Journal articles: 'Pampas'

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Popay, I., and S. Timmins. "Pampas grass control with haloxyfop in conservations sites on difficult terrain." New Zealand Plant Protection 54 (August 1, 2001): 56–60. http://dx.doi.org/10.30843/nzpp.2001.54.3726.

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An effective method was sought to control pampas grass (Cortaderia selloana) in conservation sites with difficult terrain At one such site the dunes and dune slack communities on Pouto Peninsula we tested three methods of applying the herbicide haloxyfop from a helicopter beer keg weighted nozzle and lance All three methods gave a similar high level of control of pampas grass but differed considerably in cost One year after herbicide application many of the pampas grass plants in the plots had new shoots and native plant species had begun to colonise the old pampas clumps All sprayed plots needed treatment of the regrowth to completely control the pampas grass

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Messineo, Pablo G., Mariela E. González, María C. Álvarez, and Nélida Pal. "LAS OCUPACIONES HUMANAS EN LA LOCALIDAD ARQUEOLÓGICA LAGUNA DE LOS PAMPAS (CAMPO DE DUNAS DEL CENTRO PAMPEANO, ARGENTINA) DURANTE EL HOLOCENO." Latin American Antiquity 29, no. 4 (September 28, 2018): 736–53. http://dx.doi.org/10.1017/laq.2018.27.

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El objetivo de este trabajo es discutir la relevancia de la localidad arqueológica Laguna de los Pampas en el estudio de las ocupaciones humanas del Campo de Dunas del Centro Pampeano (subregión Pampa Húmeda) durante el Holoceno. Un hallazgo relevante lo constituyen tres huevos de ñandú enteros y semienterrados, con perforaciones que sugieren su utilización como contenedor de líquido. Si bien la laguna fue habitada a lo largo del todo el Holoceno, las dataciones radiocarbónicas del sector excavado ubican a las ocupaciones humanas en el Holoceno medio (entre ca. 7000 y 5800 aP). Para este lapso se determinó que la explotación faunística estuvo orientada al consumo del guanaco, pero con un fuerte complemento de otros taxones como ñandú, venado de las Pampas y especies de menor tamaño. Se registró una tecnología ósea estandarizada sobre huesos de guanaco. Las rocas proceden principalmente del sistema serrano de Tandilia, aunque se identifican materias primas de otras áreas como el oeste pampeano. Las similitudes en las estrategias de producción y usos de los instrumentos con otros sitios de la subregión Pampa Húmeda sugieren el empleo de una misma concepción tecnológica a escala regional durante el Holoceno medio y la interacción con grupos cazadores-recolectores que ocupaban los pastizales pampeanos.

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Gabelli, Fabián M., Gustavo J. Fernández, Valentina Ferretti, Gabriela Posse, Eugenio Coconier, Hernán J. Gavieiro, Paulo E. Llambías, Pablo I. Peláez, María L. Vallés, and Pablo L. Tubaro. "Range contraction in the pampas meadowlark Sturnella defilippii in the southern pampas grasslands of Argentina." Oryx 38, no. 2 (April 2004): 164–70. http://dx.doi.org/10.1017/s0030605304000304.

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The Vulnerable Pampas meadowlark Sturnella defilippii (Family Icteridae) is a Neotropical grassland bird that suffered a severe population reduction and range contraction during the 20th century. Formerly distributed across most of the pampas grasslands, it is now confined to the southern tip of its original range. There are small groups of wintering birds in southern Brazil, a small reproductive population in eastern Uruguay, and the main reproductive population occurs on the southern pampas grasslands of Argentina. In this paper we report the results of an extensive field survey of these southern pampas grasslands, carried out to estimate the pampas meadowlark's population size and to identify the factors potentially responsible for its range contraction. During the 1999 breeding season we surveyed a total of 296 sample locations (transects, randomly selected points, and sites checked for nesting site reoccupation). We found 66 reproductive groups of pampas meadowlarks. The minimum population size and extent of occurrence were estimated to be 28,000 individuals and 4,810 km2, respectively. This value represents a range contraction of c. 30% compared to that estimated in a study carried out between 1992 and 1996. Pampas meadowlarks reoccupied natural grassland sites for nesting that were used in previous breeding seasons when these sites remained undisturbed. Habitat transformation appears to be the main factor causing the range contraction of the pampas meadowlark. We suggest that long-term monitoring of this population and its preferred habitat, the natural grasslands, is required in order to ensure the conservation of this species.

