Vesicular, Ulcerative, and Necrotic Dermatitis of Reptiles

Maas, Adolf K.

doi:10.1016/j.cvex.2013.05.007

Cited by 12 publications

(9 citation statements)

References 28 publications

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“…It is well known from veterinary practice that a wet environment is not tolerated by reptiles from dry environmental conditions, because they suffer here greatly from potentially lethal skin infections (e.g. Harkewicz, 2002; Maas, 2013). The interplay between environmental conditions, skin microbiota and ecophysiological characteristics of reptiles is a fruitful area for further research.…”

Section: Discussionmentioning

confidence: 99%

Ontogeny, phylogeny and mechanisms of adaptive changes in evaporative water loss in geckos

Hlubeň

Kratochvíl

Gvoždı́k

et al. 2021

J of Evolutionary Biology

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Body size dependence of metabolic rate, body surface and scale morphology complicate disentangling the contribution of these characteristics to adaptive changes in total evaporative water loss (TEWL) of reptiles. To separate adaptive changes from size‐related dependence, we compared intra‐ and interspecific scaling of several candidate traits in eyelid geckos (Eublepharidae), a group exhibiting large variation in body size and TEWL. The intraspecific allometry of TEWL of a eublepharid species fits the geometric surface–mass relationship. However, evolutionary shifts to both higher and lower evaporation were strongly correlated with habitat aridity and cannot be explained by shifts in body size alone. The intraspecific allometry of standard metabolic rate is nearly the same as the interspecific allometry. Unlike for mammals and birds, this pattern rules out respiratory water loss as a driver of the adaptive changes in TEWL among eublepharids. Scale morphology was independent of TEWL variation as well, but the correlation between cutaneous water loss and TEWL suggests a crucial role of skin permeability in adaptation to habitat aridity. Our analyses demonstrate how powerful a comparison between intra‐ and interspecific allometries can be for detecting body size‐dependent mechanisms of adaptive changes in ecophysiological traits correlated with body size.

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Section: Discussionmentioning

confidence: 99%

Ontogeny, phylogeny and mechanisms of adaptive changes in evaporative water loss in geckos

Hlubeň

Kratochvíl

Gvoždı́k

et al. 2021

J of Evolutionary Biology

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“…The combined morphology and histology of the lesions of UALVP 8504 are not diagnostic, but are similar to both post-traumatic and non-traumatic lesions. Ulcerating shell disease/ulcerating dermatitis in turtles can form after bacteria/fungi colonize shell damage (Wallach 1975;Harkewicz 2001;Maas 2013), and is suspected to form from environmental toxins (Garner et al 1997). Bony changes involved in cases of ulcerative shell disease of an unknown origin began with osteolysis (Lovich et al 1996).…”

Section: Differential Diagnosismentioning

confidence: 99%

Taking a crack at the dome: histopathology of a pachycephalosaurid (Dinosauria: Ornithischia) frontoparietal dome

et al. 2021

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Recent studies have identified numerous pathologies in the cranial domes of pachycephalosaurid dinosaurs. These studies utilized CT images of domes to identify secondary woven bone and sclerosis associated with the pathologies. These features were critical for diagnosing post-traumatic osteomyelitis, which supported the head-butting behaviour hypothesis. However, conventional CT image resolution may not be sufficient to identify secondary woven bone or sclerotic bone in fossil specimens. UALVP 8504 (cf. Foraminacephale brevis), a dome possessing putative bone lesions, was thin-sectioned and micro-CT scanned. Thin sections revealed the lesions are lytic, without any secondary woven bone or sclerosis, falsifying the diagnosis of osteomyelitis. The morphology and histology of the lesions of UALVP 8504 are not diagnostic and resemble both post-traumatic and non-traumatic lesions. However, UALVP 8504 possesses shifted vascular canals (repositioning via remodeling, which maintains anatomical position throughout ontogeny) that are decoupled from growth (), and drifting osteons (secondary osteons where resorption occurs longitudinally and transversely). These demonstrate that the dome has sustained external mechanical loading, likely resulting from an impact or multiple impacts, consistent with the head-butting hypothesis. These impacts may have damaged overlying soft tissues and formed the lesions along the surface. Therefore, we suspect that the pathologies in UALVP 8504 are post-traumatic.

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“…Incorrectly low humidity can result in severe consequences, often in relation to inadequate or incomplete ecdysis [25]. In contrast too high humidity can contribute to the growth of bacterial or fungal pathogens [26]. In natural environments, most small reptiles will spend much of their time in burrows or beneath rocks or leaf litter etc.…”

Section: Discussionmentioning

confidence: 99%

Availability of Information on Reptile Health and Welfare from Stores Selling Reptiles

Williams¹,

Jackson²

2016

OJVM

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The popularity of keeping reptiles such as snakes and lizards is ever increasing. The health and welfare of these animals depends on the knowledge and understanding of their environmental and nutritional needs. But where does a new owner of these species obtain such information? This study aims to investigate what information is available in pet shops and stores for the reptile owning public and how well this information is imparted. Our findings show that there is a lot of excellent advice on the husbandry of reptiles in some shops while others offer less advice. It is hoped that through this study areas of downfall on primary knowledge can be recognized so that all shops can aspire to the highest levels of information.

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Vesicular, Ulcerative, and Necrotic Dermatitis of Reptiles

Cited by 12 publications

References 28 publications

Ontogeny, phylogeny and mechanisms of adaptive changes in evaporative water loss in geckos

Ontogeny, phylogeny and mechanisms of adaptive changes in evaporative water loss in geckos

Taking a crack at the dome: histopathology of a pachycephalosaurid (Dinosauria: Ornithischia) frontoparietal dome

Availability of Information on Reptile Health and Welfare from Stores Selling Reptiles

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