Tail development and regeneration throughout the life cycle of the four-toed salamanderHemidactylium scutatum

Vaglia, Janet L.; Babcock, Sharon K.; Harris, Reid N.

doi:10.1002/(sici)1097-4687(199707)233:1<15::aid-jmor2>3.0.co;2-n

Cited by 26 publications

(1 citation statement)

References 27 publications

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“…Some tail variation may be attributable to tail damage, and though we did not observe tail damage in any captured individuals, salamanders quickly regenerate tails following damage. Lasting effects on tail morphology may occur from tail damage as well [ 41 ]. Again, previous work argues that predator- and competitor-driven phenotypic plasticity are key drivers of variation in larval salamander tail morphology [ 5 , 6 , 39 ].…”

Section: Discussionmentioning

confidence: 99%

Trait variation in patchy landscapes: Morphology of spotted salamanders (Ambystoma maculatum) varies more within ponds than between ponds

Green,

Dell,

Crawford

et al. 2024

PLoS ONE

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The influence of intraspecific trait variation on species interactions makes trait-based approaches critical to understanding eco-evolutionary processes. Because species occupy habitats that are patchily distributed in space, species interactions are influenced not just by the degree of intraspecific trait variation but also the relative proportion of trait variation that occurs within- versus between-patches. Advancement in trait-based ecology hinges on understanding how trait variation is distributed within and between habitat patches across the landscape. We sampled larval spotted salamanders (Ambystoma maculatum) across six spatially discrete ponds to quantify within- and between-pond variation in mass, length, and various metrics associated with their relationship (scaling, body condition, shape). Across all traits, within-pond variation contributed more to total observed morphological variation than between-pond variation. Between-pond variation was not negligible, however, and explained 20–41% of total observed variation in measured traits. Between-pond variation was more pronounced in salamander tail morphology compared to head or body morphology, suggesting that pond-level factors more strongly influence tails than other body parts. We also observed differences in mass-length relationships across ponds, both in terms of scaling slopes and intercepts, though differences in the intercepts were much stronger. Preliminary evidence hinted that newly constructed ponds were a driver of the observed differences in mass-length relationships and morphometrics. General pond-level difference in salamander trait covariation suggest that allometric scaling of morphological traits is context dependent in patchy landscapes. Effects of pond age offer the hypothesis that habitat restoration through pond construction is a driver of variation in trait scaling, which managers may leverage to bolster trait diversity.

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Section: Discussionmentioning

confidence: 99%

Trait variation in patchy landscapes: Morphology of spotted salamanders (Ambystoma maculatum) varies more within ponds than between ponds

Green,

Dell,

Crawford

et al. 2024

PLoS ONE

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Experimental analysis of character coupling across a complex life cycle: Pigment pattern metamorphosis in the tiger salamander,Ambystoma tigrinum tigrinum

Parichy¹

1998

J. Morphol.

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Developmental relationships among characters are expected to bias patterns of morphological variation at the population level. Studies of character development thus can provide insights into processes of adaptation and the evolutionary diversification of morphologies. Here I use experimental manipulations to test whether larval and adult pigment patterns are coupled across metamorphosis in the tiger salamander, Ambystoma tigrinum tigrinum (Ambystomatidae). Previous investigations showed that the early larval pigment pattern depends on interactions between pigment cells and the lateral line sensory system. In contrast, the results of this study demonstrate that the major features of the adult pigment pattern develop largely independently of both the early larval pattern and the lateral lines. These results suggest that ontogenetic changes that occur across metamorphosis decouple larval and adult pigment patterns and could thereby facilitate independent evolutionary modifications to the patterns during different stages of the life cycle. J. Morphol. 237:53–67, 1998. © 1998 Wiley‐Liss, Inc.

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Caudal vertebral development and morphology in three salamanders with complex life cycles (Ambystoma jeffersonianum,Hemidactylium scutatum, andDesmognathus ocoee)

Babcock

Blais

2001

J. Morphol.

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Tail development and regeneration throughout the life cycle of the four-toed salamanderHemidactylium scutatum

Cited by 26 publications

References 27 publications

Trait variation in patchy landscapes: Morphology of spotted salamanders (Ambystoma maculatum) varies more within ponds than between ponds

Trait variation in patchy landscapes: Morphology of spotted salamanders (Ambystoma maculatum) varies more within ponds than between ponds

Experimental analysis of character coupling across a complex life cycle: Pigment pattern metamorphosis in the tiger salamander,Ambystoma tigrinum tigrinum

Caudal vertebral development and morphology in three salamanders with complex life cycles (Ambystoma jeffersonianum,Hemidactylium scutatum, andDesmognathus ocoee)

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