Science topic

Salamandridae - Science topic

A family of Urodela consisting of 15 living genera and about 42 species and occurring in North America, Europe, Asia, and North Africa.
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Publications related to Salamandridae (5,100)
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The use of passive integrated transponder (PIT) tags in urodeles has become popular for individual marking in population and disease ecology studies. However, mark loss or mark-induced mortality can introduce biases and decrease precision in parameter estimates, leading to ineffective population management strategies. In this study we aimed to 1) a...
Article
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Related species often engage in abutting or overlapping contact zones with various strengths of interspecific competition. Biotic interactions such as these preclude the registration of the full profile of environmental variables that would describe the otherwise larger species ranges. Here, I advocate to forego full range species distribution mode...
Article
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Temnospondyli are a morphologically varied and ecologically diverse clade of tetrapods that survived for over 200 million years. The body mass of temnospondyls is a key variable in inferring their ecological, physiological and biomechanical attributes. However, estimating the body mass of these extinct creatures has proven difficult because the gro...
Article
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In adult newts, when a limb is amputated, a mesenchymal cell mass called the blastema is formed on the stump, where blood vessels filled with premature erythrocytes, named polychromatic normoblasts (PcNobs), elongate. We previously demonstrated that PcNobs in the blastema express an orphan gene, Newtic1, and that they secrete growth factors such as...
Article
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This paper contains information on the records of bottom macroinvertebrates, fish, amphibians and reptiles collected during a fi eld expedition to the valley of the river Tskhenistskali (in the vicinities of town of Lentekhi and village of Sasashi) in April 2018. According to the results of the study, three fish species (Actinopterigii) of three fa...
Article
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Numerous studies have documented high numbers of amphibians killed by vehicular strikes on roads. This direct mortality can cause population declines and extirpations, but in some cases the declines might be masked, initially, by large population sizes. Population viability analysis can help discern population trajectories and identify incipient de...
Article
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Linear transport infrastructure can alter the viability of populations and wildlife passages are used to mitigate their impacts. The assessment of their outcomes is often limited to recording the use of the tunnels by a focal species. For amphibians, the effectiveness of tunnels is poorly evaluated with little information about whether certain feat...
Preprint
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The Iberian ribbed newt (Pleurodeles waltl) constitutes a central model for probing the basis of regeneration. Here, we present the sequencing and chromosome-scale assembly of the 20.3Gb P. waltl genome, which exhibits the highest level of contiguity and completeness among giant genomes. We uncover that DNA transposable elements are the major contr...
Article
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Mitochondrial genomes (mitogenomes) are valuable resources in molecular and evolutionary studies, such as phylogeny and population genetics. The complete mitogenomes of two crocodile newts, Tylototriton broadoridgus and Tylototriton gaowangjienensis, were sequenced, assembled, and annotated for the first time using next-generation sequencing. The c...
Poster
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The Macedonian crested newt, Triturus macedonicus (Karaman, 1922), is a priority species (ANNEX II, 92/43/EEC) in need of protection. The aim of this study was to investigate the phylogenetic position and the demographic history of the species’ populations in Northern Pindos National Park based on mitochondrial DNA sequences. The phylogenetic analy...
Poster
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Amphibians are amongst the most threatened vertebrates and their populations have been declining worldwide. Newt populations, and especially those exhibiting facultative paedomorphosis, i.e. the retention of larval characteristics such as gills in sexually mature individuals leading to distinct phenotypes, depend on both aquatic and terrestrial hab...
Article
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With the further expansion of the invasive amphibian chytrid fungus Batrachochytrium salamandrivorans (Bsal) in recent years, the nearest known infected populations to Luxembourg are located at approximately 15 km from the border with Germany and 30 km from the border with Belgium. As Luxembourg still is considered untouched by Bsal and the expansi...
Preprint
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Ectotherms are particularly sensitive to global warming due to their limited capacity to thermoregulate, which can impact their performance and fitness. From a physiological perspective, higher temperatures often enhance metabolism, a process that can induce the production of reactive oxygen species and finally result in a cellular oxidative stress...
Article
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Zusammenfassung Im Osten und Nordosten Brandenburgs wurden in verschiedenen Gewässertypen neotene Teichmolche (Lissotriton vulgaris) beobachtet. Neben typischen Habitaten, wie einem ehemaligen Schwimmbecken und einem Feuerlöschteich, traten hierbei auch Kleingewässer der intensiv genutzten Agrarlandschaft in Erscheinung. Im Fall des Vorkommens in...
