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Joana Xavier


Joana R. Xavier

Partner Institution: UAzores

Country: Portugal

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PhD in Systematics and Evolutionary Biology (2009, University of Amsterdam), I'm a sponge taxonomist and a marine evolutionary biologist currently doing postdoctoral research at the Research Centre in Biodiversity and Genetic Resources (CIBIO). My main research interests concern the biodiversity, ecology and evolution of both shallow and deep-sea marine sponges (Porifera). I'm particularly interested in understanding large-scale diversity and biogeographic patterns and the role of ecological and historical factors in shaping those patterns. My research geographical area comprises the Northeast Atlantic and Mediterranean with a special focus on the Macaronesian islands and seamount communities. To address these topics I use taxonomic, systematic, ecological and molecular data in an integrative approach.


Selected papers

Xavier JR, Rachello-Dolmen PG, Parra-Velandia F, Schönberg CHL, Breeuwer JAJ, Van Soest RWM 2010. Molecular evidence of cryptic speciation in the "cosmopolitan" excavating sponge Cliona celata (Porifera, Clionaidae). Molecular Phylogenetics and Evolution 56, 13-20.


 Reveillaud J, Remerie T, Van Soest RWM, Erpenbeck D, Cárdenas P, Sofie Derycke S, Xavier JR, Rigaux A, Vanreusel A 2010. Species boundaries and phylogenetic relationships between Atlanto-Mediterranean shallow-water and deep-sea coral associated Hexadella species (Porifera, Ianthellidae). Molecular Phylogenetics and Evolution 56, 104-114.


Webster N, Xavier JR, Freckleton M, Motti C, Cobb R 2008. Shifts in microbial and chemical patterns within the marine sponge Aplysina aerophoba during a disease outbreak. Environmental Microbiology 10(12), 3366-3376.


Xavier JR, Van Soest RWM 2007. Demosponge fauna of Ormonde and Gettysburg Seamounts (Gorringe Bank, Northeast Atlantic): diversity and zoogeographical affinities. J. Mar. Biol. Ass. U. K. 87, 1643-1653.