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Davenhill, N. A. "Herbicides for pampas control." Proceedings of the New Zealand Weed and Pest Control Conference 41 (January 8, 1988): 156–59. http://dx.doi.org/10.30843/nzpp.1988.41.9884.

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Palacio, Juan Manuel R., and Waldo Ansaldi. "¿Revolucion en las pampas?" Desarrollo Económico 35, no. 140 (January 1996): 677. http://dx.doi.org/10.2307/3467379.

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Uriguen, Inazio. "Pampas grass, free town." Open Schools Journal for Open Science 1, no. 3 (May 20, 2019): 25. http://dx.doi.org/10.12681/osj.20283.

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How can we turn an invaded space into a free space? Our project focused on investigating the areas of Loiu (the town where our school is located) where the invasive species of Pampas Grass, Cortadería Selloana, grow. Following the initial investigation we indicated on a paper map where these species can be found. In order to do this, we learned how to use maps, scales, locate our position, and locate the species in the mountains. Later, we investigated how to eradicate them. For this purpose, we studied the previous studies carried out by the University of the Basque Country and the work carried out by the Provincial Council of Bizkaia, eradicating the species in some specific areas of the province. Finally, we presented a dossier in the town hall. Then, the consistory informed the neighbours about how they should deal with this species, and a treatment in public areas has been undertaken. The work of our students promoted a campaign that will benefit our village.

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Rieth, Flávia Maria Silva, Daniel Vaz Lima, and Marilia Floor Kosby. "THE WAY OF LIFE OF THE BRAZILIAN PAMPAS: AN ETHNOGRAPHY OF THE CAMPOEIROS AND THEIR ANIMALS." Vibrant: Virtual Brazilian Anthropology 13, no. 2 (December 2016): 110–27. http://dx.doi.org/10.1590/1809-43412016v13n2p110.

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Abstract In line with the preservation policy on ethnic and cultural diversity of Brazil, the survey of the National Inventory of Cultural References (INRC) - Lidas Campeiras in the Bagé Region sought to inventory the livestock in the Brazilian pampa as a cultural reference. The experience of the research focused on the relationship of culture and nature, specifically the relationship between humans and animals, considered by the dwellers of the Pampa to influence directly the way of life that they lead. The campeiro (pampas person) way of life cannot be conceived without taking into account the oxen, horses and dogs. The paper also the notion of patrimony, taking into account aspects of relatedness, materiality and resonance (Gonçalves 2004).

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Aliaga, V. S., F. Ferrelli, E. D. Alberdi-Algarañaz, V. Y. Bohn, and M. C. Piccolo. "Distribución y variabilidad de la precipitación en la Región Pampeana, Argentina." Cuadernos de Investigación Geográfica 42, no. 1 (June 27, 2016): 261. http://dx.doi.org/10.18172/cig.2867.

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Pampas region is the main agricultural area of Argentina. Its economy mainly depends on rainfall regimes. The aim of this study was to sub-regionalize the Pampas, considering the spatial and temporal distribution of rainfalls. Cluster analysis was applied to study precipitation data from 33 meteorological stations from National Weather Service (SMN, Argentina) during the period 1960-2010. As a result, 6 sub-regions were obtained. Extreme precipitation events were studied with the Standardized Precipitation Index (SPI) and Continuous Wavelet Transform (CWT). Rainfalls respond to annual and seasonal timescales. Four of the sub-regions presented rainfalls homogeneity, permitting to redefine the limits of the Pampas region proposed by Labraga et al. (2011). Thus, a new pluviometric regionalization was achieved considering the typical precipitation patterns of Pampas region.

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Nanni, Ana Sofía, Lucila Castro, Griet An Erica Cuyckens, Fernando R. Barri, Anthony J. Giordano, and Mauro Lucherini. "New Pampas cat Leopardus colocolo (Molina, 1782) (Mammalia: Carnivora: Felidae) records for the Chaco ecoregion raise questions on the distribution and population status of this felid in Argentina." Check List 16, no. 3 (June 16, 2020): 729–35. http://dx.doi.org/10.15560/16.3.729.

