Broad-Scale Climatic Gradients Drive Multiple Facets of Scorpion Beta Diversity in Northeastern Brazil

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  Broad-Scale Climatic Gradients Drive Multiple Facets of Scorpion Beta Diversity in Northeastern Brazil ABSTRACT Aim Beta diversity analyses clarify mechanisms structuring ecological communities, but their multidimensional facets remain poorly explored in arthropods. Here, we quantified taxonomic, phylogenetic, and functional beta diversity in scorpions, partitioned these facets into species replacement and richness differences, and evaluated the relative importance of spatial structure and environmental conditions in driving community assembly. Location Northeastern Brazil, South America. Taxon Scorpions (Arachnida: Scorpiones). Methods Taxonomic beta diversity was estimated using species presence across 70 sites in northeastern Brazil. Phylogenetic turnover was calculated from a multi-locus molecular tree, and functional beta diversity was derived from morphometric and ecological traits. All beta diversity facets were decomposed into replacement and richness-difference component...

Three new Cybaeodamus Mello-Leitão, 1938 species from Brazil (Araneae, Zodariidae)

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Three new Cybaeodamus Mello-Leitão, 1938 species from Brazil (Araneae, Zodariidae)

Abstract

Three new Brazilian species of the zodariid genus Cybaeodamus Mello-Leitão, 1938 are described: C. ampullatus sp. nov. (♂♀), C. spinosissimus sp. nov. (♂) and C. malkini sp. nov. (♂). Descriptions are accompanied with high-quality illustrations and microphotographs. An updated distribution map and a key to all the species in the genus are presented. The morphological diagnostic characters of the genus are discussed.

Henrard, A., Jocqué, R., & Carvalho, L. S. (2025). Three new Cybaeodamus Mello-Leitão, 1938 species from Brazil (Araneae, Zodariidae). European Journal of Taxonomy, 1004(1), 92–119. https://doi.org/10.5852/ejt.2025.1004.2965