Natural History Constrains the Macroevolution of Foot Morphology in European Plethodontid Salamanders

Adams, Dean C.; Korneisel, Dana; Young, Morgan; Nistri, Annamaria

doi:10.1086/692471

Cited by 15 publications

(23 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These findings are consistent with stabilizing selection acting to restrict trait variation at a macroevolutionary scale (Wheatcroft and Price 2015; Adams et al. 2017) and may suggest canalization of robust developmental stability in the hindlimbs of emydid turtles.…”

Section: Discussionsupporting

confidence: 79%

“…Traits within taxa often evolve at different rates (Adams et al. 2017). In particular, when selection acts more strongly on one trait, as is predicted by the morpho‐functional hypothesis of symmetry, that trait should display decreased evolutionary variation (Adams et al.…”

Section: Methodsmentioning

confidence: 99%

“…In particular, when selection acts more strongly on one trait, as is predicted by the morpho‐functional hypothesis of symmetry, that trait should display decreased evolutionary variation (Adams et al. 2017). Thus, we expect to find lower evolutionary rates in traits on which selection acts more strongly.…”

Section: Methodsmentioning

confidence: 99%

“…Traits within taxa often evolve at different rates (Adams et al 2017). In particular, when selection acts more strongly on Table S1).…”

Section: Phylogenetic Patternsmentioning

confidence: 99%

See 3 more Smart Citations

Patterns of fluctuating asymmetry in the limbs of freshwater turtles: Are more functionally important limbs more symmetrical?

Rivera

Neely

2020

Evolution

View full text Add to dashboard Cite

Understanding how selective forces influence patterns of symmetry remains an active area of research in evolutionary biology. One hypothesis, which has received relatively little attention, suggests that the functional importance of morphological characters may influence patterns of symmetry. Specifically, it posits that for structures that display bilateral symmetry, those with greater functional importance should display lower levels of asymmetry. The aim of this study was to examine the patterns of fluctuating asymmetry (FA) present in the limb bones of freshwater turtles in the family Emydidae. Aquatic emydid turtles of the subfamily Deirochelyinae employ a hindlimb‐dominant swimming style, suggesting that hindlimbs should display lower levels of FA. Consistent with the morpho‐functional hypothesis of symmetry, we found a strong, clade‐wise pattern of humeral‐biased FA in aquatic Deirochelyinae. In contrast, some emydids of the subfamily Emydinae possess more terrestrial tendencies. As terrestrial locomotion places more equal importance on fore‐ and hindlimbs, we predicted that such behaviors may minimize differences in FA. No clade‐wise pattern was detected in the subfamily Emydinae. We also detected a phylogenetic signal in FA within the femur and discovered that FA has evolved at vastly different rates between the fore‐ and hindlimbs.

show abstract

Section: Discussionsupporting

confidence: 79%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…Traits within taxa often evolve at different rates (Adams et al 2017). In particular, when selection acts more strongly on Table S1).…”

Section: Phylogenetic Patternsmentioning

confidence: 99%

See 2 more Smart Citations

Patterns of fluctuating asymmetry in the limbs of freshwater turtles: Are more functionally important limbs more symmetrical?

Rivera

Neely

2020

Evolution

View full text Add to dashboard Cite

show abstract

“…; Adams et al. ). Thus, the faster rate of evolution in claw length is likely due to its lack of biomechanical importance in arboreal anoles (Zani ).…”

Section: Discussionmentioning

confidence: 98%

Phenotypic integration between claw and toepad traits promotes microhabitat specialization in the Anolis adaptive radiation

2019

View full text Add to dashboard Cite

The performance of an organism in its environment frequently depends more on its composite phenotype than on individual phenotypic traits. Thus, understanding environmental adaptation requires investigating patterns of covariation across functionally related traits. The replicated adaptive radiations of Greater Antillean Anolis lizards are characterized by ecological and morphological convergence, thus, providing an opportunity to examine the role of multiple phenotypes in microhabitat adaptation. Here, we examine integrated claw and toepad morphological evolution in relation to habitat partitioning across the adaptive radiations of Greater Antillean anoles. Based on analysis of 428 specimens from 57 species, we found that different aspects of claw morphology were associated with different perch dimensions, with claw height positively associated with perch diameter and claw curvature positively associated with perch height. Patterns of integration also varied across claw and toepad traits, likely driven by correlative selection for performance on smoother and rougher substrates. Finally, rates of evolution differed between claw and toepad traits, with claw length evolving faster than all other traits despite having no predicted functional importance. Our results highlight the multivariate nature of phenotypic adaptation and suggest that phenotypic integration across Greater Antillean anoles is driven by fine‐scale correlative selection based on structural habitat specialization.

show abstract

Macroevolution of arboreality in salamanders

Baken

Adams

2019

Ecology and Evolution

Self Cite

View full text Add to dashboard Cite

Evolutionary theory predicts that selection in distinct microhabitats generates correlations between morphological and ecological traits, and may increase both phenotypic and taxonomic diversity. However, some microhabitats exert unique selective pressures that act as a restraining force on macroevolutionary patterns of diversification. In this study, we use phylogenetic comparative methods to investigate the evolutionary outcomes of inhabiting the arboreal microhabitat in salamanders. We find that arboreality has independently evolved at least five times in Caudata and has arisen primarily from terrestrial ancestors. However, the rate of transition from arboreality back to terrestriality is 24 times higher than the converse. This suggests that macroevolutionary trends in microhabitat use tend toward terrestriality over arboreality, which influences the extent to which use of the arboreal microhabitat proliferates. Morphologically, we find no evidence for an arboreal phenotype in overall body proportions or in foot shape, as variation in both traits overlaps broadly with species that utilize different microhabitats. However, both body shape and foot shape display reduced rates of phenotypic evolution in arboreal taxa, and evidence of morphological convergence among arboreal lineages is observed. Taken together, these patterns suggest that arboreality has played a unique role in the evolution of this family, providing neither an evolutionary opportunity, nor an evolutionary dead end.

show abstract

Natural History Constrains the Macroevolution of Foot Morphology in European Plethodontid Salamanders

Cited by 15 publications

References 53 publications

Patterns of fluctuating asymmetry in the limbs of freshwater turtles: Are more functionally important limbs more symmetrical?

Patterns of fluctuating asymmetry in the limbs of freshwater turtles: Are more functionally important limbs more symmetrical?

Phenotypic integration between claw and toepad traits promotes microhabitat specialization in the Anolis adaptive radiation

Macroevolution of arboreality in salamanders

Contact Info

Product

Resources

About