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- Apparent survival (1)
- Aquatic organism passage (1)
- Aspen (1)
- Blister rust (1)
- Culverts (1)
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- Dicamptodon aterrimus (1)
- Distance methods (1)
- Effects of roads on dispersal (1)
- Forest landscape models (FLM) (1)
- GIS (1)
- Methods comparison (1)
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- Mountain pine beetle (1)
- Pinus albicaulis (1)
- Post-fire regeneration (1)
- Regeneration monitoring (1)
- SIMPPLLE (1)
- Smokejumper (1)
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- Stream amphibian (1)
- U.S. Forest Service Inventory and Analysis (FIA) data (1)
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- Wildfire (1)
Articles 1 - 5 of 5
Full-Text Articles in Forest Sciences
Developing Strategies To Initialize Landscape-Scale Vegetation Maps From Fia Data To Enhance Resolution Of Individual Species-Size Cohort Representation In The Landscape Disturbance Model, Simpplle, Jacob Muller
Graduate Student Theses, Dissertations, & Professional Papers
The ability of forest resource managers to understand and anticipate landscape-scale change in composition and structure relies upon an adequate characterization of the current forest composition and structure of various patches (or stands), along with the capacity of forest landscape models (FLMs) to predict patterns of growth, succession, and disturbance at multiple scales over time. Comprehensive vegetation maps, which classify patch polygons or raster cells into forest cover types, can be developed from available inventory data (e.g., FIA Grid) in combination with remotely sensed data, but a simple categorical forest type, even one incorporating average size, may not provide adequate …
Assessing Alternative Methods For Monitoring Populus Tremuloides Following Restoration Treatments, Michael Fowler
Assessing Alternative Methods For Monitoring Populus Tremuloides Following Restoration Treatments, Michael Fowler
Graduate Student Theses, Dissertations, & Professional Papers
A variety of alternative sampling methods, commonly known as “Distance Methods”, were tested to determine if they could be a better choice for monitoring Populus tremuloides (quaking aspen) regeneration following aspen restoration treatments. These methods were evaluated based on their ability to accurately and efficiently estimate three common aspen stand characteristics used to gauge aspen restoration treatment effectiveness: aspen regeneration density, browse pressure, and height class distribution. Distance Method accuracy and efficiency were compared to a standard fixed-radius plot sampling method in four treated aspen stands in western Wyoming. None of the Distance Methods fulfilled all of the requirements, which …
The Effects Of Seed Source Health On Whitebark Pine Regeneration Density After Wildfire, Signe B. Leirfallom
The Effects Of Seed Source Health On Whitebark Pine Regeneration Density After Wildfire, Signe B. Leirfallom
Graduate Student Theses, Dissertations, & Professional Papers
Whitebark pine (Pinus albicaulis) is declining nearly range-wide largely from mountain pine beetle (Dendroctonus ponderosae) outbreaks and the exotic pathogen Cronartium ribicola, which causes the disease white pine blister rust. With high mortality in cone-bearing whitebark pine, seed production may not be sufficient to support natural regeneration after disturbance such as wildfire. The objective of this study was to examine the relationship between whitebark pine seed source health and whitebark pine regeneration density in adjacent, stand-replacing burns. I sampled regeneration patterns and seed source health and status in 15 burns within six national forests and …
Spatial Patterns And Physical Factors Of Smokejumper Utilization Since 2004, Tyson A. Atkinson
Spatial Patterns And Physical Factors Of Smokejumper Utilization Since 2004, Tyson A. Atkinson
Graduate Student Theses, Dissertations, & Professional Papers
This research examines patterns of aerial smokejumper usage in the United States. I assess landscape and environmental factors of their deployment using a detailed nine-year record of smokejumper activity in combination with terrain, fuels, and transportation network data. Specifically, the research seeks to identify commonalities in location (proximity), terrain, fuels, fire occurrence, and accessibility of smokejumper actions that inform current usage and identify opportunities for improved utilization. Terrain parameters (steep, rugged, inaccessible) of the western U.S. were classified and a baseline travel time grid was created (30 meter resolution). Fires in which smokejumpers responded were compared with all fires that …
Effects Of Road-Stream Crossings On Populations Of The Idaho Giant Salamander (Dicamptodon Aterrimus), Richard K. Honeycutt
Effects Of Road-Stream Crossings On Populations Of The Idaho Giant Salamander (Dicamptodon Aterrimus), Richard K. Honeycutt
Graduate Student Theses, Dissertations, & Professional Papers
Habitat disturbances affect wildlife populations through numerous mechanisms, and determining specific components of habitat disturbances affecting those populations is challenging. For example, a single disturbance can both change local habitat conditions and impose limitations on dispersal of animals. Both of these components can negatively affect biological responses, such as body condition, local movement patterns, or survival. Culverts are a habitat disturbance having both of these components. Culverts affect local habitat conditions by increasing sediment levels in downstream reaches, negatively affecting animals downstream of culverts. Culverts also impose limits on dispersal by blocking passage of stream organisms to upstream reaches, negatively …