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2012

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Articles 31 - 60 of 330

Full-Text Articles in Forest Sciences

A Value Assessment Of The Gordon Natural Area Of Environmental Studies At The West Chester University Of Pennsylvania, Brandon Nye, Ben Keller, Travis Decaro Oct 2012

A Value Assessment Of The Gordon Natural Area Of Environmental Studies At The West Chester University Of Pennsylvania, Brandon Nye, Ben Keller, Travis Decaro

Gordon Natural Area History & Strategic Plan Documents

No abstract provided.


Thresholds Of Change In Decomposition Rate Along A Dune/Swale Transect On A Virginia Barrier Island, Dominic J. Graziani Oct 2012

Thresholds Of Change In Decomposition Rate Along A Dune/Swale Transect On A Virginia Barrier Island, Dominic J. Graziani

Biological Sciences Theses & Dissertations

Aboveground and belowground decomposition rates were determined along a barrier island dune/swale transect located on the Virginia Coast Reserve-Long Term Ecological Research Site using litterbags and wooden dowels. The objective was to determine the influence of fine scale changes in the environment on decomposition to identify any potential thresholds affecting decomposition rate. Wax myrtle (Morella cerifera L. Small) leaves and dowels of southern yellow pine wood were used as standard substrates to evaluate environmental influences on decay. Aboveground (F=6.494, p < 0.0001) and belowground (F=5.705, p < 0.0001) decay rates (yr-1) showed significant variation among litterbag/dowel locations. Aboveground decay rates (yr-1) ranged from 0.339 (Upper Dune station) …


Naturalization Of Sequoiadendron Giganteum (Cupressaceae) In Montane Southern California, Rudolf Schmid, Mena Schmid Sep 2012

Naturalization Of Sequoiadendron Giganteum (Cupressaceae) In Montane Southern California, Rudolf Schmid, Mena Schmid

Aliso: A Journal of Systematic and Floristic Botany

After the August 1974 fire in the upper Hall Canyon area on the southwestern flank of Black Mountain in the northwestern San Jacinto Mountains, Riverside County, California, the United States Forest Service revegetated the burn in the mixed-conifer forest with the Sierra Nevada endemic Sequoiadendron giganteum (Cupressaceae). On 1 May 2009 a GPS census starting at the head of Hall Canyon revealed both in the canyon and upslope beyond it at least 157 individuals in the vicinity of the Black Mountain Trail, plus an outlier 450 m distant near the summit. This species alien to southern California is regenerating prolifically …


Smokejumper Obituary: Smith, Theodore Mcroberts "Ted" (Missoula 1962), National Smokejumper Association Sep 2012

Smokejumper Obituary: Smith, Theodore Mcroberts "Ted" (Missoula 1962), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Overexpression Of Constans Homologs Co1 And Co2 Fails To Alter Normal Reproductive Onset And Fall Bud Set In Woody Perennial Poplar., Chuan-Yu Hsu, Joshua P. Adams, Kyoungok No, Haiying Liang, Richard Meilan, Olga Pechanova, Abdelali Barakat, John E. Carlson, Grier P. Page, Cetin Yuceer Sep 2012

Overexpression Of Constans Homologs Co1 And Co2 Fails To Alter Normal Reproductive Onset And Fall Bud Set In Woody Perennial Poplar., Chuan-Yu Hsu, Joshua P. Adams, Kyoungok No, Haiying Liang, Richard Meilan, Olga Pechanova, Abdelali Barakat, John E. Carlson, Grier P. Page, Cetin Yuceer

CFR Publications

CONSTANS (CO) is an important flowering-time gene in the photoperiodic flowering pathway of annual Arabidopsis thaliana in which overexpression of CO induces early flowering, whereas mutations in CO cause delayed flowering. The closest homologs of CO in woody perennial poplar (Populus spp.) are CO1 and CO2. A previous report showed that the CO2/FLOWERING LOCUS T1 (FT1) regulon controls the onset of reproduction in poplar, similar to what is seen with the CO/FLOWERING LOCUS T (FT) regulon in Arabidopsis. The CO2/FT1 regulon was also reported to control fall bud set. Our long-term field observations show that overexpression of CO1 and CO2 …


