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Articles 121 - 150 of 161

Full-Text Articles in Forest Sciences

Effects Of Regeneration Opening Size And Simulated Crop Tree Release On Volume Yields And Economic Value In Oak-Dominated Stands, Russell Andrew Cunningham Jan 2014

Effects Of Regeneration Opening Size And Simulated Crop Tree Release On Volume Yields And Economic Value In Oak-Dominated Stands, Russell Andrew Cunningham

Theses and Dissertations--Forestry and Natural Resources

Patch clearcutting can be put to effective use for landowners with relatively small stands of timber. This project was designed to determine how clearcut opening size and mid-rotation crop tree release affects the value and volume of sawtimber at the end of rotation. In 1960 patch clearcuts were established in three different diameters, 50ft (.05ac), 150ft (.41ac), and 250ft (1.13ac). Current stand data (2011) was collected to determine trees per acre, basal area, average tree diameter, volume, and value. These data were input into a growth simulator to determine future trees per acre, basal area, average tree diameter, volume, and …

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Monitoring The Influence Of Acid Deposition On Soil And Implications To Forest Health In The Daniel Boone National Forest, Tyler M. Sanderson Jan 2014

Monitoring The Influence Of Acid Deposition On Soil And Implications To Forest Health In The Daniel Boone National Forest, Tyler M. Sanderson

Theses and Dissertations--Forestry and Natural Resources

Combustion of fossil fuels has contributed to many environmental problems including acid deposition. The Clean Air Act (CAA) was created to reduce ecological problems by cutting emissions of sulfur and nitrogen. Reduced emissions and rainfall concentrations of acidic ions have been observed since the enactment of the CAA, but soils continue to receive some acid inputs. Soils sensitive to acid deposition have been found to have low pH, a loss of base cations and a shift in the mineral phase controlling the activity of Al3+ and/or SO42-. If inputs continue, soil may be depleted of base …

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Effects Of Reproductive Condition, Roost Microclimate, And Weather Patterns On Summer Torpor Use By A Vespertilionid Bat, Joseph S. Johnson, Michael J. Lacki Dec 2013

Effects Of Reproductive Condition, Roost Microclimate, And Weather Patterns On Summer Torpor Use By A Vespertilionid Bat, Joseph S. Johnson, Michael J. Lacki

Forestry and Natural Resources Faculty Publications

A growing number of mammal species are recognized as heterothermic, capable of maintaining a high-core body temperature or entering a state of metabolic suppression known as torpor. Small mammals can achieve large energetic savings when torpid, but they are also subject to ecological costs. Studying torpor use in an ecological and physiological context can help elucidate relative costs and benefits of torpor to different groups within a population. We measured skin temperatures of 46 adult Rafinesque's big-eared bats (Corynorhinus rafinesquii) to evaluate thermoregulatory strategies of a heterothermic small mammal during the reproductive season. We compared daily average and minimum skin …

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Upland Habitat Quality And Historic Landscape Composition Influence Genetic Variation Of A Pond-Breeding Salamander, Stephen C. Richter, Steve J. Price, Chelsea S. Kross, Jeremiah R. Alexander, Michael E. Dorcas Sep 2013

Upland Habitat Quality And Historic Landscape Composition Influence Genetic Variation Of A Pond-Breeding Salamander, Stephen C. Richter, Steve J. Price, Chelsea S. Kross, Jeremiah R. Alexander, Michael E. Dorcas

Forestry and Natural Resources Faculty Publications

Understanding the temporal and spatial scale at which habitat alteration impacts populations is important for conservation and management. Amphibians have declined more than other vertebrates, and pond-breeding species are particularly susceptible to habitat loss and fragmentation because they have terrestrial and aquatic life stages. One approach to management of pond-breeding species is protection of core upland habitat surrounding the breeding pond. We used genetic variation as an indicator of population status in a common amphibian species, spotted salamanders (Ambystoma maculatum), to determine how amount of suitable upland habitat relates to population status in the greater Charlotte, North Carolina, …

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Kentucky Forestry Economic Impact Report 2012-2013, Jeff Stringer, Billy Thomas, Bobby Ammerman, Alison Davis May 2013

Kentucky Forestry Economic Impact Report 2012-2013, Jeff Stringer, Billy Thomas, Bobby Ammerman, Alison Davis

