Postautotomy tail movement differs between colour morphs of the red-backed salamander (Plethodon cinereus)

Otaibi, Banan W.; Johnson, Quincey K.; Cosentino, Bradley J.

doi:10.1163/15685381-00003107

Cited by 9 publications

(6 citation statements)

References 28 publications

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“…Second, our study focused on how abiotic factors could maintain color polymorphism, but there may be additional biotic selection pressures that favor striped individuals at cool sites with low forest cover. For example, predation pressure may vary between striped and unstriped morphs due to differences in coloration (Lotter & Scott, ), behavior (Moreno, ; Venesky & Anthony, ; Otaibi, Johnson, & Cosentino, In press) or local frequency (i.e., frequency‐dependent selection; Fitzpatrick, Shook, & Izally, ). Striped and unstriped individuals also vary in diet (Anthony et al., ), territorial behavior (Reiter, Anthony, & Hickerson, ), and disease resistance (Venesky et al., ).…”

Section: Discussionmentioning

confidence: 99%

Evolutionary response to global change: Climate and land use interact to shape color polymorphism in a woodland salamander

Cosentino

Moore

Karraker

et al. 2017

Ecology and Evolution

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Evolutionary change has been demonstrated to occur rapidly in human-modified systems, yet understanding how multiple components of global change interact to affect adaptive evolution remains a critical knowledge gap. Climate change is predicted to impose directional selection on traits to reduce thermal stress, but the strength of directional selection may be mediated by changes in the thermal environment driven by land use. We examined how regional climatic conditions and land use interact to affect genetically based color polymorphism in the eastern red-backed salamander (Plethodon cinereus). P. cinereus is a woodland salamander with two primary discrete color morphs

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Section: Discussionmentioning

confidence: 99%

Evolutionary response to global change: Climate and land use interact to shape color polymorphism in a woodland salamander

Cosentino

Moore

Karraker

et al. 2017

Ecology and Evolution

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“…Post‐autotomy appendage movement has evolved independently multiple times (Appendix S1) and is observed in lizards (Higham & Russell, ), salamanders (Labanick, ), and arachnids [harvestmen (Miller, ; Roth & Roth, ), spiders (Johnson & Jakob, ) and scorpions (Mattoni et al, ); of which some can regenerate and others cannot]. In some species, there is also inter‐population variation in the vigour of post‐autotomy appendage movement, which correlates with local predatory pressure (Cooper, Pérez‐Mellado, & Vitt, ; suggested in Cromie & Chapple, ; Otaibi, Johnson, & Cosentino, ). However, in other species, the duration of post‐autotomy body‐part movement is highly conserved (Pafilis, Valakos, & Foufopoulos, ; Pafilis, Pérez‐Mellado, & Valakos, ; Pafilis et al, ).…”

Section: Evolution Of the Autotomy Phenotypementioning

confidence: 99%

The ecology and evolution of autotomy

2019

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Autotomy, the self-induced loss of a body part, occurs throughout Animalia. A lizard dropping its tail to escape predation is an iconic example, however, autotomy occurs in a diversity of other organisms. Octopuses can release their arms, crabs can drop their claws, and bugs can amputate their legs. The diversity of organisms that can autotomize body parts has led to a wealth of research and several taxonomically focused reviews. These reviews have played a crucial role in advancing our understanding of autotomy within their respective groups. However, because of their taxonomic focus, these reviews are constrained in their ability to enhance our understanding of autotomy. Here, we aim to synthesize research on the ecology and evolution of autotomy throughout Animalia, building a unified framework on which future studies can expand. We found that the ability to drop an appendage has evolved multiple times throughout Animalia and that once autotomy has evolved, selection appears to act on the removable appendage to increase the efficacy and/or efficiency of autotomy. This could explain why some autotomizable body parts are so elaborate (e.g. brightly coloured). We also show that there are multiple benefits, and variable costs, associated with autotomy. Given this variation, we generate an economic theory of autotomy (modified from the economic theory of escape) which makes predictions about when an individual should resort to autotomy. Finally, we show that the loss of an autotomizable appendage can have numerous consequences on population and community dynamics. By taking this broad taxonomic approach, we identified patterns of autotomy that transcend specific lineages and highlight clear directions for future research.

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“…These differences in behavior and tail autotomy suggest that the two morphs experience different rates of predation, with the authors hypothesizing that unstriped morphs experience greater predation by T. sirtalis . After simulated predation (i.e., a tail clip), Otaibi, Johnson, & Cosentino (2017) found that the autotomized tails of striped morphs move longer and faster than those of unstriped morphs.…”

Section: (Ii) Differential Predation Risk By Colormentioning

confidence: 99%

Eastern red-backed salamanders: A comprehensive review of an undervalued model in evolution, ecology, & behavior

Fisher‐Reid¹,

Grayson²,

Grouleff³

et al. 2021

Preprint

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What makes a model organism? Identifying the qualities of a model organism has been given a great deal of attention in the biomolecular sciences, but less so in the fields of evolution, ecology, and behavior (EEB). In EEB, biotic and abiotic variation are features to understand, not bugs to get rid of, and EEB scientists often select organisms to study which best suit the scientific question at hand. Successful EEB model organisms can be studied at multiple biological scales and have a wealth of accumulated knowledge on which current research programs build. A recent call within EEB to invest in the inclusive development of diverse model systems and scientists has led us to evaluate the standing of the widespread, abundant, terrestrial salamander we study, the eastern red-backed salamander (Plethodon cinereus). We first look at salamanders as EEB models more generally, to determine where P. cinereus fits in this broader context. We next present a comprehensive review of the literature on the eastern red-backed salamander (Plethodon cinereus) since the last comprehensive review was completed in 1998. The core of our paper reviews 410 recent studies and highlights inconsistencies, gaps in our knowledge, and future directions in the context of the 1998 review. Finally, we present a collaborative research network, SPARCnet, as a nascent infrastructure for continued research on P. cinereus. Here, we especially discuss how this type of infrastructure can be broadly applied not just to other salamanders, but to other model systems, so that the future of EEB research may benefit from models which accurately represent, in Darwin’s words, “endless forms most beautiful and most wonderful.”

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Postautotomy tail movement differs between colour morphs of the red-backed salamander (Plethodon cinereus)

Cited by 9 publications

References 28 publications

Evolutionary response to global change: Climate and land use interact to shape color polymorphism in a woodland salamander

Evolutionary response to global change: Climate and land use interact to shape color polymorphism in a woodland salamander

The ecology and evolution of autotomy

Eastern red-backed salamanders: A comprehensive review of an undervalued model in evolution, ecology, & behavior

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