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The Pampas cat is a poorly-known small felid distributed throughout a large portion of South America, reported as extinct in the Pampas of Argentina, and absent from a large portion of the Argentine Dry Chaco. Here, we compile data from the field and collections to report new presence records of the Pampas cat from the Dry Chaco of Argentina, which update to the distribution of this felid in the region. We discuss the need of further assessments for the species distribution in the light of ongoing land-use changes in the area.

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Pedrotta, Victoria. "Tras las huellas de los jesuitas en las pampas argentinas. La reducción “Nuestra Señora de la Purísima Concepción de los Indios Pampas” (1740-1753)." Trabajos y comunicaciones, no. 45 (April 12, 2017): 030. http://dx.doi.org/10.24215/tyce030.

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En mayo de 1740 los jesuitas Querini y Strobel fundaron la reducción “Nuestra Señora de la Purísima Concepción de los Indios Pampas”, en la desembocadura del río Salado, en la pampa argentina, iniciando así un ambicioso proyecto evangelizador destinado los grupos indígenas pampeano-patagónicos. A los pocos años, dicha reducción tuvo que trasladarse a un paraje cercano, donde se estableció hasta 1753. En este trabajo se presentan los resultados del análisis de la base documental recabada en el marco de las investigaciones arqueológicas que comenzamos en 1998, centrado en aspectos referidos al entorno geográfico de la reducción, su núcleo de población inicial, edificaciones y trazado, a la vez que se discute la información acerca de la localización actual de los dos asentamientos que consecutivamente la conformaron.

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Aimi, Daniele Morgenstern, Débora Regina Roberti, Silvana Maldaner, Gervásio Annes Degrazia, Marcelo Diaz, Edyson Waghetti Sebastiany, and Gisele Cristina Rubert. "CALIBRAÇÃO DE EQUAÇÕES CLÁSSICAS PARA RADIAÇÃO DE ONDA LONGA NA REGIÃO DE PAMPA EM DIAS DE CÉU CLARO." Ciência e Natura 38 (July 20, 2016): 367. http://dx.doi.org/10.5902/2179460x20268.

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The atmospheric longwave radiation is a fundamental quantity in calculating the radiation balance at the surface. Measures of this magnitude in the gaucho Pampas region are scarce. An alternative estimate for this variable is the use of classical equations that use air temperatures and steam pressure. The objective of this study was to evaluate the performance of five equations in the estimation of the long atmospheric wave radiation for a clear day on a Pampa biome located in Santa Maria-RS. Atmospheric longwave radiation measurements taken throughout the year 2014 on the site of Santa Maria / Brazil were used to validate the performance of equations. After the radiation estimates by classical equations, an adjustment by least squares was empegando to calibrate such equations to the biome Pampa. By adjusting it noted that the equation Brutsaert (1975) was best described obsevada long wave radiation in the PAMPA region.

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Müller, G. V., T. Ambrizzi, and S. E. Ferraz. "The role of the observed tropical convection in the generation of frost events in the southern cone of South America." Annales Geophysicae 26, no. 6 (June 11, 2008): 1379–90. http://dx.doi.org/10.5194/angeo-26-1379-2008.

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Abstract. Based on previous results obtained from observations and linear wave theory analysis, the hypothesis that large-scale patterns can generate extreme cold events in southeast South America through the propagation of remotely excited Rossby waves was already suggested. This work will confirm these findings and extend their analysis through a series of numerical experiments using a primitive equation model where waves are excited by a thermal forcing situated in positions chosen according to observed convection anomalies over the equatorial region. The basic state used for these experiments is a composite of austral winters with maximum and minimum frequency of occurrence of generalized frosts that can affect a large area known as the Wet Pampas located in the central and eastern part of Argentina. The results suggest that stationary Rossby waves may be one important mechanism linking anomalous tropical convection with the extreme cold events in the Wet Pampas. The combination of tropical convection and a specific basic state can generate the right environment to guide the Rossby waves trigged by the tropical forcing towards South America. Depending on the phase of the waves entering the South American continent, they can favour the advection of anomalous wind at low levels from the south carrying cold and dry air over the whole southern extreme of the continent, producing a generalized frost in the Wet Pampa region. On the other hand, when a basic state based on the composites of minimum frosts is used, an anomalous anticyclone over the southern part of the continent generates a circulation with a south-southeast wind which brings maritime air and therefore humidity over the Wet Pampas region, creating negative temperature anomalies only over the northeastern part of the region. Under these conditions even if frosts occur they would not be generalized, as observed for the other basic state with maximum frequency of occurrence of generalized frosts.

