Results 31 to 40 of about 3,193 (118)

Efecto de la disponibilidad de nitrógeno y de la densidad de plantas sobre el crecimiento inicial de la planta de trigo

Semiárida, 2020
Se trató de determinar las modificaciones que provocan las variaciones de la densidad de siembra y de la disponibilidad de nitrógeno sobre el crecimiento inicial de la planta medida a través de la producción de materia seca, número de macollos, número y ...
R. Braun, J. Dahir
doaj  

Synthesis of a National Soil Dataset Across Productive Land in Mexico: The Importance of Making Existing Data Accessible

European Journal of Soil Science, Volume 76, Issue 3, May–June 2025.
ABSTRACT The lack of soil data is a complication that most soil scientists will encounter throughout their career; this critical aspect is exacerbated due to the excessive cost of soil surveying. Consequently, it is essential to develop strategies that guarantee the permanent accessibility of past soil sampling efforts.
Carlos E. Arroyo‐Cruz, Blanca Prado, Melanie Kolb, Lucy Natividad Mora‐Palomino, Katherine Todd‐Brown, Mario Guevara   +5 more
wiley   +1 more source

Andean grassland stability across spatial scales increases with camelid grazing intensity despite biotic homogenization

Journal of Ecology, Volume 113, Issue 4, Page 931-942, April 2025.
Our results emphasize the necessity of considering the complex influences of grazing intensity on diversity and stability at different spatial scales for the effective management of Andean grasslands. Abstract Intensive land use and changing environmental conditions are reshaping the biodiversity, functioning and stability of local Andean grassland ...
Ana Patricia Sandoval‐Calderon, Maarten J. J. Meijer, Shaopeng Wang, Marijke van Kuijk, Pita Verweij, Yann Hautier   +5 more
wiley   +1 more source

Nitrogen and Phosphorus Allocation Strategies in a Chronosequence of Tropical Dry Forests: Plant Coordination and Environmental Drivers

Biotropica, Volume 57, Issue 2, March 2025.
We explored the allocation strategies of N and P in leaves and fine roots (metabolic organs) and, in stems and coarse roots (woody organs) of nine dominant tree species in secondary tropical dry forests using scaling analysis. The scaling relationships of P versus N concentrations in non‐leaf organs were isometric across secondary succession and ...
Emma J. M. Bretherick, Juan M. Dupuy, Felipe García‐Oliva, Anaitzi Rivero Villar, Julieta A. Rosell, Julio Campo   +5 more
wiley   +1 more source

Urea y pasta de soya como fuentes de nitrógeno para borregas gestantes

Revista Mexicana de Ciencias Pecuarias, 1982
El presente trabajo realizado en el instituto de Investigaciones de Rowett en Aberdeen, Escocia, se llevó a cabo para estudiar el grado de utilización de una fuente de nitrógeno no proteico en comparación con una fuente convencional de proteína ofrecida ...
José M. Zorrilla Ríos, John J. Robinson   +1 more
doaj  

Island restoration to rebuild seabird populations and amplify coral reef functioning

Conservation Biology, Volume 39, Issue 1, February 2025.
Abstract Mobile organisms like seabirds can provide important nutrient flows between ecosystems, but this connectivity has been interrupted by the degradation of island ecosystems. Island restoration (via invasive species eradications and the restoration of native vegetation) can reestablish seabird populations and their nutrient transfers between ...
Ruth E. Dunn, Cassandra E. Benkwitt, Olivier Maury, Nicolas Barrier, Peter Carr, Nicholas A. J. Graham   +5 more
wiley   +1 more source

SEASONAL VARIATION IN LEAF LITTER NUTRIENT CONCENTRATIONS OF VALDIVIAN RAINFOREST TREES VARIACION ESTACIONAL EN CONCENTRACIONES DE NUTRIENTES EN LA HOJARASCA DE CUATRO ESPECIES ARBOREAS DE LA PLUVISELA VALDIVIANA

Gayana: Botanica, 2003
Resorption of nutrients from senescing tissues is an important aspect of the nutrient economy of perennial plants, and a major influence on ecosystem nutrient dynamics.
Christopher H. Lusk, Francisco Matus, María Moreno-Chacón, Alfredo Saldaña, Mylthon Jiménez-Castillo   +4 more
doaj  

Review of ecological valuation and equivalency analysis methods for assessing temperate nearshore submerged aquatic vegetation

Conservation Biology, Volume 39, Issue 1, February 2025.
Abstract Nearshore seagrass, kelp, and other macroalgae beds (submerged aquatic vegetation [SAV]) are productive and important ecosystems. Mitigating anthropogenic impacts on these habitats requires tools to quantify their ecological value and the debits and credits of impact and mitigation.
Rachel E. Pausch, Jessica R. Hale, Peter Kiffney, Beth Sanderson, Sara Azat, Katie Barnas, W. Bryant Chesney, Natalie Cosentino‐Manning, Stephanie Ehinger, Dayv Lowry, Steve Marx   +10 more
wiley   +1 more source

Testing the contribution of vertebrate predators and leaf traits to mainland–island differences in insect herbivory on oaks

Journal of Ecology, Volume 113, Issue 1, Page 140-154, January 2025.
The authors explored how insularity influences herbivory in oaks across island–mainland sites. By experimentally excluding vertebrate predators (e.g. birds, bats) and measuring leaf traits (e.g. phenolics, specific leaf area, nutrients), they provide insights into the mechanisms driving island–mainland herbivory patterns.
Carla Vázquez‐González, Luis Abdala‐Roberts, Beatriz Lago‐Núñez, Lydia S. Dean, Miquel Capó, Raúl de la Mata, Ayco J. M. Tack, Johan A. Stenberg, Felisa Covelo, Ana Cao, Joana Cursach, Ana Hernández‐Serrano, Finn Hansen, Kailen A. Mooney, Xoaquín Moreira   +14 more
wiley   +1 more source

Grupos funcionales de plantas, producción de forraje y eficiencia de uso de radiación de pastizales naturales en condiciones potenciales y limitadas de agua y nitrógeno [PDF]

RIA: Revista Investigaciones Agropecuarias, 2011
Con el objetivo de analizar el efecto de la disponibilidad hídrica y nitrogenada sobre el crecimiento primavero estival de forraje, se condujo un experimento en un pastizal natural de la Pampa Deprimida (Argentina) con adecuado suministro de fósforo (P).
M.R. COLABELLI, M.G AGNUSDEI, J-L. DURAND   +2 more
doaj   +1 more source