Artículos científicos: Envíos recientes
Mostrando ítems 181-200 de 646
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Relationships between land-use intensity, woody species diversity, and carbon storage in an arid woodland ecosystem
(Elsevier, 2023-02)Forest ecosystems play a key role in providing multiple ecosystem services, such as carbon fixation and storage, but face pressures from human development that jeopardize their integrity and functioning. Accurately ... -
Short-term energy supplementation before lambing improves maternal behaviour, udder volume, colostrum viscosity and lamb birthweight in ewes under extensive grazing
(Elsevier, 2023-02)The aim of the present experiment was to evaluate the effect of short-term energy supplementation before lambing on maternal and lamb behaviour and colostrum production in a large-scale trial in Merino sheep under extensive ... -
Strategies Steering Intensification Pathways of Farmers in Central Malawi
(Springer, 2023-06)Smallholder farmers face many challenges to improve their livelihoods and food security. Intensification of agricultural production can help to achieve these goals. Yet farmers are highly heterogenous in their strategies ... -
Información científica clave para la gestión y conservación del ecosistema biocultural del Pewén en Chile y Argentina = Relevant scientific information for management and conservation of the Pewen biocultural ecosystem in Chile and Argentina
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2023-05)El bosque de Araucaria araucana (“pewén” en lengua Mapuche), con sus especies asociadas del género Nothofagus, es singular desde el punto de vista evolutivo, biológico y sociocultural. Por la interdependencia con el pueblo ... -
Manejo de Bosques con Ganadería Integrada en Patagonia argentina: ajuste metodológico para la determinación de la línea de base en ecosistemas complejos y paisajes heterogéneos = Forest Management with Integrated Livestock in Argentine Patagonia: methodological adjustment for determining the baseline in complex ecosystems and heterogeneous landscapes
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2023-05)El Manejo del Bosque con Ganadería Integrada (MBGI) es una propuesta técnica que se basa en el manejo de los componentes forestal, ganadero, forrajero y ambiental, articulada como un plan predial factible de implementar. ... -
Colonización micorrícica de los plantines de ciprés de la cordillera en relación con la disponibilidad de fósforo y agua en vivero = Mycorrhizal colonization of mountain cypress seedlings in relation to phosphorus and water availability under nursery conditions
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2023-05)La asociación de raíces con hongos micorrícicos aumenta el prendimiento en la implantación de especies forestales. El ciprés de la cordillera forma naturalmente micorrizas del tipo arbusculares (MA). En general, el uso de ... -
Plantación de especies forestales nativas en matorrales de Patagonia norte: respuesta a la apertura inicial de dosel en sitios contrastantes = Planting native forest species in northern Patagonian woodlands: response to canopy opening in contrasting sites
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2023-05)Una estrategia de manejo forestal que podría combinar exitosamente la producción y la conservación de la biodiversidad en bosques naturales, es su enriquecimiento con árboles nativos de valor maderero. En ciertos bosques ... -
Banco de plantas con cría diferida como alternativa para la producción continua de plantines de lenga en el vivero = Seedling bank with deferred growth as an alternative for the continuous production of lenga plants in the nursery
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2023-05)La lenga (Nothofagus pumilio) es un árbol nativo de primera importancia en la Patagonia. Su producción cíclica de semillas y la falta de protocolos que garanticen su conservación por varios años limitan la capacidad de ... -
Crecimiento diferencial de clones de maqui seleccionados en Argentina, según su cultivo bajo distintas condiciones de radiación solar y riego = Differential growth of selected maqui clones in Argentina, according to their cultivation under different conditions of solar radiation and irrigation
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2023-05)El maqui (Aristotelia chilensis) ha cobrado gran importancia por ser uno de los berries con mayores niveles de capacidad antioxidante hasta ahora conocido y cuya demanda internacional se ha incrementado. Actualmente no ... -
The Ambrosia Beetle Megaplatypus mutatus: A Threat to Global Broad-Leaved Forest Resources
(Entomological Society of America, 2022-08)We provide scientists and decision-makers with up-to-date information on Megaplatypus mutatus (Coleoptera: Curculionidae: Platypodinae), a forest insect native to South America that has invaded other regions. Emphasis is ... -
Características de la lana, peso y condición corporal en los ovinos criollos del noroeste de la provincia de Catamarca, Argentina = Characteristics of wool, weight and body condition in Creole sheep from the northwest of the province of Catamarca Argentina
(Asociación Latinoamericana de Producción Animal, 2022)Actualmente la raza ovina criolla argentina ocupa un lugar destacado en la producción ganadera nacional, siendo la segunda raza en número de ejemplares luego de la Merino. En la provincia de Catamarca es el recurso ovino ... -
Spatiotemporal outbreak dynamics of bark and wood-boring insects
(Elsevier, 2023-02)Bark and wood-boring insects (BWI) can cause important disturbances in forest ecosystems, and their impact depends on their spatiotemporal dynamics. Populations are usually at stable, low densities but can be disrupted by ... -
Honeydew production by the giant willow aphid (Tuberolachnus salignus, Hemiptera: Aphididae) and its effect on foraging yellowjackets (Hymenoptera: Vespidae)
(Wiley, 2023-08)BACKGROUND: Understanding the factors that promote the success of invasive species is important for managing biological invasions. Interactions between invasives and other species (e.g. competitors, pathogens, or predators), ... -
Monthly variations of forcing mechanisms of austral summer precipitation in subtropical Argentina
(Elsevier, 2023-04)Summer precipitation is a crucial variable for Subtropical Argentina (STAr) from a social and economic perspective. Monthly forcing mechanism variations of subregional summer precipitation over STAr are studied. Most ... -
Archetypal classification of vegetation dynamics of a humid subtropical forest region from North-East Argentina
(Elsevier, 2023-04)With the aim of studying the primary productivity dynamics of subtropical forests with different degrees of intervention or change due to human intervention, we classify the ecosystems of an area in northeastern Argentina, ... -
Effect of temporal and spatial noise colour in insect outbreak frequency
(Springer, 2023-06)Insect outbreaks are a common multicausal population phenomenon that is characterised by a fast growth of the population, followed by an equally sudden collapse in a relatively short period in the manner of an excitable ... -
Host selection behaviour of the banded pine weevil, Pissodes castaneus (Coleoptera: Curculionidae)
(Wiley, 2023-08)Pissodes castaneus represents an emerging pest species for Pinus spp. production in Latin America. This species attacks all the cultivated pine species in Patagonia Argentina causing wood damage and tree death. The objectives ... -
Oviposition substrate location by the invasive woodwasp Sirex noctilio: the combined effect of chemical cues emitted by its obligate symbiont Amylostereum areolatum and different host-tree species
(Wiley, 2023-06)BACKGROUND: Sirex noctilio is an invasive forest wasp that affects pines and can result in severe economic losses. The use of semiochemicals offers an opportunity to develop sensitive and specific capturing systems to ... -
Does competition management improve the ecophysiological response to water shortage of mixed woodland species of North Patagonia?
(Elsevier, 2023-08)Globally, the increasing forests vulnerability and drought-induced forest mortality events, extended to a larger scale, may have the potential to rapidly alter forest functioning and the provision of ecosystem services. ... -
Lexical analysis improves the identification of contextual drivers and farm typologies in the assessment of transitions to agroecology through TAPE – A case study from rural Nicaragua
(Elsevier, 2023-06)CONTEXT: The Tool for Agroecological Performance Evaluation (TAPE) has been developed to assess the degree of transition to agroecology (Step 1) and the agroecological performance (Step 2) of family farms. However, while ...