Article
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Complex parenting has been proposed to contribute to the evolutionary success of vertebrates. However, the evolutionary routes to complex parenting and the role of parenting in vertebrate diversity are still contentious. Although basal vertebrates provide clues to complex reproduction, these are often understudied. Using 181 species that represent...
Conference Paper
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Activities aiming to reduce the methodological biases in COBAYA when dealing with reflector modelling are crucial to enhance code accuracy. These activities are focused, first, on the reduction of biases in the NEWT lattice-physics code, used to compute the few-group parameters for COBAYA, which leads to the optimization of key modelling parameters...
Article
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The Paramesotriton Chang, 1935 genus of Asian warty newts is the second most diverse genus in the family Salamandridae, currently containing 14 recognized species from northern Vietnam to southwest-central and southern China. Although species of this genus have been included in previous phylogenetic studies, the origin and interspecific relationshi...
Poster
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Amphibians are useful bioindicators for monitoring aquatic health and the influence of xenobiotics such as endocrine disrupting chemicals. One of the most potent endocrine disruptors is thiourea, which chemically blocks the synthesis of thyroid hormones and prevents metamorphosis in amphibian. This study describes the influence of thiourea on histo...
Preprint
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Background: Aging and regeneration are heavily linked processes. While it is generally accepted that regenerative capacity declines with age, some vertebrates, such as newts, can bypass the deleterious effects of aging and successfully regenerate a lens throughout their lifetime. Results: Here, we used Optical Coherence Tomography (OCT) to monitor...
Article
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Nachruf auf Dr. Bernd von Bülow: Bernd von Bülow wurde in Posen (heute Polen) geboren, erlebte als elfjähriger Junge die Flucht vor den Russen, studierte später Chemie und war dann beruflich als Chemiker tätig. Seinen Neigungen folgend hat er sich bei der Erforschung der Herpetofauna, der Säugetierfauna und der Avifauna in Westfalen und auch darübe...
Poster
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Assessing the conservation status, defining population genetic structure and measuring genetic variation patterns and levels of gene flow of the Macedonian crested newt using Mitochondrial DNA and Microsatellites, in Northern Pindos National Park.
Poster
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In developmental biology a plethora of studies support the existence of a conserved stage during the ontogeny of vertebrates – the pharyngula. The developmental hourglass model predicts that the most conserved morphological pattern occurs in the middle of embryonic development. We explored external morphology of the craniofacial region of Triturus...
Conference Paper
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The establishment of ecological networks (including Natura 2000) is one of the priorities in the conservation of important species and habitats in the Republic of Serbia. During the last three years (2020-2022), we conducted field research on amphibian and reptile species listed in the Annexes II & IV of the Habitat Directive. The main goals were t...
Article
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Neurergus derjugini is a mountain brook-dwelling newt which is distributed in the mid-Zagros Mountains in the border areas between Iran and Iraq. During extensive fieldwork in spring and summer 2016, two new localities were found for this endangered species in Kurdistan Province, western periphery of the Iranian Plateau. One locality is in Mariwan...
Conference Paper
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Crested newts (Triturus) are well-established model organisms in hybrid zone research. They are distributed across large areas of Europe and have come into secondary contact through postglacial expansion. Several molecular studies addressing these contact zones found different admixture proportions along transects ranging from bimodal to unimodal h...
Article
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Book review of a field guide dealing with amphibians and reptiles of Iran. Iran Amphibia Reptilia Agamidae Spix, 1825 Calotes versicolor (Daudin, 1802) Laudakia melanura Blyth, 1854 Laudakia nupta (de Filippi, 1843) Paralaudakia caucasia (Eichwald, 1831) Paralaudakia erythrogaster (Nikolsky, 1896) Paralaudakia microlepis (Blanford, 1874) Phrynoceph...
Article
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The trophic niche of a species is one of the fundamental traits of species biology. The ideal trophic niche of a species is realized in the absence of interspecific competition, targeting the most profitable and easy-to-handle food resources. However, when a competitor is present, species adopt different strategies to reduce competition and promote...
Article
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For this paper, we analysed a large dataset of amphibian records collected over several decades with regard to the distribution of the great crested newt (Triturus cristatus) in the western and southwestern parts of Luxembourg. We linked these data to another dataset containing ponds created or restored by the syndicate for nature conservation SICO...
Article
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The present study is a review of the herpetofauna of the sourtheastern part of the Black Sea Coast and Strandzha Nature Park. A total of thirty nine species were recorded for both regions (12 amphinian species, 27 - reptiles), of which two newt species (Lissotriton vulgaris, Triturus ivanbureshi), ten species of anurans (Bombina bombina, B. variega...
