Phénotypes de la salamandre cendrée (Plethodon cinereus) dans le nord-est de l’Amérique du Nord

Moore, Jean-David; Gilhen, John; Ouellet, Martin

doi:10.7202/1009242ar

Cited by 3 publications

(4 citation statements)

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“…This salamander's striking colour polymorphism has long attracted the attention of herpetologists and naturalists. Eight colour phenotypes are known and have been recently reviewed (Moore et al 2012;Moore and Ouellet 2014). The red-backed (striped) and lead-backed (unstriped) morphs occur in most populations of P. cinereus, but in very different proportions (Moore and Ouellet 2015).…”

Section: Introductionmentioning

confidence: 99%

Silver-white Variants of the Eastern Red-backed Salamander, Plethodon cinereus, from Eastern Canada

Ouellet¹,

Moore²

2016

Can Field Nat

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. 2016. Silver-white variants of the Eastern Red-backed Salamander, Plethodon cinereus, from eastern Canada. Canadian Field-Naturalist 130(2): 133-136.The Eastern Red-backed Salamander (Plethodon cinereus) is well known for its colour polymorphism, which includes 8 colour phenotypes: the red-backed (striped), lead-backed (unstriped), and erythristic morphs, as well as the iridistic, albino, leucistic, amelanistic, and melanistic anomalies. Among these, the prevalence and geographic distribution of rare morphs have received little attention. In this article, we report 2 occurrences of silver-white variants of the red-backed morph of P. cinereus from Québec, Canada. To our knowledge, these variations in stripe colour on the red-backed phenotype represent the first 2 documented mentions for eastern Canada.

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Section: Introductionmentioning

confidence: 99%

Silver-white Variants of the Eastern Red-backed Salamander, Plethodon cinereus, from Eastern Canada

Ouellet¹,

Moore²

2016

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“…this condition is somewhat the opposite of amelanism. this anomaly in a P. cinereus was first mentioned in Québec (Moore et al 2012). With its uniformly black and translucent belly, the melanistic individual is relatively easy to distinguish from the lead-backed morph (occasionally very dark), which has a salt-and-pepper belly ap pearance.…”

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confidence: 99%

“…the albino P. cinereus is unstriped and characterized by a flesh-colored body (pink-white to white) and red-pink irises (Figure 13). According to the literature, this anomaly has been observed three times in Canada (Milnes 1946;Moore et al 2012) and three times in the united States (Fowler 1942;Hensley 1959;Harris 1968a), though no detailed description of the specimens was given by Milnes (1946) nor Harris (1968a. the only case mentioned in Québec (Moore et al 2012) has been redefined as an amelanistic P. cinereus, after the photographic verification showed normal (dark) pigmentation of the irises, a light orange dorsal stripe and the pink-white colour of the specimen's dorsal-lateral body.…”

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A review of colour phenotypes of the Eastern Red-backed Salamander, Plethodon cinereus, in North America

Moore

Ouellet²

2014

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Moore, Jean-David, and Martin ouellet. 2014. A review of colour phenotypes of the Eastern Red-backed Salamander, Plethodon cinereus, in North America. Canadian Field-Naturalist 128(3): 250-259.the Eastern Red-backed Salamander (Plethodon cinereus) is the most abundant salamander species in many forests of northeastern North America. it is well-known for its colour polymorphism, which includes eight colour phenotypes: the red-backed (striped), lead-backed (unstriped) and erythristic morphs, as well as the iridistic, albino, leucistic, amelanistic and melanistic anomalies. Here we review the various colorations of P. cinereus, with the objective of facilitating the identification of these different phenotypes and of generating interest among field herpetologists and scientists reporting on this species. We also list six previously unpublished occurrences of colour variants in this species (1 case of erythrism, 3 of iridism, 1 of leucism, and 1 of partial leucism). to our knowledge, these cases include the first documented occurrence of iridism in the red-backed morph of P. cinereus, and the first two mentions of this colour anomaly in the lead-backed morph from Canada. showed that they are of the same species (Highton 1959). Both morphs can be found across the species range, throughout southeastern Canada and the eastern united States (Petranka 1998), but in very different proportions (Moore and ouellet 2014). in some areas, both morphs are abundant, while in others, one or the other is more abundant. Monomorphic red-backed populations are not uncommon, while in other cases, redbacked individuals can be scarce or absent (thurow 1955;Highton 1959;Pfingsten and Walker 1978;Reichenbach 1981;Fisher-Reid et al. 2013). the redbacked morph has been reported in five Canadian provinces and 22 American states (table 2), which represents the distribution range of this species. Kentucky, Minnesota, and tennessee are at the limit of the species' range and the lead-backed morph of P. cinereus has not been reported there. in the last decades, studies have suggested that the lead-backed morph of P. cinereus is more closely associated with warmer climates than the red-backed morph (lotter and Scott 1977;Moreno 1989;Gibbs and Karraker 2006; Anthony et al. 2008). However, it seems that the possible role of climate in the distribution of the lead-backed morph has never been unanimously recognized; some doubts still persist in the scientific community about the validity of using this morph as indicator of climatic changes (Angleberger and Chinnici 1975;Pfingsten and Walker 1978; Petruzzi et al. 2006; Anthony et al. 2008). Based on new discoveries in the northern areas of the species' range and on the largest compilation ever made for this species, Moore and ouellet (2014) demonstrate however that climate and geographic variables do not influence the colour morph proportions in P. cinereus populations. Fitzpatrick et al. (2009) mentioned that the most reasonable hypothesis to explain the existence of visual polymorphism across a geogr...

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Examining Head-shape Differences and Ecology in Morphologically Similar Salamanders at Their Zone of Contact

Deitloff

Floyd

Graham

2016

Copeia

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Phénotypes de la salamandre cendrée (Plethodon cinereus) dans le nord-est de l’Amérique du Nord

Cited by 3 publications

References 31 publications

Silver-white Variants of the Eastern Red-backed Salamander, <i>Plethodon cinereus</i>, from Eastern Canada

Silver-white Variants of the Eastern Red-backed Salamander, <i>Plethodon cinereus</i>, from Eastern Canada

A review of colour phenotypes of the Eastern Red-backed Salamander, <em>Plethodon cinereus</em>, in North America

Examining Head-shape Differences and Ecology in Morphologically Similar Salamanders at Their Zone of Contact

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