Kentucky Forestry Economic Impact Reports

Kentucky plays a pivotal role in providing forest products to the U.S. and the forestry sector is a major economic force in the Commonwealth providing over 51,000 jobs and $9.9 billion to Kentucky’s economy in 2012. This economic input was generated from 708 facilities located in 109 of Kentucky’s 120 counties including a wide range of industries from logging and sawmills to cabinet manufacturers and paper and producers. In 2012 Kentucky was one of the largest producers of hardwood timber with over 590 million board feet of sawlogs and over 900,000 tons of pulpwood harvested from private family-owned forests. This …

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Effects Of Streamside Management Zone Timber Harvest On Salamander Communities In Robinson Forest, Thomas Maigret Jan 2013

Effects Of Streamside Management Zone Timber Harvest On Salamander Communities In Robinson Forest, Thomas Maigret

Theses and Dissertations--Forestry and Natural Resources

Salamanders are critical components of forest ecosystems, in terms of total biomass, as well as for their value as indicators of ecosystem stress. Considering the worldwide decline in amphibian populations, the known effects of timber harvest on salamander populations, and the importance of the forest products industry in Kentucky and elsewhere, the impacts of silvicultural operations on salamander communities cannot be overlooked. The objective was to investigate the effects of three different silvicultural treatments, each involving different streamside management zone (SMZ) characteristics, on salamander communities in ephemeral streams. Data were collected by regular checks of pitfall traps, coverboards, and transect …

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Forest Harvest Equipment Movement And Sediment Delivery To Streams, Daniel Whiteside Bowker Jan 2013

Forest Harvest Equipment Movement And Sediment Delivery To Streams, Daniel Whiteside Bowker

Theses and Dissertations--Forestry and Natural Resources

Streamside management zones (SMZs) have become important management techniques to prevent the introduction of sediment to stream networks. This study examined the current Kentucky best management practice (BMP) guidelines for SMZs by outfitting mobile forest harvest equipment with global positioning system (GPS) receivers, enabling modeling of equipment traffic and spatial analysis of stream sediment delivery. Three SMZ configurations were implemented during commercial timber harvest, along with four different techniques of crossing ephemeral channels, in order to determine where and why sediment was introduced to the stream network. Results indicate that increasing the SMZ buffer width leads to decreased sediment delivery, …

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Carbon Life-Cycle And Economic Analysis Of Forest Carbon Sequestration And Woody Bioenergy Production, Prativa Shrestha Jan 2013

Carbon Life-Cycle And Economic Analysis Of Forest Carbon Sequestration And Woody Bioenergy Production, Prativa Shrestha

Theses and Dissertations--Forestry and Natural Resources

Sequestering carbon in standing biomass, using woody bioenergy, and using woody products are the three potential ways to utilize forests in reducing greenhouse gases (GHGs) and mitigating climate change. These forestry related strategies are, however, greatly influenced by the existing markets and market based policies. This study focuses on the first two forest strategies. It investigates the combined impact of carbon and woody bioenergy markets on two different types of forests in the US – oak dominated mixed hardwood forests in the Central Hardwood Forests Region and loblolly pine forests in the southeastern US. A modification of the Harman model …

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Factors Influencing The Establishment And Survival Of Native Hardwood Tree Seedlings Of The Kentucky Inner Bluegrass Blue Ash-Oak Savanna-Woodland, James D. Shaffer Jan 2013

Factors Influencing The Establishment And Survival Of Native Hardwood Tree Seedlings Of The Kentucky Inner Bluegrass Blue Ash-Oak Savanna-Woodland, James D. Shaffer

Theses and Dissertations--Biology

Historically, the Kentucky Inner Bluegrass blue ash-oak savanna-woodland was the primary ecosystem of the Inner Bluegrass Region (IBR) of Kentucky. After European settlement, the majority (>99%) of Bluegrass savanna was converted to agricultural and urban land uses. Currently remnant savanna tree species are failing to recruit. Therefore, a long-term restoration ecology project researching competition and disturbance on seedling establishment, survival, and growth has been established at Griffith Woods (the largest remaining savanna in Kentucky) in Harrison Co., KY. Fourteen native hardwood tree species (a total of 6,168 seedlings) have been experimentally planted. Light, soil, surrounding vegetation, and herbivory, factors …

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Frequent Arousals From Winter Torpor In Rafinesque's Big-Eared Bat (Corynorhinus Rafinesquii), Joseph S. Johnson, Michael J. Lacki, Steven C. Thomas, John F. Grider Nov 2012

