Results 21 to 30 of about 477 (134)

Lejos de los campeones, cerca de los mediocres. La producción internacional compartida en América Central y del Sur

Revista de Economía y Estadística, 2011
En este trabajo se evalúa la participación relativa de Argentina, Brasil, Guatemala y Nicaragua en la producción segmentada. En base a estadísticas de comercio exterior (2000–2004), se analiza si el comercio de estas economías ha evolucionado dentro de ...
German Calfat, Danny Cassimon, Renato G. Flôres Jr., Ana Rivas   +3 more
doaj  

Species functional traits affect regional and local dominance across western Amazonian forests

Journal of Ecology, Volume 114, Issue 1, January 2026.
Dominant tree species in western Amazonian forests show distinct functional trait combinations linked to habitat type: conservative traits in stressful habitats and greater plant size in less stressful environments. Local dominants are defined by resource conservation strategies and widespread dominants are defined by resource acquisition strategies. A
Laura Matas‐Granados, Claire Fortunel, Luis Cayuela, Julia G. de Aledo, Celina Ben Saadi, Nathan J. B. Kraft, Christopher Baraloto, S. Joseph Wright, Jason Vleminckx, Nancy C. Garwood, Peter Hietz, Margaret R. Metz, Frederick C. Draper, Timothy R. Baker, Oliver L. Phillips, Eurídice N. Honorio Coronado, Kalle Ruokolainen, Roosevelt García‐Villacorta, Katherine H. Roucoux, Maximilien Guèze, Elvis Valderrama Sandoval, Paul V. A. Fine, Carlos A. Amasifuen Guerra, Ricardo Zarate Gomez, Pablo R. Stevenson, Abel Monteagudo‐Mendoza, Rodolfo Vasquez Martinez, John Terborgh, Mathias Disney, Roel Brienen, Percy Núñez Vargas, Jhon del Aguila Pasquel, Yadvinder Malhi, Jacob B. Socolar, Gerardo Flores Llampazo, Jim Vega Arenas, Darcy Galiano Cabrera, Javier Silva Espejo, Joey Talbot, Barbara Vinceti, José Reyna Huaymacari, Cecilia Ballón Falcón, Ted R. Feldpausch, Varun Swamy, Julio M. Grandez Rios, Manuel J. Macía   +45 more
wiley   +1 more source

Análisis bivariado de confiabilidad basado en cópulas

Revista Colombiana de Estadística, 2011
En la industria se requieren estudios de confiabilidad para asegurar el nivel de calidad de los productos que se fabrican. Algunas veces tales productos tienen varios modos de falla que deben considerarse en el análisis de confiabilidad. Este análisis se
ENRIQUE RAÚL VILLA-DIHARCE, PEDRO ENRIQUE MONJARDIN   +1 more
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Recovering European River Invertebrate Communities Homogenize or Differentiate Depending on Anthropogenic Stress

Global Change Biology, Volume 32, Issue 1, January 2026.
(a) European river invertebrate communities showed an average increase in local richness over time (1994–2023), indicating partial local recovery following the alleviation of anthropogenic stress (e.g., point‐source pollution). However, this local recovery was not accompanied by increases in β‐diversity, likely due to persistent, unaddressed stressors,
Daniela Cortés‐Guzmán, Diana E. Bowler, Marie Anne Eurie Forio, Peter Goethals, Ioannis Karaouzas, Ariane Moulinec, James S. Sinclair, Rudy Vannevel, Peter Haase, Ellen A. R. Welti   +9 more
wiley   +1 more source

Community‐level trait variation of epiphytic bryophytes supports trade‐off aligned with leaf‐economic spectrum in vertically stratified tropical montane cloud forest canopies

Functional Ecology, Volume 39, Issue 9, Page 2300-2313, September 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Tropical montane cloud forests are among the most biodiverse ecosystems on earth and are vulnerable to climate change due to reliance on atmospheric moisture. Epiphytic bryophytes (i.e.
Daniel B. L. Tucker, Sybil G. Gotsch, Damon Vaughan, S. Robbert Gradstein, Luisa Moreno, Nancy Shackelford, Brian M. Starzomski   +6 more
wiley   +1 more source

Large‐scale atmospheric variability entails differential modes of seasonal tree growth in the Mediterranean Basin

Journal of Ecology, Volume 113, Issue 9, Page 2652-2667, September 2025.
This work demonstrates the control of teleconnections on seasonal tree growth through local climate across the Mediterranean basin. Despite the constant link between the East Atlantic Pattern and temperature, synergies among teleconnections point to an east–west dipole in tree seasonal growth, driven by precipitation variability.
Héctor Hernández‐Alonso, José Miguel Olano, Hermine Houdas, Gianluca Piovesan, Arben Q. Alla, Dario Domingo, Miguel García‐Hidalgo, Dinka Matošević, Ivan Balenović, María E. Coca‐García, Gabriel Sangüesa‐Barreda   +10 more
wiley   +1 more source

MODELADO DE LA OSIFICACIÓN DE LAS EPÍFISIS DE HUESOS LARGOS

Dyna, 2009
Se presenta en este documento un modelo matemático de hipertrofia de condrocitos, regulado por factores moleculares capaces de predecir la aparición y localización de los centros secundarios de osificación durante el desarrollo de los huesos largos.
D. A. GARZÓN - ALVARADO
doaj  

Potential for synergistic conservation through area‐based strategies

Conservation Biology, Volume 39, Issue 4, August 2025.
Abstract The ongoing biodiversity crisis has raised concerns about the effectiveness of area‐based conservation (ABC) strategies for achieving positive biodiversity outcomes. In riverine ecosystems, the linear habitat structure of fishes introduces uncertainty into the synergistic conservation potential of ABC.
Li Zhang, Yanwen Fu, Jiaxin Li, Lingyan Yan, Xiaojun Kou, Zhiyun Ouyang   +5 more
wiley   +1 more source

Ansiedad, depresión, afecto negativo y positivo asociados con el consumo de tabaco en universitarias

Revista Internacional de Investigación en Adicciones, 2018
Introduction: In recent years the prevalence of tobacco consumption in women has increased significantly, which results in high costs at economic, family and health.
Jennifer Lira-Mandujano, Erendira Valdez-Piña, Mariana Núñez-Lauriano, Daniel Pech-Puebla, Silvia Morales-Chainé, Sara E. Cruz Morales   +5 more
doaj   +1 more source

Pyraloid Moth Assemblages Exhibit Complex Morphological Patterns Across an Ecuadorian Mountainous Forest

Biotropica, Volume 57, Issue 3, May 2025.
In this study, we examined how morphological traits and species diversity of Pyraloidea moths vary with temperature and vegetation cover along an Andean rainforest gradient in Ecuador. Using 4161 individuals (212 species) and cross‐validating with a larger dataset of 10,337 individuals (749 morpho‐species), we found a near‐linear decrease in diversity ...
Victor Sebastian Scharnhorst, Konrad Fiedler   +1 more
wiley   +1 more source