Forest Sciences Commons^™

A Preliminary “Then And Now” Look At 70+ Years Of Historic Landscape Photos From Roan Mountain, Nc-Tn, James T. Donaldson, Charles F. Warden, Jennifer Bauer

Faculty Open Access Works

PowerPoint originally presented at the 18th Annual SAMAB Conference, Carnegie Hotel, Johnson City, TN (October 22-24, 2007).

Updated in 2015, 2023, 2026 (reformatted and clarified).

Emaldi Ms And Oligonucleotide Analysis, Manoj Perera, Yipeng Yin, Reed Arneson, Fakhira Razzaq, Rishabh Awasthi, William Wittstock, Yinan Yuan, Shiyue Fang

Michigan Tech Publications

Enhanced matrix assisted laser desorption ionization mass spectrometry (eMALDI MS) refers to MALDI MS in which the efficacy of desorption and ionization is enhanced by heat, volatile species, or both, generated from chemical decomposition of additives in the sample of analyte under MALDI conditions. MALDI MS has been widely used for oligonucleotide (ON) analysis. However, two challenges, limited ability to analyze long ONs and low tolerance to trace salts, significantly restrict its applications. We recently proposed the ion pair thermal model for the gas phase ion formation mechanism of MALDI MS. This model predicts an exponential increase in ion yield …

Clethra Alnifolia: A Fact Sheet For Seed Transfer Considerations, Taylor Houggy

Plant Science Articles

Clethra alnifolia is a highly prized fragrant deciduous shrub, often found in many home gardens across Eastern North America. Despite its popularity in the landscape industry, there is little research comparing C. alnifolia's natural habits in the wild to its habits as a landscaped cultivar. Information such as flowering phenology, genetic diversity, and growth habits have the potential to change considerably depending on C. alnifolia's location. Because of this, it is important that landscape growers as well as forest conservationists have access to ecological fact sheets in order to make informed decisions when transferring seed to different areas. In this …

Great Graminoids! Quantifying Vegetation On Roan’S Western Balds Over The Last 80 Years (1936, 1956, 2016), James T. Donaldson

Faculty Open Access Works

PowerPoint originally presented at Friends of Roan Mountain Winter Naturalists' Rally 11 Feb. 2017.

Grant funding from Friends of Roan Mountain for resampling historic transects from Carvers Gap to Grassy Ridge. Revised 2021, 2022, & 2023 (technical features and diversity); edited for clarity 2026 (for written rather than oral presentation & added references slide).

Linking Urban Forest Ecosystem Services With The Sustainable Development Goals: A Bibliometric And Thematic Synthesis (2008–2022), Whisnu Febry Afrianto, Muhammad Ilham

Jurnal Penelitian Kehutanan Wallacea

Despite growing recognition of urban forests as vital providers of ecosystem services (ES) that support the Sustainable Development Goals (SDGs), existing scientific literature remains fragmented and lacks a comprehensive synthesis. This study addresses that gap through a systematic bibliometric analysis of global research on urban forestry ecosystem services published between 2008 and 2022, encompassing 229 articles. The analysis examined the three main classifications of ecosystem services and all 17 SDGs. Publications on urban forestry ecosystem services have shown a steady increase since 2008, peaking between 2018 and 2022, while citation counts reached their highest point in 2012 and gradually declined …

Species Distribution Modeling Of Parasitic Corpse Flower Rafflesia Arnoldii Var. Arnoldii R. Br Related To Host’S Fractional Photosynthetically Active Radiation In Tanggamus, Sumatra, Indonesia, Andriwibowo Andriwibowo, Suyud Utomo

Jurnal Penelitian Kehutanan Wallacea

Corpse flower, or scientifically known as Rafflesia arnoldii var. arnoldii R.Br, is one of the species that is endemic to Sumatra, Kalimantan and Java Island. As a parasitic plant, this species depends on its tree host species. While the host species depends on environmental variables include Fractional Photosynthetically Active Radiation (FAPAR), forest covers, and elevation for its growth. Then those variables were important to develop the Species Distribution Modelling (SDM) of R. arnoldii using the MaxEnt technique. One of the important regions for R. arnoldii in Sumatra is Tanggamus in Lampung, and currently, information about suitable habitats for R. arnoldii …

The Status Of The Endangered Rafflesia And Conservation Efforts In Java Island, Indonesia, Bahana Aditya Adnan, Purnomo Purnomo, Suwarno Hadisusanto

Jurnal Penelitian Kehutanan Wallacea

Rafflesia species (Rafflesiaceae) is a small endo-holoparasitic South-East Asian plant genus known for its exceptionally large flowers, rare species, and high island endemism. Three species of Rafflesia, i.e. R. patma, R. rochussenii, and R. zollingeriana, are known from Java, Indonesia. All three species are threatened with extinction due to human activities that cause habitat loss and fragmentation. Our literature review revealed that currently, factors influencing the existence of this genus, including its life cycle and environmental factors that support its life, are still not well understood. In particular, studies of the distribution and population of Rafflesia on the …

