Forest Sciences Commons^™

Rain-Induced Changes In Soil Co2 Flux And Microbial Community Composition In A Tropical Forest Of China, Qi Deng, Dafeng Hui, Guowei Chu, Xi Han, Quanfa Zhang

Biology Faculty Research

Rain-induced soil CO₂ pulse, a rapid excitation in soil CO₂ flux after rain, is ubiquitously observed in terrestrial ecosystems, yet the underlying mechanisms in tropical forests are still not clear. We conducted a rain simulation experiment to quantify rain-induced changes in soil CO₂ flux and microbial community composition in a tropical forest. Soil CO₂ flux rapidly increased by ~83% after rains, accompanied by increases in both bacterial (~51%) and fungal (~58%) Phospholipid Fatty Acids (PLFA) biomass. However, soil CO₂ flux and microbial community in the plots without litters showed limited response to rains. Direct releases …

Smokejumper Obituary: Laws, David G. (Redmond 1966), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Egan, Terry (Cave Junction 1965), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

The Impact Weather Has On Nyc Citi Bike Share Company Activity, Mark Martinez

Journal of Environmental and Resource Economics at Colby

This paper seeks to figure out the effect weather has on individuals’ behavior. A more focused approach to determining this effect is seeing how different weather conditions ranging from the temperature, the precipitation, the amount of inches of snowfall and the wind speed effect the ridership of Citi Bikes throughout all four seasons. The approach of this research paper is using data from the National Climatic Data Center that focuses in on the weather found in Manhattan, New York and correlates each of the weather conditions to the total number of trips per day that is provided by the Citi …

The Effects From Public Transportation On Property Values: A Closer Look At Scituate, Hanover, And Norwell, Massachusetts, Alexandra Taylor Perticone, Christine S. Coveney

Journal of Environmental and Resource Economics at Colby

Prior studies have expressed the value of location in real estate, but more recent studies have explored the influence that public transportation has had on housing prices. Access to public transportation is understood to increase the value of homes. Easier access to public transportation allows for shorter and more convenient commutes into or within cities. However, other studies have found that proximity to public transportation can also have adverse effects on property values. This paper investigates whether the implementation of the Greenbush Commuter line in Massachusetts in October 2007 increased the housing prices in Scituate, Ma--the furthest town from the …

Invited Introduction To Jerec, Matthew Kahn

Journal of Environmental and Resource Economics at Colby

No abstract provided.

Welcome By The Editor, Nathan W. Chan

Journal of Environmental and Resource Economics at Colby

No abstract provided.

The Effects Of Isoprene Emission From Native And Invasive Trees On Local Air Quality, Aarti P. Mistry

DePaul Discoveries

Biogenic volatile organic compounds (BVOC) are the second-most abundant reactive gasses emitted into the atmosphere by the biosphere. Isoprene is a BVOC produced by the process of photosynthesis from vegetation and is emitted from plant leaves. Isoprene is a hydrocarbon that combines with oxides of nitrogen in the atmosphere to create ozone in the troposphere, an air pollutant. Invasive trees alter ecosystems and affect native tree populations. Invasive tree species in the Chicagoland area are outcompeting native tree species and expanding rapidly. The effect of isoprene emissions on air quality is a well-researched area in the atmospheric science community, however, …

In-Stream Habitat Predicts Salamander Occupancy And Abundance Better Than Landscape-Scale Factors Within Exurban Watersheds In A Global Diversity Hotspot, Nathaniel Weaver, Kyle Barrett

Publications

The southern Appalachian Mountains have experienced rapid human population growth rates since the 1980s. Land used practices are shifting from rural to residential. The majority of development has been low density, and is often near biologically diverse areas such as National Forests and National Parks. The long-term effects of urbanization in the southeastern Appalachian Mountains are not clearly understood and even less is known with respect to stream salamander response to urbanization. In order to determine the temporal influence of exurban housing on southern Appalachian streams we sampled 27 first- and second-order streams in watersheds containing exurban developments ranging in …

Telling Fire’S Story Through Narrative And Art, Stephen W. Barrett

Joint Fire Science Program Digests

Modern works by highly skilled narrative authors and artists have become increasingly useful for telling the story of wildland fire in the United States. Using unconventional means—and with partial funding by the Joint Fire Science Program—creative individuals have spawned some colorful and heartfelt messages that convey insightful information about wildland fire, climate, and other elements of nature to an increasingly receptive public. Recent narrative works by well-known authors, such as Stephen J. Pyne, and creative art pieces by well-established and emerging artists have helped depict fire in a new light to audiences that scientists may rarely reach. This issue of …