Frequent Arousals From Winter Torpor In Rafinesque's Big-Eared Bat (Corynorhinus Rafinesquii), Joseph S. Johnson, Michael J. Lacki, Steven C. Thomas, John F. Grider

Forestry and Natural Resources Faculty Publications

Extensive use of torpor is a common winter survival strategy among bats; however, data comparing various torpor behaviors among species are scarce. Winter torpor behaviors are likely to vary among species with different physiologies and species inhabiting different regional climates. Understanding these differences may be important in identifying differing susceptibilities of species to white-nose syndrome (WNS) in North America. We fitted 24 Rafinesque’s big-eared bats (Corynorhinus rafinesquii) with temperature-sensitive radio-transmitters, and monitored 128 PIT-tagged big-eared bats, during the winter months of 2010 to 2012. We tested the hypothesis that Rafinesque’s big-eared bats use torpor less often than values …

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Improving Woody Biomass Estimation Efficiency Using Double Sampling, David L. Parrott, John M. Lhotka, Songlin Fei, B. Scott Shouse May 2012

Improving Woody Biomass Estimation Efficiency Using Double Sampling, David L. Parrott, John M. Lhotka, Songlin Fei, B. Scott Shouse

Forestry and Natural Resources Faculty Publications

Although double sampling has been shown to be an effective method to estimate timber volume in forest inventories, only a limited body of research has tested the effectiveness of double sampling on forest biomass estimation. From forest biomass inventories collected over 9,683 ha using systematic point sampling, we examined how a double sampling scheme would have affected precision and efficiency in these biomass inventories. Our results indicated that double sample methods would have yielded biomass estimations with similar precision as systematic point sampling when the small sample was ≥ 20% of the large sample. When the small to large sample …

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Spatial Prioritization For Invasive Plant Management, Abraham Michael Levin-Nielsen Jan 2012

Spatial Prioritization For Invasive Plant Management, Abraham Michael Levin-Nielsen

Theses and Dissertations--Forestry and Natural Resources

Invasive exotic plant species have been recognized as serious threats to ecosystems. Extensive research on invasive exotic plant species has primarily focused on the impacts, characteristics, and potential treatments. Decision tools and management models that incorporate these findings often lack input from managers and have limited use in differing invasion scenarios. Therefore, in this study, I created a scientifically-driven framework that incorporates expert input to prioritize watersheds for management within the Inner Bluegrass region of Kentucky. The widely distributed invasive exotic plant Amur honeysuckle (Lonicera maackii) was used as an example species. The framework is built around the Analytic Hierarchy …

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Modeling Movement Behavior And Road Crossing In The Black Bear Of South Central Florida, Joseph Maddox Guthrie Jan 2012

Modeling Movement Behavior And Road Crossing In The Black Bear Of South Central Florida, Joseph Maddox Guthrie

Theses and Dissertations--Forestry and Natural Resources

We evaluated the influence of a landscape dominated by agriculture and an extensive road network on fine-scale movements of black bears (Ursus americanus) in south-central Florida. The objectives of this study were to (1) define landscape functionality including corridor use by the directionality and speed of bear movements, (2) to develop a model reflecting selected habitat characteristics during movements, (3) to identify habitat characteristics selected by bears at road-crossing locations, and (3) to develop and evaluate a predictive model for road-crossing locations based on habitat characteristics. We assessed models using GPS data from 20 adult black bears (9 …

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Economic And Policy Implications Of Forest-Based Bioenergy Production In Kentucky, Jonathan Franklin Catron Jan 2012

Economic And Policy Implications Of Forest-Based Bioenergy Production In Kentucky, Jonathan Franklin Catron

Theses and Dissertations--Forestry and Natural Resources

Interest in using woody biomass from forestlands for energy production has reemerged in recent years. In Kentucky, bioenergy has great potential to help reduce reliance on fossil fuels. However, questions still remain about economic and other social effects associated with forest-based bioenergy production. This study investigates some of the economic implications of harvesting woody biomass for bioenergy production alongside traditional forest products in Kentucky. Results show that forest-based bioenergy can increase financial return to nonindustrial private forest owners. This study also investigates social impacts and drivers of forest-based bioenergy in Kentucky. Results indicate that a variety of issues will have …

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Private Landowner Intent To Supply Forest Biomass For Energy In Kentucky, Zachary John Leitch Jan 2012

Private Landowner Intent To Supply Forest Biomass For Energy In Kentucky, Zachary John Leitch