Influence Of Pruning And Organic Fertiliser On 9-Month-Old Ginger Productivity In An Acacia Auriculiformis Agroforestry, Yuda Vatra Erlangga, Arom Figyantika, Cintya Nurul Apsari, Rizki Bagus Indratmoko, Muhammad Syahru Ramadhan, Anastasya Clara Srinila Tampubolon, Fanny Elisabeth Panjaitan

Jurnal Penelitian Kehutanan Wallacea

Acacia auriculiformis (formis) offers various advantages that can be integrated with agricultural crops like ginger (Zingiber officinale var. amarum) through agroforestry systems. Pruning and fertilisation are potential strategies to optimise this approach. However, existing research remains limited. Further quantification and analysis are required to elucidate the effects of pruning on the growth of 7-year-old formis trees 11 months after treatment. In addition, more comprehensive studies are needed to examine the combined effects of pruning and organic fertiliser on the growth, productivity, and gingerol content of 9-month-old ginger plants. This research employed a Split-Plot Randomised Complete Block Design, examining the …

Species Diversity And Estimation Of Aboveground Carbon Stocks In Sugar Palm Forest And Lowland Forest In Negeri Hatusua, Maluku, Irwanto Irwanto, Andjela Sahupala, Febian Tetelay, Yulianus Komul

Jurnal Penelitian Kehutanan Wallacea

Tropical forests are essential for climate change mitigation, but limited data on species diversity and aboveground carbon stocks in Indonesia constrain evidence-based forest management. This study aims to assess species diversity and aboveground carbon stocks in sugar palm forests and lowland forests in Negeri Hatusua, Maluku Province, Indonesia. Vegetation analysis was employed to determine species structure and diversity, while carbon stock measurement and calculation followed the Indonesian National Standard (SNI 7724:2019) for land-based carbon assessment, with certain modifications. The results indicated that the species diversity index in the sugar palm forest was 2.21 for trees, 1.95 for poles, 2.26 for …

Sustainability Of Peatland Area Management With Peat Drainability Assessment At Various Depths, Aulia Bahadhori Mukti, Heru Bagus Pulunggono, Yuli Suharnoto

Jurnal Penelitian Kehutanan Wallacea

This study aims to analyze the distribution of drainability assessment components, including Peat Basal Contact (PBC) and Natural Drainage Limit (NDL) elevations, Drainage Limit Time (DLT), and volume loss, as well as their relationship with peat thickness, subsidence, and groundwater level (GWL) in peatlands. The assessment is conducted to estimate the potential productive lifespan of oil palm plantations by determining the natural drainage limit (NDL) and predicting the time required to reach the drainage threshold, considering subsidence rates across different peat thickness classes. The analysis and calculations were performed using the drainage assessment formulas and procedures outlined by the Roundtable …

Site Characterization And Integrated Irrigation-Forestry Solutions For Mangrove Restoration In The Red River Delta Biosphere Reserve, Vietnam, Manh Quy Do, Huy Quoc Nguyen, Minh Duc Nguyen, My Tra Ha, Tuan Anh Le, Luan Thanh Nguyen, Tu Ngoc Pham

Jurnal Penelitian Kehutanan Wallacea

The research was conducted in 2023 in a degraded mangrove forest area in Giao Hoa commune, Ninh Binh province, Vietnam. This area is part of the Red River Delta Biosphere Reserve (RRDBR), which was recognised by UNESCO in 2004. The study employed methods such as surveying topographical features, assessing soil and water characteristics, and evaluating the status of the mangrove forest. It also used GIS and The Analytic Hierarchy Process method to analyse and evaluate the current condition of the forest and its site characteristics. The research results show that, regarding the topographical features of the degraded mangrove area, it …

Urban Bird Community Interaction With Ficus And Non-Ficus Tree, Eka Alifikri, Yeni Aryati Mulyani, Ani Mardiastuti

Jurnal Penelitian Kehutanan Wallacea

Ficus trees are recognised as keystone species in forest ecosystems and are crucial for urban wildlife, especially birds. IPB Darmaga Campus, a biodiversity-rich urban area, hosts a variety of plant species, including Ficus and non-Ficus tree species, along with diverse bird species. This study aimed to compare the utilisation of Ficus and non-Ficus plants by birds in the area. Observations were conducted on 5 Ficus benjamina, 5 Ficus microcarpa, and 10 non-Ficus tree individuals. Ficus trees were used by 15 bird species from 12 families, with 1700 recorded interactions. In contrast, non-Ficus trees were …

Forest Overstory Mortality & Recruitment Patterns Eight Years Following Wildfire In The Southern Appalachians, Ruth Cumberland

All Theses

In this study, we investigated patterns of forest overstory mortality and recruitment eight years after wildfire in a large wildfire site the Southern Appalachians, a topic that has not been thoroughly investigated to date. With evidence that pre-fire drought promotes post-fire mortality through impaired physiological function and increased fuel consumption, unknown patterns following wildfire are important to study under shifting climate and land-use conditions. In Chapter 1, three areas of interest were investigated: (a) functional group mortality response to wildfire effects, (b) temporal differences in early (1-3 years) and late (5-8 years) periods of delayed forest overstory mortality patterns following …

