Life Sciences Commons^™

Fungal Planet Description Sheets: 1112–1181, P. W. Crous, D. A. Cowan, G. Maggs-Kölling, N. Yilmaz, E. Larsson, C. Angelini, T. E. Brandrud, J. D. W. Dearnaley, B. Dima, F. Dovana, Et Al.

Aspen Bibliography

Novel species of fungi described in this study include those from various countries as follows: Australia, Austroboletus asper on soil, Cylindromonium alloxyli on leaves of Alloxylon pinnatum, Davidhawksworthia quintiniae on leaves of Quintinia sieberi, Exophiala prostantherae on leaves of Prostanthera sp., Lactifluus lactiglaucus on soil, Linteromyces quintiniae (incl. Linteromyces gen. nov.) on leaves of Quintinia sieberi, Lophotrichus medusoides from stem tissue of Citrus garrawayi, Mycena pulchra on soil, Neocalonectria tristaniopsidis (incl. Neocalonectria gen. nov.) and Xyladictyochaeta tristaniopsidis on leaves of Tristaniopsis collina, Parasarocladium tasmanniae on leaves of Tasmannia insipida, Phytophthora aquae-cooljarloo from pond water, Serendipita whamiae as …

Inaction On Lead Despite The Relevant Knowledge: Predictors, Covariates, And Outreach Implications, Alessandra Rossi, Bernabas Wolde, Pankaj Lal, Melissa Harclerode

Department of Biology Faculty Scholarship and Creative Works

Testing residential soil and paint for lead provides actionable information. By showing where and how much lead exists on the residence, it allows one to quantify risk and determine the best ways to reduce exposure along with the corresponding health and financial costs. For these reasons, several federal and state programs offer outreach to audiences on the benefits of testing residential soil and paint for lead. Not all individuals who know about lead’s adverse health effects, however, test their residence for lead, potentially limiting the actionable information that could have helped to reduce their exposure. Such individuals represent a challenge …

Taxonomic Review Of South American Butter Frogs: Phylogeny, Geographic Patterns, And Species Delimitation In The Leptodactylus Latrans Species Group (Anura: Leptodactylidae), Felipe De M. Magalhães, Mariana L. Lyra, Thiago R. De Carvalho, Diego Baldo, Francisco Brusquetti, Pamela Burella, Guarino R. Colli, Marcelo C. Gehara, Rafael O. De Sá, Et Al.

Biology Faculty Publications

The Leptodactylus latrans species group currently comprises eight medium- to large-sized frog species with a convoluted taxonomic history, particularly related to the specific limits of the L. latrans complex, and the species pair Leptodactylus chaquensis–Leptodactylus macrosternum. Their homogeneous external morphology and continental geographic distribution in South America have posed severe limitations to a comprehensive review, such that taxonomic consensus and species limits remain uncertain. This is further worsened by the presence of chromatic polymorphism among coexisting species that can hardly be distinguished by external morphology. Based on a large-scale geographic sampling including multilocus DNA analyses, and acoustic …

Nebraska Forest Action Plan - 2020, John Erixson

Nebraska Forest Service: Publications

Nebraska’s Forest Action Plan – 2020 represents a multiyear effort by Nebraska Forest Service staff to ensure trees continue to play a role in the lives of all Nebraskans. It includes assessments in locations considered to be priority forested areas; the strategies that will be implemented to address the challenges described in the preceding paragraph; and, how the agency’s resources will coalesce to bring the state’s trees and forests to a healthy and sustainable condition. Additionally, this plan maintains flexibility that allows for response to changes in the natural environment, state or federal policy, and the priorities of constituents and …

Aspen Soils Retain More Dissolved Organic Carbon Than Conifer Soils In A Sorption Experiment, Antra Boča, Astrid R. Jacobson, Helga Van Miegroet

Aspen Bibliography

The effect tree species have on soil organic carbon (SOC) has been hotly debated but, so far, few clear patterns have emerged. One example of a differing tree species effect on SOC are aspen forests in North America, which have been found to have more stable SOC than adjacent conifer forest stands. An important source for the formation of stable organo-mineral complexes in soil is dissolved organic carbon (DOC). DOC concentrations in mineral soil are often higher under the thick O-horizons of conifer forests than under aspen forests, but this does not correspond to more stable mineral SOC. This suggests …

