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Articles 1 - 30 of 69
Full-Text Articles in Forest Sciences
Landscapes Are Cornerstones Of Sustainability Programs, Don Spence
Landscapes Are Cornerstones Of Sustainability Programs, Don Spence
Sustainability Conference
Typical American landscapes are not sustainable in an economic or biological framework. The essence of the idea of sustainable growth and development are centered on the idea that those activities are not degrading natural resources or that they are outstrip budgets. A significant piece of any sustainable management plan is tied to how we manage our landscapes, how we use plants; specifically, how much grass there is, and how many native plants there are. Sustainable landscapes should require less chemical and financial inputs, which in the end, saves money and increases the biological value of the land and creates a …
Fagus Sylvatica (European Beech), #1009, Megan L. Trafford
Fagus Sylvatica (European Beech), #1009, Megan L. Trafford
BIO 140 Arboretum Project
No abstract provided.
Tilia Cordata (Littleleaf Linden) #1059, Heather Noel Mckee
Tilia Cordata (Littleleaf Linden) #1059, Heather Noel Mckee
BIO 140 Arboretum Project
In this paper I studied the Tilia cordata, more commonly known as the Littleleaf Linden, over the course of three months. I included the history and uses of the Linden tree along with its symbolic value in European culture. This tree symbolizes friendship and peace which coincides with the critical concerns of the Sisters of Mercy.
Can Trees Get Cancer?, Michael Kuhns
Can Trees Get Cancer?, Michael Kuhns
All Current Publications
This factsheet describes various cancer-like growths that are commonly found on trees.
Taxonomic Similarity Does Not Predict Necessary Sample Size For Ex Situ Conservation: A Comparison Among Five Genera, Sean Hoban, Taylor Callicrate, John Clark, Susan Deans, Michael Dosmann, Priyanka Dipak Kadav, Et Al.
Taxonomic Similarity Does Not Predict Necessary Sample Size For Ex Situ Conservation: A Comparison Among Five Genera, Sean Hoban, Taylor Callicrate, John Clark, Susan Deans, Michael Dosmann, Priyanka Dipak Kadav, Et Al.
Michigan Tech Publications
Effectively conserving biodiversity with limited resources requires scientifically informed and efficient strategies. Guidance is particularly needed on how many living plants are necessary to conserve a threshold level of genetic diversity in ex situ collections. We investigated this question for 11 taxa across five genera. In this first study analysing and optimizing ex situ genetic diversity across multiple genera, we found that the percentage of extant genetic diversity currently conserved varies among taxa from 40% to 95%. Most taxa are well below genetic conservation targets. Resampling datasets showed that ideal collection sizes vary widely even within a genus: one taxon …
Taking It To The Road: Utah Biochar Workshops Increase Knowledge And Lead To Behavior Change, Megan Dettenmaier, Lauren Dupey, Darren Mcavoy
Taking It To The Road: Utah Biochar Workshops Increase Knowledge And Lead To Behavior Change, Megan Dettenmaier, Lauren Dupey, Darren Mcavoy
All Current Publications
This fact sheet describes attitude and behavior changes that have resulted from attending the statewide biochar workshop program. By administering surveys 6 to 8 months following workshops, authors learned that attendees were making biochar and biochar kilns, and that attitudes about biochar remained positive.
