Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- Selected Works (40)
- SIT Graduate Institute/SIT Study Abroad (7)
- University of Arkansas, Fayetteville (5)
- University of Nebraska - Lincoln (5)
- Chapman University (3)
-
- Michigan Technological University (3)
- University of Kentucky (3)
- Cal Poly Humboldt (2)
- City University of New York (CUNY) (1)
- Claremont Colleges (1)
- Governors State University (1)
- James Madison University (1)
- Old Dominion University (1)
- Olivet Nazarene University (1)
- South Dakota State University (1)
- Stephen F. Austin State University (1)
- The University of Akron (1)
- The University of Maine (1)
- The University of Southern Mississippi (1)
- University of Dayton (1)
- University of Massachusetts Amherst (1)
- University of Nevada, Las Vegas (1)
- University of New Mexico (1)
- Valparaiso University (1)
- West Virginia University (1)
- Western Washington University (1)
- Keyword
-
- Diversity (3)
- Ecology (3)
- Climate change (2)
- Drought (2)
- Growth (2)
-
- Land management (2)
- Management (2)
- Oak (2)
- Reforestation (2)
- Species richness (2)
- Abundance (1)
- Acer saccharum (1)
- Acorn woodpecker (1)
- Adaption (1)
- Adoption; agricultural BMP; conservation practices and programs; policy and practice implications; qualitative synthesis; water quality (1)
- Aerial radio-telemetry (1)
- Agriculture (1)
- Agrilus planipennis Fairmarie (1)
- Ailanthus altissima (1)
- Alliaria petiolata (1)
- Animal agriculture (1)
- Annual report (1)
- Apiary site selection (1)
- Apis melifera (1)
- Arabian Gulf (1)
- Arctic (1)
- Ash (1)
- Aspen (1)
- Bacteria (1)
- Bald eagle (1)
- Publication
-
- Ryan McEwan (40)
- Independent Study Project (ISP) Collection (7)
- Graduate Theses and Dissertations (4)
- Dissertations, Master's Theses and Master's Reports (3)
- Electronic Theses and Dissertations (3)
-
- USDA Forest Service / UNL Faculty Publications (3)
- Biology, Chemistry, and Environmental Sciences Faculty Articles and Research (2)
- Theses and Dissertations--Forestry and Natural Resources (2)
- Biological Sciences Faculty Publications (1)
- Biology ETDs (1)
- Cal Poly Humboldt theses and projects (1)
- Five Rivers MetroParks Collaboration Data Archive (1)
- Graduate Theses, Dissertations, and Problem Reports (1)
- Honors Program Projects (1)
- IdeaFest: Interdisciplinary Journal of Creative Works and Research from Cal Poly Humboldt (1)
- Life Sciences Faculty Research (1)
- Master's Theses (1)
- Masters Theses (1)
- Masters Theses, 2010-2019 (1)
- Mathematics, Physics, and Computer Science Faculty Articles and Research (1)
- Nebraska Forest Service: Publications (1)
- Occam's Razor (1)
- Pomona Senior Theses (1)
- Publications and Research (1)
- Research Days (1)
- Research Reports and Research Bulletins (1)
- School of Biological Sciences: Faculty Publications (1)
- The Great Lakes Entomologist (1)
- Theses and Dissertations--Animal and Food Sciences (1)
- Williams Honors College, Honors Research Projects (1)
- Publication Type
- File Type
Articles 31 - 60 of 86
Full-Text Articles in Life Sciences
Overstory, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Overstory, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
No abstract provided.
Lonicera Maackii Leaf Leachate Toxicity: Survival, Eric B. Borth, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Lonicera Maackii Leaf Leachate Toxicity: Survival, Eric B. Borth, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
Lymnaea stagnalis and Hyalella azteca
Lonicera Maackii Leaf Leachate Toxicity: Physicochemical Data, Eric B. Borth, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Lonicera Maackii Leaf Leachate Toxicity: Physicochemical Data, Eric B. Borth, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
Lymnaea stagnalis and Hyalella azteca
Lonicera Maackii Leaf Feeding Tests: Initial Mass, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Lonicera Maackii Leaf Feeding Tests: Initial Mass, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
Lymnaea stagnalis, Hyalella Azteca, and Allocapnia spp.
