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- <p>Catostomidae – Ohio River.</p> (1)
- <p>Green frog – Ecology – West Virginia.</p> (1)
- <p>Salamanders -- West Virginia.</p> <p>Gyrinophilus -- West Virginia.</p> (1)
- <p>Salamanders – Ecology – West Virginia.</p> (1)
- <p>Salamanders – Feeding and feeds.</p> <p>Ecology – Effect of pesticides on.</p> (1)
Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
The Impact Of Resident And Transient Predators On The Popultation Dynamics Of Juvenile Caribbean Spiny Lobster (Panulirus Argus) In Florida Bay, Florida, Jason Edward Schratwieser
The Impact Of Resident And Transient Predators On The Popultation Dynamics Of Juvenile Caribbean Spiny Lobster (Panulirus Argus) In Florida Bay, Florida, Jason Edward Schratwieser
Biological Sciences Theses & Dissertations
There has been a considerable amount of research devoted to exploring the relationship between predators and prey, but many of these studies fail to address how predation can vary over spatial and temporal scales. The tendency of ecologists to model predation as a static entity often masks its capacity for creating distinctive effects in prey populations and communities. Most predation studies also focus on the effect of a single species of predator on a prey population, an unrealistic situation in nature. In the Florida Keys, juvenile spiny lobsters are subjected to two general classes of predators: i) "resident" predators such …
Ecology And Population Demography Of The Hellbender, Cryptobranchus Alleganiensis, In West Virginia, W. Jeffrey Humphries
Ecology And Population Demography Of The Hellbender, Cryptobranchus Alleganiensis, In West Virginia, W. Jeffrey Humphries
Theses, Dissertations and Capstones
Using mark-recapture, I studied the population demography and habitat use of the hellbender, Cryptobranchus alleganiensis, in the West Fork of the Greenbrier River, Pocahontas County, West Virginia. Eighteen nocturnal surveys were conducted between April and October, 1998, during which 29 hellbenders were implanted with permanent tags. Male to female sex ratio was 1.06:1. Hellbenders were sexually dimorphic, as females were significantly longer and heavier than males. Total lengths for all captured animals ranged from 29.5 - 56.5 cm and mass ranged from 150.0 - 905.8 g. Seasonal linear movements for 12 individuals ranged from 0.8 - 70.2 m (mean …
Feeding Niches Of Forest Salamanders: Indirect Effects Of Gypsy Moth Pesticides On Prey Selection And Potential Overlap Between Adults Of Six Species, Sandra Raimondo
Feeding Niches Of Forest Salamanders: Indirect Effects Of Gypsy Moth Pesticides On Prey Selection And Potential Overlap Between Adults Of Six Species, Sandra Raimondo
Theses, Dissertations and Capstones
Amphibian declines and deformities are indictors of pollution and other environmental impacts. Pesticides, such as Bacillus thuringiensis var. kurstaki (Bt), may produce non-target effects on salamanders by impacting their food supply, ultimately resulting in population declines. Salamanders were used as an assessment tool of pesticide impacts before populations decline. Diet analysis determined if Bt affected food consumption of two salamander species (Desmognathus ochrophaeus and P. cinereus). Nine plots in the Monongahela National Forest, West Virginia were used in this study. Three plots were sprayed with Bt in 1997 and 1998, three were sprayed with a gypsy moth …
Distribution Of The Sucker Family (Pisces: Catostomidae) In The Ohio River, Tara L. Rose
Distribution Of The Sucker Family (Pisces: Catostomidae) In The Ohio River, Tara L. Rose
Theses, Dissertations and Capstones
The family Catostomidae represents a major component of the fish fauna in the Ohio River. Because of their abundance, large biomass, and susceptibility to environmentally-induced anomalies, suckers are expected to significantly influence the Ohio River Fish Index (ORFIn), a biological index being developed by the Ohio River Valley Water Sanitation Commission (ORSANCO) for large river systems. To correctly interpret information obtained from ORFIn, the impact of suckers upon the index must be thoroughly understood, including relative importance and uneven spatial distribution of Ohio River suckers. In this study, suckers represented 7.1 percent of the total fish captured and 36.6 percent …
Ecology And Natural History Of Rana Clamitans Melanota In West Virginia, Alison M. Rogers
Ecology And Natural History Of Rana Clamitans Melanota In West Virginia, Alison M. Rogers
Theses, Dissertations and Capstones
Fourteen study sites were sampled with aquatic funnel traps and D-frame net sweeps in the plateau and mountain region of West Virginia to determine differences in larval period. Larval stage class abundance and larval total length and mass measurements were recorded from February to December 1997. Larval stage classes 25 and 26, the first free living stages, were absent from the plateau region from February to April, but were present in the mountain region. Pre-transformation larval stages, 40 through 44, were found from May through October, and peaked in July. Significant relationships were found with simple linear regression analysis between …
Natural History Of The Northern Spring Salamander Gyrinophilus Porphyriticus Porphyriticus At The Westvaco Wildlife And Ecosystem Research Forest In Randolph County, West Virginia, Brian A. Lindley
Theses, Dissertations and Capstones
The purpose of this thesis research was to study the natural history of the northern spring salamander Gyrinophilus p. porphyriticus in West Virginia. The objectives of this study were to determine the environmental characteristics of the habitat of Gyrinophilus p. porphyriticus, to determine its reproductive biology, and then examine non-reproductive aspects of the natural history of the species. Study sites were located at the Westvaco Wildlife and Ecosystem Research Forest (WWERF) in Randolph County, West Virginia. Four sites on three streams were divided into two 25m transects. All sites were examined once each month from August 1997 through November 1998 …