High-Purity Recycling Of Hematite And Zn/Cu Mixture From Waste Smelting Slag, Yang Huo, Xiang Song, Suiyi Zhu, Yu Chen, Xue Lin, Yaqiong Wu, Zhan Qu, Ting Su, Xinfeng Xie

Michigan Tech Publications

In this study, Zn/Cu-bearing smelting slag was recycled via an integrated acid dissolution and hematite precipitation method. The slag was dissolved in nitric acid to generate an acid solution containing 23.5 g/L Fe, 4.45 g/L Zn and 2.81 g/L Cu, which was subjected to hydrothermal treatment with the addition of levulinic acid (LA). More than 99.95% of the initial Fe content was removed as hematite particles with diameters of approximately 200 nm, and the residual Fe concentration in the acid was 0.43 mg/L. The generated hematite contained 97.3% Fe2O3, 0.64% ZnO and 0.58% CuO. Greater than 99% of the initial …

High-Quality De Novo Assembly Of The Eucommia Ulmoides Haploid Genome Provides New Insights Into Evolution And Rubber Biosynthesis, Yun Li, Hairong Wei, Jun Yang, Kang Du, Jiang Li, Ying Zhang, Tong Qiu, Zhao Liu, Yongyu Ren, Lianjun Song, Xiangyang Kang

Michigan Tech Publications

We report the acquisition of a high-quality haploid chromosome-scale genome assembly for the first time in a tree species, Eucommia ulmoides, which is known for its rubber biosynthesis and medicinal applications. The assembly was obtained by applying PacBio and Hi–C technologies to a haploid that we specifically generated. Compared to the initial genome release, this one has significantly improved assembly quality. The scaffold N50 (53.15 MB) increased 28-fold, and the repetitive sequence content (520 Mb) increased by 158.24 Mb, whereas the number of gaps decreased from 104,772 to 128. A total of 92.87% of the 26,001 predicted protein-coding genes identified …

Projected Impact Of Mid-21st Century Climate Change On Wildfire Hazard In A Major Urban Watershed Outside Portland, Oregon Usa, Andy Mcevoy, Max Nielsen-Pincus, Andres Holz, Arielle J. Catalano, Kelly E. Gleason

Environmental Science and Management Faculty Publications and Presentations

Characterizing wildfire regimes where wildfires are uncommon is challenged by a lack of empirical information. Moreover, climate change is projected to lead to increasingly frequent wildfires and additional annual area burned in forests historically characterized by long fire return intervals. Western Oregon and Washington, USA (westside) have experienced few large wildfires (fires greater than 100 hectares) the past century and are characterized to infrequent large fires with return intervals greater than 500 years. We evaluated impacts of climate change on wildfire hazard in a major urban watershed outside Portland, OR, USA. We simulated wildfire occurrence and fire regime characteristics under …

Conceptual Design, Engineering & Pricing Of A Clt Addition To Umaine’S Composites Center To House The Gem Factory Of The Future, Advanced Structures & Composites Center, University Of Maine, Russell Edgar, Benjamin Herzog

General University of Maine Publications

In October 2019, the Advanced Structures & Composites Center (ASCC) at the University of Maine (UMaine) was awarded one of ten University Mass Timber Grants, meant to support demonstration projects showcasing mass timber technologies on university campuses. Two of the ten awards were given to Maine colleges and universities, the one described herein focused on a CLT addition to the ASCC to (1) demonstrate to regional stakeholders the viability of CLT as a structural building material, (2) demonstrate cost-effective use of CLT in large, warehouse-style buildings, (3) show Maine’s support for mass timber technologies to further encourage investment in CLT …

Botantic Garden News, Georgia Southern University

Botanic Garden Online News (2020-2021)

• Fall Hours-Close at 5:30 PM

Economic Contribution Of Agriculture And Food To Arkansas' Gross Domestic Product 1997-2019, Leah English, Jennie Popp, Wayne Miller

