Global ETD Search
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Showing 1 to 11 of 11 for “"Plethodon cinereus"”.
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A Comparison of Limb Development of the Salamanders Plethodon Cinereus and Ambystoma Mexicanum
… development of both limb pairs in the species Plethodon cinereus and Ambystoma mexicanum are compared. Using histology and microCT on embryonic and juvenile specimens, there are few observable differences in the relative order of skeletal element appearance, and both species exhibit preaxial …
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Comparison of herpetofaunal species composition and response to edge on the Camp Dawson Collective Training Area, Preston County, West Virginia
… and also from area searches. Redback salamander (Plethodon cinereus), red-spotted newt (Notophthalmus v. viridescens ), eastern American toad (Bufo a. americanus), and wood frog (Rana sylvatica) were most common in pitfall arrays; mountain dusky salamander (Desmognathus ochrophaeus), Appalachian …
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Effects of Timber Harvesting on Terrestrial Salamander Abundance and Behavior
… from 1.3 to 11.7% of the population for redback (Plethodon cinereus) and slimy salamanders (P. glutinosus). Timber harvest caused up to a 2-fold increase or decrease in activity rates. There was evidence for bias in the night census method, but differences were not consistent enough to suggest …
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SYNTOPIC COEXISTENCE AND HABITAT USAGE IN TWO MORPHOLOGICALLY SIMILAR PLETHODON SPECIES
… from large areas. In Hoosier National Forest, Plethodon cinereus and P. dorsalis coexist broadly and appear to share the same microhabitats. A number of factors might explain this unique case of coexistence. P. cinereus is more common in drier habitats and becomes more predominant as spring …
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Interacting effects of temperature and food on early growth of two plethodontid salamanders
… the growth of young-of-the-year and juvenile plethodontid salamanders with different life cycles, Plethodon cinereus (direct development) and Eurycea cirrigera (metamorphosis). Specifically, I was interested in examining the response of growth trajectories to different temperatures and food …
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Individual and Interactive Effects of Maternally- and Trophically-Derived Mercury on Early Amphibian Development
… and occupying different ecological niches (Plethodon cinereus, Eurycea bislineata, and Bufo americanus) can bioaccumulate sufficient levels of Hg to warrant concern (Chapter 2) and female Bufo americanus transfer accumulated Hg to their eggs (Chapter 3). Maternal transfer of contaminants is …
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The role of red-backed salamanders in ecosystems
… to test the role of red-backed salamanders (Plethodon cinereus) in forested ecosystems. I examined the effects of salamanders on five 314-m² plots with reduced salamanders and five reference plots. I found no evidence that salamanders affected litter or wood decomposition rates, nitrogen …
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The influence of probability of detection when modeling species occurrence using GIS and survey data
… I experimented with red-backed salamanders (Plethodon cinereus) using daytime, cover-object searches and nighttime, visual surveys. Salamanders were maintained in enclosures (n = 124) assigned to four treatments, daytime__low density, daytime__high density, nighttime__low density, and …
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Soil resource heterogeneity and site quality in Southern Appalachian hardwood forests: Impact of decomposing stumps, geology and salamander abundance
… to evaluate how eastern red-backed salamanders (Plethodon cinereus) affect N-availability. For the stump study, results show that decomposing stumps occupy approximately 1.2% of the total soil volume and constitute 4% and 10% of total soil N and C pools. Significant differences in N (p = 0.0114), …
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Effects of Forest Regeneration Methods on Salamander Populations in Central Appalachia
… analysis for eastern red-backed salamanders (Plethodon cinereus) and modeled population growth to evaluate the contribution of demographic parameters to population recovery. These analyses indicated that adult survival was the parameter with the greatest influence on the population growth rate …
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The influence of silvicultural manipulations on plethodontid salamanders
… I examine how experimental silviculture impacts plethodontid salamander relative abundance and count, and I compare three different body condition indices. Chapter 1 focuses on plethodontid salamander relative abundance 30 years after experimental treatments (including clearcut and shelterwood …