Perceptions Of Forest Change In The Governmental Region Of Kaffrine, Senegal, Rhiley E. Allbee
Perceptions Of Forest Change In The Governmental Region Of Kaffrine, Senegal, Rhiley E. Allbee
Dissertations, Master's Theses and Master's Reports
Sénégal is a semi-arid West African country with a diverse ethnic makeup and a rapidly growing population that is largely rural, predominantly employed within the agricultural sector, and heavily reliant on the harvesting of forest products within state owned forests where populations have usufruct rights. The country experienced significant changes in land cover throughout the 20th century due to a series of major droughts and large expansions in agriculture. These changes were partially concentrated throughout the region of Kaffrine, where the wooded savannas of the early 20th century were systematically replaced by agriculture and converted to a shrub …
Mule Deer Impede Pando’S Recovery: Implications For Aspen Resilience From A Single-Genotype Forest, Paul C. Rogers, Darren J. Mcavoy
Mule Deer Impede Pando’S Recovery: Implications For Aspen Resilience From A Single-Genotype Forest, Paul C. Rogers, Darren J. Mcavoy
Ecology Center Publications
Aspen ecosystems (upland Populus-dominated forests) support diverse species assemblages in many parts of the northern hemisphere, yet are imperiled by common stressors. Extended drought, fire suppression, human development, and chronic herbivory serve to limit the sustainability of this keystone species. Here we assess conditions at a renowned quaking aspen (Populus tremuloides) grove—purportedly the largest living organism on earth—with ramifications for aspen biogeography globally. The “Pando” clone is 43 ha and estimated to contain 47,000 genetically identical aspen ramets. This iconic forest is threatened in particular by herbivory, and current management activities aim to reverse the potential for …
Salve Regina Arboretum Ten Year Plan To Reach Level Iii Accreditation, Jameson Chace, Helen Papp, Allyson Gilbert, Madeline Lark, Kyle Mcguire, Krysta Tsangarides, Madisen Archibald, Meghan Beals, Mackenzie Begley, Meagan Clickner, Makayla B. Cormier, Erin H. Donovan, Paige Dostie, Luke A. Gagnon, Micaela Griffin, Dana Johnson, Kunsang C. Lama, Kyle A. Macleod, Shannon A. Miller, Megan Moschetti, Amanda Munoz, Jennifer O'Connell, Erin O'Neill, Emily A. Riley, Alejandro C. Rojas, Ryan T. Senecal, Delaney A. Smith, Nicholas J. Sousa, Karolyne N. Stimpson, Sabrina Vieira, Mckenzie R. Wood
Salve Regina Arboretum Ten Year Plan To Reach Level Iii Accreditation, Jameson Chace, Helen Papp, Allyson Gilbert, Madeline Lark, Kyle Mcguire, Krysta Tsangarides, Madisen Archibald, Meghan Beals, Mackenzie Begley, Meagan Clickner, Makayla B. Cormier, Erin H. Donovan, Paige Dostie, Luke A. Gagnon, Micaela Griffin, Dana Johnson, Kunsang C. Lama, Kyle A. Macleod, Shannon A. Miller, Megan Moschetti, Amanda Munoz, Jennifer O'Connell, Erin O'Neill, Emily A. Riley, Alejandro C. Rojas, Ryan T. Senecal, Delaney A. Smith, Nicholas J. Sousa, Karolyne N. Stimpson, Sabrina Vieira, Mckenzie R. Wood
BIO 255 Arboretum Project
The Salve Regina University Arboretum, located in Newport, Rhode Island is currently registered as a Level II arboretum and is intertwined with the city of Newport Arboretum. The university now has intentions to reach Level III status, as part of a ten-year plan. This plan was developed by the students of the Spring 2018 BIO 255: Conservation Biology course, instructed by Dr. Jameson Chace, Associate Professor of biology at Salve Regina University. As part of a curriculum geared towards civic engagement, the class focused on creating and optimizing strategies that can be applied to the ten-year plan. These strategies were …
Infrared Heater System For Warming Tropical Forest Understory Plants And Soils, Bruce Kimball, Auro M. Alonso-Rodriguez, Molly A. Cavaleri, Sasha Reed, Grizelle Gonzalez, Tana E. Wood
Infrared Heater System For Warming Tropical Forest Understory Plants And Soils, Bruce Kimball, Auro M. Alonso-Rodriguez, Molly A. Cavaleri, Sasha Reed, Grizelle Gonzalez, Tana E. Wood
Michigan Tech Publications
The response of tropical forests to global warming is one of the largest uncertainties in predicting the future carbon balance of Earth. To determine the likely effects of elevated temperatures on tropical forest understory plants and soils, as well as other ecosystems, an infrared (IR) heater system was developed to provide in situ warming for the Tropical Responses to Altered Climate Experiment (TRACE) in the Luquillo Experimental Forest in Puerto Rico. Three replicate heated 4‐m‐diameter plots were warmed to maintain a 4°C increase in understory vegetation compared to three unheated control plots, as sensed by IR thermometers. The equipment was …
Toward An Improved Conceptual Understanding Of North American Tree Species Distributions, Paige E. Copenhaver-Parry
