Snakebite knowledge among healthcare workers in Gabon: A health facility-based cross-sectional survey

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  Snakebite knowledge among healthcare workers in Gabon: A health facility-based cross-sectional survey Abstract Background Snakebite envenoming remains a neglected health issue in many countries, including Gabon, where the limited availability of snakebite-specific training, clinical guidelines, and essential resources at health facilities may lead to gaps in healthcare workers’ knowledge and confidence and the use of non-recommended treatment practices. This study aimed to assess healthcare workers’ knowledge of snakebite management in the Ogooué et des Lacs department of Moyen-Ogooué province in Gabon. Methods From June to August 2023, we conducted a cross-sectional survey targeting all healthcare workers in Ogooué et des Lacs who may be involved in snakebite management. We collected information on prior training, self-perceived knowledge of snakebite management, symptom recognition, clinical management practices, and snake identification. Knowledge was assessed using 10 true/fa...

The history of short-tailed whip scorpions: changes in body size and flagellum shape in Schizomida

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The history of short-tailed whip scorpions: changes in body size and flagellum shape in Schizomida

Abstract

Representatives of Schizomida, known as short-tailed whip scorpions, are an understudied group within Megoperculata. They are found subterraneanly in tropical and sub-tropical regions. They lack eyes, have superior mobility, and possess a flagellum which is relevant to their mating, but in general little is known about their general biology. Fossil representatives of Schizomida from a variety of time periods are available for study. Using 23 fossil specimens (14 of which are described here for the first time) and 86 extant individuals from the literature, changes in both body size and flagella shape in Schizomida were compared over time. Measurements of prosoma length and leg length were used as a proxy for body size, and a comparative size analysis was carried out. Individuals from the Cretaceous period were found to be significantly smaller than extant individuals, contrary to our expectations. For flagellum shape, images were used to create reconstructions, which were then analysed using an elliptic Fourier analysis followed by a principal component analysis. The morphological diversity of the male flagellum shape was found to have decreased significantly between the Cretaceous and modern fauna. We discuss potential explanations for our findings, although a greater understanding of the general biology of Schizomida is required to properly interpret our results.


Belojević, J., Mortier, M.S., Oberweiser, M.M. et al. The history of short-tailed whip scorpions: changes in body size and flagellum shape in Schizomida. Swiss J Palaeontol 143, 24 (2024). https://doi.org/10.1186/s13358-024-00321-w