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- <p>Cricket frogs - West Virginia - Morphology.</p> <p>Blanchard's cricket frog.</p> (1)
- <p>Northern leopard frog -- Ecology -- West Virginia.</p> <p>Northern leopard frog -- Habitat -- West Virginia.</p> (1)
- <p>Reptiles - Habitat - West Virginia.</p> <p>Amphibians - Habitat - West Virginia.</p> <p>Pond animals.</p> <p>Pond ecology.</p> (1)
- <p>Salamanders - Morphology.</p> <p>Sexual dimorphism (Animals)</p> (1)
- Aeromonas hydrophila (1)
Articles 1 - 8 of 8
Full-Text Articles in Life Sciences
Relationships Between Muskrats And Freshwater Mussels Prior To River Otter Restoration At Mammoth Cave National Park, Kentucky, Kimberly Ann Asmus
Relationships Between Muskrats And Freshwater Mussels Prior To River Otter Restoration At Mammoth Cave National Park, Kentucky, Kimberly Ann Asmus
Masters Theses
The southeastern United States has a great diversity of freshwater mussel species, many of which are threatened with extinction. The muskrat (Ondatra zibethicus) is one of the few animals to extensively prey on freshwater mussels, and it has been implicated in retarding the recovery of, or further threatening, some endangered mussel populations. Muskrat predation on mussels may be significant at Mammoth Cave National Park (MCNP) where a river otter (Lontra canadensis) restoration has been proposed. Anecdotal observations suggest that the reintroduction of river otters dramatically reduces muskrat populations, which, in tum, may reduce the number of …
Biology And Ecology Of Larval Lobsters (Homarus Americanus): Implications For Population Connectivity And Larval Transport, Eric R. Annis
Biology And Ecology Of Larval Lobsters (Homarus Americanus): Implications For Population Connectivity And Larval Transport, Eric R. Annis
Electronic Theses and Dissertations
The connectivity of marine populations and the degree to which they are considered open or closed has important implications for the ecology, management, and resilience of commercially harvested species. Larval exchange is a primary determinant of the level of connectivity between populations, and this thesis examines the intrinsic and extrinsic factors influencing larval transport and the distribution of larvae of the American lobster (Homarus americanus). The potential for larval transport is directly proportional to the planktonic larval duration. Our field data suggest development times in situ were up to three times faster than previous laboratory development times, indicating that potential …
The Movements And Reproductive Success Of Re-Introduced Darters In The Pigeon River, Tn, Virginia Anne Harrison
The Movements And Reproductive Success Of Re-Introduced Darters In The Pigeon River, Tn, Virginia Anne Harrison
Masters Theses
The Pigeon River has a history of degraded water quality that lasted nearly seven decades, from 1908 until the 1970s, thereby resulting in the loss of many native species. In recent years, recovery efforts have been initiated by numerous agencies to re-introduce selected fish and other aquatic species. Three species of darters (gilt darter Percina evides, bluebreast darter Etheostoma camurum, and blueside darter E. jessiae) were re-introduced into the river in 2001-03; re-introduction of a fourth species, the stripetail darter (E. kennicotti) began in 2003. Since 2002, these species have been monitored by snorkel surveys …
Health Impacts Of Polychlorinated Biphenyls (Pcbs) In Aquatic Organisms, Marla Ann Fisher
Health Impacts Of Polychlorinated Biphenyls (Pcbs) In Aquatic Organisms, Marla Ann Fisher
Dissertations
Polychlorinated biphenyls (PCBs) are a major contaminant of global extent in water resources and aquatic biota. Due to its high lipid solubility, PCBs fail to be degraded and, therefore, continue to bioaccumulate throughout the environment and food chain. To determine the impact of PCBs on the immune system ofaged and juvenile Japanese medaka (Oryzias latipes), fish were injected with the coplanar PCB congener 126 and examined after 3 and 14 days. PCB 126 produced oxidative stress in both age groups of fish 14 days post-injection; however, juvenile medaka appeared more susceptible than aged fish. Humoral immunity, as determined by antibody …
Natural History And Sexual Dimorphism Of The Eastern Hellbender, Cryptobranchus A. Alleganiensis, Robert Makowsky
Natural History And Sexual Dimorphism Of The Eastern Hellbender, Cryptobranchus A. Alleganiensis, Robert Makowsky
Theses, Dissertations and Capstones
The Eastern Hellbender’s natural history and morphology was examined. Field studies were done to examine the efficacy of different techniques (focusing on capturing larva) and diet analysis. Lab studies were done to determine if any sexual dimorphism exists in hellbenders using simple measurements (and ratios) and if this dimorphism could be used to reliably determine gender. Field studies were inconclusive due to the inability to find a reliable sample because of record rainfall. Lab studies revealed that a dimorphism does exist for one ratio (TG/TL, P=.048) and for several measurements. These measurements alone were not applicable for determining gender. …
The Ecology And Natural History Of The Northern Leopard Frog, Rana Pipiens Schreber, In West Virginia, William Bradley Sutton
The Ecology And Natural History Of The Northern Leopard Frog, Rana Pipiens Schreber, In West Virginia, William Bradley Sutton
Theses, Dissertations and Capstones
The purpose of this study was to gather ecological and life history data for the Northern Leopard Frog, Rana pipiens Schreber, in West Virginia. In Chapter 1, natural history data, such as morphometrics (larval and adult), dorsal coloration, and emergence time were recorded. In Chapter 2, it was discovered that Aeromonas hydrophila and Pseudomonas ssp. skin infections affecting R. pipiens could be identified using BIOLOG analysis. The scope of Chapter 3 was to analyze habitat partitioning between 3 sympatric anurans (R. pipiens, R. catesbeiana, and R. clamitans melanota). The following habitat partitioning gradient was discovered. Rana …
The Natural History And Morphology Of The Eastern Cricket Frog, Acris Crepitans Crepitans, In West Virginia, Kimberly Ann Bayne
The Natural History And Morphology Of The Eastern Cricket Frog, Acris Crepitans Crepitans, In West Virginia, Kimberly Ann Bayne
Theses, Dissertations and Capstones
Two subspecies of cricket frogs, Acris crepitans blanchardi and Acris crepitans crepitans, historically have occurred in West Virginia. The range of Acris c. blanchardi, Blanchard’s Cricket Frog, begins along the Ohio River extending into West Virginia. The Eastern Cricket Frog, Acris c. crepitans, is found in counties located in the eastern panhandle. The Eastern Cricket Frog is a species of great concern. Two sites where Acris c. crepitans historically occurred, two sites that never contained A. c. crepitans, one historical site that currently has A. c. crepitans, and two new sites that have A. c. crepitans were studied by auditory …
Use Of An Artificial Pond And Marshes By Amphibians And Reptiles In West Virginia, Vanessa A. Dozeman
Use Of An Artificial Pond And Marshes By Amphibians And Reptiles In West Virginia, Vanessa A. Dozeman
Theses, Dissertations and Capstones
A farm pond approximately 40 years old located in Wayne County, West Virginia was studied to determine the ingress and egress of amphibians and reptiles. In addition to the pond, 2 small marshes were also examined. The study extended from February 2003 to November 2003. The pond is approximately 36 m long and 38 m wide and is located on a south-facing hillside at 202 m in elevation. A drift fence composed of landscaping cloth was constructed to completely encircle the site. At every 5.15 m, funnel traps were positioned on both sides of the fence. Traps were checked daily …