Lonicera Maackii Leaf Feeding Tests: Physicochemical Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Lonicera Maackii Leaf Feeding Tests: Physicochemical Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
Lymnaea stagnalis, Hyalella Azteca, and Allocapnia spp.
Lonicera Maackii Leaf Feeding Tests: Survival, Growth, Loss Of Leaf Mass, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Lonicera Maackii Leaf Feeding Tests: Survival, Growth, Loss Of Leaf Mass, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
Lymnaea stagnalis, Hyalella Azteca, and Allocapnia spp.
Lonicera Maackii Berry Leachate Toxicity: Survival And Mass, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Lonicera Maackii Berry Leachate Toxicity: Survival And Mass, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
In-stream (in situ) and in-lab microcosm trials using Hyalella azteca, Anthopotamus verticis, and Allocapnia spp.
Lonicera Maackii Flower Leachate Toxicity: Survival And Mass, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Lonicera Maackii Flower Leachate Toxicity: Survival And Mass, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
In-stream (in situ) and in-lab microcosm trials using Hyalella Azteca and Anthopotamus verticis
Lonicera Maackii Flower Leachate Toxicity: Physicochemical Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Lonicera Maackii Flower Leachate Toxicity: Physicochemical Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
In-stream (in situ) and in-lab microcosm trials using Hyalella Azteca and Anthopotamus verticis
Lonicera Maackii Berry Leachate Toxicity: Physicochemical Data, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Lonicera Maackii Berry Leachate Toxicity: Physicochemical Data, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
In-stream (in situ) and in-lab microcosm trials using Hyalella azteca, Anthopotamus verticis, and Allocapnia spp.
Lonicera Maackii Berry Leachate Toxicity: Length, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Lonicera Maackii Berry Leachate Toxicity: Length, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
In-stream (in situ) and in-lab microcosm trials using Hyalella azteca, Anthopotamus verticis, and Allocapnia spp.
Leaf Litter Basket, Erin C. Rowekamp, Taylor M. Buskey, Julia I. Chapman, Ryan W. Mcewan
Leaf Litter Basket, Erin C. Rowekamp, Taylor M. Buskey, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
No abstract provided.
Honeysuckle, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Honeysuckle, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
No abstract provided.
Herbaceous Vegetation: June, Julia I. Chapman, M. E. Maloney, Erin C. Rowekamp, Mitchell J. Kukla, Sean D. Mahoney, Eric B. Borth, Ryan W. Mcewan
Herbaceous Vegetation: June, Julia I. Chapman, M. E. Maloney, Erin C. Rowekamp, Mitchell J. Kukla, Sean D. Mahoney, Eric B. Borth, Ryan W. Mcewan
Ryan McEwan
June
Herbaceous Vegetation: August, Julia I. Chapman, M. E. Maloney, Erin C. Rowekamp, Mitchell J. Kukla, Sean D. Mahoney, Eric B. Borth, Ryan W. Mcewan
Herbaceous Vegetation: August, Julia I. Chapman, M. E. Maloney, Erin C. Rowekamp, Mitchell J. Kukla, Sean D. Mahoney, Eric B. Borth, Ryan W. Mcewan
Ryan McEwan
August
Decadal Effects Of Thinning On Understory Light Environments And Plant Community Structure In A Subtropical Forest, Ho-Chen Tsai, Jyh-Min Chiang, Ryan Mcewan, Teng-Chiu Lin
Decadal Effects Of Thinning On Understory Light Environments And Plant Community Structure In A Subtropical Forest, Ho-Chen Tsai, Jyh-Min Chiang, Ryan Mcewan, Teng-Chiu Lin
Ryan McEwan
Canopy-opening disturbance such as thinning has immediate and substantive effects on understory microclimate and therefore the establishment and growth of understory plants. A large number of studies have reported the effects of thinning on tree growth, but few studies have examined long-term effects of thinning on understory light environments and species and functional diversity of understory plants. Even less is known whether the change in understory plant community structure observed following canopy disturbance is short-lived and would diminish as the canopy closes or a long lasting due to legacy effects. We examined the effects of an experimental removal of 25% …
Herbaceous Vegetation: April, Julia I. Chapman, M. E. Maloney, Erin C. Rowekamp, Mitchell J. Kukla, Sean D. Mahoney, Eric B. Borth, Ryan W. Mcewan
Herbaceous Vegetation: April, Julia I. Chapman, M. E. Maloney, Erin C. Rowekamp, Mitchell J. Kukla, Sean D. Mahoney, Eric B. Borth, Ryan W. Mcewan
Ryan McEwan
April
Conventional Method Comparison Data (Ves And Hess), M. E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Conventional Method Comparison Data (Ves And Hess), M. E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
No abstract provided.
