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Articles 31 - 40 of 40
Full-Text Articles in Terrestrial and Aquatic Ecology
Biotic Assessment Of Two Central Kentucky Streams: Examining The Effects Of Wastewater Treatment And Anthropogenic Disturbance, Daniel John Ratterman
Biotic Assessment Of Two Central Kentucky Streams: Examining The Effects Of Wastewater Treatment And Anthropogenic Disturbance, Daniel John Ratterman
Online Theses and Dissertations
Globally, anthropogenic disturbance has altered many aquatic habitats, including lotic waters. Flowing, fresh water sustains life on Earth yet suffers the resulting waste products. Native, locally adapted ecosystems integrate or eliminate the byproducts of life. However an increase of human population, poor agricultural practices, accelerated overland runoff, a non-point source of pollution, and wastewater treatment plants (WTP), a point source of pollution, have all placed a strain on the world’s flowing, fresh, waters. The de-commissioning of two WTPs in the Kentucky River basin, and the commissioning of a new WTP in an adjacent watershed, provided an opportunity to examine the …
A Vegetation-Based Index Of Biotic Integrity For Wetlands Of Kentucky, Noelle Newman Smith
A Vegetation-Based Index Of Biotic Integrity For Wetlands Of Kentucky, Noelle Newman Smith
Online Theses and Dissertations
Wetland ecosystems have experienced severe declines across the United States, prompting efforts to assess the status of remaining wetlands and regulate their development. The Clean Water Act and the policy of “No Net Loss” have resulted in a system of permitting and mitigation for impacts to wetlands. Professional judgments of wetland quality are inherent in regulatory decisions related to preservation and mitigation, but many states, and until recently including Kentucky, have no standard, quantifiable means of assessing wetlands to guide the decision process. A rapid assessment method has recently been developed for Kentucky, but there is no intensive assessment method …
Movement Patterns Of The Kentucky Arrow Darter (Etheosotma Spilotum), Frecklebelly Darter (Percina Stictogaster), And Southern Redbelly Dace (Chrosomus Erythrogaster) In Elisha Creek And Gilbert's Big Creek, Red Bird River, Kentucky., Colin Arnold
Online Theses and Dissertations
The movement patterns of small-bodied fishes in headwater streams are poorly understood. This study was designed to examine the movement patterns of the Kentucky Arrow Darter (Etheosotma spilotum), Frecklebelly Darter (Percine stictogaster), and Southern Redbelly Dace (Chrosomus erythrogaster) in two dynamic headwater streams, Elisha Creek and Gilbert's Big Creek, in the Red Bird River, Kentucky, utilizing Passive Integrated Transponders and an antennae detection system. Etheostoma spilotum is listed as a threatened species under the Endangered Species Act. Percina stictogaster is acknowledged as a species of greatest conservation need in Kentucky by the Kentucky Department of Fish and Wildlife Resources. Over …
Wetland Condition Matters: Amphibian Richness And Abundance Change Across Wetland Condition Gradient, Kari Dupler
Wetland Condition Matters: Amphibian Richness And Abundance Change Across Wetland Condition Gradient, Kari Dupler
Online Theses and Dissertations
In the past century, Kentucky has lost more than 80% of its wetlands, and because state-wide monitoring was historically minimal, this number is likely underestimated. The Kentucky Division of Water, with Eastern Kentucky University and a technical working group, developed a rapid wetland assessment method (i.e. KY-WRAM) to assess wetland quality and aid in establishing mitigation levels and long-term monitoring. Validation of the KY-WRAM’s ability to reflect wetland condition requires comparison to intensive biotic assessments of amphibian, plant, and bird communities. Wetland and amphibian surveys for the 2014 and 2015 seasons were conducted at 42 riverine wetlands in the Kentucky …
Reproductive Biology Of Syntopic Blackside Dace And Southern Redbelly Dace In Two Kentucky Streams, Brajaan Hayes
Reproductive Biology Of Syntopic Blackside Dace And Southern Redbelly Dace In Two Kentucky Streams, Brajaan Hayes
Online Theses and Dissertations
When a rare endemic species and an ecologically similar, but more cosmopolitan species share habitat, understanding how they interact with each other is important for conservation efforts. This is especially true if both species rely on the same spawning habitat, which could potentially lead to competitive displacement or hybridization. It is known that the federally threatened Blackside Dace and common Southern Redbelly Dace are ecologically similar species, occur syntopically in Kentucky in the upper Cumberland River basin, and utilize some of the same host species for nest sites; however, it is unclear if the two fish species are spawning site …
Distribution, Movement, And Ecology Of Etheostoma Spilotum (Gilbert), The Kentucky Arrow Darter, In Gilberts Big Creek And Elisha Creek, Red Bird River Basin, Clay And Leslie Counties, Kentucky, Jonathan Bradley Baxter
