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Mostrando ítems 1-20 de 28
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A Key Interaction Behind the Scenes: Dung Beetles in Livestock Production from Arid and Semi-Arid Rangelands
(Springer, 2024-02)Pastoralism is a dominant agricultural activity in arid and semi-arid ecosystems. The interaction between coprophagous insects and livestock is a key but an undervalued topic in rangeland management decisions. The objective ... -
Adapting to climate change on desert rangelands: A multi-site comparison of grazing behavior plasticity of heritage and improved beef cattle
(Elsevier, 2023-02)Climate change is amplifying the spatiotemporal heterogeneity of desert rangeland forages through its impact on precipitation variability. Foraging behavior plasticity (an animal's ability to alter its behavior to cope ... -
Agriculturización en la cuenca alta del Río Luján
(Instituto de Investigaciones Geográficas, Universidad Nacional de Luján, 2023-07-27)El presente trabajo centra su análisis en el proceso de agriculturización ocurrido en las últimas décadas en la Pampa Ondulada, entendido de forma sintética como el reemplazo de la actividad ganadera por la actividad ... -
Aridity and overgrazing have convergent effects on ecosystem structure and functioning in Patagonian rangelands
(2018-02)Over 65% of drylands are used for grazing of managed livestock. Understanding what drives grazing effects on the structure and functioning of rangelands is critical for achieving their sustainability. We studied a network ... -
Changes in soil organic matter associated with afforestation affect erosion processes: the case of erodible volcanic soils from Patagonia
(Elsevier, 2021-06-17)Large areas of the Patagonian Andean Region with high potential for planting fast-growing exotic conifers, based on the volcanic nature of its soils, are affected by erosion processes. This study aimed to analyse the effects ... -
Defoliation intensity and simulated grazing strategy effects on three C4 rangeland bunchgrasses
(2018-01)Defoliation intensity and timing are two important factors determining plants response to grazing. These factors can be managed by adjusting stocking rate and applying a grazing strategy. In a 6-yr clipping experiment ... -
Degradation influences equilibrium and non-equilibrium dynamics in rangelands: implications in resilience and stability
(Wiley, 2022-09)Question: Plant communities are structured by both equilibrium and non-equilibrium dynamics, which interact at different spatiotemporal scales. The influence of external factors on internal regulation processes might depend ... -
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 ... -
Effects of dietary supplementation on vegetation cover and its defoliation by sheep in extensive husbandry
(Elsevier, 2022-06-06)Dietary supplementation is one of the most used strategies to reduce the effect of environmental fluctuations in arid and semi-arid environments. We evaluated changes in vegetation and in patterns of animal defoliation as ... -
Effects of High Impact Grazing on Species Diversity and Plant Functional Groups in Grasslands of Northern Argentina
(2018)High impact grazing (HIG) was proposed as a management option to reduce standing dead biomass in Northern Argentinean (Chaco) rangelands. However, the effects of HIG on grassland diversity and shifts in plant functional ... -
Environmental factors regulate soilmicrobial attributes and their response to drought in rangeland ecosystems
(Elsevier, 2023-09)In ecosystems, soil microbial variables characterization are used to determine soil biological health and the response of soils to environmental stress. Although there are strong associations between plants and soil ... -
Estimating overnight weight loss of corralled yearling steers in semiarid rangeland
(2016)A common practice for assessing livestock weight gains from grazing animals on rangelands is to confine animals overnight without feed or water to reduce variation in weight loss and percent shrink. Advances in remote ... -
Forage provision is more affected by droughts in arid and semi-arid than in mesic rangelands
(Wiley, 2022-06)Droughts are projected to increase in magnitude, frequency and duration in the near future. In rangelands, the provision of valuable ecosystem services such as forage supply for livestock productivity is intimately linked ... -
Foraging behavior of Argentine Criollo and Angus cows grazing semi-desert rangelands in the Arid Gran Chaco region of Argentina
(Elsevier, 2022-11)We monitored grazing behavior and habitat selection of Argentine Criollo (AC), South American heritage cattle breed, and Angus (AA) cows during summer and winter of 2016 (wetter year) and 2017 (drier year) at a site in La ... -
Greenhouse gas emissions from beef grazing systems in semi-arid rangelands of central Argentina
(MDPI, 2018-11)The livestock sector can be a major contributor to the mitigation of greenhouse gas (GHG) emissions. Within the sector, beef production produces the largest proportion of the livestock sector’s direct emissions. The objective ... -
Ground and satellite based detection of rangeland management in per humid grasslands of Argentina
(Faculty of Agriculture, Universität zu Bonn, 2007-01)Ranging is the most important single agricultural activity in the department of Empedrado, in the province of Corrientes, Argentina. The present study focuses on three issues (i) the classification of land cover types, ... -
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 ... -
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 ... -
Perspectives on Rangeland Management Education and Research in Argentina
(Society for Range Management, 2011-02)Rangelands account for over two-thirds of Argentina’s land area and contribute uniquely to its biodiversity, agricultural livelihood, and cultural identity. Colossal mountain ranges and regional air mass movements create ... -
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 ...