Results 31 to 40 of about 2,369 (175)

The influence of rivers on seabird foraging ecology

open access: yesBiological Reviews, Volume 101, Issue 4, Page 1704-1734, August 2026.
ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais   +2 more
wiley   +1 more source

High levels of Mercury and Lead detected by hair analysis in two Venezuelan environments Altos níveis de Mercúrio e Chumbo detectados pela análise de cabelo em dois ambientes venezuelanos

open access: yesActa Amazonica, 2009
Mercury and Lead concentrations obtained by ICP-OAS analysis of human hair from riverside communities along the Orinoco river in the Amazon state (Venezuela) were compared with those from Caracas, Venezuela.
Eunice Marcano   +4 more
doaj   +1 more source

Orinoco and Amazon

open access: yesEos, Transactions American Geophysical Union, 1984
Although much of the research being done on these rivers is still in its early stages, the misprint in the 1983 AGU Fall Meeting abstracts issue of Eos (November 8, 1983, p. 697) appears to be correct: These rivers are topical as well as tropical. The series of papers by Meade, Nordin, Dunne, and Mertes provided some interesting observations (for ...
openaire   +1 more source

Fine‐Tuning a Weather Foundation Model With Lightweight Decoders for Unseen Physical Processes

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 4, August 2026.
Abstract Recent advances in AI weather forecasting have led to the emergence of so‐called “foundation models”, typically defined by expensive pretraining and minimal fine‐tuning for downstream tasks. However, in the natural sciences, a desirable foundation model should also encode meaningful statistical relationships between the underlying physical ...
Fanny Lehmann   +5 more
wiley   +1 more source

Why Are Most Fish Populations Genetically Homogeneous Along the Southwestern Atlantic Coast? The Role of Life History Traits in Shaping Genetic Patterns

open access: yesJournal of Biogeography, Volume 53, Issue 8, August 2026.
ABSTRACT Aim Investigate patterns of population genetic structure in Southwestern Atlantic marine fishes and evaluate how geographic range, habitat diversity, and evolutionary history shape population connectivity. Location Southwestern Atlantic, including the Caribbean, Brazilian coast, and Patagonian region, between 0°59′ N and 40°16′ S.
Glaciane Conceição Marques   +4 more
wiley   +1 more source

Lithoxancistrus orinoco

open access: yes, 2006
Published as part of Francisco Provenzano & Nadia Milani, 2006, Cordylancistrus nephelion (Siluriformes, Loricariidae), a new and endangered species of suckermouth armored catfish from the Tuy River, north-central Venezuela., pp.
Francisco Provenzano, Nadia Milani
openaire   +2 more sources

Clarifying the Labrisomus Conundrum: Deep Divergence, Cryptic Lineages, and a Genetic Melting Pot in the Atlantic Ocean (Teleostei, Labrisomidae)

open access: yesJournal of Biogeography, Volume 53, Issue 8, August 2026.
ABSTRACT Aim We evaluate the phylogenetic relationships and taxonomic validity of Atlantic species of Labrisomus, identifying the lineages currently assigned to L. nuchipinnis, and assessing the role of biogeographic barriers in shaping the evolutionary history and geographic distribution of the genus. Location Atlantic Ocean.
Gabriel Soares Araujo   +8 more
wiley   +1 more source

Estratigrafia e geocronologia do greenstone belt de Guarinos, Goiás

open access: yesGeologia USP. Série Científica, 2012
O greenstone belt de Guarinos é uma das três faixas de rochas supracrustais de baixo grau metamórfico marginadas por ortognaisses do extremo norte do Bloco Arqueano de Goiás.
Hardy Jost   +4 more
doaj   +1 more source

Holistic analysis of shoreline change and mudbank dynamics across the Guiana coastline

open access: yesEarth Surface Processes and Landforms, Volume 51, Issue 7, July 2026.
Annual analysis of shoreline change across the entire Guiana coastline, northern South America, including quantification of the rate and nature of alongshore mudbank migration and cross‐shore mangrove establishment and loss was conducted. Identification of other key coastal landforms contributing to exceptional rates of shoreline change across the ...
Martin S. J. Rogers, Tom Spencer
wiley   +1 more source

¿Un El Dorado Republicano? Los recursos ganaderos de El Orinoco al servicio de las independencias venezolana y colombiana

open access: yesHistoria Agraria de América Latina
Este artículo muestra como los recursos animales del Orinoco jugaron un papel decisivo en el éxito militar de los Independentistas de Venezuela y Colombia entre 1818 y 1821.
Frédéric Spillemaeker
doaj   +1 more source

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