Tectonic history and the biogeography of the freshwater fishes from the coastal drainages of eastern Brazil: an example of faunal evolution associated with a divergent continental margin
By A. C. Ribeiro. 2006
317 citations recorded by the source corpus.
The eastern Brazilian coastal drainages are of great biogeographical significance, because of their highly endemic fish faunas. Phylogenetic patterns suggest a close biotic relationship between the rivers that flow into the Atlantic and those on the adjacent upland crystalline shield. However, little has been said on the dynamics of the geological processes causally related to the cladogenetic events between these areas. Distributional and phylogenetic patterns suggest a close association with the geological history of the passive continental margin of South America, from the Cretaceous to the present day. In this area megadome uplifts, rifting, vertical movements between rifted blocks and the erosive retreat of the South American eastern continental margin are hypothesized as the main geological forces controlling the distribution of freshwater fishes. The tectonic activity associated with the break-up of Gondwana and separation of South America and Africa formed six megadomes that control most of the current courses of the main crystalline shield river basins. Except for basins located at the edges of such megadomes, these river systems developed long, circuitous routes over the ancient Brazilian crystalline shield before emptying into the recently opened Atlantic Ocean. Initial cladogenetic events between upland crystalline drainages and Atlantic tributaries were probably associated with vicariant processes, and some ancient basal sister-groups of widespread inclusive taxa are found in these coastal hydrographic systems. Later, generalized erosive denudation resulted in an isostatic adjustment of the eastern margin of the platform. These, along with reactivations of ancient rifts led to vertical movements between rifted blocks and gave rise, in southeastern Brazil, to taphrogenic (rift related) basins. These basins, such as the Taubate, Sao Paulo, Curitiba and Volta Redonda basins, among others, captured adjacent upland drainages and fauna. The fossil fishes from the Tremembe Formation (Eocene-Oligocene of Taubate Basin) exemplify this process. Other taphrogenic systems of Tertiary age were also identified in other segments of the Atlantic continental margin, such as in Borborema province, in NE Brazil, with marked influence over drainage patterns. At the same time, erosive retreat of the eastern margin of the platform successively captured upland rivers, which became Atlantic tributaries evolving associated to main rift systems. The continued nature of these processes explains the mixed phylogenetic and distributional patterns between Atlantic tributaries and the upland crystalline shield areas, especially in the southeastern continental margin, represented by successively, less inclusive sister-groups associated with cladogenetic events from the Late Cretaceous to the present.
Subfields: Aquatic Science, Nature and Landscape Conservation
View Paper: https://www.semanticscholar.org/paper/c6eecba9d934c24a345e21c60347d446b4da0962
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Citations in the corpus
- The changing course of the Amazon River in the Neogene: center stage for Neotropical diversification (2018, background): “Prior to rifting, the predominant flow of drainages in the South American portion of Western Gondwana was to the west, away from highlands located along the rift zone (Ribeiro et al ., 2006; Mapes 2009; Hur-tado et al. , 2018).”
- The Fishes of the Amazon: Distribution and Biogeographical Patterns, with a Comprehensive List of Species (2019, background): “…form the basis for a historical biogeography of these fishes: Eigenmann (1909), Géry (1969), Vari (1988), Jégu (1992a, 1992b), Hubert and Renno (2006), Ribeiro (2006), Albert et al. (2011), Albert and Carvalho (2011), Lima and Ribeiro (2011), Ribeiro et al. (2013), and Dagosta and Pinna (2017).”
- Diversidade da ictiofauna do Alto Rio Paraná: composição atual e perspectivas futuras (2007, background): “…também em drenagens vizinhas, tais como: rios Paraíba do Sul, Ribeira de Iguape e algumas drenagens litorâneas menores (Langeani 1989, Weitzman & Malabarba 1999, Ribeiro 2006, Ribeiro et al. 2006, Serra et al. 2007), ou ainda no Rio São Francisco (Britski et al. 1988, Britto & Castro 2002).”
- Testing the effect of palaeodrainages versus habitat stability on genetic divergence in riverine systems: study of a Neotropical fish of the Brazilian coastal Atlantic Forest (2015, result): “However, these events pre-date the Pleistocene, in contrast to our genetic data, which supports population divergences that date to the Pleistocene – a period for which relatively few river captures have been documented (e.g. Upper Tietê/Guaratuba and Iguac u; Ribeiro, 2006; Ribeiro et al., 2006; Me”