlife Dept, Richland Creek Wildlife Management Area, Streetman TX 75859
Using Infrared-Triggered Cameras To Monitor Activity Of Forest Carnivores, Matthew E. Symmank, Christopher E. Comer, James C. Kroll
Faculty Publications
The activity patterns of 4 forest predator species were monitored, using infrared-triggered cameras, within a 1318-ha study area in East Texas. We recorded 161 photographic capture events in 1925 trap-nights over 17 weeks. Photographic capture events included 18 Lynx rufus (Bobcat), 109 Procyon lotor (Raccoon), 21 Didelphis virginiana (Virginia Opossum), and 13 Canis latrans (Coyote). We developed an easily replicated method of measuring time on a percent scale to compare activity data over several months, accounting for changes in sunrise and sunset times. Bobcat activity was 38.9% crepuscular and 22.1% diurnal. The activity of the other 3 species was mostly …
Avoidance Of Canopy Gaps By A Common Land Snail,
2014
Bridgewater State University
Avoidance Of Canopy Gaps By A Common Land Snail, Christopher P. Bloch, Michael Stock
Biological Sciences Faculty Publications
Because canopy gaps are characterized by elevated temperature and decreased humidity relative to closed-canopy forest, terrestrial gastropods may be exposed to greater desiccation stress in gaps than in undisturbed forest. We placed individuals of Caracolus caracolla at the edges of canopy gaps in montane forest in Puerto Rico and observed their movements. Individuals preferentially moved out of gaps except in one gap on the first night of the study, and the proportion of individuals recaptured inside gaps decreased over time. Individuals moved, on average, farther into forest than into gaps. Juveniles and adults responded similarly. These results suggest that C. …
Timber Talk, Vol. 52, No. 1, February 1, 2014,
2014
University of Nebraska - Lincoln
Timber Talk, Vol. 52, No. 1, February 1, 2014
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; Lumber Abbreviations; Timber Talk Editor Retiring; North American Pellet Exports Continue to Rise; Wood: Fastest Growing Heating Fuel in America; EAB Quarantine Updates; Chinese Wood Demand Expected to Rise 50% by 2015; Nebraska Forestry Spotlight; The Ancient Art of Cooperage; The Trading Post; Timber Sales
Timber Talk, Vol. 52, No. 2, June 1, 2014,
2014
University of Nebraska - Lincoln
Timber Talk, Vol. 52, No. 2, June 1, 2014
Timber Talk: Nebraska Forest Industry Newsletter
Lumber Market News; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried; Commercial Hardwood Lumber Species; How Should You Charge?; Pressure Treated Wood; Nebraska Forest Industry Spotlight; The Trading Post; Food for Thought — TIME; Editor: Adam Smith Graphic/Layout: Anne Moore
Building Trust, Establishing Credibility, And Communicating Fire Issues With The Public,
2014
National Interagency Fire Center
Building Trust, Establishing Credibility, And Communicating Fire Issues With The Public, Josh Mcdaniel
Joint Fire Science Program Digests
With more people than ever living in the vicinity of the wildland-urban interface, communicating wildland fire management activities and building trust with the public is paramount for safety. Although the time and resources it takes to build and maintain the public’s trust may seem daunting, it may be one of the most important factors determining the long-term viability of a fire management program. Trust is built over time through personal relationships with citizens and communities and also by demonstrating competence and establishing credibility. When trust and confidence have been established, managers can enjoy strong support of fire and fuels management …
Temporal Fluctuation Scaling In Populations And Communities,
2014
Hebrew University of Jerusalem
Temporal Fluctuation Scaling In Populations And Communities, Michael Kalyuzhny, Yishai Schreiber, Rachel Chocron, Curtis H. Flather, Ronen Kadmon, David A. Kessler, Nadav M. Shnerb
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
Taylor’s law, one of the most widely accepted generalizations in ecology, states that the variance of a population abundance time series scales as a power law of its mean. Here we reexamine this law and the empirical evidence presented in support of it. Specifically, we show that the exponent generally depends on the length of the time series, and its value reflects the combined effect of many underlying mechanisms. Moreover, sampling errors alone, when presented on a double logarithmic scale, are sufficient to produce an apparent power law. This raises questions regarding the usefulness of Taylor’s law for understanding ecological …
Overlease Plots, Tree & Amur Honeysuckle Data, 1999-2014,
2014
West Chester University of Pennsylvania
Overlease Plots, Tree & Amur Honeysuckle Data, 1999-2014, Kendra Mcmillin, Gerard Hertel
William Overlease Plant Succession Study Documents
No abstract provided.
