Artículos científicos: Envíos recientes
Mostrando ítems 61-80 de 216
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Environmental variables influencing regeneration of Nothofagus pumilio in a system with combined aggregated and dispersed retention
(Elsevier, 2011-01-01)The current silvicultural prescriptions for Nothofagus are designed to stimulate natural regeneration by opening the canopy. One of these methods is variable retention, which can include either or both aggregated and ... -
Carbon (δ13C) and nitrogen (δ15N) stable isotope composition in plant and soil in Southern Patagonia’s native forests.
(Wiley, 2012-01)Stable isotope natural abundance measurements integrate across several biogeochemical processes in ecosystem N and C dynamics. Here, we report trends in natural isotope abundance (d13C and d15N in plant and soil) along a ... -
Producción y calidad de gramíneas en un gradiente de calidades de sitio y coberturas en bosques de Nothofagus antarctica (G. Forster) Oerst. en Patagonia
(Asociación Argentina de Ecología, 2012-04-01)El presente estudio tuvo como objetivo cuantificar la producción y calidad de forraje de las gramíneas que conforman el sotobosque de bosques de Nothofagus antarctica (ñire) sometidos a aprovechamiento silvopastoril, que ... -
Litter decomposition and nutrients dynamics in Nothofagus antarctica forests under silvopastoral use in Southern Patagonia.
(Springer, 2012-01-24)The role of environmental variables on litter decomposition and its nutrient release in Nothofagus antarctica forest in Patagonia is poorly understood. Moreover, in these forests under silvopastoral use there are few ... -
Human appropriation of net primary production related to livestock provisioning ecosystem services in Southern Patagonia
(MDPI, 2022-06-22)Human appropriation of net primary productivity (HANPP) integrates ecological and socioeconomic perspectives on land use by quantifying the amount of net primary production (NPP) appropriated by society through biomass ... -
Linking species distribution and territorial planning to the management of the endangered Gonopterodendron sarmientoi in native forests of the Chaco region, Argentina
(Elsevier, 2022-06-11)For management and conservation strategies in the long term is necessary to know the species distribution and main biophysical aspects that determine the structure and dynamics of the forest. The aim of this work was to ... -
Effect of defoliation frequency on Rytidosperma virescens plants and arbuscular mycorrhizal fungi colonization
(Elsevier, 2022-06-09)Rangelands provide different ecosystem services to satisfy human needs. Although grazing management in southern Patagonia is mostly characterized by extensive continuous grazing, rotational grazing management may improve ... -
Effects of long-term low intensity silviculture and habitat on birds in Nothofagus antarctica forests of south Patagonia
(Elsevier, 2022-04-30)Low intensity silviculture has been used to decrease the impact of forest harvesting, for example, on bird species and structural diversity. The objective of this work was to analyse the long-term effect of thinning on ... -
MASTREE+: Time-series of plant reproductive effort from six continents
(Wiley, 2022-04-01)Significant gaps remain in understanding the response of plant reproduction to environmental change. This is partly because measuring reproduction in long-lived plants requires direct observation over many years and such ... -
Nueva base de datos reticulada de temperatura para la provincia de Santa Cruz, Argentina
(Centro Argentino de Meteorólogos (CAM), 2022-06)La temperatura del aire es una variable biofísica que incide en la mayoría de los procesos bióticos y abióticos, así como también es una de las variables esenciales en estudios climatológicos, ecológicos e hidrológicos, y ... -
Structure and function of soil microbial communities in fertile islands in austral drylands
(Wiley, 2022-04-15)Fertile islands are an important determinant of ecosystem functioning in drylands. These resourcerich patches are maintained by complex interactions among biotic and abiotic factors. Soil microorganisms are responsible for ... -
Establecimiento y producción de forraje de cereales de invierno en la patagonia austral
(Asociación Argentina de Producción Animal, 2020-12)Se realizó un ensayo con el objetivo de evaluar el establecimiento y la producción de forraje para henificación de una variedad y líneas de triticale (X Triticosecale Wittmack), variedades de trigo pan (Triticum aestivum ... -
Manejo de Bosques con Ganadería Integrada (MBGI) en Argentina
(INIA (Uruguay), 2022-01)La mayor parte de los bosques nativos en Argentina cuentan con ganadería. En este contexto, en 2015 se firma el Convenio Marco Interinstitucional entre los actuales Ministerios de Agroindustria y el de Ambiente y Desarrollo ... -
Nutrient enrichment increases invertebrate herbivory and pathogen damage in grasslands
(British Ecological Society, 2022-02)1- Plant damage by invertebrate herbivores and pathogens influences the dynamics of grassland ecosystems, but anthropogenic changes in nitrogen and phosphorus availability can modify these relationships. 2- Using a globally ... -
Precipitation is the key determinant of topsoil δ15N values in southern Patagonia’s semiarid rangelands
(American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, 2022-02-11)Nitrogen (N) cycling in rangeland soils could potentially be controlled by water supply, stocking rates, or a range of other variables, such as ecosystem N stocks. To gauge the relative importance and elucidate possible ... -
Environmental Conditions and Grazing Exerted Effects on Arbuscular Mycorrhizal in Plants at Southern Patagonia Rangelands
(Elsevier, 2022-03)Arbuscular mycorrhizal (AM) fungi play a major role in maintaining ecosystem functions. AM fungi are found in most ecosystems including rangelands currently under increasing pressures from human activities. Southern Patagonia ... -
Changes in nutrient and fibre tissue contents in Nothofagus pumilio trees growing at site quality and crown class gradients
(Elsevier, 2022-02-01)Estimation of biomass and nutrient contents in tree components are essential for evaluating the impact of harvesting on carbon fixation capacity, bio-element recycling, and long-term effect on the balance that influence ... -
Multi-taxon biodiversity assessment of Southern Patagonia: Supporting conservation strategies at different landscapes.
(Elsevier, 2022-04-01)In the last years, different spatial analyses were developed to support multi-taxon biodiversity conservation strategies. In fact, the use of species distribution models as input allowed to create spatial decision-support ... -
The number of tree species on Earth
(National Academy of Sciences, 2022-02-08)One of the most fundamental questions in ecology is how many species inhabit the Earth. However, due to massive logistical and financial challenges and taxonomic difficulties connected to the species concept definition, ... -
Opposing community assembly patterns for dominant and non-dominant plant species in herbaceous ecosystems globally
(Wiley Ecology and evolution, 2021-11-22)Biotic and abiotic factors interact with dominant plants—the locally most frequent or with the largest coverage—and nondominant plants differently, partially because dominant plants modify the environment where nondominant ...