Eurasian jays do not copy the choices of conspecifics, but they do show evidence of stimulus enhancement [PDF]
, 2016 Corvids (birds in the crow family) are hypothesised to have a general cognitive tool-kit because they show a wide range of transferrable skills across social, physical and temporal tasks, despite differences in socioecology.
Clayton, NS +3 more
core +4 more sources
Chemodiversity of dissolved organic matter in the Amazon Basin [PDF]
, 2016 Regions in the Amazon Basin have been associated with specific biogeochemical processes, but a detailed chemical classification of the abundant and ubiquitous dissolved organic matter (DOM), beyond specific indicator compounds and bulk measurements, has ...
Bastos, Wanderley +8 more
core +1 more source
Zoo-sociocosmología qom: seres humanos, animales y sus relaciones en el Gran Chaco [PDF]
, 2014 En este trabajo analizamos la etnozoología de los indígenas qom (toba) del Gran Chaco argentino a los fines de iluminar ciertos aspectos del particular entramado de relaciones que los unen con la fauna. Partimos de considerar las continuidades anatómicas,
Medrano, María Celeste
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Neotropical IchthyologyThe feeding mechanisms of elasmobranchs and their functioning have been receiving growing scientific attention, although less emphasis has yet to be directed towards batoid species.
Akemi Shibuya, Jansen Zuanon, Sho Tanaka
doaj +1 more source
Liste commentée des poissons de l'Amazonie bolivienne [PDF]
, 1991 Après une brève présentation de l'Amazonie bolivienne, des milieux prospectés, de l'effort de pêche, des travaux anciens et récents, les auteurs founissent une liste commentée des poissons rencontrés.
Lauzanne, Laurent +2 more
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Diversification and convergence following the transition from saltwater to freshwater in stingrays. [PDF]
, 2023 One of the most fundamental questions in biology is why some groups of organisms are more diverse than others. Classic hypotheses for explaining differences in diversity consider distinctions in time, place, resources, and competitors as the staging ...
Magnuson, Autumn D
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Journal of Parasitology, 2003 Extensive new collections of specimens of Rhinebothroides spp. from a wide range of Neotropical freshwater potamotrygonid stingrays in numerous localities permitted critical evaluation of the validity of the 7 nominal species in the genus. Some qualitative characters previously used in the taxonomy of this group are highly variable within and among ...
Marques, Fernando P.L. +1 more
openaire +3 more sources
Lista de los peces de agua dulce de la Argentina. [PDF]
, 1987 Lista de peces de agua dulce restringida a la información básica: los autores de géneros y especies, la fecha de descripción, y las referencias bibliográficas a aquellos trabajos que fundamentan las modificaciones o agregados realizados.
López, Hugo Luis +2 more
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AMPLIAÇÃO DA DISTRIBUIÇÃO GEOGRÁFICA PARA Plesiotrygon nana CARVALHO E RAGNO, 2011 (ELASMOBRANCHII: POTAMOTRYGONIDAE) NO RIO TARAUACÁ, ALTO RIO JURUÁ, BRASIL [PDF]
, 2017 The recently described freshwater stingray Plesiotrygon nana Carvalho and Ragno 2011 was observed in the Rio Tarauacá, a tributary of Rio Juruá, in the Brazilian Amazon.
Duncan, Wallice Paxiuba +3 more
core +2 more sources
Preferência alimentar do Hypancistrus zebra e do Pterygoplichthys etentaculatus (Loricaridae). [PDF]
, 2014 O objetivo deste estudo foi avaliar a preferência alimentar do Hypancistrus. zebra e Pterygoplichthys. etentaculatus pela observação do comportamento na seleção de alimentos, promovendo informações para formulação de dietas mais adequadas a estas ...
CARNEIRO, P. C. F. +3 more
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