Results 11 to 20 of about 1,507 (201)

Ecological Factors and Diversification among Neotropical Characiforms [PDF]

International Journal of Ecology, Volume 2012, Issue 1, 2012., 2012
Morphological and DNA sequence data has been used to propose hypotheses of relationships within the Characiformes with minimal comparative discussion of causes underpinning the major intraordinal diversification patterns.
Duque Escobar, Santiago Roberto, Granado Lorencio, Carlos Antonio, Guisande González, Cástor, Pelayo Villamil, Patricia, Prieto Piraquive, Edgar Francisco, Vera Rodríguez, Manuel   +5 more
core   +2 more sources

Application of a deep learning image classifier for identification of Amazonian fishes. [PDF]

Ecol Evol, 2023
To address the growing prevalence of large ecological datasets combined with a need for rapid species identification tools, we describe a novel application of a computer vision model, which is built to rapidly identify Amazonian fishes from captured image data.
Robillard AJ, Trizna MG, Ruiz-Tafur M, Dávila Panduro EL, de Santana CD, White AE, Dikow RB, Deichmann JL.   +7 more
europepmc   +2 more sources

Hydrological Connectivity Enhances Fish Biodiversity in Amazonian Mining Ponds: Insights From eDNA and Traditional Sampling. [PDF]

Mol Ecol
ABSTRACT Artisanal and small‐scale gold mining (ASGM) expansion in the Madre de Dios region of the Peruvian Amazon has transformed primary forests into a novel wetland complex of thousands of abandoned mining ponds. Despite their ecological relevance, post‐mining recovery of these systems remains understudied, particularly regarding fish biodiversity ...
Timana-Mendoza C, Reyes-Calderón A, Venail P, Britzke R, Santa-Maria MC, Araújo-Flores JM, Silman M, Fernandez LE.   +7 more
europepmc   +2 more sources

Threshold responses of floating meadow fish communities to floodplain forest cover in the lower Amazon River. [PDF]

Conserv Biol
Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Grinstead S, Arantes CC, Winemiller KO, Kelso-Winemiller LC, de Oliveira JA, Petrere M, Freitas CEC.   +6 more
europepmc   +2 more sources

Early Biogeography of Otophysi Points to the Neotropics as the Cradle of Characiphysan Fishes. [PDF]

Ecol Evol
Otophysan fishes represent 70% of living freshwater fishes with 12,000 species. Relationships among their four orders were explored through a dense taxonomic sampling including 529 complete mitochondrial genomes and 4 nuclear genes for 324 species.
Lenglin A, Hidalgo M, Miranda G, De la Sota A, Caminade P, Belkhir K, Otero O, Antoine PO, Garcia-Davila C, Hubert N.   +9 more
europepmc   +2 more sources

Establishing new grid-size-dependent attributes to rank areas of endemism for conservation priorities. [PDF]

Cladistics
Abstract Delineating Areas of Endemism (AEs) is crucial for identifying priority areas for biodiversity conservation in a spatial planning framework. Endemicity Analysis in the NDM/VNDM software is one of the primary methodologies for its delineation.
Frota A, da Graça WJ.
europepmc   +2 more sources

Skeletal ontogeny of the Plainfin Midshipman, Porichthys notatus (Percomorphacea: Batrachoidiformes). [PDF]

J Anat, 2023
Description of skeletal ontogeny during early life history of Porichthys notatus. Establishment that the previously described as dorsalmost pectoral radial is homologous to the propterygium. Unique developmental pathway of the posterior basibranchial cartilage, first appearing as paired elements which fuse in later stages.
Vaz DFB, Hilton EJ.
europepmc   +2 more sources

The Impact Mechanism of Inter-Basin Water Transfer on Fish Assemblages Was Revealed Using a Model of Terminal Reservoirs. [PDF]

Ecol Evol
Using three terminal reservoirs of an inter‐basin water transfer project (IBWT) as a model system, our study revealed an impact mechanism of IBWTs on fish assemblages. Our study found an underestimated effect of IBWTs on fish assemblages through diverted fish accompanying periodic water transfer, and the distance of water transfer, reservoir operation ...
Cheng Z, Wang A, Cui Y, Gao L, Cheng F, Shu F, Xie S.   +6 more
europepmc   +2 more sources

Social predation in electric eels. [PDF]

Ecol Evol, 2021
We report the unexpected social predation by electric eels, an otherwise solitary predator in the Amazon rainforest. Illustration was produced by Animate Your Science. Abstract Social predation—when groups of predators coordinate actions to find and capture prey—is a common tactic among mammals but comparatively rare in fishes. We report the unexpected
Bastos DA, Zuanon J, Rapp Py-Daniel L, de Santana CD.   +3 more
europepmc   +2 more sources

DNA metabarcoding of mock communities highlights potential biases when assessing Neotropical fish diversity

Environmental DNA, Volume 5, Issue 6, Page 1351-1361, November 2023., 2023
The performance of a taxonomy‐free approach using ASV/MOTUs was not as precise as assigning DNA reads to species using a curated 12S library that includes approximately 100 fish species since more than one ASV/MOTU was observed for the same specimen.
Heron Oliveira Hilário, Izabela Santos Mendes, Naiara Guimarães Sales, Daniel Cardoso Carvalho   +3 more
wiley   +1 more source