Strontium isotopes ( 87 Sr / 86 Sr ) reveal the life history of freshwater migratory fishes in the La Plata Basin

2020 ◽  
Vol 36 (10) ◽  
pp. 1985-2000
Author(s):  
Esteban Avigliano ◽  
Marc Pouilly ◽  
Julien Bouchez ◽  
Alejandro Domanico ◽  
Sebastian Sánchez ◽  
...  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yamila P. Cardoso ◽  
Luiz Jardim de Queiroz ◽  
Ilham A. Bahechar ◽  
Paula E. Posadas ◽  
Juan I. Montoya-Burgos

AbstractDistribution history of the widespread Neotropical genus Hypostomus was studied to shed light on the processes that shaped species diversity. We inferred a calibrated phylogeny, ancestral habitat preference, ancestral areas distribution, and the history of dispersal and vicariance events of this genus. The phylogenetic and distribution analyses indicate that Hypostomus species inhabiting La Plata Basin do not form a monophyletic clade, suggesting that several unrelated ancestral species colonized this basin in the Miocene. Dispersal to other rivers of La Plata Basin started about 8 Mya, followed by habitat shifts and an increased rate of cladogenesis. Amazonian Hypostomus species colonized La Plata Basin several times in the Middle Miocene, probably via the Upper Paraná and the Paraguay rivers that acted as dispersal corridors. During the Miocene, La Plata Basin experienced marine incursions, and geomorphological and climatic changes that reconfigured its drainage pattern, driving dispersal and diversification of Hypostomus. The Miocene marine incursion was a strong barrier and its retraction triggered Hypostomus dispersal, increased speciation rate and ecological diversification. The timing of hydrogeological changes in La Plata Basin coincides well with Hypostomus cladogenetic events, indicating that the history of this basin has acted on the diversification of its biota.


2006 ◽  
Vol 7 (4) ◽  
pp. 563-575 ◽  
Author(s):  
Alejandro Márquez ◽  
J. E. Maldonado ◽  
S. González ◽  
M. D. Beccaceci ◽  
J. E. Garcia ◽  
...  

2009 ◽  
Vol 14 (2) ◽  
pp. 253-279 ◽  
Author(s):  
Margaret Pinard ◽  
Natalie Kempkey ◽  
Ariel Dinar ◽  
Víctor Pochat

AbstractThe La Plata River Basin in South America, whose waters are shared by Argentina, Bolivia, Brazil, Paraguay and Uruguay, provides important lessons from the long history of negotiations over its shared water and other natural resources. In particular, innovative resource management practices developed over time have led to the relative harmony in which the riparian countries coexist. In this article, we analyze negotiation techniques within the La Plata River Basin by examining in detail the processes leading to the two seminal agreements – the 1969 Treaty of La Plata Basin and the 1979 Itaipú-Corpus Agreement. Based upon our analysis of the complex and often contradictory relationships between the riparian states, we evaluate the outcomes of both treaties from the standpoint of cooperation in the region and sustainable development. In doing so, we extend the relevance of the analysis to other basins with similar issues of regional management. The article extends the basin cooperation, through negotiation, to include trade agreements and development via project partnerships that draw in regional and global actors, including non-governmental organizations, environmental lobbies in foreign countries, and multinational development banks. The above actors are relevant for many parts of the world in today's era of globalization.


2020 ◽  
Author(s):  
Yamila P. Cardoso ◽  
Luiz Jardim de Queiroz ◽  
Ilham A. Bahechar ◽  
Paula E. Posadas ◽  
Juan I. Montoya-Burgos

AbstractDistribution history of the widespread Neotropical genus Hypostomus to shed light on the processes that shaped species diversity. We inferred a calibrated phylogeny; ancestral habitat preference, ancestral areas distribution, and the history of dispersal and vicariance events of this genus. The phylogenetic and distributional analyses indicate that Hypostomus species inhabiting La Plata Basin do not form a monophyletic clade, suggesting that several unrelated ancestral species colonized this basin in the Miocene (∼17 Mya). Dispersal to other rivers of La Plata Basin started about 8 Mya, followed by habitat shifts and an increased rate of cladogenesis. Amazonian Hypostomus species colonized La Plata Basin several times in the Middle Miocene, probably via the Upper Paraná and the Paraguay rivers that acted as biogeographic corridors. During the Miocene, La Plata Basin experienced marine incursions; and geomorphological and climatic changes that reconfigured its drainage pattern, driving the dispersal and diversification of Hypostomus. The Miocene marine incursion was a strong barrier and its retraction triggered Hypostomus dispersal, increased speciation rate and ecological diversification. The timing of hydrogeological changes in La Plata Basin coincides well with Hypostomus cladogenetic events, indicating that the history of this basin has acted on the diversification of its biota.


1990 ◽  
Vol 28 (1) ◽  
pp. 39 ◽  
Author(s):  
S H Lee ◽  
J Y Chai ◽  
S T Hong ◽  
W M Sohn
Keyword(s):  

2016 ◽  
Vol 68 (2-3) ◽  
pp. 243-255 ◽  
Author(s):  
EM de Jesus ◽  
RP da Rocha ◽  
MS Reboita ◽  
M Llopart ◽  
LM Mosso Dutra ◽  
...  

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