Results 41 to 50 of about 340 (251)
Eye Darkening Under Dehydration Stress in the Neotropical Frog Boana punctata (Schneider, 1799)
Journal of Experimental Zoology Part A: Ecological and Integrative Physiology, EarlyView.Dehydration induces a strong and partially reversible increase in iris pigmentation in the Neotropical frog Boana punctata. The tight relationship between iris darkening and hydration state identifies ocular pigmentation as a simple, non‐invasive physiological biomarker with broad potential for assessing hydric stress in amphibian populations ...
Ricardo Reques +5 more
wiley +1 more source
International Journal of Climatology, EarlyView.ERA5 near‐surface temperature over South America exhibits systematic cold biases in daily maximum temperature and warm biases in daily minimum temperature. To address the continent's strong climatic and topographic heterogeneity, South America was partitioned into five topoclimatic clusters, and four bias‐correction approaches were evaluated. The Multi‐
José Roberto Rozante, Gabriela Rozante
wiley +1 more source
Nordic Journal of Botany, EarlyView.Portulaca (Portulacaceae) is a cosmopolitan genus with centers of diversity in Africa and South America. In Brazil, 22 species are recognized, most occurring in xerophytic environments of the Cerrado, particularly in Campos Rupestres. These rocky montane habitats, especially in northern Minas Gerais state, remain undercollected despite their high ...
Danilo Alvarenga Zavatin +7 more
wiley +1 more source
Revista Investigaciones y Estudios de la UNAThis research analyzes the incursion of Krausist-Positivist liberal discourse into the historical, political, and social context of Paraguayan novecentismo and its repercussions on the formation of the State at the beginning of the 20th century.
Andino Rojas, Cristian David
doaj +1 more source
Nordic Journal of Botany, EarlyView.Sinningia pampeana is a new rupicolous species from the rocky outcrops of the Pampa biome in southern Brazil and Uruguay. Morphological analyses based on herbarium material, field observations, and detailed illustrations support its recognition as a distinct species from Sinningia sellovii.
Gabriel Emiliano Ferreira +4 more
wiley +1 more source
The Origins of the Paraguayan War [PDF]
Hispanic American Historical Review, 1930 Mary Wilhelmine Williams +1 more
openaire +2 more sources
Two new species of Calea ser. Multiplinerviae (Asteraceae: Neurolaeneae) from Brazil
Nordic Journal of Botany, EarlyView.Detailed studies of specimens from Rondônia and Mato Grosso do Sul showed that two new species have been misidentified: Calea micropappa resembles Calea pilosa, but differs by leaf apex obtuse to acuminate (versus acute), paleae present (versus paleae absent), disc corolla lobes 1.2–1.3 mm long (versus 0.7–0.8 mm), and pappus scales 0.1–0.25 mm long ...
Vinícius Resende Bueno +2 more
wiley +1 more source
Os quadros históricos da Guerra do Paraguay: projeto editorial e imagens [PDF]
Navigator, 2019 The collection of lithographs and texts entitled Historical Pictures of the Paraguayan War was produced in the 1870s. The collection, initially sold in fascicles, later became an album, undergoing some occasional modifications.
Álvaro Saluan da Cunha
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Two new endemic species of Portulaca (Portulacaceae) from the Brazilian Pampa grasslands
Nordic Journal of Botany, EarlyView.Portulaca L. is a monophyletic, cosmopolitan genus of succulent plants comprising ca 153 species, with particularly high diversity in xerophytic ecosystems in tropical and subtropical regions. Based on morphological evidence, we describe and illustrate two new species from the Brazilian Pampa, Portulaca guaritensis and Portulaca guenoa.
José Roberto Ferraz +3 more
wiley +1 more source
REGENERACIÓN1 DE LA SOCIEDAD PARAGUAYA: APORTE DE LOS INMIGRANTES (1870-1904)
Diálogos, 2018 Resumo. Luego de la guerra contra la Triple Alianza, el Paraguay diezmado, necesitaba recuperar su sociedad, tanto desde el punto de vista demográfico como social, cultural, económico y político.
Raquel Zalazar
doaj