Theses and Dissertations--Forestry and Natural Resources

The Commonwealth of Kentucky is taking steps to expand bioenergy production in response to federal policy initiatives as well as environmental and energy security concerns. The success of this industry will be impacted by the supply of feedstock available from private individuals who own a majority (78%) of forest resources in the state. Despite a developing body of bioenergy research, little is known concerning the social availability of forest biomass for energy production. This study measures intent to harvest energy wood among family forest owners using a mail-­‐based survey and tests the effect of educational materials provided to participants. The …

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A Hydrologic Characterization Of Three Headwater Mountain Wetlands In Eastern Kentucky, Usa, Catherine Hoy Jan 2012

A Hydrologic Characterization Of Three Headwater Mountain Wetlands In Eastern Kentucky, Usa, Catherine Hoy

Theses and Dissertations--Forestry and Natural Resources

Three small (< 1 ha) mountain wetlands located in eastern Kentucky, host populations of two rare orchids, the white fringeless orchid, Platanthera integrilabia, and the crested yellow orchid, Platanthera cristata. Recently, concern has arisen about the persistence of the orchids. To better understand these wetlands and determine if hydrology is affecting the orchid populations, a hydrologic characterization study was initiated in 2009. Each wetland was equipped with a well nest consisting of piezometers, tensiometers, and a shallow well with a data logging pressure transducer. Chemistry and stable isotopes analysis (deuterium and 18O) of groundwater and precipitation were analyzed, and soil, topographic and channel cross-section surveys were conducted. Hydrology data suggest the primary source of water …

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Effectiveness Of Elevated Skid Trail Headwater Stream Crossings In The Cumberland Plateau, Christopher D. Reeves Jan 2012

Effectiveness Of Elevated Skid Trail Headwater Stream Crossings In The Cumberland Plateau, Christopher D. Reeves

Theses and Dissertations--Forestry and Natural Resources

One of the primary concerns associated with timber harvesting is the production of sediments from stream crossings. While research has shown that using improved haul road crossings can mitigate sediment production in perennial streams compared to the use of unimproved crossings little research has been undertaken on temporary skidder crossings of headwater streams, a situation common to a significant percentage of ground skidding operations. This experiment consisted of a controlled replicated testing of the effectiveness of four types of temporary skidder stream crossings (unimproved ford, corrugated culvert, wood panel skidder bridge, and PVC pipe bundle) relative to bedload and suspended …

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Socio-Economic Study Of Community Forests In Mid Hills Region Of Nepal, Birendra K.C. Jan 2012

Socio-Economic Study Of Community Forests In Mid Hills Region Of Nepal, Birendra K.C.

Theses and Dissertations--Forestry and Natural Resources

This research looks at some issues confronting community forestry in Nepal. Analytic Hierarchy Process (AHP) was used to analyze the issues confronting community forestry in mid hills region of Nepal. Results indicate that experts as well as local community users think positive aspects of community forestry to be more important than its negative aspects. In addition, through the comparison of three forest types, Alnus nepalensis found to be the most important forest type for conservation and Schima-Castanopsis to be the most important forest type for local benefits. Similarly, results also indicate that increase in carbon prices lengthen an optimal rotation …

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Effects Of Midstory Removal And Shoot Clipping On The Growth And Development Of Three Oak Species, Jared Matthew Craig Jan 2012

Effects Of Midstory Removal And Shoot Clipping On The Growth And Development Of Three Oak Species, Jared Matthew Craig

Theses and Dissertations--Forestry and Natural Resources

Problems developing tall oak seedlings of high abundance have become a concern throughout many eastern hardwood forests. The decline in oak seedling recruitment into canopy positions is often attributed to the increasing abundance of shade tolerant midstory species, especially red maple (Acer rubrum L.). Studies have shown that increasing light to the understory by way of a midstory removal has the ability to favor oak seedlings over competitors. The majority of studies to date have examined northern red (Quercus rubra L.) and cherrybark oak (Quercus pagoda Raf.) on productive sites, but relatively little is …

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A Comparison Of Noninvasive Survey Methods For Monitoring Mesocarnivore Populations In Kentucky, Bryan Matthew Tom Jan 2012

A Comparison Of Noninvasive Survey Methods For Monitoring Mesocarnivore Populations In Kentucky, Bryan Matthew Tom

