Results 11 to 20 of about 153,393 (167)

Effects of nitrogen deposition on territory numbers of breeding birds. [PDF]

Conserv Biol
Abstract Deposition of atmospheric N (nitrogen) is assumed to be a major cause of biodiversity decline in Europe. To date, few studies on the direct or indirect effects of N on bird species have been conducted. Using Swiss bird count data and habitat data, we analyzed the correlation of N deposition with numbers of territories of 112 breeding bird ...
Meichtry-Stier K, Korner P, Birrer S, Knaus P.   +3 more
europepmc   +2 more sources

Strong scale-dependent relationships between fine-root function and soil properties uncovered with spatially coupled sampling. [PDF]

New Phytol
Summary Substantial fine‐root trait variation is found at fine spatial scales but rarely linked to edaphic variation. We assessed the spatial scales of variation in fine‐root traits and adjacent soils using a spatially coupled, nested sampling scheme along a fertility gradient in a seasonally dry tropical forest tree, Handroanthus ochraceus.
Dallstream C, Milder L, Powers JS, Soper FM.   +3 more
europepmc   +2 more sources

Chromosomal Inversion Associated With Diet Differences in Common Quails Sharing Wintering Grounds. [PDF]

Ecol Evol
A large chromosomal inversion in common quails (Coturnix coturnix) is associated with phenotypic traits. In a wintering population in southern Spain, we found all three karyotypes coexisting but showing differences in migratory behavior and diet, as exemplified by the isotopic signature.
Vinagre-Izquierdo C, Sanchez-Donoso I, Leonard JA, Rodríguez-Teijeiro JD, Vilà C.   +4 more
europepmc   +2 more sources

Eficiencia del uso de nitrógeno en sorgo sensible al fotoperíodo en asocio con maíz en El Salvador

Agronomía Mesoamericana, 2005
Eficiencia del uso de nitrógeno en sorgo sensible al fotoperíodo en asocio con maíz en El Salvador. En El Salvador se llevó a cabo un estudio durante los años 2001 y 2002 en Izalco y Santa Cruz Porrillo, con las variedades de sorgo: 86-EO-226, 85-SCP-805,
José Wilfredo Castaneda Chávez, Stephen C. Mason, Quirino Argueta-Portillo, Rolando Ventura-Elías, Máximo Hernández-Valle, René Clará-Valencia   +5 more
doaj   +1 more source

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

determinación de la cinética de remoción de nitrógeno proveniente de aguas residuales domésticas en suelos superficiales asociados a recarga de acuíferos de la zona de expansión occidental de Pereira [PDF]

, 2015
En el presente documento se expondrán los resultados de la investigación para la determinación de la cinética de remoción de nitrógeno (principalmente en su forma amoniacal) presente en el agua residual doméstica proveniente de la Planta de Tratamiento ...
García Zapata, Miguel Ángel, Salemi Herrera, Steffany   +1 more
core  

Evaluación de dosis de fertilización nitrogenada y densidad de siembra sobre el rendimiento del cultivo de repollo (Brassica oleraceae, var capitata L.) híbrido Izalco [PDF]

, 2007
Se realizó un estudio en la Finca San Bernardo, Municipio de Nandasmo – Masaya en el período del 21 d e Agosto al 21 de Diciembre de 2004. S e probaron tres dosis de fertilización nitrogenada siendo estas 75 kg/ha, 150kg/ha, 225 kg/ha, un ...
Porras Alemán, Francisco José
core  

The Impact of Sustainable Nitrogen Management on the Health Risks of Unsafe Drinking Water and the Mediating Role of Food Production

Review of Policy Research, Volume 42, Issue 6, Page 1496-1508, November 2025.
ABSTRACT This study adopts a policy‐centric perspective to explore the complex relationship between sustainable nitrogen management (SNM) and the health risks associated with unsafe drinking water. The critical policy challenge lies in balancing the essential role of nitrogen fertilizers in achieving high agricultural productivity with their ...
Mingean Park, Joonwoo Lee, Preston Varkpeh, Daniel J. Mallinson   +3 more
wiley   +1 more source

Optimización de medios de cultivos con fuentesagroindustriales para el crecimiento del ñame espino(Dioscorea rotundata Poir)

Fave: Sección Ciencias Agrarias, 2022
Los inoculantes microbianos constituyen una alternativa para contrarrestar los impactos ambientales adversos que ejercen los agroquímicos sintéticos, facilitan el crecimiento vegetal y el rendimiento de los cultivos de manera ecológica.
L. L. Luna Castellanos, D. B. Sánchez López   +1 more
doaj   +1 more source

Preliminary results of a network of trials related to sugarcane nutrition in Reunion Island [PDF]

, 2010
IN REUNION ISLAND, sugarcane is grown under highly contrasting climatic conditions, from the sea level to the highlands (up to 1000 m altitude), with very different soil types.
Chabalier, Pierre, Fillols, Emilie, Marion, Daniel, Payet, O.   +3 more
core