Toward An Improved Conceptual Understanding Of North American Tree Species Distributions, Paige E. Copenhaver-Parry
Faculty Publications - Department of Biological & Molecular Science
Species distributions have often been assumed to represent climatic limitations, yet recent evidence has challenged these assumptions and emphasized the potential importance of biotic interactions, dispersal limitation, and disturbance. Despite significant investigation into these factors, an integrated understanding of where and when they may be important is lacking. Here, we review evidence for the factors underlying the historical and contemporary distributions of North American tree species and argue that a cohesive conceptual framework must be informed by an understanding of species ecological and evolutionary history. We further demonstrate that available evidence offers little indication of a significant, independent influence of …
Nonnative Forest Insects And Pathogens In The United States: Impacts And Policy Options, Gary M. Lovett, Marissa Weiss, Andrew M. Liebhold, Thomas P. Holmes, Brian Leung, Kathy F. Lambert, David A. Orwig, Faith T. Campbell, Jonathan Rosenthal, Deborah G. Mccullough, Radka Wildova, Matthew P. Ayres
Nonnative Forest Insects And Pathogens In The United States: Impacts And Policy Options, Gary M. Lovett, Marissa Weiss, Andrew M. Liebhold, Thomas P. Holmes, Brian Leung, Kathy F. Lambert, David A. Orwig, Faith T. Campbell, Jonathan Rosenthal, Deborah G. Mccullough, Radka Wildova, Matthew P. Ayres
Dartmouth Scholarship
We review and synthesize information on invasions of nonnative forest insects and diseases in the United States, including their ecological and economic impacts, pathways of arrival, distribution within the United States, and policy options for reducing future invasions. Nonnative insects have accumulated in United States forests at a rate of ~2.5 per yr over the last 150 yr. Currently the two major pathways of introduction are importation of live plants and wood packing material such as pallets and crates. Introduced insects and diseases occur in forests and cities throughout the United States, and the problem is particularly severe in the …
Application Of Infrared And Raman Spectroscopy For The Identification Of Disease Resistant Trees, Anna O. Conrad, Pierluigi Bonello
Application Of Infrared And Raman Spectroscopy For The Identification Of Disease Resistant Trees, Anna O. Conrad, Pierluigi Bonello
Forest Health Research and Education Center Faculty Publications
New approaches for identifying disease resistant trees are needed as the incidence of diseases caused by non-native and invasive pathogens increases. These approaches must be rapid, reliable, cost-effective, and should have the potential to be adapted for high-throughput screening or phenotyping. Within the context of trees and tree diseases, we summarize vibrational spectroscopic and chemometric methods that have been used to distinguish between groups of trees which vary in disease susceptibility or other important characteristics based on chemical fingerprint data. We also provide specific examples from the literature of where these approaches have been used successfully. Finally, we discuss future …
Ecosystem Services Of Urban Trees And The Impacts Of Urbanization, Jorge E. Cantu
Ecosystem Services Of Urban Trees And The Impacts Of Urbanization, Jorge E. Cantu
Theses and Dissertations - UTB/UTPA
The University of Texas- Pan American has conducted a complete survey of campus trees in partial fulfillment of the requirements for membership in the International Society of Arboriculture Designation of Tree Campus USA. This tree inventory was accomplished with the help of students whom were trained by faculty and foresters. Other than the completion of the tree inventory, this thesis had two main goals; 1) valuate the ecosystem services provided by campus trees 2) create a unique service learning project that other institutions can model. According to our calculations, the trees on campus have sequestered 568,652 kg of CO2, avoided …
St. Norbert College As Arboretum: Mapping The Trees On Campus, Jordan A. Mayer, Jason Mills, David Hunnicut
St. Norbert College As Arboretum: Mapping The Trees On Campus, Jordan A. Mayer, Jason Mills, David Hunnicut
GIS Library
St. Norbert College as Arboretum: Mapping the Trees on Campus - Take a virtual tour of the trees on campus.
The tour is a multimedia ArcGIS Online story map and is available here.
Many of the trees on the St. Norbert Campus were planted by Fr. Anselm Keefe (1895- 1974) in the mid 20th century. It was Fr. Keefe’s vision to beautify the campus by creating gardens that were accessible to the public. This included planting a diverse variety of trees, including one of every tree species native to Wisconsin. It was Keefe’s mission to make St. Norbert College …
Temporal Fluctuation Scaling In Populations And Communities, Michael Kalyuzhny, Yishai Schreiber, Rachel Chocron, Curtis H. Flather, Ronen Kadmon, David A. Kessler, Nadav M. Shnerb