Theses and Dissertations--Forestry and Natural Resources

Harvest data are typically used to evaluate mesocarnivore population dynamics in many states, including Kentucky. While relatively easy to collect, these data are subject to reporting biases, and inferences about population trends can often only be made at coarse spatial scales. Gray fox (Urocyon cinereoargenteus), bobcat (Lynx rufus), and coyote (Canis latrans) populations in Kentucky are managed primarily through harvest data used to establish future harvest quotas. Increasingly, noninvasive survey methods have been used to characterize a number of population parameters for a variety of species; however, successful use of these methods is often …

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Control And Passive Treatment Of Runoff From Horse Muck Storage Structures Using Rain Gardens, Hillary K. Otte Jan 2012

Control And Passive Treatment Of Runoff From Horse Muck Storage Structures Using Rain Gardens, Hillary K. Otte

Theses and Dissertations--Forestry and Natural Resources

Runoff from livestock operations may contain a variety of pathogens and high levels of nutrients and other harmful contaminants, and is of particular concern in central Kentucky as watersheds are threatened by waste generated from a high concentration of equine activity. Rain gardens are a type of stormwater management tool used to capture and passively treat runoff. This project aimed to incorporate rain gardens into the horse muck storage structures at a thoroughbred facility in the Canr Run watershed in Lexington, Kentucky. Water quality data from soil water within two rain garden muck pads and two control pads, and grab …

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Development And Deployment Of A Bioreactor For The Removal Of Sulfate And Manganese From Circumneutral Coal Mine Drainage, C. B. Mastin, J. D. Edwards, Christopher D. Barton, Anastasios D. Karathanasis, Carmen T. Agouridis, Richard C. Warner Jan 2012

Development And Deployment Of A Bioreactor For The Removal Of Sulfate And Manganese From Circumneutral Coal Mine Drainage, C. B. Mastin, J. D. Edwards, Christopher D. Barton, Anastasios D. Karathanasis, Carmen T. Agouridis, Richard C. Warner

Forestry and Natural Resources Faculty Publications

Surface mining, in the form of contour mining and mountain-top removal, is a common means for retrieving coal in the Appalachian Coal Belt region of Kentucky. Overburden or excess spoil generated by these two methods is placed in valley fills. Traditionally Constructed fills have been shown to adversely impact headwater ecosystems via stream burial and through alterations to the hydrology, sediment supply, water quality and biological composition of downstream reaches. Mine drainages emanating from the toe of valley fills often contain elevated levels of total dissolved solids and heavy metals. Drainage chemistry from Guy Cove, a valley fill located in …

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Foraging And Roosting Behaviors Of Rafinesque's Big-Eared Bat (Corynorhinus Rafinesquii) At The Northern Edge Of The Species Range, Joseph S. Johnson Jan 2012

Foraging And Roosting Behaviors Of Rafinesque's Big-Eared Bat (Corynorhinus Rafinesquii) At The Northern Edge Of The Species Range, Joseph S. Johnson

Theses and Dissertations--Animal and Food Sciences

Bat populations in the eastern United States are currently declining at unprecedented rates as a result of habitat loss, commercial wind energy development, and white-nose syndrome. Effective conservation of these declining populations requires knowledge of several aspects of summer and winter ecology, including daytime habitat use (day-roost selection and social behaviors), nocturnal habitat use (foraging habitat selection, prey selection, and prey abundance), and winter hibernation (torpor) patterns. This dissertation addresses these questions for Rafinesque’s big-eared bat (Corynorhinus rafinesquii), a species of conservation concern in the southeastern United States. Kentucky represents the northern edge of the range of Rafinesque’s …

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An Exotic Invader Threatens An Ecologically Sensitive Bluegrass Savanna Remnant, R. Murphy Coy Nov 2011

An Exotic Invader Threatens An Ecologically Sensitive Bluegrass Savanna Remnant, R. Murphy Coy

Kaleidoscope

No abstract provided.

