Forest Sciences Commons^™

Wind, Ice, And Bugs: Impacts In The Gordon Natural Area, Gerard Hertel, Kendra Mcmillin

Historical Tree Fall Study Documents

No abstract provided.

Effects Of Excess Nitrogen Deposition On Rubus Spp. (Raspberry) Within A Central Appalachian Hardwood Forest, Jake H. Billmyer

Theses, Dissertations and Capstones

This thesis contributes to on-going research at Marshall University on effects of excess nitrogen (N) deposition on hardwood forests. Excess N can decrease plant biodiversity and enhance loss of nutrients (e.g., Ca⁺⁺). Preliminary results have suggested that excess N has increased cover of Rubus (blackberry) in the herbaceous layer. The purpose of this study was to quantify the response of Rubus to the N treatment, relating Rubus cover to species richness and using foliar analysis to examine effects on nutrient availability. It is expected that increased Rubus will decrease biodiversity by eliminating N-efficient species, and that added N …

What Is Valuable?, Kelly Harer

SR & SC Masters Projects

No abstract provided.

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 …

Tree Inventory Analysis: A Comparison Of Park Species Richness To The Surrounding Neighborhoods In Rock Island, Illinois, Kevin Root

Urban Forest Project

Urban forests (parks, right-of-way trees, yards, and remnant woodlots and semi-natural areas) are critical sources such diversity in urban areas. Diversity of urban forest is often related to the socioeconomic status, housing age, and elevation of the neighborhood. With the invasion of the Emerald Ash Borer (EAB) in the last decade, conserving and enhancing the diversity of urban forests has become an important tool in increasing the resilience of such ecosystems to such devastating invasion. We assessed the diversity and composition of the forests of 17 parks in Rock Island, Illinois and examined the relationship between such diversity and the …

Understory Diversity And Composition Drives Carabid Assemblages, Tierney Brosius, Michael Reisner

Biology: Faculty Scholarship & Creative Works

Fire suppression has nearly eliminated fire as a disturbance in temperate deciduous forests. Lack of fire is transforming these ecosystems through a positive feedback loop termed mesophication: cool, damp, shady conditions become continually more favorable for a few mesophytic species, while deteriorating for diverse array of heliophytic ones. Disturbances caused by urbanization fragment and degrade remnant forests. In urban settings, human management (or lack thereof) is often a dominate driver of succession. Carabid diversity, understory vegetation, patch size, patch connectivity, and permeable surface area were all examined in multiple forest plots in Rock Island and Moline. The result of this …

Optimal Land Cover Mapping And Change Analysis In Northeastern Oregon Using Landsat Imagery., Michael J. Campbell, Russell G. Congalton, Joel N. Hartter

Natural Resources & the Environment

Abstract The necessity for the development of repeatable, efficient, and accurate monitoring of land cover change is paramount to successful management of our planet’s natural resources. This study evaluated a number of remote sensing methods for classifying land cover and land cover change throughout a two-county area in northeastern Oregon (1986 to 2011). In the past three decades, this region has seen significant changes in forest management that have affected land use and land cover. This study employed an accuracy assessment-based empirical approach to test the optimality of a number of advanced digital image processing techniques that have recently emerged …

Production Of Dihaploids In Durum Wheat Using Imperata Cylindrica L. Mediated Chromosome Elimination, Nafi̇z Çeli̇ktaş, Murat Ti̇ryaki̇oğlu, Ersi̇n Can, Duygu Kutlay, Rüştü Hati̇poğlu

Turkish Journal of Agriculture and Forestry

The possibility of obtaining dihaploid durum wheat (Triticum durum L.) plants by interspecific hybridization with Imperata cylindrica L. was studied. Ten local varieties and 1 commercial durum wheat variety (Triticum durum L., 2n = 4x = 28; AABB) were used as maternal lines. Imperata cylindrica L. (2n = 2x = 20) ecotypes sampled from different districts of Hatay were used as the pollen source. Isolated embryos were placed in an MS medium for plant regeneration 14 days after the interspecific hybridization. The highest average seed setting, embryo formation, and dihaploid plant regeneration for the different hybrid combinations were determined as …

Tomato Salt Tolerance: Impact Of Grafting And Water Compositionon Yield And Ion Relations, Gülüzar Duygu Semi̇z, Donald L. Suarez

Turkish Journal of Agriculture and Forestry

No abstract provided.

Allelopathic Effects Of Decomposed Leaf Litter From Intercropped Trees On Rape, Xiaoxi Zhang, Zengwen Liu, Nan Tian, Nhu Trung Luc, Bochao Zhu, Yuanhao Bing

Turkish Journal of Agriculture and Forestry

No abstract provided.

Effect Of Plant Growth-Promoting Bacteria And Arbuscular Mycorrhizal Fungi On Lipid Peroxidation And Total Phenolics Of Strawberry (Fragaria × Ananassa 'San Andreas') Under Salt Stress, Aysen Koç

Turkish Journal of Agriculture and Forestry

No abstract provided.

Effects Of Different Priming Applications On Seed Germination And Some Agromorphological Characteristics Of Bread Wheat (Triticum Aestivum L.), Faruk Toklu, Faheem Shahzad Baloch, Tolga Karaköy, Hakan Özkan

Turkish Journal of Agriculture and Forestry

No abstract provided.

