Tropical freshwater ecosystems in transition

1987 ◽  
Vol 20 (3) ◽  
pp. 233-236
Author(s):  
Mary E. Power
Keyword(s):  
Freshwater Ecosystems ◽  
Tropical Freshwater

scholarly journals Odonata (Insecta) from Nova Xavantina, Mato Grosso, Central Brazil: Information on species distribution and new records

Check List ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 299 ◽  
Author(s):  
Lenize Batista Calvão ◽  
Paulo De Marco Júnior ◽  
Joana Darc Batista
Keyword(s):  
Species Distribution ◽  
New Records ◽  
Freshwater Ecosystems ◽  
Species List ◽  
Mato Grosso ◽  
Central Brazil ◽  
Fixed Area ◽  
Freshwater Environments ◽  
Tropical Freshwater

Odonates are found in all freshwater environments, and are specially species rich in tropical freshwater ecosystems. Currently about 800 odonate species are known to Brazil, but only 29% of the Brazil territory have been surveyed for this group. Here we provide a species list with information on distribution and new records for Odonata in nine streams in Nova Xavantina, Mato Grosso, Central Brazil. We used the scan procedure with a fixed area for three days in each stream between 10:00 and 14:00h. We collected 1038 dragonfly specimens belonging to 67 species, which represents 8% of the known Brazil odonate fauna. Additionally, five new records for the study area are presented.

scholarly journals Tropical freshwater ecosystems have lower bacterial growth efficiency than temperate ones

2013 ◽  
Vol 4 ◽  
Author(s):  
André M. Amado ◽  
Frederico Meirelles-Pereira ◽  
Luciana O. Vidal ◽  
Hugo Sarmento ◽  
Albert L. Suhett ◽  
...  
Keyword(s):  
Bacterial Growth ◽  
Growth Efficiency ◽  
Freshwater Ecosystems ◽  
Bacterial Growth Efficiency ◽  
Tropical Freshwater

scholarly journals The challenge of restoring tropical freshwater ecosystems

2019 ◽  
Vol 31 ◽  
Author(s):  
Reinaldo Luiz Bozelli
Keyword(s):  
Aquatic Environment ◽  
Integrated Management ◽  
Freshwater Ecosystems ◽  
Native Vegetation ◽  
Aquatic Environments ◽  
Ecological Processes ◽  
Ecological Information ◽  
Tropical Freshwaters ◽  
Paris Climate Agreement ◽  
Tropical Freshwater

Abstract We are living a growing worldwide process of degrading the bases of sustaining life. In Brazil, this threat is intensified by the growing fragility of environmental protection structures. Ecological restoration is an alternative to face the degradation of aquatic environments. It has been employed on a larger scale in the developed regions of the planet, but with little convincing results. In Brazil, the experiences are few and specific, limited mainly by complexity and costs. It is necessary to think in a more agile way and act within the possibilities. The restoration with its classic strategies should give way to an “urgent restoration”. This approach considers that we have the basic ecological information and professionals able to act in the resumption of control of the ecological processes that have been altered. Restoration in the condition of urgency implies beginning to think of protection, as a first step, turning attention to the management of the watershed. The way to regain control of the process where it was lost is the integrated management that involves the rational use and protection of the ecosystem. Brazil’s commitment to the Paris climate agreement to restore 12 million hectares of forests and the restoration liabilities on private properties because of the recent Native Vegetation Protection Law are excellent opportunities to act in the integrated management of the river basin and to promote the protection of freshwaters by the restoration of native forests. The restoration of tropical freshwaters and especially the Brazilian ones is something urgent. However, possible solutions must be thought of and can only be constructed when one get involved most people related to the issue. The idea to be nurtured is that restoration involves thinking about the watershed because the threats are beyond the aquatic environment itself, the restoration then also needs to go beyond the aquatic environment itself.

scholarly journals New insights on the relation between zooplankton and humic substances in tropical freshwater ecosystems

2021 ◽  
Vol 93 (4) ◽  
Author(s):  
CLARICE C. NOVA ◽  
ADRIANA M. ROCHA ◽  
CHRISTINA W.C. BRANCO ◽  
REINALDO L. BOZELLI
Keyword(s):  
Humic Substances ◽  
Freshwater Ecosystems ◽  
Tropical Freshwater

Tropical freshwater ecosystems, biota and anthropogenic activities with reference to South-East Asia.

2020 ◽  
pp. 19-43
Author(s):  
Jia Huan Liew ◽  
Rayson B. H. Lim ◽  
Bi Wei Low ◽  
Maxine A. D. Mowe ◽  
Ting Hui Ng ◽  
...  
Keyword(s):  
East Asia ◽  
Anthropogenic Activities ◽  
Freshwater Ecosystems ◽  
South East Asia ◽  
Tropical Freshwater

Tropical Freshwater Ecosystems

2012 ◽  
pp. 109-158
Author(s):  
Sven E. Jørgensen ◽  
Jose Galizia Tundisi ◽  
Takako Matsumura Tundisi
Keyword(s):  
Freshwater Ecosystems ◽  
Tropical Freshwater

scholarly journals Geospatial distribution of viromes in tropical freshwater ecosystems

2018 ◽  
Vol 137 ◽  
pp. 220-232 ◽  
Author(s):  
Xiaoqiong Gu ◽  
Qi Xiang Martin Tay ◽  
Shu Harn Te ◽  
Nazanin Saeidi ◽  
Shin Giek Goh ◽  
...  
Keyword(s):  
Freshwater Ecosystems ◽  
Tropical Freshwater
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