Global diversification of Anelosimus spiders driven by long distance overwater dispersal and Neogene climate oscillations

Ingi Agnarsson, Yufa Luo, Seok Ping Goh, Daiqin Li, Marcelo Gonzaga, Adalberto Santos, Aiko Tanikawa, Hajime Yoshida, Charles Haddad, Laura May-Collado, Eva Turk, Matjaz Gregoric & Matjaz Kuntner
Vicariance and dispersal events, combined with intricate global climatic history, have left an imprint on the spatiotemporal distribution and diversity of many organisms. Anelosimus cobweb spiders (Theridiidae), are solitary-social organisms with a cosmopolitan distribution in temperate- to-tropical areas. Their evolutionary history and the discontinuous distribution of species richness suggest that 1) long distance overwater dispersal, and 2) climate change during the Neogene (23–2.6 Ma), may be major factors in explaining their distribution and diversification. Here...
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