Títulos
Mostrando ítems 772-791 de 1067
-
Point of no return? Rehabilitating desgraded soils for increased crop productivity on samllholder farmas in eastern Zimbabwe
(2015-02)Soil degradation is a major threat to Southern Africa's agricultural production. Crops show generally weak responses to mineral fertilizers on degraded soils. A three-year study was conducted between 2009 and 2012 on ... -
Polistes dominula (Hymenoptera: Vespidae) paper wasps detect native grasshoppers using olfactory cues
(Wiley, 2023-10)Polistes dominula is an invasive social wasp that preys on the grasshopper Dichroplus elongatus, which constitutes a potential agricultural pest in Northwest Patagonia. This grasshopper feeds on a wide variety of plants, ... -
Polistes dominula, “falsa chaqueta amarilla” : la avispa de papel presente en la Patagonia Argentina
(Ediciones INTA, 2018-12)Polistes dominula es una especie invasora exitosa, que ha mostrado tener efectos ambientales y económicos negativos en diferentes partes del mundo, sumado a su poderosa picadura. Desde el año 2003 esta especie está presente ... -
Population ecology and classical biological control of forest insect pests in a changing world
(Elsevier, 2022-09-15)Forests are important for climate regulation and provide wood and fiber to an increasing human population. Forest systems encompass a large part of the world’s land surface area and they are increasingly threatened by ... -
Population genetic structure and historical dispersal patterns in the subterranean rodent Ctenomys “chasiquensis” from the southeastern Pampas region, Argentina
(Elsevier, 2016-05)Gene flow plays an essential role in the evolutionary history of the organisms and helps to identify those historical landscape features that most likely had affected the dispersal patterns. In this work, we assess, using ... -
¿Por qué mis gallinas ponen huevos pequeños?
(Ediciones INTA, 2017-12)En gallinas Ponedoras y Criollas suele observarse en determinada época del año una disminución repentina del tamaño de algunos huevos. Existe un mito que lo asocia a huevos que ponen los machos, y que de ellos sale “el ... -
Potencial toxigénico de Astragalus pehuenches Nierdel en Argentina
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2018-12)El género Astragalus está ampliamente distribuido en el mundo y algunas especies son tóxicas para el ganado. En Argentina, Astragalus pehuenches ha sido incriminado históricamente en casos de intoxicación en ovinos, bovinos ... -
Potencial uso en la evaluación de lanas y fibras de animales de un novedoso caracterizador electrónico
(Universidad Mayor de San Marcos. Facultad de Medicina Veterinaria, 2018)Se desarrolló y validó un novedoso Caracterizador Electrónico de Fibras (CEF). En el desarrollo del CEF se utilizaron y ensamblaron componentes mecánicos, ópticos, electrónicos e informáticos. Para la calibración, validación ... -
Potencial uso en la evaluación de lanas y fibras de animales de un novedoso caracterizador electrónico
(Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos (Perú), 2018)Se desarrolló y validó un novedoso Caracterizador Electrónico de Fibras (CEF). En el desarrollo del CEF se utilizaron y ensamblaron componentes mecánicos, ópticos, electrónicos e informáticos. Para la calibración, validación ... -
Potential impact of the leaf‐cutting ant Acromyrmex lobicornis on conifer plantations in northern Patagonia, Argentina
(Wiley, 2011-05)The economic losses associated with crop damage by invasive pests can be minimized by recognizing their potential impact before they spread into new areas or crops. We experimentally evaluated the preferences of the ... -
Prácticas para incrementar la supervivencia de los corderos
(Ediciones INTA, 2019-12)En este artículo se presentan cuáles son las principales causas que determinan una baja supervivencia de corderos y cuáles son las principales prácticas de manejo para reducir este problema. -
Prácticas y estrategias agroecológicas comunitarias y familiares en la crianza y flujo de papas nativas en la Puna de Atacama. El caso del agroecosistema tradicional de la comunidad de Urcuro, Provincia de Salta
(Edición del Autor, 2018-07)El transcurrir de la vida de las comunidades atacameñas, en un ambiente hostil como lo es el altiplano salteño, se ha dado en torno a un contexto de invisibilización socio-politico y cultural, atravesando una historia ... -
Pre-Selection test to identify high responder donor goats
(2016)The aim of the study was to evaluate the feasibility of pre-selection of high or low responder does prior to the superovulatory protocols. Twenty Saanen does received 800 IU of equine chorionic gonadotropin (eCG) at the ... -
Predicting North American Scolytinae invasions in the Southern Hemisphere
(2017-01)Scolytinae species are recognized as one of the most important tree mortality agents in coniferous forests worldwide, and many are known invaders because they are easily transported in wood products. Nonnative trees planted ... -
Predicting poaching hotspots in the largest remnant of the Atlantic Forest by combining passive acoustic monitoring and occupancy models
(Elsevier, 2022-08)Poaching can have major impacts on wild animal populations and is pervasive in tropical regions. The spatial distribution of this furtive activity is particularly difficult to estimate in large natural areas, and this ... -
Predicting the distribution of plant species from southern South America: are the hotspots of genetic diversity threatened by climate change?
(Springer, 2024-01)Biodiversity in all its dimensions is being threatened by climate change and the impact of human activities. Genetic diversity is a key dimension of biodiversity underlying adaptation to global changes. Here we assess the ... -
Prediction of hydraulic conductivity loss from relative water loss: new insights into water storage of tree stems and branches
(Wiley, 2019-04)More frequently occurring, drought waves call for a deeper understanding of tree hydraulics and fast and easily applicable methods to measure drought stress. The aim of this study was to establish empirical relationships ... -
Preferencias de hospedador y hábitat de insectos fitófagos asociados a Nothofagus spp.
(Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, 2015-03)El bosque nativo Andino- Patagónico se caracteriza por la presencia de diversas especies de Nothofagus (Fagales: Nothofagaceae). Estas especies leñosas no sólo representan una pieza del patrimonio natural, sino que además ... -
Preselection of high and low ovulatory responders in sheep multiple ovulation and embryo transfer programs
(2015)The present study evaluated the feasibility of carrying out an easy-to-handle and cost-efficient test for the preselection of high– and low–ovulatory responder ewes under superovulatory protocols. The test was based on the ... -
Pretreatments Effect in Drying Behaviour and Colour of Mature and Immature ‘Napolitana’ Sweet Cherries
(Springer, 2014-06)The effect of different treatments on drying behaviour and colour of mature and immature cherries (Napolitana var.) has been studied. Drying was carried out at 70 °C with air at 4 m/s speed and 8 % relative humidity, and ...