Temporal Fluctuation Scaling In Populations And Communities, Michael Kalyuzhny, Yishai Schreiber, Rachel Chocron, Curtis H. Flather, Ronen Kadmon, David A. Kessler, Nadav M. Shnerb
USDA Forest Service / UNL 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 …
Effects Of Understory Vegetation And Litter On Plant Nitrogen (N), Phosphorus (P), N∶P Ratio And Their Relationships With Growth Rate Of Indigenous Seedlings In Subtropical Plantations, Jun Wang, Dafeng Hui, Hai Ren, Zhanfeng Liu, Long Yang
Effects Of Understory Vegetation And Litter On Plant Nitrogen (N), Phosphorus (P), N∶P Ratio And Their Relationships With Growth Rate Of Indigenous Seedlings In Subtropical Plantations, Jun Wang, Dafeng Hui, Hai Ren, Zhanfeng Liu, Long Yang
Biology Faculty Research
Establishing seedlings in subtropical plantations is very important for forest health, succession and management. Information on seedling nutrient concentrations is essential for both the selection of suitable indigenous tree species to accelerate succession of the established plantation and sustainable forest management. In this study, we investigated the concentrations of nitrogen ([N]), phosphorus ([P]), and N∶P ratio in leaves, stems and roots of seedlings of three indigenous tree species (Castanopsis chinensis, Michelia chapensis and Psychotria rubra) transplanted with removing or retaining understory vegetation and litter at two typical subtropical forest plantations (Eucalyptus plantation and native species plantation). We also measured the …
Low Mortality In Tall Tropical Trees, R. Q. Thomas, J. R. Kellner, D. B. Clark, D. R. Peart
Low Mortality In Tall Tropical Trees, R. Q. Thomas, J. R. Kellner, D. B. Clark, D. R. Peart
Dartmouth Scholarship
The dynamics of the tallest trees in tropical forests are of special interest due to their carbon content, canopy dominance, and the large canopy gaps created when they die. Known ecological mechanisms that may influence tall tree survival lead to conflicting predictions. Hydraulic stress and exposure to high winds and desiccation should increase death rates, yet the tallest trees have the greatest access to light and escape damage caused by falling boles and branches. The uncertainty in tall tree mortality rates has been difficult to address due to their low density, which makes mortality rates challenging to estimate accurately. Here, …
Evaluating Tree Height Using Pictometry® Hyperspatial Imagery, Daniel Unger, David Kulhavy, Matthew A. Wade
Evaluating Tree Height Using Pictometry® Hyperspatial Imagery, Daniel Unger, David Kulhavy, Matthew A. Wade
Faculty Publications
This study evaluated the use of Pictometry® hyperspatial 4-inch (10.2 centimeters) multispectral imagery to estimate height of baldcypress trees on the campus of Stephen F. Austin State University (SFASU), Nacogdoches, Texas. Actual tree heights of 60 baldcypress trees measured with a telescopic height pole were compared to Pictometry® estimated tree height. Linear correlation coefficients (r) and coefficient of determinations (R2) between actual tree height and Pictometry® estimated tree height for all 60 tress, and the shortest 30 and tallest 30 trees, were calculated. A paired t-test (alpha = 0.05) was calculated for all 60 tress, and the shortest 30 and …
Five Year Carbon Storage Analysis In The Gordon Natural Area, Joy Fritschle, Chad Hudson, Catherine Spahr, Andy Tamez
Five Year Carbon Storage Analysis In The Gordon Natural Area, Joy Fritschle, Chad Hudson, Catherine Spahr, Andy Tamez
Forest Carbon Storage Study Documents
The Gordon Natural Area (GNA) serves as a natural laboratory for a range of class research projects. In a Geography Field Methods course led by Dr. Fritschle, students established five permanent carbon-study plots in 2008. Since then, students have returned to these plots to measure the carbon stock of standing trees in five plots located along a topographic gradient: floodplain, ridge-top, lower mid-slope, mid-slope and upper mid-slope. Using U.S. Forest Service established guidelines, all trees greater than 5 cm and up to 73 cm in diameter at breast height (DBH) were measured and identified within each 40 m circular plot. …
Sp748 Estimating Weight Of Logs And Standing Timber: A Guide For Foresters, The Forest Industry And Landowners, David Mercker, Adam Taylor
Sp748 Estimating Weight Of Logs And Standing Timber: A Guide For Foresters, The Forest Industry And Landowners, David Mercker, Adam Taylor
Forestry, Trees, and Timber
No abstract provided.
Res Rep 12-04 Standard Bioassessment Procedures For Evaluating Ecological Restoration In Southeastern Hardwood Bottomlands, Mattew J. Gray, Elizabeth A. Summers
Res Rep 12-04 Standard Bioassessment Procedures For Evaluating Ecological Restoration In Southeastern Hardwood Bottomlands, Mattew J. Gray, Elizabeth A. Summers
Forestry, Trees, and Timber
No abstract provided.
