Results 51 to 60 of about 4,249 (176)

Enfoques conceptuales y propuestas metodológicas para el estudio de las interacciones entre el medio ambiente y la salud: aplicación a un programa de investigación sobre la tripanosomiasis americana Conceptual approaches and methodological proposals for the study of interactions between environment and health: application to a research program on American trypanosomiasis

Cadernos de Saúde Pública, 2003
Las modificaciones del paisaje causadas por las actividades y migraciones humanas contribuyen en hacer emerger o re-emerger enfermedades tropicales, particularmente aquellas cuya transmisión se realiza por insectos vectores que a menudo deben escapar a ...
Cristina Romaña, Laure Emperaire, Ana Maria Jansen   +2 more
doaj   +1 more source

The Role of Habitat, Climate, and Space in the Species and Traits Variation of Phytoplankton in Large Cascade Reservoirs

Ecology and Evolution, Volume 16, Issue 1, January 2026.
Phytoplankton beta diversity along cascade reservoirs of the Tocantins River is shaped by reservoir age, spatial arrangement, and environmental conditions. Younger, distant reservoirs show higher diversity, while intermediate ones tend toward homogenization. Environmental and spatial drivers differentially influence taxonomic and functional composition.
Idelina Gomes da Silva, Bárbara Dunck
wiley   +1 more source

Aedes albopictus in an area of Misiones, Argentina Aedes albopictus en un área de Misiones, Argentina

Revista de Saúde Pública, 2004
Until early 1998 the presence of Aedes albopictus had never been detected in Argentina. During April of the same year, few individuals of this species were recorded in 33 breeding sites found in 25 out of 161 inspected houses in the city of Eldorado ...
Nicolás Schweigmann, Darío Vezzani, Pablo Orellano, Jorge Kuruc, Rolando Boffi   +4 more
doaj   +1 more source

Evolutionary Changes in Crassulacean Acid Metabolism (CAM) and Related Traits During the Diversification of Aichryson (Crassulaceae) on the Macaronesian Islands

Ecology and Evolution, Volume 16, Issue 1, January 2026.
We explore evolutionary changes in Crassulacean acid metabolism (CAM) and associated traits during the diversification of Aichryson (Crassulaceae) across the Macaronesian Islands. By combining field data, physiological measurements and phylogenetic analysis, we identify shifts in photosynthetic strategy linked to habitat transitions.
Jessica A. Berasategui, Thibaud F. E. Messerschmid, Stefan Abrahamczyk, Ángel Bañares‐Baudet, Nadine Bobon, Gudrun Kadereit   +5 more
wiley   +1 more source

Do phytoplankton fractions < 20 μm dominate in tropical reservoirs independent of their trophy? [PDF]

, 2011
A spatial and temporal evaluation was made of the contribution of phytoplankton fractions (> 100 μm, 50-100 μm, 20-50 μm, 1.2-20 μm and 100 μm, 50 a 100 μm, 20-50 μm, 1.2 a 20 μm y < 1.2 μm) al total de la producción primaria en dos embalses tropicales ...
Ferragut, Carla, Gil-Gil, Francisca, Mattos Bicudo, Carlos E. de   +2 more
core  

Unifying microorganisms and macrograzers in intertidal rocky shore ecological networks

Ecology, Volume 107, Issue 1, January 2026.
Abstract Over the past decades, our understanding of the vital role microbes play in ecosystem processes has greatly expanded. However, we still have limited knowledge about how microbial communities interact with larger organisms. Many existing representations of microbial interactions are based on co‐occurrence patterns, which do not provide clear ...
Clara Arboleda‐Baena, Claudia Belén Pareja, Javiera Poblete, Eric L. Berlow, Hugo Sarmento, Ramiro Logares, Rodrigo De la Iglesia, Sergio A. Navarrete   +7 more
wiley   +1 more source

Enfoques conceptuales y propuestas metodológicas para el estudio de las interacciones entre el medio ambiente y la salud: aplicación a un programa de investigación sobre la tripanosomiasis americana

Cadernos de Saúde Pública, 2003
Las modificaciones del paisaje causadas por las actividades y migraciones humanas contribuyen en hacer emerger o re-emerger enfermedades tropicales, particularmente aquellas cuya transmisión se realiza por insectos vectores que a menudo deben escapar a ...
Romaña Cristina, Emperaire Laure, Jansen Ana Maria   +2 more
doaj  

Efeito da umidade do solo na biologia de Rhopalosiphum maidis (FITCH, 1856) (Hemiptera: aphididae) em milho. [PDF]

, 2018
O efeito da umidade do solo na biologia de Rhopalosiphum maidis (Fitch) em plantas de milho (Zea mays) foi avaliado em casa de vegetação. Foi utilizado o delineamento experimental inteiramente casualizado, com três tratamentos (20%, 40% e 100% de rotação
CRUZ, I., ECOLE, C. C., LOUZADA, J. N. C., MAIA, T. J. A. F., MAIA, W. J. M. S.   +4 more
core   +1 more source

Phytochemical diversity and seasonality are associated with a critical transition in plant–herbivore network structure

Ecology, Volume 107, Issue 1, January 2026.
Abstract Understanding critical transitions in ecological systems is fundamental for addressing various natural phenomena, from population outbreaks to sudden ecosystem collapses. Ecological interactions are key drivers of these transitions, and theory suggests that the networks formed by these interactions can undergo their own critical transition. By
Leandro G. Cosmo, Kate P. Maia, Paulo R. Guimarães Jr., Martin Pareja   +3 more
wiley   +1 more source

Tails of Biodiversity: Vertebrate Community Assessment in a Neotropical River Basin via eDNA Metabarcoding

Environmental DNA, Volume 8, Issue 1, January–February 2026.
This study used environmental DNA (eDNA) metabarcoding to assess vertebrate biodiversity in headwater streams of the Rio Santo Antônio basin, southeastern Brazil, a tributary of the Rio Doce. A total of 119 vertebrate OTUs were identified, with oxidation–reduction potential emerging as the strongest environmental predictor of species richness.
Larissa Moreira‐Silva, Rennan Garcias Moreira, Jim Perry, Walisson Kenedy‐Siqueira, Guilherme Costa Baião, Daniel Negreiros, Fernando Figueiredo Goulart, Josimar Daniel Gomes, Geraldo Wilson Fernandes   +8 more
wiley   +1 more source