Artículos científicos: Envíos recientes
Mostrando ítems 221-240 de 286
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Remotely‐sensed primary productivity shows that domestic and native herbivores combined are overgrazing Patagonia
(Wiley; British Ecological Society, 2019-04)1.Carrying capacity is the maximum animal density an area can sustain without deterioration of its resources. Overgrazing has degraded Patagonia, but sheep stocks decreased and gave way to mixed systems with cattle, goats ... -
Agroforestry landscapes and global change: landscape ecology tools for management and conservation
(Springer, 2012-07)Forest ecosystems are impacted by multiple uses under the influence of global drivers, and where landscape ecology tools may substantially facilitate the management and conservation of the agroforestry ecosystems. The use ... -
Carbon isotopic signatures of soil organic matter correlate with leaf area index across woody biomes
(Wiley, 2014-11)Leaf area index (LAI), a measure of canopy density, is a key variable for modelling and understanding primary productivity, and also water use and energy exchange in forest ecosystems. However, LAI varies considerably with ... -
Soil carbon is a useful surrogate for conservation planning in developing nations
(Nature Research, 2019-03)Defining the optimal placement of areas for biodiversity conservation in developing nations remains a significant challenge. Our best methods for spatially targeting potential locations for biodiversity conservation rely ... -
Variation of grazing‐induced vegetation changes across a large‐scale productivity gradient
(Wiley, 2014-01)Questions: Does the magnitude of grazing‐induced changes in species composition vary with habitat productivity? How does the sign and magnitude of grazing effects on species richness and beta‐diversity change with increasing ... -
Productividad y calidad nutricional de especies forrajeras típicas en mallines de la Patagonia Austral (Argentina) = Productivity and nutritional quality of typical forage species of Austral Patagonian Meadows (Argentina)
(Asociación Argentina de Producción Animal, 2017-12)Se planteó un estudio con el objetivo de evaluar la productividad y la calidad nutricional de las principales especies forrajeras nativas con aptitud de corte en mallines del SO de Santa Cruz. En este contexto, en clausuras ... -
Pastoreo estratégico de ambientes para mejorar la producción ovina en campos del ecotono Bosque-Estepa en Patagonia Sur = Strategic grazing management for better sheep production at the forest-grass steppe ecotone in southern Patagonia
(Asociación Argentina de Producción Animal, 2014-06)El manejo del pastoreo en sistemas ganaderos extensivos con múltiples ambientes se presenta como un desafío dadas las condiciones climáticas y la configuración de los ambientes en los grandes potreros (300-5000 ha) propios ... -
Interacciones ecológicas en bosques de Nothofagus antarctica bajo uso silvopastoril en Patagonia sur continental
(Asociación Española de Ecología Terrestre, 2018-12)Los bosques de ñire (Nothofagus antarctica) en el sur de Patagonia se ubican mayoritariamente limitando con la estepa. De esta manera, han sido utilizados como sistemas silvopastoriles con ganadería ovina y/o bovina desde ... -
El forraje verde hidropónico como una alternativa productiva en Patagonia Sur: productividad y calidad nutricional de dos variedades de cebada (Hordeum vulgare)
(Gerencia de Comunicación e Imagen Institucional, DNA SICC, INTA, 2018-12)La principal actividad agropecuaria de la provincia de Santa Cruz, en el sur de Argentina, es la cría extensiva de ganado ovino. Las inclemencias climáticas de la zona hacen que el alimento escasee en épocas invernales, o ... -
Retention Forestry in Southern Patagonia: Multiple Environmental Impacts and Their Temporal Trends
(Commonwealth Forestry Association, 2015-06)Harvesting with variable retention (VR) applied in Nothofagus forests combines two types of retention: patches of original forest (aggregates) and single isolated homogeneously distributed trees (dispersed). This study ... -
Proposals for Nothofagus antarctica diameter growth estimation: simple vs. global models
(Czech Academy of Agricultural Sciences, 2014)Tree growth is one of the main variables needed for forest management planning. The use of simple models containing traditional equations to describe tree growth is common. However, equations that incorporate different ... -
Linking potential biodiversity and three ecosystem services in silvopastoral managed forest landscapes of Tierra del Fuego, Argentina
(Taylor & Francis, 2017-04)Several studies confirm that biodiversity loss endangers ecosystem services (ES) supply and human well-being. A better understanding of biodiversity–ES relationships and effects of biodiversity loss on ES supply is needed. ... -
State and transition model approach in native forests of Southern Patagonia (Argentina): linking ecosystem services, thresholds and resilience
(Taylor & Francis, 2017-04)The sustainable use of ñire forests requires knowledge of its dynamics and management to maintain long-term main forest ecosystem services. The aim of this work was to develop a structural–functional state and transition ... -
Monitoring drylands: The MARAS system
(Elsevier, 2018-11-09)MARAS (Monitoring of Arid and Semiarid Regions) consists of 379 ground monitors in Patagonia, a 624.500 km2 semiarid area of southern Argentina and Chile. The objective of this paper was to describe the system and analyze ... -
Decomposition and nutrient release of grass and tree fine roots along an environmental gradient in southern Patagonia
(Wiley, 2018-10-25)Decomposition of fine roots is a fundamental ecosystem process that relates to carbon (C) and nutrient cycling in terrestrial ecosystems. However, this important ecosystem process has been hardly studied in Patagonian ... -
Are silvopastoral systems compatible with forest regeneration? An integrative approach in southern Patagonia
(2013-12)We used an integrated approach to analyze the influence of silvopastoral management on the biotic and abiotic factors influencing on the natural recruitment of native forests in Tierra del Fuego (Argentina). The probabilities ... -
Biodiversity potential of Nothofagus forests in Tierra del Fuego (Argentina): tool proposal for regional conservation planning
(2016-09)It is difficult to map and quantify biodiversity at landscape level in areas with low data availability, despite demand from decision-makers. We propose a methodology to determine potential biodiversity pattern using habitat ... -
Potential biodiversity map of lizard species in Southern Patagonia: environmental characterization, desertification influence and analyses of protection areas
(2018)The distribution of biodiversity at the landscape level is shaped by biotic, abiotic and anthropogenic factors. Biodiversity maps provide the basis for defining management and conservation strategies that can minimize human ... -
Why biodiversity increases after variable retention harvesting: A meta-analysis for southern Patagonian forests
(2016-06-01)Effects of forest harvesting on biodiversity can be varied and complex to understand. We provide a meta-analysis of 553 studies plants, insects and birds to identify the general responses to Variable Retention harvesting ... -
Rendimiento de distintos sistemas de aprovechamiento en la corta de protección de un bosque de Nothofagus pumilio = Stocking and yield potential of three different logging systems in a shelterwood cut of Nothofagus pumilio forest
(2017)Los bosques de Nothofagus pumilio constituyen la masa forestal de mayor importancia económica del sur de Argentina y Chile. Las existencias de volumen total y el rendimiento volumétrico varían de acuerdo a la calidad de ...