Smoke Science Plan: The Path Forward, Elise Lequire, Molly Hunter Sep 2012

Smoke Science Plan: The Path Forward, Elise Lequire, Molly Hunter

Joint Fire Science Program Digests

Wildland fire managers face increasingly steep challenges to meet air quality standards while planning prescribed fire and its inevitable smoke emissions. The goals of sound fire management practices, including fuel load reduction through prescribed burning, are often challenged by the need to minimize smoke impacts on communities. Wildfires, of course, also produce smoke, so managers must constantly weigh the benefits and risks of controlled burns and their generated emissions against potential wildfires and their generated emissions and must communicate those benefits and risks to the public. Moreover, research on and the modeling of smoke emissions from fire is a rapidly …


Smokejumper Obituary: Bassett, Richard (Pilot 0000), National Smokejumper Association Aug 2012

Smokejumper Obituary: Bassett, Richard (Pilot 0000), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Efficacy Of Treatments Against Garlic Mustard (Alliaria Petiolata) And Effects On Forest Understory Plant Diversity, Lindsey M. Shartell, Linda M. Nagel, Andrew J. Storer Aug 2012

Efficacy Of Treatments Against Garlic Mustard (Alliaria Petiolata) And Effects On Forest Understory Plant Diversity, Lindsey M. Shartell, Linda M. Nagel, Andrew J. Storer

Michigan Tech Publications, Part 1

Garlic mustard, an invasive exotic biennial herb, has been identified in the Upper Peninsula of Michigan, but is not yet widely distributed. We tested the effectiveness and impact of management tools for garlic mustard in northern hardwood forests. Six treatment types (no treatment control, hand-pull, herbicide, hand-pull/herbicide, scorch, and hand-pull/scorch) were applied within a northern hardwood forest invaded by garlic mustard. We sampled understory vegetation within plots to compare garlic mustard abundance (distinguishing first and second year plants) and native plant diversity before and after treatment. Results immediately following treatment indicated that garlic mustard seedling abundance was significantly reduced by …


What Is Agroforestry? Aug 2012

What Is Agroforestry?

Working Trees (USDA-NAC)

What is agroforestry?

Agroforestry is the intentional mixing of trees and shrubs into crop and/or animal production systems to create environmental, economic and social benefits.


What Are Agroforestry's Income Opportunities Aug 2012

What Are Agroforestry's Income Opportunities

Working Trees (USDA-NAC)

What are agroforestry's income opportunities?

Agroforestry is an approach to land use that incorporates trees and shrubs into agricultural systems and allows for the production of trees, crops and/or livestock from the same piece of land. It offers ways to take advantage of profitable product markets and, at the same time, helps improve the land and the environment.

Look at the fields, woods, streamsides and fence rows around a farm or ranch. Are any of these areas under utilized? There are many opportunities for farmers and ranchers to introduce agroforestry practices on their land, which may open up new income …


A True Partnership, Paul Alaback Aug 2012

A True Partnership, Paul Alaback

Forest Management Faculty Publications

No abstract provided.


Fuel Dynamics In Southern Pine Beetle-Killed Stands And Their Implication To Fire Behavior, Jennifer Evans Aug 2012

Fuel Dynamics In Southern Pine Beetle-Killed Stands And Their Implication To Fire Behavior, Jennifer Evans

All Theses

The increase in both southern pine beetle (SPB) (Dendroctonus frontalis Zimm) outbreak and wildfire occurrence in recent decades has resulted in a growing concern regarding possible interactions. Few studies have quantified fuel characteristics of SPB-killed stands, and none has studied the dynamics of this fuel complex over time. Moreover, how changes in these fuels affect fire behavior remains unknown. To address this lack of empirical data, field measurements and modeling were combined to study fuel dynamics and potential fire behavior within control and post-outbreak loblolly pine-dominated forest stands across a chronosequence ranging from 0 to 8 years since outbreak. Fuels …


A Reexamination Of The Eastern Collared Lizard (Crotaphytus Collaris Collaris) In Arkansas, Ashley A. Grimsley Aug 2012

A Reexamination Of The Eastern Collared Lizard (Crotaphytus Collaris Collaris) In Arkansas, Ashley A. Grimsley

Graduate Theses and Dissertations

Loss of suitable habitat is a threat to species worldwide. Habitat destruction, including loss, change, and fragmentation of habitat, is the leading cause of species extinction. Eastern collared lizards (Crotaphytus collaris collaris) are habitat specialists on glades. Both C. c. collaris and glade habitats are rare and of special concern in the state of Arkansas. Many glade populations have already been extirpated in the Ozarks of Arkansas and Missouri. Increasing knowledge of the distribution, habitat structure, and population dynamics of C. c. collaris is important to ensure the survival of this species in Arkansas.

