Results 31 to 40 of about 702 (125)

Phylogeny of the Electric Rays of the Family Narcinidae (Gill, 1862): Systematic Review and Evidence of the Dispersal Routes to America

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 6, June 2026.
ABSTRACT The family Narcinidae has a cosmopolitan distribution; however, its systematic composition and phylogenetic position within Torpediniformes remain poorly understood. This study evaluates the evolutionary and biogeographic history of the family Narcinidae and investigates its distribution patterns using molecular systematics.
Luis Fernando da Silva Rodrigues‐Filho, Richard Klein Castro Silva, Eduardo Lopes de Lima, Raquel Sicca‐Ramirez, Getúlio Rincon, Jorge Luiz Silva Nunes, Iracilda Sampaio, João Braullio de Luna Sales   +7 more
wiley   +1 more source

Clarifying nomenclatural uncertainties in Jupunba (Caesalpinioideae, Leguminosae)

Nordic Journal of Botany, Volume 2026, Issue 5, May 2026.
Molecular phylogenetic studies have prompted substantial revisions in the systematics of the former genus Abarema, resulting in the reinstatement of the genera Punjuba and Jupunba, and a re‐circumscription of Abarema. Despite these advances, some taxa still require nomenclatural adjustments to reflect monophyletic lineages.
Ethiéne Guerra, Marcos Vinicius Batista Soares, Marli Pires Morim, João Ricardo Vieira Iganci   +3 more
wiley   +1 more source

Flux and Isotopic Composition of Sedimentary Carbon Subducting Along the World's Trenches

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Here we provide comprehensive estimates for the subducted sedimentary flux of inorganic and organic carbon and δ13C at 16 trench segments worldwide. Our calculations provide minimum (incoming sediment), maximum (trench fill) and best estimates (underthrust) of carbon fluxes.
Terry Plank, Alberto Malinverno
wiley   +1 more source

New records and distribution extensions of some bird species in the Colombian Andean-Orinoco, department of Meta [PDF]

Check List, 2016
Here we present new records for four bird species to the Andean foothills of the department of Meta in Colombia, and we confirm the occurrence and document range extensions for these in the basin of the Orinoco river.
Johanna Murillo-Pacheco, Wilian Bonilla-Rojas   +1 more
doaj   +3 more sources

Seasonal Patterns of the Caribbean Current and Its Influence on the Small Island of Curaçao

Journal of Geophysical Research: Oceans, Volume 131, Issue 5, May 2026.
Abstract Large‐scale ocean currents exhibit spatial and temporal variability that can influence local circulation patterns, particularly around small islands. Two distinct flow regimes were previously identified around the southern Caribbean island of Curaçao: (a) strong northwestward flow, and (b) cyclonic eddies or low‐energy conditions ...
Vesna Bertoncelj, Furu Mienis, Erik van Sebille   +2 more
wiley   +1 more source

Ichthyological collection of the Unillanos Natural History Museum (MHNU-I), Universidad de los Llanos, Villavicencio, Colombia

Biota Colombiana, 2022
The ichthyological collection of the Unillanos Natural History Museum (MHNU-I) is the first fish collection of the Colombian Orinoquia. The collection harbors 78 806 specimens in 3229 lots, collected between 2012 and 2019, representing 10 orders, 42 ...
Miguel Ángel Cortes Hernández, Elizabeth Aya Baquero, Juan Gabriel Albornoz Garzón, Hernando Ramírez Gil   +3 more
doaj   +1 more source

The Flooding Gradient Affects Seed Dispersal by Fruit‐Eating Fishes in Amazonian Whitewater Floodplain Forests

Biotropica, Volume 58, Issue 3, May 2026.
This research approaches the interaction between frugivorous fish and the flooded forests in the central Amazon. We evaluated the fruit consumption by fish and the seed dispersal potential along the flood gradient. We tested the hypothesis that the role of fish as seed dispersers varies between low várzea (LV) and high várzea (HV) forests.
Gilvan Costa, Sandra Bibiana Correa, Florian Wittmann, Jochen Schöngart, Maria Teresa Fernandez Piedade, Efrem Jorge Ferreira, Leonardo Maltchik   +6 more
wiley   +1 more source

Harttia merevari, a new species of catfish (Siluriformes: Loricariidae) from Venezuela

Neotropical Ichthyology
Harttia merevari, a new species of loricariid catfish, is described from eight specimens captured in the upper Caura River, Orinoco River basin, Venezuela.
Francisco Provenzano R., Antonio Machado-Allison, Barry Chernoff, Phil Willink, Paulo Petry   +4 more
doaj   +1 more source

South American Mesoscale Convective Systems: Present and Future Climates

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract This study investigates the mesoscale convective systems (MCSs) over South America in a future climate using two distinct modeling approaches: the Weather Research and Forecasting (WRF) regional model with dynamical downscaling and pseudoglobal warming, and the Nonhydrostatic Icosahedral Atmospheric Model (NICAM) global cloud‐resolving model ...
Amanda Rehbein, Tercio Ambrizzi, Andreas F. Prein   +2 more
wiley   +1 more source

Dispersal and delimitation: Phylogenomics of Connaraceae prompts revised generic delimitation in Cnestideae and reveals global biogeographic patterns

TAXON, Volume 75, Issue 2, April 2026.
Abstract The tempo and mode of assembly of the world's most diverse, tropical floras remain poorly known. Evolutionary relationships within pantropical plant clades such as Connaraceae (Oxalidales, ca. 220 species) offer an opportunity to address this issue.
Serafin J.R. Streiff, Jurriaan M. de Vos
wiley   +1 more source