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...

New data on some African tarantulas including palpal bulb morphology in Pterinochilus Pocock, 1897 (Araneae: Theraphosidae)

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New data on some African tarantulas including palpal bulb morphology in Pterinochilus Pocock, 1897 (Araneae: Theraphosidae)

Abstract
We catalogue the theraphosids of the subfamilies Harpactirinae and Stromatopelminae housed in the Zoological Institute of the Russian Academy of Sciences, Saint Petersburg. The first record of Pterinochulus raygabrieli Gallon, 2009 from Ethiopia is presented with discussion on the bulb morphology of this species, alongside faunistic data on Eucratoscelus constrictus (Gerstaecker, 1873) and Pterinochilus murinus Pocock, 1897 in Kenya, Idiothele nigrofulva (Pocock, 1898) in South Africa, and Stromatopelma calceatum (Fabricius, 1793) in Guinea. 

Bariev, Timur & Sherwood, Danniella. (2025). New data on some African tarantulas including palpal bulb morphology in Pterinochilus Pocock, 1897 (Araneae: Theraphosidae). rej. 34. 58-63. 

Special thanks to Danni Sherwood for providing this paper via ResearchGate