Sediment and nutrient deposition in different riparian forests and floods of the Middle Paraná River

Ecohydrology ◽  
2019 ◽  
Vol 13 (1) ◽  
Author(s):  
Zuleica Yael Marchetti ◽  
Ernesto Segundo Massa ◽  
Federico Brumnich
Keyword(s):  
Paraná River ◽  
Riparian Forests ◽  
Nutrient Deposition ◽  
Parana River ◽  
Middle Paraná

NDVI patterns as indicator of morphodynamic activity in the middle Paraná River floodplain

Geomorphology ◽  
2016 ◽  
Vol 253 ◽  
pp. 146-158 ◽  
Author(s):  
Z.Y. Marchetti ◽  
P.G. Minotti ◽  
C.G. Ramonell ◽  
F. Schivo ◽  
P. Kandus
Keyword(s):  
Paraná River ◽  
River Floodplain ◽  
Parana River ◽  
Paraná River Floodplain ◽  
Middle Paraná

Relationship between Morphology and Trophic Ecology in an Assemblage of Passerine Birds in Riparian Forests of the Paraná River (Argentina)

2018 ◽  
Vol 11 (1) ◽  
pp. 44-53 ◽  
Author(s):  
Virginia Quiroga ◽  
Rodrigo E. Lorenzón ◽  
Gisela Maglier ◽  
Ana L. Ronchi-Virgolini
Keyword(s):  
Trophic Ecology ◽  
Riparian Forest ◽  
A Priori ◽  
Bird Species ◽  
Morphological Characteristics ◽  
Paraná River ◽  
Riparian Forests ◽  
Phylogenetic Constraint ◽  
Parana River ◽  
Coexisting Species

We describe the ecomorphology of an assemblage of bird species found in riparian forests of the Middle Paraná River, Argentina. We sought to determine (1) the more important morphological characteristics that separate coexisting species, (2) whether such separation was related to the trophic ecology of each species and (3) whether a priori guilds showed morphological similarity. We tested the hypotheses that (a) a species’ morphology is related to the trophic ecology of that species and (b) that species of a priori guilds are morphometrically more similar to each other than to species of different a priori guilds. For this, we considered an assemblage of 29 species of birds from riparian forest that were sampled with mist nets during the 2011 and 2014 breeding seasons. We obtained morphometric measurements of captured individuals and supplemented those data with measurements from museum specimens. Trophic characterisation (diet and trophic microhabitat) was based on a literature review. Results showed a separation of bird species as a function of variables related to trophic ecology (diets and trophic microhabitats) and morphology. After controlling for phylogenetic constraint, species’ morphology partially reflected the trophic ecology of the species, supporting the central hypothesis of the ecomorphological discipline and showing that the use of trophic and morphometric data provides complementary data to improve the guild organisation of riparian bird assemblages.

scholarly journals Novel Diversity of Deeply Branching Holomycota and Unicellular Holozoans Revealed by Metabarcoding in Middle Paraná River, Argentina

2018 ◽  
Vol 6 ◽  
Author(s):  
Alicia S. Arroyo ◽  
David López-Escardó ◽  
Eunsoo Kim ◽  
Iñaki Ruiz-Trillo ◽  
Sebastián R. Najle
Keyword(s):  
Paraná River ◽  
Parana River ◽  
Middle Paraná

scholarly journals Decomposition of cattle manure and colonization by macroinvertebrates in sediment of a wetland of the Middle Paraná River

2016 ◽  
Vol 16 (9) ◽  
pp. 2316-2325 ◽  
Author(s):  
Leticia M. Mesa ◽  
Cecilia Maldini ◽  
Gisela Mayora ◽  
Miguel Saigo ◽  
Mercedes Marchese ◽  
...  
Keyword(s):  
Paraná River ◽  
Cattle Manure ◽  
Parana River ◽  
Middle Paraná

Nutrient Dynamics in Wetlands of the Middle Paraná River Subjected to Rotational Cattle Management

Wetlands ◽  
2015 ◽  
Vol 35 (6) ◽  
pp. 1117-1125 ◽  
Author(s):  
Leticia Mesa ◽  
Gisela Mayora ◽  
Miguel Saigo ◽  
Federico Giri
Keyword(s):  
Nutrient Dynamics ◽  
Paraná River ◽  
Parana River ◽  
Cattle Management ◽  
Middle Paraná

Range extension for three species of South American freshwater crabs (Crustacea: Decapoda: Trichodactylidae)

Zootaxa ◽  
2009 ◽  
Vol 1977 (1) ◽  
pp. 49-54 ◽  
Author(s):  
PABLO A. COLLINS ◽  
FEDERICO GIRI ◽  
VERÓNICA WILLINER
Keyword(s):  
Amazon Basin ◽  
New Records ◽  
Paraná River ◽  
South American ◽  
Crab Species ◽  
Southern South America ◽  
Parana River ◽  
The North ◽  
Freshwater Crabs ◽  
Middle Paraná

New sampling programs have extended the distribution of three species of freshwater crabs (family Trichodactylidae): Dilocarcinus septemdentatus and Sylviocarcinus pictus from the Amazon basin to southern South America, and S. australis, from the north of Argentina southwards. The three species are now found in the floodplain of the middle Paraná River (31°39'S, 60°45'W). The extension of their distribution is approximately 500 km and 2000 km further south. The number of freshwater crab species in the alluvial valley of the Paraná River has increased by 30% with these new records.

Food chain length in a large floodplain river: planktonic or benthic reliance as a limiting factor

2017 ◽  
Vol 68 (7) ◽  
pp. 1336 ◽  
Author(s):  
M. Saigo ◽  
L. Ruffener ◽  
P Scarabotti ◽  
M. Marchese
Keyword(s):  
Chain Length ◽  
Food Chain ◽  
Trophic Position ◽  
Paraná River ◽  
The Body ◽  
Parana River ◽  
Ecosystem Size ◽  
Food Chain Length ◽  
Top Predators ◽  
Middle Paraná

Food chain length (FCL) is a key integrative variable describing ecosystem functioning. The aim of the present study was to test the hypothesis that the relative importance of planktonic and benthic energy pathways is a major factor affecting FCL in the Middle Paraná River. Samples were obtained from in eight waterbodies, measuring chlorophyll-a concentrations and the abundance of benthic invertebrates and the trophic position of top predators by stable isotope analysis. There was no evidence that resource availability, disturbances or ecosystem size limited FCL. Similarly, the body size and trophic position of predators were not correlated. However, the relative abundance of planktonic and benthic resources was correlated with FCL. In addition, stable isotopes analysis showed that the benthic reliance of top predators is correlated with their trophic position. The results of the present study indicate that because the major benthic primary consumer is a large fish (Prochilodus lineatus), the size structure of individual food chains is an important factor determining FCL. Whereas in floodplain rivers large detritivorous fishes are targets of commercial fishing, overfishing in the Middle Paraná River could be expected to increase FCL, the opposite effect to that seen in marine environments.

scholarly journals Local conditionsvsregional context: variation in composition of bird communities along the Middle Paraná River, an extensive river-floodplain system of South America

2016 ◽  
Vol 17 (1) ◽  
pp. 40-47 ◽  
Author(s):  
R. E. Lorenzón ◽  
A. H. Beltzer ◽  
P. M. Peltzer ◽  
A. L. Ronchi-Virgolini ◽  
M. Tittarelli ◽  
...  
Keyword(s):  
South America ◽  
Paraná River ◽  
Bird Communities ◽  
River Floodplain ◽  
Parana River ◽  
Middle Paraná
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