Abstract

We sampled Desmognathus quadramaculatus, one of the largest species of plethodontid salamanders in eastern North America, from a population exhibiting extremely small adult body sizes in the Bald Mountains of North Carolina (USA). In order to test the hypothesis that miniaturization in desmognathine salamanders is due to early metamorphosis and maturation, we estimated ages and sizes at metamorphosis and maturation. Analysis of size-frequency distributions suggests that most larvae metamorphose after 24 months, with the remainder metamorphosing after 36. The minimum age of sexually mature individuals in the summer months is estimated to be 4 years in males and 5 years in females; some may mature 1 year earlier. This is earlier than other reliable estimates of age at maturation in D. quadramaculatus, and appears to account for the small size of the species at this locality. Larval and juvenile growth rates are within the range of growth rates of other populations. As in other populations of D. quadramaculatus, males are smaller than females at maturation, but grow to larger sizes. Estimates of clutch sizes based on dissection of gravid females are relatively low. The other species of salamanders in this community do not appear to be miniaturized.

In: Amphibia-Reptilia
Papers from the Fourth Münster Symposium on Jonathan Swift
Der Band enthält die sechsundzwanzig besten Vorträge des Vierten Münsteraner Symposiums zu Jonathan Swift vom Juni 2000. Thematisch ist der Band in sieben Sektionen gegliedert: I. Theoretical Concerns W. B. Carnochan, Stanford University Swift: The Canon, the Curriculum, and the Marketplace of Scholarship Clive T. Probyn, Monash University, Victoria “Convict of lyes is every sign”: Jonathan Swift and the Everyday II. Biographical Problems Bruce Arnold, Dublin Jonathan Swift: Some Current Biographical Problems Nora F. Crow, Smith Colleg, Northampton, Massachusetts Swift in Love J. A. Downie, Goldsmiths’ College, University of London “The Coffee Hessy spilt” and Other Issues in Swift’s Biography João Fróes, São Paulo, Brazil Swift’s Life in Late 1743: An Unpublished Letter from Deane Swift III. Political, Philosophical, and Literary Issues Ian Higgins, The Australian National University, Canberra Jonathan Swift and the Jacobite Diaspora Arno Löffler, Friedrich-Alexander-Universität, Erlangen-Nürnberg „Of Mean ans Great Figures“: Swift an dGreatness Michael De Porte, University of New Hapshire, Durham Riddles, Mysteries, and Lies: Swift and Secrecy Brean S. Hammond, Univeristy of Notthingham Swift’s Reading Heinz J. Vienken, Gernsbach „Nobody has ever written a really good book about Jonathan Swift“: Scouring the Recesses of Swiftian Mind