Results 31 to 40 of about 60,504,151 (113)

Local canopy cover, shade tree identity and landscape tree cover shape leaf‐cutter ant nest density and herbivory in cacao agroforestry systems

Journal of Applied Ecology, Volume 63, Issue 4, April 2026.
Our findings provide practical guidance for agroforestry management by demonstrating that intercropping with selected species can mitigate damage from leaf‐cutter ants in cacao agroforests. At the landscape scale, high tree cover was associated with low herbivory rates, emphasising the need to maintain or restore forested habitats.
Blanca Ivañez‐Ballesteros, Melvin Opolka, Pablo Aycart‐Lazo, Carolina Ocampo‐Ariza, Bea Maas, Evert Thomas, Teja Tscharntke, Marcell Karl Peters, Ingolf Steffan‐Dewenter   +8 more
wiley   +1 more source

Supervivencia en plantaciones de Pinus pseudostrobus Lindl. en función del sistema de producción y preacondicionamiento en vivero

, 2018
Se evaluo la supervivencia de una plantacion de Pinus pseudostrobus como resultado del efecto del sistema de produccion y el preacondicionamiento de las plantas en vivero; ademas, se analizo el riesgo de mortalidad en funcion de su calidad morfologica ...
J. A. Rodríguez, Marco Aurelio González Tagle, José Ángel Prieto Ruíz   +2 more
semanticscholar   +1 more source

Assessing contributions of deterministic versus stochastic processes to local species assembly: A field experiment with annual plant‐dominated communities in gypsum systems

Journal of Ecology, Volume 114, Issue 3, March 2026.
In this study, we experimentally show that stochasticity can play prominent roles in driving local species assembly in annual plant‐dominated communities of semiarid gypsum ecosystems. Drylands are traditionally viewed as restrictive environments that impose strong deterministic filtering effects, but neutral events can also contribute decisively to ...
Laura Ortiz, Arantzazu L. Luzuriaga, Lars Götzenberger, Pablo Ferrandis   +3 more
wiley   +1 more source

Modelo económica de demanda de energía eléctrica en la industria colombiana

Lecturas de Economía, 2010
Este artículo busca encontrar los determinantes económicos de la demanda industrial de energía eléctrica en Colombia durante el período 1970-1983. La estimación de las ecuaciones de demanda derivadas de la función translogarítmica de costos muestra la ...
Jesús Botero, Elkin Castaño, Carlos Eduardo Vélez   +2 more
doaj   +1 more source

Calidad de la semilla de trigo de temporal en función del ambiente de producción

, 2017
En Mexico se emplea 15% de la produccion de trigo como semilla. La capacidad de las semillas para germinar y producir una planta normal, es el principal atributo para evaluar su calidad.
R. Sosa, A. C. Carballo, H. E. V. Mir, A. H. Livera   +3 more
semanticscholar   +1 more source

Quality Infrastructure for Resilient Pharmaceutical Manufacturing in Ethiopia: A Comparative Archival Review

Journal of Critical Infrastructure Policy, Volume 7, Issue 1, Spring/Summer 2026.
ABSTRACT The National Quality Infrastructure (NQI) in a given country provides the essential framework for quality assurance integrating standardization, metrology, accreditation, and conformity assessment to create the technical backbone for industry and trade. Hence, building a resilient NQI is fundamental to securing medicine quality, enabling local
Addisu Afrassa Tegegne, Mesfin Demissie Woldecherkos, Habtewold Deti Waktola, Sultan Suleman   +3 more
wiley   +1 more source

Talking as friends: Weaving local and scientific knowledge to co‐produce an integrated index to assess rangeland multifunctionality in a dryland Biosphere Reserve in Mexico

People and Nature, Volume 7, Issue 11, Page 3036-3056, November 2025.
Abstract The complexity of sustainability challenges and the need for transformative change have prompted the exploration of novel approaches for knowledge co‐generation and decision‐making. This calls for integrative assessment methods that meaningfully include and represent diverse knowledge systems, capturing multiple values, needs and interests as ...
Ricardo Ismael Mata‐Páez, Elisabeth Huber‐Sannwald, Natalia Martínez‐Tagüeña, Ruperto Cázares‐Reyes, Víctor Manuel Reyes‐Gómez, Juan José López‐Pardo, Sandra Hernández‐Valdez   +6 more
wiley   +1 more source

Histological and Gene Expression Analyses of the Arm and Finger Macroglands of Two Hyloxalus Frogs (Dendrobatidae)

Molecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Chemical communication during courtship is well documented in salamanders and newts, but its role in frogs is less understood. In some Neotropical poison frogs, males exhibit specialised mucous glands (SMGs) in the hand integument that express high levels of sodefrin precursor‐like factors (SPFs), an amphibian pheromone. Some species also show
Diana Abondano Almeida, Marvin Anganoy‐Criollo, Taran Grant, Sofiia Klimovych, Lisa M. Schulte   +4 more
wiley   +1 more source

La función Cobb-Douglas de la producción semintensiva de leche en el sur del Estado de México (The Cobb-Douglas function of semi-intensive milk production in the south of the state of Mexico)

, 2018
Se estimo una funcion de produccion tipo Cobb-Douglas bivariada seudocuadratica para determinar el nivel optimo tecnico en la oferta semintensiva de leche, mediante dos procedimientos matematicos y probar si conducen a la misma solucion.
S. Rebollar-Rebollar, N. Juárez, Eugenio Guzmán Soria   +2 more
semanticscholar   +1 more source

Indice

, 1981
Contenido del Vol.
Forma y, Función
core   +1 more source