Research Reports and Research Bulletins

Agricultural production, processing, and retail industries are major contributors to Arkansas’ GDP. Agriculture contributes to the state economy through direct agricultural production, value-added processing, and agricultural retail activities. The Agriculture and Food Sector, which is comprised of agricultural production, processing, and retail industries, promotes economic strength through various interactions with other industries. The use of non-agricultural goods and services as inputs into the agricultural sector promotes diversified growth in Arkansas’ economy and thus plays a vital role in maintaining economic stability throughout the state. This report 1) compares the relative size of the Agriculture and Food Sector in Arkansas with …

Stem-Inhabiting Fungal Communities Differ Between Intact And Snapped Trees After Hurricane Maria In A Puerto Rican Tropical Dry Forest, François Maillard, Erin Andrews, Molly Moran, Peter G. Kennedy, Skip Van Bloem, Jonathan S. Schilling

Publications

Hurricanes impact forests by damaging trees and altering multiple ecosystem functions. As such, predicting which individuals are likely to be most affected has crucial economic importance as well as conservation value. Tree stem-inhabiting fungal communities, notably rot-causing agents, have been mentioned as a potential factor of tree predisposition to hurricane damage, but this assumption remains poorly explored. To examine this relationship, we sampled the stem wood of intact and damaged trees shortly after Hurricane Maria in a Puerto Rican dry tropical forest in 2017. We categorized samples depending on two types: trees with intact stems and trees in which stems …

Comparative Proteomic Analysis Of Leaves At Different Ages In Allotriploid Populus, Jiang Li, Yi Wang, Hairong Wei, Xiangyang Kang

Michigan Tech Publications

Triploid poplar trees have been shown to have a number of growth advantages, especially much bigger leaves that contribute greatly to the increased biomass. In this study, we focused on the relationships between leaf age and leaf metabolism in triploids. We performed comparative proteomic analysis of the 5th (FDR5), 10th (FDR10), and 25th (FDR25) leaves from the apical meristems in allotriploids originated from first-division restitution (FDR). A total of 1970, 1916, and 1850 proteins were identified in the FDR5, FDR10, and FDR25, respectively. Principle component analysis (PCA) and differentially accumulated protein (DAP) analysis showed that FDR10 and FDR25 displayed higher …

Can Trees Get Cancer?, Michael Kuhns

All Current Publications

This factsheet describes various cancer-like growths that are commonly found on trees.

Light Availability, Soil Phosphorus And Different Nitrogen Forms Negatively Affect The Functional Diversity Of Subtropical Forests, Taotao Han, Hai Ren, Dafeng Hui, Jun Wang, Hongfang Lu, Zhanfeng Liu

Biology Faculty Research

Understanding the relationship between functional diversity (FD) and species diversity changes and the effects of environmental factors on FD during succession is useful to improve forest management, conservation and restoration strategies. In this study, we measured 9 environmental factors related to light availability, soil water content and nutrients, and 19 leaf functional traits related to leaf light and nutrient utilization, growth and defense, water-use efficiency, and leaf respiration strategies in the dominant species during subtropical forest succession in southern China. Logarithmic function analysis and linear mixed model were used to explore the relationships between FD and species diversity and between …

Tree Seedling Planting Guide, Gabrielle Harden, Michael R. Kuhns

All Current Publications

A seedling is a tree less than three feet in height. This fact sheet covers obtaining, planting, and caring for small seedling trees and other woody plants. These trees can be sold and planted as bare-root or containerized stock.

Changes In Forest Hydrology And Soil Biogeochemistry Following A Simulated Tree Mortality Event Of Southern Pine Beetle, Courtney Siegert, Heidi Renninger, Nicole Hornslein

College of Forest Resources Publications and Scholarship

No abstract provided.