Aquatic Fine Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan
Aquatic Fine Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
No abstract provided.
Bankfull Width, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Bankfull Width, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
No abstract provided.
Chemical Analysis Data, Charlotte A. Shade, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Chemical Analysis Data, Charlotte A. Shade, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
Hardness, Alkalinity, Orthophosphate, Soluble reactive phosphorus, Total suspended solids, Dissolved organic carbon, Total Kjeldahl nitrogen, Nitrate:Nitrite ratio
Aquatic Coarse Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan
Aquatic Coarse Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
No abstract provided.
Biofilm Ash Free Dry Mass And Chlorophyll A, Kevin W. Custer, Sean D. Mahoney, Mitchell J. Kukla, Corey Kuminecz, Joseph Murphy, Julia I. Chapman, Ryan W. Mcewan
Biofilm Ash Free Dry Mass And Chlorophyll A, Kevin W. Custer, Sean D. Mahoney, Mitchell J. Kukla, Corey Kuminecz, Joseph Murphy, Julia I. Chapman, Ryan W. Mcewan
Ryan McEwan
No abstract provided.
Varieties Of The Highly Dispersible And Hypervariable Tree, Metrosideros Polymorpha, Differ In Response To Mechanical Stress And Light Across A Sharp Ecotone, Jill M. Ekar, Donald K. Price, Melissa A. Johnson, Elizabeth A. Stacy
Varieties Of The Highly Dispersible And Hypervariable Tree, Metrosideros Polymorpha, Differ In Response To Mechanical Stress And Light Across A Sharp Ecotone, Jill M. Ekar, Donald K. Price, Melissa A. Johnson, Elizabeth A. Stacy
Life Sciences Faculty Research
Premise: The drivers of isolation between sympatric populations of long‐lived and highly dispersible conspecific plants are not well understood. In the Hawaiian Islands, the landscape‐dominant tree, Metrosideros polymorpha, displays extraordinary phenotypic differences among sympatric varieties despite high dispersibility of its pollen and seeds, thereby presenting a unique opportunity to investigate how disruptive selection alone can maintain incipient forms. Stenophyllous M. polymorpha var. newellii is a recently evolved tree endemic to the waterways of eastern Hawai'i Island that shows striking neutral genetic differentiation from its ancestor, wet‐forest M. polymorpha var. glaberrima, despite sympatry of these forms. We looked for evidence for, …
Synthesizing Conservation Motivations And Barriers: What Have We Learned From Qualitative Studies Of Farmers’ Behaviors In The United States?, Pranay Ranjan, Sarah P. Church, Kristin Floress, Linda S. Prokopy
Synthesizing Conservation Motivations And Barriers: What Have We Learned From Qualitative Studies Of Farmers’ Behaviors In The United States?, Pranay Ranjan, Sarah P. Church, Kristin Floress, Linda S. Prokopy
USDA Forest Service / UNL Faculty Publications
Since 2011, qualitative studies examining adoption of conservation practices and programs (CPPs) have burgeoned. This article presents a systematic review of all U.S.-based qualitative investigations into CPP adoption since 1996. We found three themes are discussed primarily as motivating adoption: farmer characteristics, environmental awareness, and trust in information sources. Four themes are discussed primarily as barriers to adoption: farm management, negative perceptions of a conservation practice, perceptions that adoption is a risk, and land tenure. Four themes were discussed as both motivations and barriers: economic factors, social norms, perceptions of government programs, and farm characteristics. Overall, we found farmers’ economic …
Garlic Mustard (Alliaria Petiolata) Management Effectiveness And Plant Community Response, Erin Coates-Connor
Garlic Mustard (Alliaria Petiolata) Management Effectiveness And Plant Community Response, Erin Coates-Connor
Masters Theses
The control and eradication of the invasive biennial herb garlic mustard (Alliaria petiolata) and the restoration of invaded forest habitats present important linked challenges to land managers in North America. Removing garlic mustard by hand and by glyphosate herbicide application have both been used as eradication strategies with mixed results. Each method has advantages and disadvantages, but they are rarely compared for effectiveness and community impact across multiple years of management. Some previous studies have shown improvements in species diversity and plant community composition following management, while others have found no differences. To better understand both garlic mustard …
Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2017, Leah English, Jennie Popp, Wayne Miller
Economic Contribution Of The Agricultural Sector To The Arkansas Economy In 2017, Leah English, Jennie Popp, Wayne Miller
Research Reports and Research Bulletins
Agriculture and associated agricultural activities are major contributors to the Arkansas economy. Agriculture is defined as the sum of agricultural production and processing activities, unless otherwise specified, and includes crop and animal production and processing, agricultural support industries, forestry and forest products, and textile goods. Agriculture contributes to the economy through direct agricultural production and value-added processing, and also leads to economic activity in other parts of the economy. This report is the eleventh in a series of reports examining agriculture’s economic contribution to the Arkansas economy. The total economic contribution of agriculture (direct, indirect, and induced effects) on value …
Warming Up: Climate Change Related Shifts Of Mycorrhizal Fungal Communities In High Latitude Ecosystems, Megan Rae Devan
Warming Up: Climate Change Related Shifts Of Mycorrhizal Fungal Communities In High Latitude Ecosystems, Megan Rae Devan
Biology ETDs
This dissertation examines how climate change affects mycorrhizal fungal communities in boreal and arctic ecosystems. In chapter one, I revealed that increases in fire severity and related increases in deciduous tree dominance result in greater Ascomycota relative abundance (RA) and subsequent declines in Basidiomycota RA. In chapter two I analyzed the effects of post-fire mycorrhizal fungal communites on host growth. There were trends at the fungal genus level that were largely reflected at the guild level across all hosts; however, there were some fungal genera that had the opposite effect on different host species. In chapter three, I found host …
Stand Location Variance As An Indicator Of Disturbance Regime In A Monotypic Tsuga Canadensis Forest, Cole J. Doolittle
Stand Location Variance As An Indicator Of Disturbance Regime In A Monotypic Tsuga Canadensis Forest, Cole J. Doolittle
Honors Program Projects
Disturbance regimes, which are critical components of forest ecosystems, influence forest morphology, biodiversity, and regeneration. The heterogeneity of disturbance regimes are not well understood on small scales. In this study I analyzed tree cores from five sites within a Tsuga canadensis (Eastern hemlock) forest in northern Wisconsin to investigate disturbance regimes through mean growth release criteria. This study investigated the following questions: 1) Are disturbance regimes in T. canadensis stand level or site specific? 2) If disturbances are site specific, is site location an indicator of disturbance regime? 3) Do site characteristics such as density and tree diameter at breast …
Herpetological Assemblages In Tropical Dry Forests Of The Azuero Peninsula, Panama: An Evaluation Of Reforestation, Tyler Kovacs
Herpetological Assemblages In Tropical Dry Forests Of The Azuero Peninsula, Panama: An Evaluation Of Reforestation, Tyler Kovacs
Masters Theses, 2010-2019
Tropical dry forests are considered one of the most endangered tropical ecosystems making reforestation increasingly necessary to restore Panama’s unique ecoregion. The isolated dry ecoregion surrounding the Bay of Parita in Panama has a long history of deforestation and cattle grazing. Successful reforestation of this land is important to restore ecosystem health and biodiversity. In Panama, reforestation ranges from monocultures of exotic teak (Tectona grandis) to passive regeneration. Faunal recovery within these reforestation systems may vary due to different habitat characteristics. In this study, amphibian and reptile communities were compared in two types of reforestation systems and protected riparian forests …