Age Study of Red Efts (Notophthalmus viridescens viridescens) from a Cannon County, Tennessee Metapopulation

dc.contributor.advisor Miller, Brian en_US Parker, Herschell en_US
dc.contributor.committeemember Klukowski, Matt en_US
dc.contributor.committeemember Mullen, Dennis en_US
dc.contributor.department Biology en_US 2015-08-25T14:38:58Z 2015-08-25T14:38:58Z 2015-06-22 en_US
dc.description.abstract ABSTRACT en_US
dc.description.abstract Many populations of Notophthalmus viridescens viridescens have aquatic larvae that metamorphose into a sexually immature Red Efts that leave the water and are land-dwelling for up to seven years. In 2007 and 2008, fifty-six Red Efts were collected as road kill on Burt-Bergen Road, near the Bradyville Hill Road intersection (latitude, longitude coordinates: 35.795048, - 86.150466) in Cannon County, Tennessee. Snout-vent length of each specimen was measured. The right femur was removed from each specimen and the length of some femurs was measured. All 56 specimens were prepared for skeletochronological analysis; however, femur cross-sections from only 28 specimens were useable. Skeletochronological analysis indicated the most frequent age for this sample of Red Efts was three years; age estimates ranged from two to seven years, and mean age was 3.5 years. Age estimates yielded from this skeletochronology study are consistent with the findings of previous skeletochronology studies of Red Efts. This is the lowest latitude Red Eft sample to date in which skeletochronological age estimates are reported. Pearson product-moment correlations were computed for the following pairs of variables: age and snout-vent length, age and femur length, and snout-vent length and femur length. The resulting correlation coefficients were not significant; however, method of collection (road kill) and precision of measurement (to the nearest millimeter) are believed to account for the lack of significance. Red Eft age and snout-vent length were found to be significantly correlated in previous skeletochronology studies. en_US M.S. en_US
dc.publisher Middle Tennessee State University en_US
dc.subject Red eft en_US
dc.subject Skeletochronology en_US
dc.subject Tennessee en_US
dc.subject.umi Zoology en_US
dc.subject.umi Histology en_US
dc.subject.umi Morphology en_US
dc.thesis.degreegrantor Middle Tennessee State University en_US
dc.thesis.degreelevel Masters en_US
dc.title Age Study of Red Efts (Notophthalmus viridescens viridescens) from a Cannon County, Tennessee Metapopulation en_US
dc.type Thesis en_US
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