A literature review of …


Geographical Distribution And Survival Of Iris Yellow Spot Virus In Spiny Sowthistle, Sonchus Asper, In Georgia, Claudia Nischwitz Aug 2012

Geographical Distribution And Survival Of Iris Yellow Spot Virus In Spiny Sowthistle, Sonchus Asper, In Georgia, Claudia Nischwitz

All Current Publications

No abstract provided.


Smokejumper Obituary: Ratzlaff, Leon H. (Missoula 1943), National Smokejumper Association Jul 2012

Smokejumper Obituary: Ratzlaff, Leon H. (Missoula 1943), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Howard, Robert L. "Bob" (Missoula 1965), National Smokejumper Association Jul 2012

Smokejumper Obituary: Howard, Robert L. "Bob" (Missoula 1965), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Peer Influence Of Non-Industrial Private Forest Owners In The Western Upper Peninsula Of Michigan, Jillian R. Schubert, Audrey L. Mayer Jul 2012

Peer Influence Of Non-Industrial Private Forest Owners In The Western Upper Peninsula Of Michigan, Jillian R. Schubert, Audrey L. Mayer

College of Forest Resources and Environmental Science Publications

Understanding how non-industrial private forest (NIPF) owners gain and share information regarding the management of their property is very important to policy makers, yet our knowledge regarding how and to what degree this information flows over privately owned landscapes is limited. The work described here seeks to address this shortfall. Widely administered surveys with close-ended questions may not adequately capture this information flow within NIPF owner communities. This study used open-ended questions in interviews of clusters of NIPF owners to determine whether and to what extent owners influence each other directly (through conversations or referrals to sources of advice) or …


Implications Of The Forest Charges Law To Rattan-Based Livelihoods Of Indigenous Peoples Of The Philippines, Vince Michael A. Docta, Ramon A. Razal Jul 2012

Implications Of The Forest Charges Law To Rattan-Based Livelihoods Of Indigenous Peoples Of The Philippines, Vince Michael A. Docta, Ramon A. Razal

Journal of Public Affairs and Development

This policy research investigated the question: "What are the implications of Republic Act 7161 (or the Forest Charges Law) as it is interpreted, imposed, and implemented towards sustainable rattan-based livelihoods of indigenous peoples (IP) communities in the Philippines?" An in-depth review and analysis of the Act was undertaken by examining the past policies, relevant administrative orders, and memorandum circulars issued by the Department of Environment and Natural Resources (DENR) and relevant forerunner agencies. The policy performance of forest charges via-a-vis collection and resource conservation targets and the perceptions of the IP communities towards RA 7161 were assessed. Results provide evidence …


Facilitation Drives Mortality Patterns Along Succession Gradients Of Aspen-Conifer Forests, W. John Calder, Samuel B. St. Clair Jun 2012

Facilitation Drives Mortality Patterns Along Succession Gradients Of Aspen-Conifer Forests, W. John Calder, Samuel B. St. Clair

Aspen Bibliography

While it is well established that facilitation and competition are important structuring forces in plant communities, a clear understanding of the interactions between them and how they change through the life stages of plants and affect long-term plant community development is lacking. We have observed that conifer seedlings are rarely found growing in meadows but readily establish under adjacent aspen stands, particularly at the base of aspen trees, creating the potential for antagonistic interactions in later life stages. To examine these relationships and their potential consequences on forest community development, we characterized patterns of establishment, regeneration, and overstory mortality of …


Smokejumper Obituary: Kosy, James "Jim" (North Cascades 1968), National Smokejumper Association Jun 2012

Smokejumper Obituary: Kosy, James "Jim" (North Cascades 1968), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Agenda: A Low-Carbon Energy Blueprint For The American West, University Of Colorado Boulder. Natural Resources Law Center, University Of Colorado Boulder. Renewable And Sustainable Energy Institute, Western Resource Advocates, Rocky Mountain Research Station (Fort Collins, Colo.) Jun 2012

Agenda: A Low-Carbon Energy Blueprint For The American West, University Of Colorado Boulder. Natural Resources Law Center, University Of Colorado Boulder. Renewable And Sustainable Energy Institute, Western Resource Advocates, Rocky Mountain Research Station (Fort Collins, Colo.)

