The liver, a crucial organ for metabolic processes, has a generally uniform histological structure across amphibian taxa. However, ontogenetic changes, particularly those related to biphasic life cycle and metamorphosis, are less documented. Here, we explored and described the liver histology of an emerging model organism, the Balkan crested newt (Triturus ivanbureschi) at three ontogenetic stages: larval, juvenile (just after metamorphosis) and adult.
View Article and Find Full Text PDFThere is an increased interest in the evolution and development of newts from the genus Triturus because: (1) morphological differentiation among the nine constituent species largely corresponds to different ecological preferences, (2) hybridization between different species pairs has various evolutionary outcomes in terms of life history traits and morphology, and (3) the genus expresses a balanced lethal system that causes arrested growth and death of half of the embryos. These features provide natural experimental settings for molecular, morphological, and life-history studies. Therefore, we produce a staging table for the Balkan crested newt (T.
View Article and Find Full Text PDFThe COVID-19 pandemic caused multiple stressors that may lead to symptoms of adjustment disorder. We longitudinally examined relationships between risk and protective factors, pandemic-related stressors and symptoms of adjustment disorder during the COVID-19 pandemic, as well as whether these relationships differed by the time of assessment. The European Society for Traumatic Stress Studies (ESTSS) ADJUST Study included = 15,169 participants aged 18 years and above.
View Article and Find Full Text PDFThe modular organization of tetrapod paired limbs and girdles, influenced by the expression of Hox genes is one of the primary driving forces of the evolution of animal locomotion. The increased morphological diversification of the paired limbs is correlated with reduced between-limb covariation, while correlation within the elements is usually higher than between the elements. The tailed amphibians, such as Lissotriton newts, have a biphasic lifestyle with aquatic and terrestrial environments imposing different constraints on limb skeleton.
View Article and Find Full Text PDFInt J Environ Res Public Health
September 2023
The present study aimed to investigate the trajectories of adjustment disorder (AD) symptoms and well-being over 20 months of the COVID-19 pandemic in Austria and Croatia. Further objectives of this study were to examine whether sociodemographic characteristics and the symptoms of anxiety and depression could predict these trajectories. As part of the pan-European ESTSS ADJUST study, = 1144 individuals were recruited using convenience sampling and assessed four times between June 2020 and January 2022 through an online survey.
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