Biogeography and ecological setting of Indian Ocean hydrothermal vents.
Within the endemic invertebrate faunas of hydrothermal vents, five biogeographic provinces are recognized. Invertebrates at two Indian Ocean vent fields (Kairei and Edmond) belong to a sixth province, despite ecological settings and invertebrate-bacterial symbioses similar to those of both western Pacific and Atlantic vents. Most organisms found at these Indian Ocean vent fields have evolutionary affinities with western Pacific vent faunas, but a shrimp that ecologically dominates Indian Ocean vents closely resembles its Mid-Atlantic counterpart. These findings contribute to a global assessment of the biogeography of chemosynthetic faunas and indicate that the Indian Ocean vent community follows asymmetric assembly rules biased toward Pacific evolutionary alliances.
Van Dover, CL; Humphris, SE; Fornari, D; Cavanaugh, CM; Collier, R; Goffredi, SK; Hashimoto, J; Lilley, MD; Reysenbach, AL; Shank, TM; Von Damm, KL; Banta, A; Gallant, RM; Gotz, D; Green, D; Hall, J; Harmer, TL; Hurtado, LA; Johnson, P; McKiness, ZP; Meredith, C; Olson, E; Pan, IL; Turnipseed, M; Won, Y; Young, CR; Vrijenhoek, RC
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