Use Of Altmetrics To Analyze Scholarworks In Natural Resource Management, David L. Kulhavy, R Philip Reynolds, Daniel R. Unger, Matthew W. Mcbroom, I-Kuai Hung, Yanli Zhang

Faculty Publications

Digital preservation of library materials has increased the need for methods to access the documents and contents maintained in digital archives. The use of altmetrics to quantify the impact of scholarly works, including PlumX, is increasing readership by listing articles in reference services. The outreach from the digital repository ScholarWorks at Stephen F. Austin State University (SFASU) highlights the impact within the natural resources community from Digital Commons, Forest Sciences Commons; and from the Natural Products Chemistry and Pharmacognosy Commons. The use of PlumX altmetrics was examined to evaluate usage, impact, and digital audience downloads for the Arthur Temple College …

Return To Campus_Learning Environment, University Of Maine

University of Maine Communications

Screenshot of University of Maine Fall 2020 webpage regarding SFR220 - Environment and Society, professor Jessica Leahy cancelling a week of lectures focused on public lands and asked students to spend an hour hiking, walking and otherwise experiencing conservation areas near them. Also, for SFR478 - Tools for Forest Management Leahy modified the course to take advantage of forests managed by the University of Maine and Orono Land Trust that were within walking distance of campus.

Meeting Minutes, October 14th, 2020, National Smokejumper Association Board Of Directors

National Smokejumper Association Meeting Minutes

Agenda: Call to Order; Introduction of Guest: Pferron Doss; Approval of Agenda; Introduction of Guest: Joe Stutler; Approval of Minutes; Treasurer’s Report; Investment Report; Introduction of Guest: Mark Belitz; Trails Program; Scholarship Report; The NSA "Keep the Flame" Legacy Jump List; Executive Director Report; By-law Revision; Vacant Secretary Position;

Reconstruction Of Piñon–Juniper Woodlands In The Sky Islands Of The Davis Mountains, Texas, Usa, Mohammad Bataineh, Brian P. Oswald, Hans M. Williams, Dan Unger, I-Kuai Hung

Faculty Publications

Piñon (Pinus spp. L.)–juniper (Juniperus spp. L.) woodlands’ historical stand structures were recreated to provide reference conditions and document long‐term changes in the Sky Islands of the Davis Mountains, Texas. Restoration of these isolated woodlands requires insights into the range of variability in current and historical stand structures, as well as an understanding of the spatiotemporal establishment and recruitment patterns of tree species. With drastic changes in forests and woodlands of the Southwestern United States widely reported, the main objective of this study was to reconstruct woodland tree temporal and spatial establishment patterns. A stratified random sampling approach was used …

Hot But Not Dry: Modest Changes In Water Relations For An Epiphytic Bromeliad In A Tropical Dry Deciduous Forest, Saúl Hernández-Robinson, Eric A. Graham, Olivia Hernández-González, Roberth Us-Santamaría, José Luis Simá, Fernando Arellano-Martín, José Luis Andrade

All Faculty Scholarship for the College of the Sciences

Premise of research. Epiphytic bromeliads endure intense seasonal environmental changes in the canopy of dry tropical deciduous forests. The analysis of the physiological responses of these epiphytes to environmental changes can be useful in assessing their plasticity, vulnerability, and adaptations to such extreme habitats.

Methodology. We measured microenvironmental variables and water relations for plants of the epiphytic bromeliad Tillandsia brachycaulos in three microhabitats within the canopy of a dry tropical forest. We measured individual plants for seasonal and spatial differences in light, leaf temperature, osmotic potential, cell wall elasticity, and relative capacitance as indications of their physiological responses …

West Chester University Green Legacy Project - Collections Management Plan, Office Of Sustainability

WCU Campus Sustainability Initiatives

The Green Legacy Project (GLP) was developed in 2009 to understand the value of the trees on the West Chester University campus. The overall goal of the GLP is to maintain a database of the current state of the university’s trees. This survey includes the collection of the field data of the trees (common name, Latin name, native status, Global Positioning System (GPS) location, diameter at breast height (DBH), height, ground cover, die back, and condition). These data are also analyzed using CITYgreen by American Forests as well as the i-Tree ECO model of the United States Department of Agriculture …

Climate, Snowmelt Dynamics And Atmospheric Deposition Interact To Control Dissolved Organic Carbon Export From A Northern Forest Stream Over 26 Years, Karl M. Meingast, Evan Kane, Ashley A. Coble, Amy Marcarelli, David Toczydlowski

