Veronica Slobodian

Fragmentation by Dams and Habitat Quality Affect Body Condition of a Small Characid in a Neotropical System

Ana Carolina Daldegan, Yan F. F. Soares, Paulo Vitor Santos Rabelo, Vinícius de Andrade Urbano et autres

ABSTRACT The structure of stream networks naturally fragments freshwater habitats, but this complexity is increasingly intensified by dams and reservoirs. How anthropogenic fragmentation interacts with natural isolation gradients to affect fish populations remains poorly understood. Here, we tested how natural (position within …

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Supplementary material of "Allometric patterns in Potamotrygon motoro (Chondrichthyes: Myliobatiformes: Potamotrygonidae): insights into sexual and ontogenetic variation"

Veronica Slobodian, Julia Papalardo Azevedo, Thiago Silva Loboda

Supplementary material for the aforementioned manuscript. Three datasets are presented. SI1 has Morphological data of Potamotrygon motoro specimens analyzed. SI2 presents Minimum, maximum, and standard deviation (std) of each morphometric measurement in the sampled specimens. SI3 is the Summary of the statistics …

Supplementary material of "Allometric patterns in Potamotrygon motoro (Chondrichthyes: Myliobatiformes: Potamotrygonidae): insights into sexual and ontogenetic variation"

Veronica Slobodian, Julia Papalardo Azevedo, Thiago Silva Loboda

Supplementary material for the aforementioned manuscript. Three datasets are presented. SI1 has Morphological data of Potamotrygon motoro specimens analyzed. SI2 presents Minimum, maximum, and standard deviation (std) of each morphometric measurement in the sampled specimens. SI3 is the Summary of the statistics …

Natural history collections as a research field: a conceptual review of its consolidation in the information age (2000–2025)

Gabriela Hirata, Paula Araújo, Julia Klaczko, Veronica Slobodian et autres

Abstract Over the last 25 years, natural history collections (NHCs) have undergone a profound transformation that extends well beyond technological modernization or improved data accessibility. Here, we examine whether and how recent conceptual frameworks and institutional developments support the interpretation of NHCs …

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Do conspicuous tails and dietary shifts indicate luring behavior in vipers (Serpentes Viperidae)?

Aída P. Giozza, Veronica Slobodian, Luisa M. Diele-Viegas, Ricardo S. Magalhães et autres

Aggressive mimicry is an ambush strategy observed in various animal taxa, including snakes, which use caudal luring (CL) to attract prey. CL involves cryptically colored snakes waving a conspicuous tail tip (CTT) to mimic worm-like invertebrates, luring prey that feeds on such …

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A new species of Pimelodella (Siluriformes: Heptapteridae) from the Paraguai basin, Brazil, with a discussion regarding its distribution

Veida Pierre, Veronica Slobodian

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Redescription of ‘ Chasmocranus’ brachynema (Heptapteridae: Heptapterini)

GABRIEL DE CARVALHO DEPRÁ, Veronica Slobodian

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Allometric patterns in Potamotrygon motoro (Myliobatiformes: Potamotrygonidae): insights into sexual and ontogenetic variation

Julia Papalardo Azevedo, Thiago Silva Loboda, Veronica Slobodian

Abstract Potamotrygon is the most species-rich genus of Neotropical freshwater stingrays in the Potamotrygoninae, currently comprising 31 species primarily diagnosed by coloration patterns, dermal denticles, and body measurements. Although morphometric characters are fundamental for species descriptions, their growth patterns can vary throughout …

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A common but poorly described species of the genus Pimelodella (Siluriformes: Heptapteridae) from southeastern South America

Miguel Ángel Cortés‐Hernández, Veronica Slobodian, Edna J. Márquez, Gastón Aguilera et autres

Abstract We redescribe Pimelodella straminea, a species widely distributed in endorheic (Salí-Dulce, Primero, and Quinto rivers), and exorheic (Paraná-La Plata and Uruguay rivers) basins of Argentina and Brazil. We analyzed the populations of P. straminea using an iterative taxonomy analysis, which combines …

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Phylogeny and Classification of Heptapteridae (Pimelodoidea)

Veronica Slobodian, Flávio A. Bockmann

Heptapteridae is a family of three-barbeled catfish with 237 valid species, currently classified into 23 genera and distributed in the Neotropical region. They range from southern Mexico to the Pampas of Argentina, encompassing cis- and Trans-Andean drainages. Despite being identified as monophyletic …

The CARDUME initiative: integrating Brazil’s scientific fish collections to promote research and biodiversity conservation

José Luís Olivan Birindelli, Francisco de Paula Severo da Costa Neto, Cristiano R. Moreira, Lucas Colares et autres

Abstract Brazil hosts the highest fish diversity globally, underscoring the critical role of Brazilian Scientific Fish Collections (BSFCs) in biodiversity research and conservation. Despite their importance, BSFCs face persistent challenges. This study introduces the CARDUME network, the first nationwide initiative to assess …

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Correction: An ecological trait matrix of Neotropical freshwater fishes

James S. Albert, Vitor Pimenta Abrahão, Daniel R. Akin, Marcelo Ândrade et autres

In this article the author’s name Marcelo Ândrade was incorrectly written as Marcelo Andrade. Second, the affiliation details for Marcelo Ândrade were incorrectly given as ‘Universidade do Estado do Amapá, Macapá, Brazil’ but should have been ‘Universidade Federal do Pará, Belém, Brazil’. …

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