Snapshot: FROM ECOLOGICAL DISASTER TO CONSTITUTIONAL CRISIS: DAMS ON BRAZIL'S XINGU RIVER

2016 ◽  
pp. 454-459
Keyword(s):  
Xingu River ◽  
Ecological Disaster

scholarly journals Trends in climate extreme indices assessed in the Xingu river basin - Brazilian Amazon

2021 ◽  
Vol 31 ◽  
pp. 100306
Author(s):  
Edmundo Wallace Monteiro Lucas ◽  
Francisco de Assis Salviano de Sousa ◽  
Fabrício Daniel dos Santos Silva ◽  
Rodrigo Lins da Rocha Júnior ◽  
David Duarte Cavalcante Pinto ◽  
...  
Keyword(s):  
River Basin ◽  
Brazilian Amazon ◽  
Climate Extreme ◽  
Xingu River ◽  
Extreme Indices

scholarly journals Re-living a Common Future in the Face of Ecological Disaster: Exploring (Elements of) Guarani and Kaiowá Collective Memories, Political Imagination, and Critiques

Human Arenas ◽  
2021 ◽  
Author(s):  
Susanne Normann
Keyword(s):  
Climate Change ◽  
Collective Memory ◽  
Growth Models ◽  
Political Imagination ◽  
Green Growth ◽  
Collective Memories ◽  
Mato Grosso ◽  
Ecological Disaster ◽  
The Face ◽  
Group Interviews

AbstractHow to re-member a fragmented world while climate change escalates, and green growth models reproduce coloniality, particularly in Indigenous territories? What can be the concrete contributions from different scholarly disciplines to a broader decolonial project? These questions are debated by decolonial scholars who call to re-think our practices within academic institutions and in the fields that we study. This article contributes with a decolonial perspective to sociocultural psychology and studies on Indigenous knowledges about climate change. Through ethnographic methods and individual and group interviews, I engage with indigenous Guarani and Kaiowá participants’ knowledges and practices of resilience opposing green growth models in the Brazilian state Mato Grosso do Sul. Their collective memory of a different past, enacted through narratives, rituals, and social practices, was fundamental to imagine different possible futures, which put in motion transformation processes. Their example opens a reflection about the possibilities in connecting sociocultural psychology’s work on collective memory and political imagination to the broader decolonial project, in supporting people’s processes of re-membering in contexts of adverse conditions caused by coloniality and ecological disaster.

Effects of the Belo Monte hydro-electric-dam complex on crocodilians in the Xingu River, Brazilian Amazonia

2021 ◽  
pp. 1-8
Author(s):  
Zilca Campos ◽  
Fábio Muniz ◽  
William E. Magnusson ◽  
Guilherme Mourão
Keyword(s):  
Water Level ◽  
Xingu River ◽  
Hydroelectric Dam ◽  
River Reservoir ◽  
Before And After ◽  
Collateral Effects ◽  
Generating Capacity ◽  
Reservoir Filling ◽  
Belo Monte

Abstract The Belo Monte hydroelectric dam on the Xingu River has the third largest generating capacity of any hydroelectric dam in the world. We conducted surveys of crocodilians (Caiman crocodilus, Paleosuchus trigonatus) by boat in the Xingu River at the site of the dam prior to (2013-2015), and after filling (2016-2017). While the number of C. crocodilus sighted decreased with increasing water level, there was no difference in numbers prior to, and after reservoir filling. The number of P. trigonatus was unaffected by both water level prior to and after reservoir filling. Reservoir filling had little effect on the number of crocodilians using the forest around the Xingu River reservoir. Most crocodilians seen in forest surveys were P. trigonatus, both before and after reservoir filling, but C. crocodilus was recorded occasionally in the forest. It seems that most Amazonian crocodilians are sufficiently generalist to adapt to the new conditions created by the construction of dams, at least in the short-term. However, there may be long-term collateral effects on crocodilian populations from dams, due to as deforestation and improved access for hunters.

scholarly journals Population and biological parameters of selected fish species from the middle Xingu River, Amazon Basin

2015 ◽  
Vol 75 (3 suppl 1) ◽  
pp. 112-124 ◽  
Author(s):  
M. Camargo ◽  
T. Giarrizzo ◽  
VJ. Isaac
Keyword(s):  
Fish Species ◽  
Growth Rates ◽  
Amazon Basin ◽  
High Growth ◽  
Life Cycles ◽  
Biological Parameters ◽  
High Productivity ◽  
Xingu River ◽  
Biological Yield ◽  
Belo Monte

Abstract This study estimates the main biological parameters, including growth rates, asymptotic length, mortality, consumption by biomass, biological yield, and biomass, for the most abundant fish species found on the middle Xingu River, prior to the construction of the Belo Monte Dam. The specimens collected in experimental catches were analysed with empirical equations and length-based FISAT methods. For the 63 fish species studied, high growth rates (K) and high natural mortality (M) were related to early sexual maturation and low longevity. The predominance of species with short life cycles and a reduced number of age classes, determines high rates of stock turnover, which indicates high productivity for fisheries, and a low risk of overfishing.

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