Results 61 to 70 of about 106,620 (163)
Radiocarbon reservoir ages and hardwater effect for the northeastern coastal waters of Argentina. [PDF]
, 2008 Accelerator mass spectrometry (AMS) radiocarbon dates were obtained for 18 mollusk shells collected alive along the Buenos Aires province coast, Argentina, over the period AD 1914–1935.
Aguirre, Marina Laura +3 more
core +2 more sources
Non‐floral scent sources of orchid bees: Observations and significance
Biotropica, Volume 57, Issue 1, January 2025.We observed male euglossines collecting scent at 21 different non‐floral sources in Central and South America, strengthening the view that these sources play a central role in euglossine perfume biology. A Protium tree provided over 50% of the perfumes for Eufriesea corusca and was repeatedly revisited.
Jonas Henske +2 more
wiley +1 more source
Darwin's Geological Research in Argentina [PDF]
, 2009 On the occasion of the 200th. anniversary of Charles Darwin´s birth, the Asociación Geológica Argentina decided to prepare a special issue devoted to the geological research undertaken by Darwin in Argentina.
Aguirre-Urreta, Maria Beatriz +2 more
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Journal of Biogeography, Volume 51, Issue 11, Page 2198-2210, November 2024.Abstract Aim Dispersal and connectivity play important roles in shaping the population structure of giant kelp, Macrocystis pyrifera, across the western coast of South America. Its high potential dispersal capacity suggests the existence of metapopulations, where discrete habitat patches or groups of patches form subpopulations that interact at some ...
G. Thompson‐Saud +5 more
wiley +1 more source
Clave taxonómica de ninfas de Ephemeroptera (Insecta) del sudeste de Perú
Revista Peruana de Biología, 2019 Ephemeroptera es un orden de insectos cuyas etapas inmaduras cumplen un importante papel ecológico en los ecosistemas acuáticos. Sin embargo, el conocimiento de su diversidad en áreas tropicales aún es escaso. Específicamente, en el Perú se han reportado
Pablo Miñano +2 more
doaj +1 more source
Survey of El Nino 1957-58 in its relation to tropical pacific meteorology [PDF]
, 1966 ENGLISH: The survey aims at demonstrating the close relationship between anomalies of sea temperature observed along the tropical Pacific coast of the Americas and those observed in the oceanwide tropical belt. The survey also covers the variations, from
Bjerknes, Jacob
core
Review of European, Comparative &International Environmental Law, Volume 33, Issue 3, Page 633-646, November 2024.Abstract This article aims to contribute to aligning the legal regimes for energy transition minerals with sustainability and justice. The focus of the article is on effectively embedding the human right to a healthy environment into the design of these regimes.
Ana Elizabeth Bastida
wiley +1 more source
La distribución geográfica de las evidencias arqueológicas Guaraní
Revista de Indias, 2004 Este trabajo presenta la distribución geográfica de las evidencias arqueológicas de los Guaraníes en el Sur del Brasil, Paraguay, Argentina y Uruguay. El objetivo es elaborar un mapa de los territorios ocupados por dichos indígenas hasta el siglo 16 A.D.
Francisco Silva Noelli
doaj +1 more source
Application of trophic state indices in the dam of Salto Grande [PDF]
, 2013 Eutrophication is the process by which nutrients, mainly phosphorus, are contributed. Currently, this has increased due to human activity and population growth which has caused the deterioration of water quality and limited its potential uses.
Bordet, Hugo Facundo +1 more
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Occurrence and toxicity of Microcystis aeruginosa (Cyanobacteria) in the Paraná River, downstream of the Yacyretá dam (Argentina) [PDF]
, 2016 Cyanobacteria constitute the main toxin producers in inland water ecosystems and have extensive global distribution. The presence of hepatotoxins in aquatic environments is hazardous to human and animal health; even though the presence and identification
Andrinolo, Dario +3 more
core +3 more sources