Evolutionary biogeography and diversification of Ampithoidae (Crustacea, Amphipoda) in the southwestern Atlantic

Author(s)

Iwasa-Arai, Tammy ; Siqueira, Silvana G. L. ; Andrade, Sonia C. S. ; Leite, Fosca P. P.

• Document type: Journal article
• Source: ZOOLOGICA SCRIPTA; v. N/A, p. 12-pg., 2024-09-26.

Abstract

The crustacean family Ampithoidae is one of the most abundant invertebrate families associated with macroalgae in shallow marine waters. Ampithoe, the largest genus, was previously documented as non-monophyletic by phylogenetic analyses based on morphological and molecular characters. Here, we reconstructed a multi-gene phylogeny of Ampithoidae with the first data of the southwestern Atlantic Ocean. We performed the first biogeographic analyses for the family, which indicated its origin in the Indo-West Pacific, with subsequent dispersion to the Atlantic Ocean around the Eocene. Divergence times suggest that the diversification of Ampithoidae is congruent with the brown algae crown radiation, which allowed the colonization of new environments. (AU)

• FAPESP's process: 18/00488-7 - Species delimitation, comparative phylogeography and conectivity of Peracarida (Crustacea: Eumalacostraca) associated with Sargassum in Brazil with emphasis on insular populations
• Grantee: Tammy Iwasa Arai
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 18/10313-0 - Build-up of scientific collections of marine invertebrates: strategies for biodiversity conservation
• Grantee: Antonia Cecília Zacagnini Amaral
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
• FAPESP's process: 17/16837-8 - Protection efficiency in coastal habitats: an integrated approach in the study of macrophyte and associated invertebrates diversity at areas under different conservation status
• Grantee: Fosca Pedini Pereira Leite
• Support Opportunities: BIOTA-FAPESP Program - Regular Research Grants