First insights into the role of evolutionary history in shaping venom composition of Vipera ammodytes

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  First insights into the role of evolutionary history in shaping venom composition of Vipera ammodytes Abstract Understanding intraspecific venom variation requires distinguishing the contributions of neutral population history from natural selection. This study aims to determine whether venom variation in the Vipera ammodytes species complex is structured across eight phylogenetic lineages. Despite a complex evolutionary history, venom composition did not differ among phylogenetic units within the analytical framework used, suggesting that shared ancestry alone does not explain venom variation. Whether local adaptation to environmental conditions explains the observed variation remains an open question for future studies. Lakušić, M., Piccoli, C., Anđelković, M., Andonov, K., Burić, I., Brito, J. C., Dyugmedzhiev, A., Merdan, S., Schmid, L., Tzoras, E., Florian-Hempel, B., & Martínez-Freiría, F. (2026). First insights into the role of evolutionary history in shaping venom co...

Diversity of spiders in Daba Mountain National Nature Reserve, Chongqing, China (II): Two new species of Hahniidae (Arachnida, Araneae)

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Diversity of spiders in Daba Mountain National Nature Reserve, Chongqing, China (II): Two new species of Hahniidae (Arachnida, Araneae)

Abstract

Two new species of Hahniidae, Hahnia dabashan Cai, Wang & Zhang, sp. nov. (♂) and Sinahahnia chengkou Cai, Wang & Zhang, sp. nov. (♂♀), are described and illustrated with photographs and drawings, based on material from Daba Mountain National Nature Reserve in Chongqing, southwestern China.

Cai Y-J, Wang L-Y, Zhu B-C, Lu W, Zhang Z-S (2025) Diversity of spiders in Daba Mountain National Nature Reserve, Chongqing, China (II): Two new species of Hahniidae (Arachnida, Araneae). ZooKeys 1254: 217-224. https://doi.org/10.3897/zookeys.1254.154722