Results 31 to 40 of about 19,338 (219)

Phylogenomic analyses reveals gene flow between populations of the freshwater shrimp Potimirim brasiliana (Caridea, Atyidae) along its wide distribution [PDF]

open access: yesAnais da Academia Brasileira de Ciências
Potimirim is one of the 40 genera of Atyidae restricted to America, which occurs in coastal freshwater habitats and questions about population status and variability have been emerging.
FERNANDO L. MANTELATTO   +3 more
doaj   +2 more sources

Trophic Niche Overlap Between the Invasive Crab Rhithropanopeus harrisii (Gould, 1841) and Native Crab Species in the Southwest Atlantic Coast

open access: yesMarine Ecology, Volume 47, Issue 3, May/June 2026.
ABSTRACT The introduction of exotic species is one of the main drivers of biodiversity loss in aquatic ecosystems. The Harris mud crab Rhithropanopeus harrisii, native to the Atlantic coast of North America, was recorded in the Patos Lagoon estuary (southern Brazil) in the 1980s, likely introduced via ballast water. However, the effects of this invader
Renan C. Machado   +2 more
wiley   +1 more source

Inside-out flowers of Lacandonia brasiliana (Triuridaceae) provide new insights into fundamental aspects of floral patterning [PDF]

open access: yesPeerJ, 2016
Background and Aims. A recently described Brazilian species, Lacandonia brasiliana, shares with its longer established putative sister species from Mexico, L.
Paula J. Rudall   +2 more
doaj   +2 more sources

Exploring the Gravimetric and Geochronological Links in Ancient Terranes of the São Francisco Craton and Borborema Province, NE‐Brazil

open access: yesTerra Nova, Volume 38, Issue 2, Page 77-86, April 2026.
ABSTRACT Deep crustal fragments and structural lineaments identified through satellite gravity data provide evidence for the extension of the reworked ancient basement of the Central African Block into the northern São Francisco Craton and southern Borborema Province.
Douglas Teixeira Martins   +3 more
wiley   +1 more source

Brasiliana

open access: yesAfro-Ásia
O grupo Brasiliana estreou em janeiro de 1950, no Rio de Janeiro, e teve um papel fundamental, mas pouco reconhecido, na transposição da música e do balé negros, ou afro-brasileiros, para o palco e no desenvolvimento do “balé brasileiro” e do “espetáculo folclórico”.
Matthias Röhrig Assunção   +1 more
openaire   +1 more source

Swimming Behavior of the Nudibranch Melibe leonina [PDF]

open access: yes, 2002
Swimming in the nudibranch Melibe leonina consists of five types of movements that occur in the following sequence: (1) withdrawal, (2) lateral flattening, (3) a series of lateral flexions, (4) unrolling and swinging, and (5) termination.
Lawrence, Kaddee A.   +1 more
core   +1 more source

Tributo a Manoel da Gama Lobo (1835-1883), pioneiro na epidemiologia da deficiência de vitamina A no Brasil A tribute to Manoel da Gama Lobo (1835-1883), pioneer in the epidemiology of vitamin A deficiency in Brazil

open access: yesHistória, Ciências, Saúde: Manguinhos, 2007
Analisa a contribuição do médico paraense Manoel da Gama Lobo à história da epidemiologia da deficiência de vitamina A no Brasil. Tem como foco central de investigação a obra "Da oftalmia brasiliana", publicada originalmente em 1865.
Francisco de Assis Guedes de Vasconcelos   +1 more
doaj   +1 more source

A Deep Metagenomic Snapshot as a Proof‐of‐Concept for Resource Generation: Simultaneous Assembly of Host, Food, and Microbiome Genomes From Stingless Bee Larval Food

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
This study serves as a proof‐of‐concept, demonstrating that deep shotgun sequencing of a single complex sample—stingless bee larval food—can simultaneously generate multiple genomic resources. From this dataset, we assembled three genomes (a near‐complete bacterium, a draft host mitochondrion, and a fragmented plant chloroplast) with varying ...
Carlos Ueira‐Vieira   +6 more
wiley   +1 more source

Blood indices of sheep fed with ensiled signal grass (Brachiaria decumbens)

open access: yesNew Zealand Journal of Agricultural Research, Volume 68, Issue 7, Page 1985-2002, December 2025.
ABSTRACT The Brachiaria species, particularly B. decumbens, is a key ruminant feed in the tropics but contains steroidal saponins that may cause toxicity, raising concerns for small ruminant farmers. Eighteen 6‐month‐old sheep were randomly assigned to three treatments over a 90‐day feeding trial: Negative control (fresh P.
Nurul Aishah Ahmad Fauzi   +6 more
wiley   +1 more source

Registros recientes delgasterópodo exótico Rapana venosa (Valenciennes, 1846) a lo largode la línea costera Argentina: ¿Está progresandolainvasiónhaciaelsur? [PDF]

open access: yes, 2014
Se presentan los registros más recientes de R. venosa a lo largo de la línea costera de Argentina (2010-2013), incluyendo el hallazgo de un individuo en la albufera Mar Chiquita (200 km al sur del Río de la Plata).
Bruno, Luis Ignacio   +1 more
core  

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