Development And Evaluation Of High Resolution Simulation Tools To Improve Fire Weather Forecasts,
2014
Washington State University
Development And Evaluation Of High Resolution Simulation Tools To Improve Fire Weather Forecasts, Brian K. Lamb, Jason M. Forthofer, Peter R. Robichaud
Joint Fire Science Program Research Project Reports
Fire weather forecasts rely on numerical weather simulations where the grid size is 4 km x 4 km or larger. In areas of complex terrain, this model resolution will not capture the details of wind flows associated with complicated topography. Wind channeling in valleys, wind speed-up over mountains and ridges, and enhanced turbulence associated with rough terrain and tall forest canopies are poorly represented in current weather model applications. A number of numerical wind flow models have been developed for simulating winds at high resolution; however, there are limited observational data available at the spatial scales appropriate for evaluating these …
Exploring How Deliberation On Scientific Information Shapes Stakeholder Perceptions Of Forest Management And Climate Change,
2014
University of Idaho
Exploring How Deliberation On Scientific Information Shapes Stakeholder Perceptions Of Forest Management And Climate Change, Troy E. Hall, Jarod J. Blades
Joint Fire Science Program Research Project Reports
Climate change has resulted in rapid biophysical changes in forests of the western U.S. and has prompted the need for an increased understanding of potential impacts and adaption measures. Land managers, policy makers, and community officials lack locally relevant climate change science and are urgently calling for research to inform management decisions. Nevertheless, a substantial disconnect remains between emerging scientific information and its application in management decisions. Effective action depends on understanding regional and local implications of climate change and open, reasoned discussions about current research and potential mitigation actions among researchers, land managers, and other stakeholders. Boundary objects have …
Fire Effects On Seedling Establishment Success Across Treeline: Implications For Future Tree Migration And Flammability In A Changing Climate,
2014
University of Alaska Fairbanks
Fire Effects On Seedling Establishment Success Across Treeline: Implications For Future Tree Migration And Flammability In A Changing Climate, F. S. Chapin Iii, Teresa N. Hollingsworth, Rebecca E. Hewitt
Joint Fire Science Program Research Project Reports
Understanding the complex mechanisms controlling treeline advance or retreat in the arctic and subarctic has important implications for projecting ecosystem response to changes in climate. Changes in landcover due to a treeline biome shift would alter climate feedbacks (carbon storage and energy exchange), ecosystem services such as wildlife and berry habitat, and landscape flammability. Wildfire frequency and extent has increased in the last half-century in the boreal forest and tundra in response to warmer weather and lower precipitation. Invasion of tundra by trees may be facilitated by wildfire disturbance, which exposes new seedbeds, increases nutrient availability immediately post-fire, and creates …
Tree Fall Data, Post-"Super Storm" Sandy, 2012-2014,
2014
West Chester University of Pennsylvania
Tree Fall Data, Post-"Super Storm" Sandy, 2012-2014, Kendra L. Mcmillin, Gerard Hertel
Historical Tree Fall Study Documents
Since Superstorm Sandy in October 2012, Kendra McMillin and Gerry Hertel monitored tree fall in the Gordon Natural Area. After Sandy there was a wind event in August, 2013 and then the ice storm in February 2014 which caused further tree fall.
A White Ash (Fraxinus Americana) Status Assessment And Emerald Ash Borer (Agrilus Planipennis) Management Plan For The Gordon Natural Area,
2014
West Chester University of Pennsylvania
A White Ash (Fraxinus Americana) Status Assessment And Emerald Ash Borer (Agrilus Planipennis) Management Plan For The Gordon Natural Area, Zack T. Signora, Kendra L. Mcmillin, Gregory D. Turner
White Ash Distribution Study Documents
No abstract provided.
A Decade Comparison Of Forest Dynamics At The Gordon Natural Area, A Chester County Preserve,
2014
West Chester University
A Decade Comparison Of Forest Dynamics At The Gordon Natural Area, A Chester County Preserve, Kelly Ryan, Gregory D. Turner
Forest Health Monitoring Study Documents
No abstract provided.
Serendipitous Data Following A Severe Windstorm In An Old-Growth Pine Stand,
2014
University of Arkansas at Monticello
Serendipitous Data Following A Severe Windstorm In An Old-Growth Pine Stand, D. C. Bragg, J. D. Riddle
Journal of the Arkansas Academy of Science
Reliable dimensional data for old-growth pine-dominated forests in the Gulf Coastal Plain of Arkansas are hard to find, but sometimes unfortunate circumstances provide good opportunities to acquire this information. On July 11, 2013, a severe thunderstorm with high winds struck the Levi Wilcoxon Demonstration Forest (LWDF) near Hamburg, Arkansas. This storm uprooted or snapped dozens of large pines and hardwoods and provided an opportunity to more closely inspect these rare specimens. For instance, the largest tree killed in this event, a loblolly pine (Pinus taeda), was 105 cm in diameter at breast height, 39.3 m tall, and if the tree …