Distribution, Movement, And Ecology Of Etheostoma Spilotum (Gilbert), The Kentucky Arrow Darter, In Gilberts Big Creek And Elisha Creek, Red Bird River Basin, Clay And Leslie Counties, Kentucky, Jonathan Bradley Baxter
Online Theses and Dissertations
The Kentucky Arrow Darter (KAD), Etheostoma spilotum, is an endemic species to the Upper Kentucky River Basin and is currently proposed for listing as threatened under the Endangered Species Act. The ecology and population status of this benthic species is poorly understood, so this study was designed to investigate the species’ movement capabilities, population dynamics, and overall ecology in two streams (Gilberts Big and Elisha Creek) in the Red Bird Ranger District, Daniel Boone National Forest, Kentucky. Project objectives included quantification of movement patterns, identification of microhabitat use, and estimation of population size in both streams. Sampling was conducted during …
Examining The Impacts Of Valley Fills In Stream Ecosystems On Amphibian And Aquatic Insect Communities In Southeastern Kentucky, John Clayton Bourne
Examining The Impacts Of Valley Fills In Stream Ecosystems On Amphibian And Aquatic Insect Communities In Southeastern Kentucky, John Clayton Bourne
Online Theses and Dissertations
Chapter 1. Abstract: Biodiversity is not evenly distributed, and understanding factors that determine spatial patterns of species diversity remains a key question in ecology. Because of their relatively high abundance and complex life cycles, stream salamanders and aquatic insects are important trophic links and serve a critical role in transferring energy. Despite this importance little research has examined their community structure simultaneously in aquatic ecosystems. The primary objective of this research was to determine the structure of these communities across natural areas of southeastern Kentucky and understand what factors impact their abundances and distributions. To address this, we sampled eight …
Benthic Macroinvertebrate Community Responses To A Headwater Valley Restoration At Slabcamp Creek, Rowan Co., Kentucky, Nicholas Primo Revetta
Benthic Macroinvertebrate Community Responses To A Headwater Valley Restoration At Slabcamp Creek, Rowan Co., Kentucky, Nicholas Primo Revetta
Online Theses and Dissertations
The practice of stream restoration is well underway in the U.S., but there are few quantitative post-restoration studies of macroinvertebrate communities in restored streams in Kentucky. Slabcamp Creek, a first order tributary within the Licking River Basin, was recently restored to improve hydrology and degraded habitat caused by historical land use. The primary goal of my study was to begin baseline studies of the macroinvertebrate community in the restored section of Slabcamp Creek and to compare those findings to White Pine Branch (a pre-restoration control site) during the first post-restoration year. Specific objectives of my study were to: 1) report …
Distributions, Assemblage Structure, And Habitat Associations Of Fishes In Two Streams Of The Red Bird River Watershed, Kentucky, Eric J. Smith
Distributions, Assemblage Structure, And Habitat Associations Of Fishes In Two Streams Of The Red Bird River Watershed, Kentucky, Eric J. Smith
Online Theses and Dissertations
The spatial and temporal variation in fish distribution, assemblage structure, and habitat associations were investigated in relation to the available macrohabitats (riffle, run, or pool) in Gilbert's Big Creek and Elisha Creek, 2nd and 3rd order streams, respectively, located within the Red Bird River watershed in southeastern Kentucky. A total of 7,662 individuals were captured; 3,038 from Gilbert's Big Creek (21 species) and 4,624 from Elisha Creek (19 species). The most prevalent species overall in both streams was the creek chub (Semotilus atromaculatus). Most fish species were distributed in the middle sampling sites in the spring, the lower sites in …
Population Genetics Of Wood Frogs (Lithobates Sylvaticus) In A Forested Ridge-Top Wetland Ecosystem, Jennifer R. Strong
Population Genetics Of Wood Frogs (Lithobates Sylvaticus) In A Forested Ridge-Top Wetland Ecosystem, Jennifer R. Strong
Online Theses and Dissertations
An important aspect of conservation biology is understanding how land-use changes impact biodiversity. Ridge-top wetlands are unique habitat for pond-breeding amphibians and the Daniel Boone National Forest (DBNF) contains natural forested ridge-top wetlands in close proximity to constructed wetlands intermixed across the same landscape. Genetic data can be used to address current population status, probability of persistence, and population connectivity. The objective of this study was to determine the amount and distribution of population genetic diversity of wood frogs in natural ridge-top wetlands and what factors influence this. Genetic data were analyzed for nine microsatellite DNA loci from twenty-five wood …