Reconciling Niches And Neutrality In A Subalpine Temperate Forest, Tucker J. Furniss, Andrew J. Larson, James A. Lutz

Wildland Resources Faculty Publications

The Unified Neutral Theory of Biodiversity has been put forth to explain species coexistence in forests worldwide, but its assumption of species equivalence has been met with much debate. Theoretical advancements have reconciled the opposing concepts of neutral and niche theories as two ends of a continuum, improving our understanding of global patterns in diversity and community assembly. However, the relative importance of niche and neutral processes remains understudied in temperate forests. To determine the balance of niche and neutral processes in climatically limited subalpine temperate forests, we established the Utah Forest Dynamics Plot, a 13.64-ha plot comprising 27,845 stems …

Carbon And Nitrogen Accumulation And Decomposition From Coarse Woody Debris In A Naturally Regenerated Korean Red Pine (Pinus Densiflora S. Et Z.) Forest, Nam Jin Noh, Tae Kyung Yoon, Rae-Hyun Kim, Nicholas Bolton, Choonsig Kim, Yowhan Son

Michigan Tech Publications, Part 1

The contribution of coarse woody debris (CWD) to forest carbon (C) and nitrogen (N) dynamics is poorly quantified. This study quantified total C and N content in CWD and estimated the decomposition rates of CWD at different decay stages in a 70-year-old naturally regenerated Korean red pine forest (Pinus densiflora S. et Z.). The N concentration in CWD varied among species and decay classes (from 0.15% to 0.82%), and exhibited a decreasing pattern in C:N ratios with increasing decay class. Total CWD amounts of 4.84 Mg C ha⁻¹, dominated by pine logs (45.4%) and decay class III (40.0%), …

Smokejumper Obituary: Maggio, Joel Louis "Joey" (Redding 2009), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Wagner, Paul E. (North Cascades 1952), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Examination Of Human Impacts On The Biodiversity And Ecology Of Lichen And Moss Communities, Hannah Marie Prather

Dissertations and Theses

Globally, more than half of the world's population is living in urban areas and it is well accepted that human activities (e.g. climate warming, pollution, landscape homogenization) pose a multitude of threats to ecosystems. Largely, human-related impacts on biodiversity will hold consequences for larger ecological processes and research looking into human impacts on sensitive epiphytic lichen and moss communities is an emerging area of research. While seemingly small, lichen and moss communities exist on nearly every terrestrial ecosystem on Earth and contribute to whole-system processes (e.g. hydrology, mineral cycling, food web energetics) worldwide. To further examine human impacts on epiphytic …

The Influence Of Exurban Landscapes And Local Site Characteristics On Riparian Vegetation, Nathan Weaver, Kyle Barrett, Don L. Hagan

Publications

The southern Appalachian Mountains have experienced large population growth and a change in land use in the past 30 years. The majority of development has been low density, suburban land, known as exurban development. The long-term effects of exurbanization on riparian vegetative communities in the southeastern Appalachian Mountains are not well known. We sought to determine if vegetative community composition and structure change as a function of watershed–level variables such as time since neighborhood development or percent impervious surface within the watershed. We also assessed local–scale measures of disturbance such as canopy cover and basal area. Over two years we …

Timber Talk, Vol. 55, No. 2, June 2017

Timber Talk: Nebraska Forest Industry Newsletter

In This Issue

Lumber Market Reports 1

Hardwood Lumber Prices 2

Letter from the Editor: Nebraska Forest Products Association Can Nebraska’s beef industry be a model for the forest products industry? 3

American Wood Fibers--Yes Virginia, there is pine in Nebraska...And it has value! 4

Pine Ridge Sawmill Ready to Come Back to Life--Doescher Mill looking to rent/lease complete sawmill operation 5

Workshop Announcement--Portable Sawmill Operations and Lumber Drying 6

Nebraska Forest Service Awarded Biochar Grant 6

Nebraska Forest Industry Spotlight 7

Forest Products Specialists Tour Nebraska Facilities 7

Timber Sales 8

Evaluation Of Mowing Frequency On Right-Of-Way Plant Communities In Mississippi., Edward D. Entsminger, Jeanne C. Jones, John W. Guyton, Bronson K. Strickland, Bruce D. Leopold