Article
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Ponds in agricultural landscapes are often used by amphibians as breeding habitat. However, the characteristics of agricultural ponds and especially the surrounding area are usually said to be suboptimal for many amphibian species. Using suboptimal habitats might allow a species' survival and reproduction, but can have negative consequences at the...
Article
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The location, shape and area of dark spots on the belly, throat and sides of the body of three closely related species of smooth newts (Lissotriton kosswigi, L. schmidtleri and L. vulgaris) were analysed. Differences were found between species and sexes in the location and shape of dark spots on the belly, throat and lateral surfaces of the body. D...
Article
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Di Nicola M.R., Zabbia T., Mezzadri S., Cerullo A., Bruni G. (2022). Male-male interactions in Alpine Salamanders, Salamandra atra atra (Laurenti, 1768), with an overview of the main cases reported for the genus Salamandra (Amphibia: Salamandridae). Herpetology Notes, 15: 601-604.
Article
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This article explores the collaborative research of the Nobel laureate Hans Spemann (1869–1941) and the Swiss zoologist Fritz Baltzer (1884–1974) on problems at the intersection of development and heredity and raises more general questions concerning science and politics in Germany in the interwar period. It argues that Spemann and Baltzer’s collab...
Article
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Evolutionary biologists are always interested in deciphering the geographic context of diversification, therefore they introduced the concept of comparative phylogeography, which helps to identify common mechanisms that contribute to shared genetic structures among organisms from the same region. Here, we used multi-locus genetic data along with en...
Article
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The nematode parasite Angiostrongylus cantonensis (rat lungworm) has a complex life cycle involving rats (definitive hosts) and gastropods (intermediate hosts), as well as various paratenic hosts. Humans become infected and develop rat lungworm disease (neuroangiostrongyliasis) when they consume intermediate or paratenic hosts containing the infect...
Article
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Newts can regenerate their limbs throughout their life-span. Focusing on muscle, certain species of newts such as Cynops pyrrhogaster dedifferentiate muscle fibers in the limb stump and mobilize them for muscle creation in the regenerating limb, as they grow beyond metamorphosis. However, which developmental process is essential for muscle dediffer...
Article
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The island of Newfoundland has no native amphibian taxa, although six species of Anura (i.e., frogs and toads) have been introduced since European colonisation, four of which have established self-sustaining populations. Here, we document Eastern Red-backed Salamander (Plethodon cinereus) on Newfoundland for the first time, in what appears to be a...
Article
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Terrestrial anurans, with their typically short limbs, heavy-set bodies and absent claws or toe pads are incongruous tree climbers, but even occasional arboreal locomotion could offer substantial advantages for evading predators or accessing new shelter or food resources. Despite recent interest, arboreal behaviour remains rarely and unsystematical...
Preprint
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Animals that frequently encounter toxins often select for mechanisms of toxin resistance. Both predators that consume toxic prey and organisms in physical contact with a toxin or pollutant in their environment may experience natural selection for resistance. Based on field observations that Pacific Chorus Frogs ( Pseudacris regilla ) sometimes eat...
Cover Page
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The cover image is based on the Original Article Explaining declines of newt abundance in northern Italy, by Mattia Falaschi et al. Cover Image: Italian crested newt (Triturus carnifex) from northern Italy. Photo Credit: Matteo Riccardo Di Nicola.
Article
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A widely used system for assessing habitat for the great crested newt uses five categories ranging from ‘poor’ to ‘excellent’ based on thresholds for the Habitat Suitability Index (HSI). However, how these categories relate to pond occupancy, at an England-wide scale, is unknown. Equally, the Habitat Suitability Index system has so far only been va...
Article
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Notophthalmus viridescens (Eastern Newt) artificial breeding habitat
Article
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Induced pluripotent stem (iPS) cells are widely used as a research tool in regenerative medicine and embryology. In studies related to lens regeneration in the eye, iPS cells have been reported to differentiate into lens epithelial cells (LECs); however, to the best of our knowledge, no study to date has described their formation of three-dimension...
Article
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This study summarizes the temporal variation, the relative contribution of each university, the research topics addressed, the taxonomic groups studied and the differences in author and its advisors' gender in the 303 PhD theses on herpetology defended in Spain and gathered in Teseo © and Dialnet © between 1977 and 2020. The number of theses defend...
