Results 81 to 90 of about 15,052 (221)

Hyperdominant Trees Reveal Savanna Vulnerability Under Climate Change

Global Change Biology, Volume 32, Issue 4, April 2026.
The Brazilian Cerrado's forest structure relies disproportionately on just 30 hyperdominant tree species, which represent 50% of all individuals despite accounting for only 2% of species richness. This study evaluates their vulnerability under climate change scenarios for 2100.
Facundo Alvarez, Ben Hur Marimon‐Junior, Beatriz Schwantes Marimon, Wesley Jonatar Alves da Cruz, Norberto Gomes Ribeiro Júnior, Raiane Gonçalves Béu, Polyanna da Conceição Bispo, Aldair de Souza Medeiros, Glécio Machado Siqueira, Marcelo Leandro Bueno, Fabiana de Gois Aquino, Frederico Augusto Guimarães Guilherme, José Roberto Rodrigues Pinto, Henrique Augusto Mews, Bruno Machado Teles Walter, Sabrina do Couto de Miranda, Ricardo Flores Haidar, Eddie Lenza de Oliveira, Renata Dias Françoso Brandão, Eraldo Aparecido Trondoli Matricardi, Cássia Beatriz Rodrigues Munhoz, Edson de Souza Lima, Maria Antônia Carniello, Mercedes Maria da Cunha Bustamante, Paulo Sérgio Morandi, Edmar Almeida de Oliveira, Zenésio Finger, Eder Carvalho das Neves, Fernando Elias, Immaculada Oliveras Menor, Simone Matias de Almeida Reis, Oliver Phillips, Ted R. Feldpausch   +32 more
wiley   +1 more source

Revealing the spatial pattern of subsurface soil salinity over the Argentinean Dry Chaco

, 2021
<p>The South-American Dry Chaco is a unique ecoregion as it is one of the largest sedimentary plains in the world hosting the planet’s largest dry forest. The 787.000 km² region covers parts of Argentina, Paraguay, and Bolivia and is characterized by a negative climatic water balance as a consequence of limited ...
Michiel Maertens, Veerle Vanacker, Gabriëlle De Lannoy, Frederike Vincent, Raul Giménez, Ignacio Gasparri   +5 more
openaire   +3 more sources

Assembling the Neotropical Tree Flora: Andean Uplift and the Historical Biogeography of the Brazil Nut Family (Lecythidaceae)

Journal of Biogeography, Volume 53, Issue 4, April 2026.
ABSTRACT Aim The assembly of tropical tree floras is complex, involving many lineage‐specific histories; however, focusing on the biogeographic history of diverse clades can reveal general patterns. We investigated the historical biogeography of the ecologically important Brazil nut clade (Lecythidoideae) to: (1) expand prior phylogenies with greater ...
Diana Medellín‐Zabala, Joseph L. M. Charboneau, Oscar M. Vargas, Stephen A. Smith, Deise J. P. Gonçalves, Andre S. Chanderbali, Douglas E. Soltis, Pamela S. Soltis, Christopher W. Dick   +8 more
wiley   +1 more source

Land tenure and biological communities in dry Chaco forests of northern Argentina

Journal of Arid Environments, 2015
Abstract Environmental factors and land use control habitat quality and resources availability, thus regulating species distribution. Land tenure in general, and particularly traditional indigenous properties, strongly influence land use in forest ecosystems, but their association with biodiversity is poorly explored.
Marinaro Fuentes, María Sofía, Grau, Hector Ricardo, Macchi, Leandro, Zelaya, Patricia Viviana   +3 more
openaire   +2 more sources

First confirmed record of Catharus ustulatus (Nuttall, 1840), Swainson’s Thrush (Passeriformes, Turdidae), in Paraguay [PDF]

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Catharus ustulatus (Nuttall, 1840) (Swainson’s Thrush), a long-distance migratory songbird, spends its nonbreeding period primarily in northwestern South America and has been listed hypothetically in Paraguay.
Pablo M. Avidad, Rubén Meza, Doris Dávalos, Hugo del Castillo, Robert Clay   +4 more
doaj   +3 more sources

Impact of migration on the occurrence of new cases of Chagas disease in Buenos Aires city, Argentina [PDF]

, 2013
Chagas disease, also known as American Trypanosomiasis, is endemic in the Americas, especially Central and South America. Chagas disease is a zoonotic disease caused by the parasite Trypanosoma cruzi.
Altcheh, Jaime Marcelo, Ballering, Griselda, Berenstein, Ada, Biancardi, Miguel Angel, Espejo Cozzi, Andres, Freillij, Hector, Garcia Bournissen, Facundo, Hernandez, Susana, Moroni, Samanta, Moscatelli, Guillermo, Schwarcz, Marta, Siniawski, Susana, Tarlovsky, Ana   +12 more
core   +2 more sources

Biogeographic History and Morphological Trait Influence in the Diversification of the Subtribe Calothecinae (Poaceae)

Journal of Biogeography, Volume 53, Issue 4, April 2026.
ABSTRACT Aim The biodiversity of the Neotropics has been shaped by complex interactions over time with several major geological and climatic events linked to the diversification of lineages. The subtribe Calothecinae (Poaceae) comprises 28 species adapted to open environments, ranging from lowlands to high‐altitude grasslands in America.
Taciane Schröder, Leonardo Nogueira da Silva, Verônica Aydos Thode, Jeffery M. Saarela, Tatiana Teixeira de Souza‐Chies   +4 more
wiley   +1 more source

EVOLUCIÓN DE BOSQUES ESTACIONALES SECOS NEOTROPICALES, CHACO Y CERRADO EN EL NEÓGENO DEL CENTRO-NORTE DE ARGENTINA

Publicación Electrónica de la Asociación Paleontológica Argentina, 2019
Resumen. El objetivo de esta contribución es la de analizar la flora leñosa fósil (arbórea y arbustiva) neógena del centro-norte de Argentina y relacionarla con la flora de los actuales Bosques Estacionales Secos Neotropicales (BSEN), del Chaco y del ...
Luisa Anzótegui, Silvina Garalla, Lilia Mautino, Darien Prado   +3 more
doaj  

First record of Poospiza ornata (Landbeck, 1865) (Passeriformes, Thraupidae) from Paraguay [PDF]

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Poospiza ornata (Landbeck, 1865) is a Neotropical passerine bird distributed in xerophytic areas of Argentina. It shows migratory or nomadic behavior in winter and occasionally reaches Uruguay. Here we report the presence of P.
Rubén Meza, Doris Dávalos, Lorena Sforza, Pier Cacciali, Hugo del Castillo   +4 more
doaj   +3 more sources

Environmental and climatic proxies for the Cañadón Asfalto and Neuquén basins (Patagonia, Argentina): review of middle to upper jurassic continental and near coastal sequences [PDF]

, 2015
In this review, we include several proxies (sedimentology, palynology, invertebrates) from the Cañadón Asfalto and Neuquén basins, to infer the environments and regional climatic context during the Middle to Late Jurassic of Patagonia.
Cabaleri, Nora Graciela, Melendi, Daniel Luis, Narvaez, Paula Liliana, Quattrocchio, Mirta Elena, Rosenfeld, U., Scafati, Laura Haydee, Volkheimer, Wolfang   +6 more
core   +1 more source