CFR Publications

Native grasses and native wildflowers are declining, especially along roadside right-of-ways because of intensive mowing and herbicide management practices. Roadside right-of-ways undergo regular disturbances such as mowing, maintenance, and road developments that affect soils, groundwater, surface hydrology, and vegetation composition. We investigated species richness and percent coverage within plant communities along highway right-of-ways to determine if reduced mowing increased native plant coverage. The study was conducted using 10 research plots situated along Highway 25 in Oktibbeha and Winston counties, Mississippi. Each research plot consisted of three different treatments as follows: one that included greater than four mowings per year, one …

Fate Of Conductive Ink Pigments During Recycling And Landfill Deposition Of Paper-Based Printed Electronics, James Edward Atkinson

Dissertations

Printed electronics (PE) are being developed as an alternative to traditional electronics, due to the more efficient use of materials and lower cost of production. The overall goal of this study was to understand how metallic pigments in conductive inks in PE are partitioned during landfill disposal and paper recycling conditions. The purpose is to assess the potential environmental impacts of PE landfilling in terms of metal leaching and to help develop new strategies for sequestering metallic ink components while paper-based PE are subjected to conventional paper recycling methods. The objective of this research is to study the fate of …

Smokejumper Obituary: Buhaly, Joseph (North Cascades 1947), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Scheuch, Brian C. (Missoula 1955), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Mining Site Reclamation Planning Based On Land Suitability Analysis And Ecosystem Services Evaluation: A Case Study In Liaoning Province, China, Jiali Wang, Fuqiang Zhao, Jian Yang, Xiaoshu Li

Forestry and Natural Resources Faculty Publications

Restoration of the degraded ecosystem is a global priority for achieving sustainable development. Although increasing ecosystem service is an important goal of ecological restoration, it is rarely used to inform mine reclamation. This study proposed a reclamation strategy that incorporated land suitability analysis and ecosystem service evaluation for a mining site in Liaoning Province, China. We assessed the land suitability for three reclamation alternatives and identified suitable land uses for each location by comparing their suitability levels. For areas that were suitable for multiple land uses with the same suitability level, the future land uses cannot be identified by land …

Smokejumper Obituary: Ricketts, Gary (Redmond 1972), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Richcreek, Roger W. (Redmond 1966), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Egger, Bruce Emil (Mccall 1946), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Smokejumper Obituary: Betty, Howard W. (North Cascades 1948), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Effect Of Spatial Influence On Endophyte Diversity Within Alnus Rubra, Sebastian L. Singleton

Student Research Symposium

Red alders (Alnus rubra) of the Pacific Northwest are characterized as actinorhizal dicotyledons; plants that possess that ability to form symbiotic relationships with endophytic organisms, which result in nitrogen-fixing nodules. In Alders of the order Fagales, such a symbiotic relationship with Frankia bacteria allows these plants to play crucial environmental roles as pioneer species able to colonize and enrich nutrient-deficient soils. This ability has a major impact on ecological succession by enabling other species to establish. Although inoculation with frankia bacteria is known to increase symbiotic nitrogen fixation capabilities of actinorhizal plants, whether they could confer the same benefit to …

Smokejumper Obituary: Hoffman, John O. (Missoula 1955), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

Herbaceous 2017, Julia I. Chapman, Margaret E. Maloney, Taylor M. Buskey, Ryan W. Mcewan

Data Files: Drew Woods Permanent Plots

Herbaceous vegetation data collected in 2017 at Drew Woods State Nature Preserve in Darke County, OH. Data key is provided in a supplemental file.

Tree Damage From Hurricane Matthew Affecting Forest Dynamics In Congaree National Forest, Connor Lentz

Senior Theses

The Congaree National Forest serves as an ecological model for bottomland-hardwood forests. Hurricanes periodically strike the Southeast United States, with high-wind speeds causing damage affecting the Congaree National Forest and modifying forest dynamics. This has been well-studied from the effects of Hurricane Hugo in September 1989 (Sharitz et al. 1993). In October 2016, Hurricane Matthew, a category 5 storm, made landfall in the Southeastern United States, and eventually moved through the Congaree National Forest. The high winds and precipitation caused widespread tree damage throughout Congaree. This study used a belt-transect survey of 14.7km of trails throughout the park to record …