Changes In Plant Species Composition And Structure In Two Peri-Urban Nature Preserves Over 10 Years, Rebecca W. Dolan, Jessica D. Stepens, Marcia E. Moore

Scholarship and Professional Work - LAS

Peri-urban natural areas, at the boundaries of cities and adjacent agricultural/rural land, are subject to ecological threats endemic to both land use types. We used permanent plots to document changes in habitat quality by monitoring herbaceous-layer plant species presence and cover over a decade (1996/97 and 2007) in two peri-urban nature preserves in central Indiana, U.S.A. The preserves are comprised of different forest community types: wet-mesic depressional forest and mesic upland forest. Habitat characteristics, based on Floristic Quality Assessment parameters, showed only a single change for either preserve between survey years: wetness values were lower in the wet-mesic depressional site …

The Spanish And Mexican Baseline Of California Tree And Shrubland Distributions Since The Late 18th Century, Richard A. Minnich, Brett R. Goforth, Richard Minnich

Aliso: A Journal of Systematic and Floristic Botany

Historical distributions of 31 tree species, chaparral, and coastal sage scrub described by Spanish land explorers in the late eighteenth and early nineteenth centuries (1769–1806) and in land grant diseños (1784–1846) are reconstructed at 634 localities across central and southern California. This baseline predates most formal botanical surveys by nearly a century, allowing for assessment of vegetation change over the broadest time frame for comparison with pre-historical evidences and future distributions. Spanish accounts are compared with historical sources in the Mexican era (1821–1848), American settlement (1848–1929), and modern range maps of the 1929–1934 Vegetation Type Map (VTM) survey. Among tree …

Impacts Of Logging And Prescribed Burning In Longleaf Pine Forests Managed Under Uneven-Aged Silviculture, Ferhat Kara, Edward Francis Loewenstein

Turkish Journal of Agriculture and Forestry

The longleaf pine (Pinus palustris Mill.) ecosystem has historically been very important in the southeastern United States due to its extensive area and high biodiversity. Successful regeneration of longleaf pine forests requires an adequate number of well-distributed seedlings. Thus, mortality of longleaf pine seedlings during logging operations and prescribed burning appears to be important. Longleaf forests have been commonly managed using even-aged silvicultural methods, but, recently, interest in the use of uneven-aged (UEA) methods has increased in these forests. Research on the impact of UEA logging in longleaf forests is limited. In addition, the influence of overstory density on the …

Length Accuracy Of Logs From Birch And Aspen Harvested In Thinning Operations, Mariusz Bembenek, Piotr S. Mederski, Zbigniew Karaszewski, Agnieszka Lacka, Witold Grzywinski, Andrzej Wegiel, Dieter F. Giefing, Jorn Erler

Turkish Journal of Agriculture and Forestry

No abstract provided.

If It Pays, It Stays - Rewarding Private Forest Landowners, Steven H. Bullard

Faculty Publications

Article discusses monetizing the "ecosystem services" provided by private landowner forests. It discusses the potential of "workable vehicles" for rewarding landowners of private forest landowners for the many benefits their forests provide.

Stereo Photo Series For Estimating Natural Fuels In The Netherlands Volume 3: Veen, Brian P. Oswald

Faculty Publications

The photo series is a collection of photos and associated field data representing a region of The Netherlands. Volume 3 includes peatland vegetation types located in Northumberland National Park in England. These sites were used to represent those found in The Netherlands since peatlands in the UK are larger and thereby better for the field research. For each vegetation type, sites were sampled with varying fuel loads. The description of the sites consists of a wide-angle site photo, supplemented with field data on the various fuel loads and vegetative layers. The photo series is an important ecological tool to assess …

Loblolly Pine Growth Patterns On Reclaimed Mineland: Allometry, Biomass, And Volume, Jeremy Priest, Jeremy Stovall, Dean Coble, Brian Oswald, Hans Williams

Faculty Publications

Surface lignite coal mines in east Texas are commonly reforested using loblolly pine (Pinus taeda L.) following mining and reclamation activities. Due to the nature of such an extreme disturbance, altered growth patterns, growth rates, and productivity could be expected. We destructively sampled above- and belowground tissue to develop prediction equations specific to these sites. These prediction equations differed statistically from those found in the literature regarding unmined land. At the stand level, biomass and volume productivity appeared similar with young stands on reclaimed mineland performing slightly poorer than similarly managed unmined sites. Allometric partitioning of above- and belowground biomass …

Decomposition Of Three Common Moist-Soil Managed Wetland Plant Species, Daniel P. Collins, Warren C. Conway, Corey D. Mason, Jeffrey W. Gunnels

Faculty Publications

Moist-soil wetland management is used to precisely control delivery, duration, and timing of water addition to, and removal from, managed wetlands with targeted responses including germination and growth of desirable moist-soil plant species. Similarly, water delivery and removal drives decomposition of moist-soil plants as well as nutrient cycling within these systems, which is a key driver of productivity in such managed wetlands. Through deployment of litter bags, we examined rate of mass loss and decay coefficients of three locally abundant moist-soil annual species that are potentially valuable wintering-waterfowl food sources (nodding smartweed Persicaria lapathifolia, red-rooted flatnut sedge Cyperus erythrorhizos …