Seeing The Forest For The Trees: Managing Social Conflict And Forest Restoration, Steven E. Daniels, Jens Emborg, Greg B. Walker
Seeing The Forest For The Trees: Managing Social Conflict And Forest Restoration, Steven E. Daniels, Jens Emborg, Greg B. Walker
Sociology, Social Work and Anthropology Faculty Publications
This paper examines the role that social conflict is likely to play in forest restoration projects. A definition of conflict as “perceived goal interference among interdependent parties” serves as a point of departure for the discussion, and the nature of forest restoration conflict is systematically examined by focusing on each aspect of the definition: perceptions, goal interference, the parties, and their interdependence. Agencies undertaking restoration projects are encouraged to adopt a discourse orientation, wherein they recognize that 1) their public involvement efforts are creating a discourse that can incorporate a wide array of values and voices and 2) groups may …
Sp570 Drought-Tolerant Trees, The University Of Tennessee Agricultural Extension Service
Sp570 Drought-Tolerant Trees, The University Of Tennessee Agricultural Extension Service
Forestry, Trees, and Timber
Late-season droughts are common in southeastern landscapes. Many trees are stressed by prolonged periods of hot, dry weather. Selecting trees that use water efficiently without the need for frequent watering or irrigation is one way to make your landscape more resistant to droughts. With impending water shortages in many urban areas leading to prohibitions of irrigation or watering, planting trees that are more tolerant to drought conditions is the best long-term solution to a healthier, low-maintenance landscape.
A Potential Plan Of Action For Emerald Ash Borer In Nebraska, Lee Wheeler
A Potential Plan Of Action For Emerald Ash Borer In Nebraska, Lee Wheeler
Department of Environmental Studies: Undergraduate Student Theses
Abstract Emerald Ash Borer (Agrilus planipennis) (EAB) is an invasive insect pest. It feeds on the cambium tissues of ash tree species. It was first discovered in the United States in 2002 in Detroit, Michigan. Their effects on ash trees are deadly, and it is quickly spreading across the Midwest. Nebraska has not yet been invaded, but confirmed findings continue getting closer and closer. The major problem facing Nebraskans, with regards to EAB, is how to begin preparations to prevent a dramatic economic loss when an infestation does occur. So, to address this problem, I have conducted street and park …
Comparison Of Carbon Stocks & Importance Values In Correlation With Past Land Use In The Gordon Natural Area, Timothy Hoffer, Steffen Lubbe
Comparison Of Carbon Stocks & Importance Values In Correlation With Past Land Use In The Gordon Natural Area, Timothy Hoffer, Steffen Lubbe
Forest Carbon Storage Study Documents
No abstract provided.
The Effects Of Fire And Deer Herbivory On Oak Regeneration In An Eastern Deciduous Forest, Julie La Spina
The Effects Of Fire And Deer Herbivory On Oak Regeneration In An Eastern Deciduous Forest, Julie La Spina
Honors Theses
In the past, oak was one of the most dominant species groups in the deciduous forests of the northeastern United States. More recently, a variety of factors, including interspecific competition, fire suppression and deer herbivory, have led to the decline of oaks. We studied how oaks regenerate and grow following a major disturbance, and how their growth interacts with deer herbivory. We measured the growth of seedlings of three tree species following the 1,200 hectare Overlook Fire that occurred in Minnewaska State Park, NY in April 2008. At each of three sites, we measured the growth of twenty Quercus prinus, …
Changes In Producer Attitudes Towards Windbreaks In Eastern Nebraska, 1983 To 2009, Kim Tomczak
Changes In Producer Attitudes Towards Windbreaks In Eastern Nebraska, 1983 To 2009, Kim Tomczak
Department of Environmental Studies: Undergraduate Student Theses
Abstract Windbreaks are rows of trees or shrubs arranged on the landscape to reduce wind speed. In agricultural landscapes we find them as farmstead windbreaks, livestock windbreaks and field windbreaks. While farmstead and livestock windbreaks are well accepted by the agricultural community, field windbreaks are often viewed differently. A 1982 study of the attitudes of farmers in Eastern Nebraska indicated that many of the producers were around the age of 50 and that they used different types of windbreaks. This study repeated that survey in the same. When compared to data from 1982, farmers today are not educated about the …
Evaluating Hazelnut Cultivars For Yield, Quality And Disease Resistance, Sam Tobin
Evaluating Hazelnut Cultivars For Yield, Quality And Disease Resistance, Sam Tobin
Department of Environmental Studies: Undergraduate Student Theses
ABSTRACT This long term study focuses on testing various hazelnut cultivars for yield, nut quality and disease resistance. There are various cultivars that are being tested for these desired traits but only the Grand Traverse and Skinner will be applicable for the results of this localized study. The desired traits of commercial nut production are best matched by these two cultivars. Results from previous harvests will be used to draw trends to recommend commercially functional cultivars in Eastern Nebraska.
Forest Health Monitoring (Trees) In The Gordon Natural Area, Gerard Hertel
Forest Health Monitoring (Trees) In The Gordon Natural Area, Gerard Hertel
Forest Health Monitoring Study Documents
No abstract provided.