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Status Of A Reintroduced Black Bear Population In The Big South Fork Area Of Kentucky, Sean Mccarthy Murphy Jan 2011

Status Of A Reintroduced Black Bear Population In The Big South Fork Area Of Kentucky, Sean Mccarthy Murphy

Theses and Dissertations--Forestry and Natural Resources

Large carnivores have been subjected to overexploitation and extensive habitat loss for centuries. Reintroduction has become an increasingly used tool for recovering and reestablishing large carnivore populations; however, most reintroductions have either failed or resulted in small populations that are vulnerable to deleterious demographic, environmental, and genetic effects that can lead to population loss or extinction. Longterm monitoring of small, reintroduced populations is critical to population persistence and viability. To evaluate long-term reintroduction success and current status of a recently reintroduced, small black bear (Ursus americanus) population in the Big South Fork area of Kentucky, I used non-invasive …

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Initial Response Of Invasive Exotic Plant Species To Timber Harvesting In Southeastern Kentucky Forests, Kevin Patrick Devine Jan 2011

Initial Response Of Invasive Exotic Plant Species To Timber Harvesting In Southeastern Kentucky Forests, Kevin Patrick Devine

University of Kentucky Master's Theses

The responses of invasive exotic plant species (IES) to silvicultural treatments one growing season after timber harvesting were examined in the Cumberland Plateau region of Southeastern Kentucky. Treatments included a commercial deferment harvest and unharvested control applied to five watersheds within University of Kentucky’s Robinson Forest. The effects of harvesting were compared between treatments and between preharvest and postharvest samplings. The spatial distribution and abundance of targeted IES throughout forest sites and trail systems were calculated from several sampling schemes. Additional analyses were performed to quantify forest disturbances derived from harvest activities to determine the relationships between soil, light levels, …

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Effects Of Midstory Removal On Black Oak (Quercus Velutina) And White Oak (Quercus Alba) Regeneration, David Lee Parrott Jan 2011

Effects Of Midstory Removal On Black Oak (Quercus Velutina) And White Oak (Quercus Alba) Regeneration, David Lee Parrott

University of Kentucky Master's Theses

The formation of dense understories in eastern forests has created low light environments that hinder the development of advance oak reproduction. Studies have shown that a midstory removal can enhance these light conditions and promote the development of competitive oak seedlings. Previous studies have been primarily focused on oaks found on productive sites, and there is little knowledge of this treatment’s potential on intermediate sites and the typically associated oak species. This study investigates the seven-year effects of midstory removal on natural and underplanted white (Quercus alba L.) and black oak (Quercus velutina L.) reproduction, as …

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Genetic Diversity, Structure, And Recolonization Patterns Of Kentucky Black Bears, John Tyler Hast Jan 2010

Genetic Diversity, Structure, And Recolonization Patterns Of Kentucky Black Bears, John Tyler Hast

University of Kentucky Master's Theses

After nearly a century of absence, the black bear (Ursus americanus) reappeared in Kentucky during the late 20th century and has since increased in number. Recolonization of bears in the southeastern portion of the state was thought to have been caused by emigration of bears from adjacent states into the Commonwealth, while in the south-central area, bears originated, or natural recolonization may have been supplemented by the translocation of 14 individuals into the Big South Fork National River Recreation Area. To investigate the recolonization patterns of bears in Kentucky, I used 20 microsatellite loci to determine the genetic …

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Two Year Response Of A Woody Biofuel Plantation To Intensive Management On A Reclaimed Surface Mine In Eastern Kentucky, Joshua Scott Brinks Jan 2010

Two Year Response Of A Woody Biofuel Plantation To Intensive Management On A Reclaimed Surface Mine In Eastern Kentucky, Joshua Scott Brinks

University of Kentucky Master's Theses

The establishment of intensively managed woody energy crops on reclaimed surface mine lands provides an opportunity to diversify domestic biomass sources, while increasing the productivity and economic value of underutilized land. Our objective is to test the effect of fertilization and irrigation on the growth, survival, biomass accumulation, biomass allocation, leaf area, and nutrient dynamics of American sycamore (Platanus occidentalis L.) and black locust (Robinia pseudoacacia L.) planted on a reclaimed surface mine. In 2008, replicated plantings of sycamore and black locust were established on the Big Elk mine in eastern Kentucky. Treatments tested include annual granular fertilizer …

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Exotic Invasive Plants In Kentucky, Yu Liang Jan 2010

Exotic Invasive Plants In Kentucky, Yu Liang

University of Kentucky Master's Theses

Invasion of exotic species is a significant problem in natural ecosystems, reaching epidemic proportions and resulting in significant economic losses. However, insufficient knowledge of explicit spatial distribution of invasive species hinders our ability to prevent and/or mitigate future invasion. In this study, we demonstrate the use of existing voluntary data to survey invasive plant species in Kentucky. We also reconstructed the historical distribution of 16 exotic invasive plants typical to Kentucky using herbarium records. We found that Kentucky is facing a large threat from exotic invasive plants as they are reported throughout most counties. The distribution maps for four of …

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