Michigan Tech Publications

Increasing concentrations of dissolved organic carbon (DOC) have been identified in many freshwater systems over the last three decades. Studies have generally nominated atmospheric deposition as the key driver of this trend, with changes in climatic factors also contributing. However, there is still much uncertainty concerning net effects of these drivers on DOC concentrations and export dynamics. Changes in climate and climate mediated snowfall dynamics in northern latitudes have not been widely considered as causal factors of changes in long-term DOC trends, despite their disproportionate role in annual DOC export. We leveraged long-term datasets (1988–2013) from a first-order forested tributary …

Impacts Of Forest Management And Timber Harvest Practices On Karst Critical Zone Processes In Tongass National Forest, Alaska, Anna Gwendolyn Harris

Masters Theses & Specialist Projects

This study characterizes the throughfall, hydrogeochemistry, dissolution rates, and carbon sources of two proximate temperate rainforest cave systems within the Tongass National Forest in Southeast Alaska (Tongass). Study sites include: an old-growth forest, characterized by having never been logged (containing Walkabout Cave system); and a previously logged – within thirty years, second-growth forest (containing Zina Cave system). Precipitation data were recorded over a five-month period at 10-minute intervals, to understand the effects of throughfall between the altering old and second-growth canopies. At each major spring for the two cave systems, high-resolution data were collected from June 29 through November 21, …

Putting Out The Fire: A Review Of Wildlife Agency Responses To Chronic Wasting Disease, Miranda Huang, Noelle Thompson, Sonja Christensen, Steve Demarais

College of Forest Resources Publications and Scholarship

No abstract provided.

Environmental Soft Law As A Governance Strategy, Cary Coglianese

All Faculty Scholarship

Soft law governance relies on nongovernmental institutions that establish and implement voluntary standards. Compared with traditional hard law solutions to societal and economic problems, soft law alternatives promise to be more politically feasible to establish and then easier to adapt in the face of changing circumstances. They may also seem more likely to be flexible in what they demand of targeted businesses and other entities. But can soft law actually work to solve major problems? This Article considers the value of soft law governance through the lens of three major voluntary, nongovernmental initiatives that address environmental concerns: (1) ISO 14001 …

Enrollment Decision-Making By Students In Forestry And Related Natural Resource Degree Programmes Globally, T. L. Bal, M. D. Rouleau, T. L. Sharik, A. M. Wellstead

Michigan Tech Publications

A survey of 396 undergraduate and graduate students from 51 countries on 5 continents currently enrolled in Forestry or Related Natural Resource (FRNR) degree programmes was conducted of attendees to the International Union of Forest Research Organizations' (IUFRO) conference in Salt Lake City, Utah, 2014. These perspectives come from some of the most active students in their respective fields. We explored the motivating reasons for enrolling in their current FRNR programme, and conversely why they may have been hesitant to do so. Results indicate that enjoyment of nature was the most important factor on average driving the decision to enroll, …

The Dandy Scroll, Fall 2020, University Of Maine Pulp And Paper Foundation

General University of Maine Publications

The Fall 2020 issue of The Dandy Scroll newsletter produced by the University of Maine Pulp and Paper Foundation.

Public Preferences And Willingness To Pay For Invasive Forest Pest Prevention Programs In Urban Areas, Damian C. Adams, Jose R. Soto, John Lai, Francisco J. Escobedo, Sergio Alvarez, Abu S.M.G. Kibria

Faculty Scholarship and Creative Works

Invasive forest pests can cause environmental and economic damage amounting to billions of dollars (US) in lost revenues, restoration and response costs, and the loss of ecosystem services nationwide. Unfortunately, these forest pests do not stay confined to wildland forest areas and can spread into suburban and urban areas, imposing significant costs on local governments, homeowners, and management agencies. In this study, a contingent valuation experiment is used to estimate Florida residents’ willingness to pay (WTP) a monthly utility fee that would protect urban forests from invasive pests by implementing a monitoring and prevention program for their early detection and …