Article
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ABSTRACT Extinct Fish: Smooth handfish (Sympterichthys unipennis). Extinct amphibians: Golden toad, Sri Lankan shrub frog, Harlequin Frog, Yunnan Lake Newt, Ainsworth’s Salamander, Indian Caecilian, Southern Gastric-Brooding Frog, Australian Torrent Frog, Vegas Valley Leopard Frog, Nannophrys guentheri, Extinct reptiles: Chelonoidis abingdonii,...
Preprint
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A key goal in cosmology in the upcoming decade will be to form a better understanding of the accelerated expansion of the Universe. Upcoming surveys, such as the Vera C. Rubin Observatory's 10-year Legacy Survey of Space and Time (LSST), Euclid and the Square Killometer Array (SKA) will deliver key datasets required to tackle this and other puzzles...
Article
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Artificial light at night (ALAN) is a pervasive pollutant that influences wildlife at both the individual and community level. In this study, we tested the individual-level effects of ALAN on three species of tadpole prey and their newt predators by measuring prey pigmentation and predator and prey mass. Then we evaluated whether the individual-lev...
Article
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In Central Europe, watercourses are not considered important breeding habitats for most amphibians, including the Alpine newt Ichthyosaura alpestris, for which the reproduction in a lotic habitat has rarely been documented. However, two breeding sites of this species were found during a herpetological survey conducted in the Western Carpathian foot...
Preprint
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In this work we investigate the neutrino pair annihilation around a gravitational object involving an $f(R)$ global monopole. We derive and calculate the ratio $\frac{\dot{Q}}{\dot{Q_{Newt}}}$ meaning that the energy deposition per unit time is over that in the Newtonian case. It is found that the more deviation from general relativity leads more e...
Article
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This study was conducted to find out characteristics of trace element levels and those impacts to organisms at a former uranium (U) mining site. Concentrations of trace elements (Li, Mg, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Se, Rb, Sr, Mo, Cd, Cs, Ba, Pb, Bi, and U) were determined in sediments, water, and three organism types (insects, frogs, and ne...
Article
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Pond physical characteristics (connectivity, hydroperiod) have shown to be highly relevant in explaining species presence, reproductive success, and survival in breeding-pond amphibians. However, few studies have addressed the influence that these factors may have on the genetic variability of pond populations. We examined genetic variation at elev...
Article
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Climate change is a grave danger for humans and a looming threat to Earth's biodiversity in the twenty-first century. Assessing the vulnerability of species to climate change is critical for practical conservation efforts. Due to their limited dispersal ability, amphibians are one of the most vulnerable groups of vertebrates to climate change. Amon...
Article
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Abstract Introductions of non‐native species can pose serious threats to native populations and ecosystems. However, the impact of introduced species depends on intrinsic characteristics, local habitat conditions, and the interaction with native species. Case‐specific management strategies may therefore be required. Using phenotypic characters and...
Article
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Developmental plasticity, a common pattern in lissamphibian evolution, results in numerous alternative morphologies among species and also within populations. In the present study, a natural population of the salamander Taricha granulosa (Salamandridae) was examined to detect variation in the vertebral count and to identify potential deformities of...
Article
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Skin coloration in amphibians is determined by the mixture of three types of pigments. The lack of any of them alters the external appearance of the animal, and may have consequences on its probability of surviving. This note describes the second case of hypopigmentation in a marbled newt (Triturus marmoratus) in Burgos. The lack of black and blue...
Article
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The distribution of the Ziegler’s Crocodile Newt Tylototriton ziegleri Nishikawa, Matsui & Nguyen, 2013 in China has been controversial. This species was originally recorded uncertainly from Guangxi Autonomous Region, China. Subsequently, this species was recorded from Yunnan and Guangdong provinces, China. Thereafter, the record from Guangdong was...
Technical Report
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Monitoring of 30 ponds in Gavere, Melle and Oosterzele (East-Flanders, Belgium) and proposals for 30 new ponds in order to strenghten the local populations of Alpine newt, Smooth Newt, Palmate Newt and Great Crested Newt.
Thesis
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Modern reactor designs with highly-heterogeneous core configurations demand an increased fidelity and accuracy of reactor physics analysis, while the computational resources are still limited for whole-core high-fidelity (HiFi) transport calculations. The two-step approach widely utilized in the large-scale reactor core neutronics calculations is h...
Article
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This report consists of the author’s observations on two fascinating populations of the Alpine newt: Ichthyosaura alpestris apuana in the southwestern Alps and Ichthyosaura alpestris veluchiensis in the northern Peloponnese, Greece. In the westernmost part of the range of Ichthyosaura alpestris apuana, a high altitude lake of 1570 m a.s.l. was visi...