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dc.contributor.authorWhiteman, Howard H.
dc.contributor.authorWissinger, Scott A.
dc.contributor.authorDenoël, Mathieu
dc.contributor.authorMecklin, Christopher J.
dc.contributor.authorGerlanc, Nicole M.
dc.contributor.authorGutrich, John J.
dc.identifier.citationWhiteman, H.H., et al. (2012). Larval growth in polyphenic salamanders: making the best of a bad lot. Oecologia 168: 109-118. doi: 10.1007/s00442-011-2076-zen_US
dc.description.abstractPolyphenisms are excellent models for studying phenotypic variation, yet few studies have focused on natural populations. Facultative paedomorphosis is a polyphenism in which salamanders either metamorphose or retain their larval morphology and eventually become paedomorphic. Paedomorphosis can result from selection for capitalizing on favorable aquatic habitats (paedomorph advantage), but could also be a default strategy under poor aquatic conditions (best of a bad lot). We tested these alternatives by quantifying how the developmental environment influences the ontogeny of wild Arizona tiger salamanders (Ambystoma tigrinum nebulosum). Most paedomorphs in our study population arose from slow-growing larvae that developed under high density and size-structured conditions (best of a bad lot), although a few fastergrowing larvae also became paedomorphic (paedomorph advantage). Males were more likely to become paedomorphs than females and did so under a greater range of body sizes than females, signifying a critical role for gender in this polyphenism. Our results emphasize that the same phenotype can be adaptive under different environmental and genetic contexts and that studies of phenotypic variation should consider multiple mechanisms of morph production.en_US
dc.rightsThis article was selected and published in Oecologia © 2012 Whiteman, Wissinger, Denoël, Mecklin, Gerlanc, and Gutrich. All rights reserved.en_US
dc.subjectdensity dependenceen_US
dc.subjectsize structureen_US
dc.subjectfacultative paedomorphosisen_US
dc.titleLarval growth in polyphenic salamanders: making the best of a bad loten_US
dc.description.versionOriginal manuscript prior to peer review (preprint)en_US
dc.contributor.departmentEnvironmental Science / Studiesen_US
dc.contributor.avlauthorWissinger, Scott A.

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