Results 61 to 70 of about 47,996 (245)

Effects of Glyphosate on the Planktonic Microbiota: An Experimental Approach

Environmental Toxicology, EarlyView.
ABSTRACT Glyphosate is one of the most widely used herbicides in the world, including in Brazil, and its dispersion through habitats and surface waters can impact entire aquatic ecosystems. However, experimental studies evaluating the effects of pesticides on whole planktonic communities, considering attributes such as richness, density and composition—
Melissa Progênio, Matheus Henrique Oliveira de Matos, Edilaine Corrêa Leite, Bianca Ramos de Meira, João Vitor Bredariol, José Eduardo Gonçalves, Pablo Augusto Poleto Antiqueira, Luiz Felipe Machado Velho   +7 more
wiley   +1 more source

Taxonomic revision of the Rineloricaria species (Siluriformes: Loricariidae) from the Paraguay River basin

Neotropical Ichthyology
Species of the genus Rineloricaria from the Paraguay River basin were revised, the following species and geographic distributional patterns were found: R. aurata, Paraguay River basin in Brazil and Paraguay, rio Guaporé in Brazil; R. cacerensis, Paraguay
Héctor S. Vera-Alcaraz, Carla S. Pavanelli, Cláudio H. Zawadzki   +2 more
doaj   +1 more source

Association between Ichthyocladius (Diptera: Chironomidae) and armored catfishes in the Guareí River basin, São Paulo State, Brazil

Anais da Academia Brasileira de Ciências, 2022
Ichthyocladius is a genus of chironomid (Diptera, Insecta) whose immature forms live attached to the bodies of some species of freshwater fishes. Here we investigate the association between Ichthyocladius spp. and armored catfish in streams of the Guareí
VALTER M. AZEVEDO-SANTOS, ERIKA M. SHIMABUKURO, FERNANDO M. PELICICE, RAOUL HENRY   +3 more
doaj   +1 more source

On traits matching and the modular organization of food web and occurrence networks

Journal of Animal Ecology, EarlyView.
What mechanisms shape ecological networks? In Paraná River piscivores, species traits and abundance scaling promote modular structures. Our findings reveal how communities self‐organize and highlight the conditions needed to sustain them. Abstract Modularity and nestedness have been observed recurrently across different ecological networks, including ...
Dalmiro Borzone Mas, Pablo A. Scarabotti, Pablo A. Vaschetto, Patricio Alvarenga, Martin Vazquez, Matías Arim   +5 more
wiley   +1 more source

[PROVISIONAL] Genetic evidence for a species complex within the piranha Serrasalmus maculatus (Characiformes, Serrasalmidae) from three Neotropical River basins based on mitochondrial DNA sequences

Genetics and Molecular Biology
Mitochondrial molecular markers (DNA sequences of D-loop, cytochrome b and cytochrome c oxidase I) were employed to characterize populations of the piranha Serrasalmus maculatus from Upper Paraná, Upper Paraguay and Tocantins River basins.
Thaís Souto Bignotto, Thiago Cintra Maniglia, Vivian Nunes Gomes, Isadora Janolio de Oliveira, Carlos Sérgio Agostinho, Sônia Maria Alves Pinto Prioli, Alberto José Prioli   +6 more
doaj   +1 more source

The impact of significant input of fine sediment on benthic fauna at tributary junctions: a case study of the Bermejo-Paraguay River confluence, Argentina [PDF]

, 2014
This study examines the morphological features, suspended sediment inputs and hydraulic conditions within a large river in association with ecological patterns before and after a tributary confluence.
Amsler, Mario L., Best, James L., Blettler, Martín C. M., Drago, Edmundo E., Eberle, Eliana, Espinola, Luis A., Ezcurra de Drago, Inés, Paira, Aldo, Parsons, Daniel R.   +8 more
core   +2 more sources

The birth of an earth being: ‘Rights of nature’ in Brazilian Amazonia and elsewhere Naissance d'un être de la terre : « droits de la nature » en Amazonie brésilienne et ailleurs

Journal of the Royal Anthropological Institute, EarlyView.
In June 2023, the Laje River, located in the traditional territory of the Wari’ Indigenous people in Rondônia, Brazil, was declared a legal entity, an earth being, with rights, following the co‐ordinated action of an indigenous councillor and non‐indigenous activists.
Aparecida Vilaça
wiley   +1 more source

Influence of urban area on the water quality of the Campo River basin, Paraná State, Brazil

Brazilian Journal of Biology
The Campo River basin is located on the third plateau of the Paraná State or trap plateau of Paraná, at the middle portion between the rivers Ivaí and Piquiri, southern Brazil, between the coordinates 23° 53 and 24° 10’ South Latitude and 52° 15’ and 52°
K. Q. Carvalho, S. B. Lima, F. H. Passig, L. K. Gusmão, D. C. Souza, C. Kreutz, A. D. Belini, E. J. Arantes   +7 more
doaj   +1 more source

‘Missing persons’: Ancient legacies of human–environment interaction in tropical natural properties inscribed under the 1972 World Heritage Convention

Archaeometry, EarlyView.
Abstract Cultural and natural values form the core of World Heritage designation. Properties displaying both values, however, comprise a fraction of inscriptions (currently c. 3%) to the World Heritage List. In 1992, when that fraction stood at c. 5%, adoption of the popular ‘cultural landscapes’ category of cultural heritage in 1992 was therefore ...
Ryan J. Rabett
wiley   +1 more source

Integrative taxonomy elucidates the species of Proloricaria (Siluriformes: Loricariidae) [PDF]

Neotropical Ichthyology
The genus Proloricaria is widely distributed throughout the upper Paraná River drainage. Its type-species, Loricaria prolixa, was described from specimens of the Tietê River basin, and the other species, P.
Vitor H. P. Pinheiro, Carolina B. Machado, Júlio C. Garavello, Pedro M. Galetti Jr., Alexandre K. de Oliveira   +4 more
doaj   +1 more source