A Low-Carbon Energy Blueprint for the American West (Martz Summer Conference, June 6-8)

The future of the planet may depend upon our ability to increase energy supplies even as we reduce carbon emissions. This conference will address how a low-carbon energy program might evolve with a particular focus on the American West. It will focus on the future of energy in the West--on a “managed transition” to a different energy mix, on the need to nest this effort in a framework that acknowledges interconnections, and on identifying the most salient opportunities to consider the legal, political, financial, and technical challenges.


Herbaceous 2012 (June 3), Amy L. Myers, Julia I. Chapman, Ryan W. Mcewan Jun 2012

Herbaceous 2012 (June 3), Amy L. Myers, Julia I. Chapman, Ryan W. Mcewan

Data Files: Drew Woods Permanent Plots

Herbaceous vegetation data collected in 2012 at Drew Woods State Nature Preserve in Darke County, OH. Data key is provided in a supplemental file.


Prototype For Monitoring And Forecasting Fall Foliage Coloration In Real Time From Satellite Data, Xiaoyang Zhang, Mitchell D. Goldberg, Yunyue Yu Jun 2012

Prototype For Monitoring And Forecasting Fall Foliage Coloration In Real Time From Satellite Data, Xiaoyang Zhang, Mitchell D. Goldberg, Yunyue Yu

GSCE Faculty Publications

While determining vegetation phenology from the time series of historical satellite data has been widely investigated throughout the last decade, little effort has been devoted to real-time monitoring and short-term forecasting. The latter is more important for numerical weather modeling, ecosystem forecasting, forest and crop management, and health risk warning. In this study we developed a prototype approach for the real-time monitoring and short-term forecasting of fall foliage status (including low coloration, moderate coloration, near-peak coloration, peak coloration, and post-peak coloration) using temporal satellite observations. The algorithm combined the climatology of vegetation phenology and temporally available satellite observations to establish …


Wildland Urban Interface Assessment Of San Luis Obispo, California, Brian Hanson, Stephen Kadash, Nicholi Mackewicz Jun 2012

Wildland Urban Interface Assessment Of San Luis Obispo, California, Brian Hanson, Stephen Kadash, Nicholi Mackewicz

Natural Resources Management and Environmental Sciences

The purpose of this report is to provide a wildland fire hazard assessment of communities in the city of San Luis Obispo, California, and to identify prescriptions designed to prevent property damage and loss of life in the event of a wildfire. These prescriptions are adopted from established Shelter-In-Place communities who practice fire wise community wildfire prevention.There are eight communities that were identified as being fire prone. Each community had its own set of fire hazard, for example, flammable vegetation against a home, tall dead grass behind structures, or overhanging trees that would prevent an engine from passing. Once the …


Smokejumper Obituary: Rausch, Clarence (Idaho City 1957), National Smokejumper Association May 2012

Smokejumper Obituary: Rausch, Clarence (Idaho City 1957), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Mccabe, Terry (Ncsb 1958), National Smokejumper Association May 2012

Smokejumper Obituary: Mccabe, Terry (Ncsb 1958), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Smokejumper Obituary: Ross, Loyd Dale "Curley" (Mccall 1951), National Smokejumper Association May 2012

Smokejumper Obituary: Ross, Loyd Dale "Curley" (Mccall 1951), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Herbaceous 2012 (May 19), Amy L. Myers, Julia I. Chapman, Ryan W. Mcewan May 2012

Herbaceous 2012 (May 19), Amy L. Myers, Julia I. Chapman, Ryan W. Mcewan

Data Files: Drew Woods Permanent Plots

Herbaceous vegetation data collected in 2012 at Drew Woods State Nature Preserve in Darke County, OH. Data key is provided in a supplemental file.


Smokejumper Obituary: Baumann, Roddy (Cave Junction 1970), National Smokejumper Association May 2012

Smokejumper Obituary: Baumann, Roddy (Cave Junction 1970), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Herbaceous 2012 (May 5), Amy L. Myers, Julia I. Chapman, Ryan W. Mcewan May 2012

Herbaceous 2012 (May 5), Amy L. Myers, Julia I. Chapman, Ryan W. Mcewan

Data Files: Drew Woods Permanent Plots

Herbaceous vegetation data collected in 2012 at Drew Woods State Nature Preserve in Darke County, OH. Data key is provided in a supplemental file.