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 ...

Spiders (Arachnida: Araneae) from Jalisco, Mexico: Synthesis of current knowledge of its diversity

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Spiders (Arachnida: Araneae) from Jalisco, Mexico: Synthesis of current knowledge of its diversity

ABSTRACT

Current knowledge of spider diversity in Jalisco state is limited; the number of species known  for  the  state  is  only  from  three  bibliographic  compilations  related  to  spider  diversity  in  Mexico. The objective of this work was to gather information about the spider diversity in Jalisco to update the faunal checklist of its species, through an exhaustive bibliographic review. A total of 118 works were found where spider species were recorded for Jalisco. Based on these, a total of 237 species are listed, grouped into 120 genera and 36 families. The best represented families are: Theridiidae (40 species), Salticidae (36), Araneidae (35), Gnaphosidae (19) and Oxyopidae (11). With this  information,  the  number  of  spider  species  reported  for  Jalisco  increased  by  46%,  currently  occupying ninth place nationwide in terms of species diversity.

Orozco-Gil, Miguel, Gerardo Adalberto Contreras-Félix, y José Luis Navarrete Heredia. 2024. «Arañas (Arachnida: Araneae) De Jalisco, México: Síntesis Del Conocimiento Actual De Su Diversidad». ACTA ZOOLÓGICA MEXICANA (N.S.) 40 (1):1-23. https://doi.org/10.21829/azm.2024.4012685.