Listar Artículos científicos por fecha de publicación
Mostrando ítems 41-60 de 557
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Efecto del nivel de alimentación sobre la producción de lana de dos líneas genéticas de ovinos
(Asociación Argentina de Producción Animal, 2010-07)A los fines de estudiar si ovinos genéticamente más productivos son también más eficientes en la conversión de alimento en lana y si esa eficiencia se mantiene en diferentes ambientes nutricionales se realizó un ensayo con ... -
Characterization of Awassi lamb fattening systems: a Syrian case study
(2010-10)Intensive lamb fattening systems are evolving in developing Middle Eastern countries due to high demand for lambs at favorable prices; however, little is known about their characteristics and constraints. A survey was ... -
Efficient sampling of ground-dwelling arthropods using pitfall traps in arid steppes
(Sociedade Entomológica do Brasil, 2010-12)Pitfall trapping is probably the most frequently used method for sampling grounddwelling arthropods. While the capture of specimens in pitfall traps largely depends on the number of individuals in the sampled area, trap ... -
Phenotypic variation of basic wood density in Pinus ponderosa plus trees = Variación fenotípica de la densidad básica de la madera de árboles plus de Pinus ponderosa
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2011)Phenotypic selection generally reduces the variability of both the selected trait and other associated characteristics. Some species show a negative strong relationship between growth traits and wood ... -
Can biosolids compost improve, in the short term, native vegetation and soils fertility in burned Nothofagus pumilio forest in Patagonia, Argentina? = ¿Puede el compost de biosólidos mejorar a corto plazo la vegetación nativa y las características de fertilidad del suelo en un bosque quemado de Nothofagus pumilio en la Patagonia Argentina?
(Facultad de Ciencias Forestales y Recursos Naturales, Universidad Austral de Chile, 2011)In the Patagonian Andean forests, wildfires principally have an anthropic origin and constitute one of the most important disturbances. They lead to severe losses of soil fertility and vegetation; particularly compromising ... -
Is forage productivity of meadows influenced by the afforestation of upstream hillsides? A study in NW Patagonia
(2011)Meadows are important reserves of water, with a key role in the maintenance of the biodiversity and productivity of ecosystems. In Patagonia, Argentina, afforestation with fast-growing exotic conifers has slowly but ... -
Control de la dinámica folicular ovárica en Llamas (Lama Glama) en posparto temprano
(UCOPress. Cordoba University Press, 2011)Se evaluó el efecto del acetato de medro-xiprogesterona (AMP, esponja intravaginal) con o sin inyección de benzoato de estradiol (BE) sobre el patrón de regresión folicular, la emergencia de la onda folicular y la tasa ... -
Mulinum spinosum y la carne de cordero: detección de su presencia en ovinos vivos = Mulinum spinosum and lamb meat: detecting its presence on live sheep
(UCOPress. Cordoba University Press, 2011)En Patagonia, la ganadería ovina es una de las principales actividades económicas, pero la calidad de la carne de cordero se ve afectada por el sabor desagradable que toma a causa de la ingesta de neneo (Mulinum spinosum ... -
Perfiles de diámetro de fibra en lanas preparto de ovejas merino. 2. Estudio comparativo de estados fisiológicos
(Asociación Argentina de Producción Animal, 2011-02)Se estudió el perfil del diámetro de fibras de lana de ovejas Merino superfinas (n=438) en cuatro estados fisiológicos, según estén preñadas o secas (PRE, SEC, respectivamente) y hayan destetado o no un cordero en el ... -
Ecosystemic structural–functional approach of the state and transition model
(Wiley, 2011-02)Objective: To contribute to the integration of key ecological concepts such as dynamic equilibrium, critical threshold, resistance and resilience to the ‘State and Transition Model’ (STM), in order to apply them in a more ... -
Why do Pinus species have different growth dominance patterns than Eucalyptus species? A hypothesis based on differential physiological plasticity
(Elsevier, 2011-03-15)It has been observed that Eucalyptus stands show high growth dominance levels while Pinus stands show null or low growth dominance levels. We hypothesized that this differential behaviour is linked to a higher degree of ... -
Is forage productivity of meadows influenced by the afforestation of upstream hillsides? A study in NW Patagonia = Afecta la presencia de forestaciones ubicadas en las laderas aguas arriba de mallines su productividad forrajera? Un estudio en el Noroeste Patagónico
(Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), (España), 2011-04-13)Meadows are important reserves of water, with a key role in the maintenance of the biodiversity and productivity of ecosystems. In Patagonia, Argentina, afforestation with fast-growing exotic conifers has slowly but ... -
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 ... -
Genetic variation of xylem hydraulic properties shows that wood density is involved in adaptation to drought in Douglas-fir (Pseudotsuga menziesii (Mirb.))
(Springer, 2011-05)Relationships between wood density and hydraulic efficiency and safety (hydraulic specific conductivity and vulnerability to cavitation, respectively) could clarify the physiological process explaining the impact of density ... -
Circadian oscillation of gibberellin signaling in Arabidopsis
(National Academy of Sciences, 2011-05)Circadian clocks are endogenous timekeeping mechanisms that allow organisms to anticipate rhythmic, daily environmental changes. Temporal coordination of transcription results in a set of gene expression patterns with ... -
Distribución natural de Nothofagus alpina y Nothofagus obliqua (nothofagaceae) en Argentina, dos especies de primera importancia forestal de los bosques templados norpatagónicos
(Sociedad Argentina de Botánica, 2011-06)Conocer la distribución natural de cualquier especie es esencial para poder planificar su conservación o uso. El Raulí [Nothofagus alpina (Poepp. & Endl.) Oerst. = Nothofagus nervosa (Phil.) Dim. et Mil.] y el Roble Pellín ... -
Resistance of Fasciola hepatica against triclabendazole in cattle in Patagonia (Argentina)
(2011-06)Triclabendazol (TCBZ) es el fármaco más utilizado para el control de la fasciolosis en rumiantes. Es muy eficaz contra los estadios inmaduros y adultos de Fasciola spp. y frecuentes tratamientos dentro del período prepatente ... -
Influences of pine plantations on small mammal assemblages of the Patagonian forest-steppe ecotone
(De Gruyter, 2011-08)The management of forested landscapes for biodiversity conservation is increasingly recognized as an important objective in Argentina. However, pine plantations are being established replacing native pristine or human ... -
Ecological effects and management of invasive alien Vespidae
(Springer, 2011-08)Insect species associated with human goods continue to be accidentally introduced into new locations. A small proportion of these introduced species become invasive, causing a range of impacts in the receiving community. ... -
Integrating circadian and gibberellin signaling in Arabidopsis : Possible links between the circadian clock and the AtGID1 transcription
(Taylor & Francis, 2011-09)The circadian clock acts as central coordinator of plant activity, and it regulates key traits for plant fitness such as flowering time, gas exchange, growth and stress responses. In the May issue of the Proceedings of the ...