From Time-Series Generation And Model Selection To Transfer Learning: A Review And Comparative Analysis Of Pixel-Wise Approaches For Large-Scale Crop Mapping, Judy Long, Tao Liu, Sean Alexander Woznicki, Miljana Marković, Oskar Marko, Molly Sears

Michigan Tech Publications

Accurate and timely large-scale crop mapping is essential for crop management and food security. Over the past decade, a wide range of pixel-wise crop classification approaches have emerged for workflow elements including image preprocessing, sampling methods, feature selection, model architectures, and transfer learning strategies. To guide users in constructing robust workflows, we reviewed methods for supervised and transfer-learning-based workflow elements and propose selecting a crop-mapping workflow based on target-site sample size and domain shift from a sample-abundant source site. To comprehensively evaluate the reviewed approaches, we systematically analyzed how different time-series construction strategies, training sample sizes, variable sets, model architectures, …

Dendroclimatic Response Of The Wet Miombo Woodland Species: A Case Study Of Mufulira District, Copperbelt Province, Zambia, Collins Chibuye Malubeni

All-Inclusive List of Electronic Theses and Dissertations

Zambia is a tropical, landlocked country that lies in the South-Central part of Africa. The climate in Zambia includes distinct dry and rainy seasons, mainly influenced by the north-south movement of the Intertropical Convergence Zone (ITCZ), which shifts seasonally. This research is focused on understanding the relationship between tree growth and climate using dendrochronology. Forty-nine tropical species, including Julbernardia paniculata, Brachystegia longifolia, and Pericopsis angolensis, were analysed for dendroclimatic potential, and 70% showed clear ring formation, indicating that trees in this locality produce distinct annual ring boundaries. For the single species chronology, thirteen cores from eight trees that were initially …

Micro-Solar Kiln Design: A Cost-Effective Approach For Small Landowners To Produce Higher Quality Lumber, Bart Swecker

All Theses

Small-scale and hobby sawmill operators increasingly seek low-cost methods for drying lumber to moisture contents suitable for interior use, yet conventional kiln systems are often impractical due to capital cost, power requirements, and operational complexity. While air drying remains common at small scales, many operators require a controlled finishing step to improve dimensional stability and product value. Solar kilns offer an intermediate solution between air drying and conventional kilns; however, most published designs and performance data focus on systems with capacities far larger than those typically used by small-scale operators. Consequently, limited guidance exists for micro-scale solar kilns, particularly under …

Biology, Ecology And Control Of Eye Gnats In An Open Pine Ecosystem, Leela Hospach

All Theses

Eye gnats of the genus Liohippelates are bothersome flies of the family Chloropidae. They breed in moist, disturbed, sandy soils that contain organic matter, and have been implicated as vectors of conjunctivitis, bovine mastitis, and yaws. We conducted research into some basic biological and ecological characteristics. Using wild-caught gnats in a temperature-controlled incubator, we found that their activity peaks between 27°C and 41°C. Trapping at different heights above the forest floor in an open-pine savannah, we captured most gnats at 7.5 m off the ground. This may have to do with the attractiveness of the rotten egg lures we used, …

Diffuse Radiation Controls On Southern Pine Forest Ecosystem Functioning, Jeremy Forsythe

All Dissertations

Diffuse solar radiation, sunlight scattered by atmospheric aerosols and/or clouds, enhances plant photosynthesis through the diffuse fertilization effect (DFE), increasing ecosystem gross primary productivity (GPP) per unit of incoming radiation. Despite this known effect, pine forests of the southeastern United States remain comparatively understudied in the diffuse light literature. This is a critical knowledge gap, as the southeastern United States sequesters more carbon than any other region of the conterminous country (approximately 176 ± 26 Tg C yr⁻¹, or roughly 56% of national forest net carbon exchange), and the region experiences some of the highest biogenic aerosol loads in North …

Integrating Incentive Design And Spatial Prioritization For Climate-Smart Forestry Adoption In South Carolina, United States, Miah Maye Pormon

All Dissertations

Forests provide essential ecosystem services, including carbon sequestration, water regulation, timber production, and habitat provision. However, increasing development pressures and land-use changes threaten forest persistence and long-run ecosystem service provision. Climate-smart forestry (CSF) practices, such as improved forest management and extended rotation, offer opportunities to enhance carbon storage, forest resilience, and economic livelihoods. The effectiveness of these practices depends on forest owners’ participation and the strategic allocation of financial resources or incentives. This dissertation develops an integrated framework that combines behavioral economic analysis and mapping to improve the design of current incentive programs. The first chapter employs the Contingent Valuation …

Replacing Exams With Project-Based Assignments, Patrick Hiesl

Land-Grant Press — Teaching Section

This brief provides an example of project-based learning that was applied to the FOR 3410 – Wood Procurement Practices in the Forest Industry undergraduate course. After teaching this course for 4 years, it was determined that project-based learning aligned well with the learning outcomes and activities the students would encounter in their professional careers, resulting in better student engagement in the course and higher retention of the concepts.