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Articles 31 - 35 of 35
Full-Text Articles in Forest Biology
Spatial Ecology Of The Coachwhip, Masticophis Flagellum (Squamata: Colubridae), In Eastern Texas, Richard W. Johnson, Robert R. Fleet, Michael B. Keck, D. Craig Rudolph
Spatial Ecology Of The Coachwhip, Masticophis Flagellum (Squamata: Colubridae), In Eastern Texas, Richard W. Johnson, Robert R. Fleet, Michael B. Keck, D. Craig Rudolph
Faculty Publications
We radio-tracked nine Masticophis flagellum (Coachwhips) to determine home range, habitat use, and movements in eastern Texas from April to October 2000. Home ranges of Coachwhips contained more oak savanna macrohabitat than early-successional pine plantation or forested seep, based on the availability of these three macrohabitats in the study area. Likewise, within their individual home ranges, Coachwhips used oak savanna more than the other two macrohabitats, based on availability. An analysis of microhabitat use revealed that, relative to random sites within their home range, Coachwhips were found at sites with fewer pine trees and more herbaceous vegetation taller than 30 …
The Science Of Targeting Within Landscapes And Watersheds To Improve Consevation Effectiveness, Todd Walter, Mike Dosskey, Madhu Khanna, Jim Miller, Mark Tomer, John Wiens
The Science Of Targeting Within Landscapes And Watersheds To Improve Consevation Effectiveness, Todd Walter, Mike Dosskey, Madhu Khanna, Jim Miller, Mark Tomer, John Wiens
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
Our ernphasis in this chapter has been an the science that underlies efforts to target conservation efforts to enhance the effeciiveness (and cost-effectiveness) of management, mitigation and restoration.
Past, Present, And Future Old Growth In Frequent-Fire Conifer Forests Of The Western United States, Scott R. Abella, W. Wallace Covington, Peter Z. Fule, Leigh B. Lentile, Andrew J. Sanchez Meador, Penelope Morgan
Past, Present, And Future Old Growth In Frequent-Fire Conifer Forests Of The Western United States, Scott R. Abella, W. Wallace Covington, Peter Z. Fule, Leigh B. Lentile, Andrew J. Sanchez Meador, Penelope Morgan
Public Policy and Leadership Faculty Research
Old growth in the frequent-fire conifer forests of the western United States, such as those containing ponderosa pine (Pinus ponderosa), Jeffrey pine (P. jeffreyi), giant sequoia (Sequioa giganteum) and other species, has undergone major changes since Euro-American settlement. Understanding past changes and anticipating future changes under different potential management scenarios are fundamental to developing ecologically based fuel reduction or ecological restoration treatments. Some of the many changes that have occurred in these forests include shifts from historically frequent surface fire to no fire or to stand-replacing fire regimes, increases in tree density, increased abundance of fire-intolerant trees, decreases in understory …
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
Public Policy and Leadership Faculty Research
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 successional …
Tree Identification And Age Project, Mark Jensen
Tree Identification And Age Project, Mark Jensen
Graduate Research Papers
The purpose of the Tree Identification and Age Project is to use authentic learning activities to extend the current curriculum to include learning that takes place at high levels of cognition. The methods employed integrate higher-order thinking into learning through a hands-on, problem-based approach to authentic scientific investigation. Using a problem-based approach, the learners apply knowledge and skills to solve real problems. The process involves focusing on the problem, identifying relative information, categorizing, critically analyzing, synthesizing that information and effectively communicating the results.