Venom composition of the Iberian adder (Vipera seoanei) from northern Portugal reveals limited sex and size variation

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  Venom composition of the Iberian adder (Vipera seoanei) from northern Portugal reveals limited sex and size variation Abstract Snake venom is a complex and dynamic ecological trait, with high potential for intraspecific variation. In this study, the venom composition of the Iberian adder ( Vipera seoanei ) from the Peneda Mountains of northern Portugal was investigated to explore whether venom varies with body size and sex. Venom proteomes from six individuals representing juvenile, subadult, and adult males and females were characterised using LC–MS/MS, while individual variation was assessed from SDS–PAGE profiles of 18 snakes. LC–MS/MS identified 144 proteins, dominated by phospholipases A 2 (PLA 2 ), snake venom serine proteases (svSP), and C-type lectin-related proteins (CTL). Descriptive comparisons revealed contrasting individual profiles, particularly between the juvenile male, characterised by high svSP and svMP abundance, and the juvenile female, characterised by high ...

Mexican Scorpions Described between 2000 - 2023: Analysis from Zoological Records of Patterns, Trends, and Effects of Lockdown Over Descriptions

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Mexican Scorpions Described between 2000 - 2023: Analysis from Zoological Records of Patterns, Trends, and Effects of Lockdown Over Descriptions

Abstract

Patterns of descriptions of new species of Mexican scorpions between 2000-2023 were analyzed. We based our study on the Zoological Record of Web of ScienceTM. We found 111 species in seven families described in 83 papers published in scientific journals from all over the world. Families with the most species described were Vaejovidae (52), Buthidae (26), Diplocentridae (23), Euscorpiidae (4), and Typhlochactas (3). The species of Mexican scorpions were described in Revista Mexicana de Biodiversidad, Zootaxa, Revista Ibérica de Aracnología, and 19 other publications. We also comment on issues to consider when Zoological Record was used for analysis in this study.

Gerardo A. Contreras-Félix, José L. Navarrete-Heredia "Mexican Scorpions Described between 2000 - 2023: Analysis from Zoological Records of Patterns, Trends, and Effects of Lockdown Over Descriptions," Southwestern Entomologist, 49(1), 100-119, (11 April 2024) https://doi.org/10.3958/059.049.0109