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Scioscia, Nathalia Paula, Yanina Paola Hecker, David Arranz-Solís, Julieta Pedrana, Facundo Nahuel Urtizbiria, Lucía María Campero, Leandro Olmos, et al. "Pampas fox (Lycalopex gymnocercus) of the Argentine Pampas as intermediate host for Neospora caninum." Parasitology International 88 (June 2022): 102549. http://dx.doi.org/10.1016/j.parint.2022.102549.

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Fernández, Gustavo J., Gabriela Posse, Valentina Ferretti, and Fabián M. Gabelli. "Bird–habitat relationship for the declining Pampas meadowlark populations in the southern Pampas grasslands." Biological Conservation 115, no. 1 (January 2004): 139–48. http://dx.doi.org/10.1016/s0006-3207(03)00103-4.

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Huaranca, Juan Carlos, Ma Lilian Villalba, Nuno Negrões, Jaime E. Jiménez, David W. Macdonald, and Luis F. Pacheco. "Density and activity patterns of Andean cat and pampas cat (Leopardus jacobita and L. colocolo) in the Bolivian Altiplano." Wildlife Research 47, no. 1 (2020): 68. http://dx.doi.org/10.1071/wr19053.

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Abstract ContextUnderstanding the factors that determine the distribution and abundance of species is an important aim of ecology and prerequisite for conservation. The Andean cat (Leopardus jacobita) and the pampas cat (L. colocolo) are two of the least studied felids. Both are threatened, of similar size and live sympatrically in the Andes of Argentina, Bolivia, Chile, and Perú. AimsWe aimed at estimating the population densities of the Andean cat and pampas cat in two continuous areas and to analyse the activity patterns of these two species and that of mountain vizcacha (Lagidium viscacia), the main prey of the Andean cat. MethodsWe used camera traps to evaluate the density of both felid species using the space explicit capture recapture (SECR) framework and the overlap in their activity patterns with that of mountain vizcacha, using the kernel-density estimator in two contiguous areas in the Bolivian Altiplano, at Muro-Amaya and at Micani, both within the Ciudad de Piedra region. Key resultsAndean cat density was estimated at 6.45 individuals per 100km2 in Muro-Amaya and 6.91 individuals per 100km2 in Micani, whereas the density of the pampas cat was 5.31 individuals per 100km2 and 8.99 individuals per 100km2 respectively. The Andean cat was mainly nocturnal, whereas the pampas cat was cathemeral. The activity of the mountain vizcacha overlapped less with that of its specialised predator, the Andean cat, than with that of the pampas cat. ConclusionsIn line with our predictions, the Andean cat, considered a more specialised nocturnal hunter, particularly of mountain vizcacha, had lower population densities than did the more generalist pampas cat. ImplicationsLow population densities, as compared with theoretical expectations, pose an additional conservation problem for these felids, in an area such as the high Andes.

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Martínez-Lanfranco, Juan Andrés, and Enrique M. González. "The oldest available name for the pampas cat of the Uruguayan Savannah ecoregion is Leopardus fasciatus (Larrañaga 1923)." Therya 13, no. 3 (September 30, 2022): 259–64. http://dx.doi.org/10.12933/therya-22-1187.

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Based on a revision of historical and taxonomic accounts, we showed that Felis fasciatus Larrañaga, 1923, represents the oldest available Linnean name referable to the pampas cat endemic to the Uruguayan Savannah ecoregion, currently regarded as Leopardus munoai (Ximénez 1961). To anchor the name Felis fasciatus to Uruguayan specimens, we designated a neotype for this taxon with terra typica in Estancia San Cristóbal, Arroyo Limetas, Conchillas, Department of Colonia, Uruguay. Since Larrañaga's fasciatus represents a senior synonym of L. munoai, it takes precedence and, in compliance with the International Code of Zoological Nomenclature, it must therefore be used to refer to the "Uruguayan" pampas cat, L. fasciatus (Larrañaga 1923), for which we suggested the vernacular name "Larrañaga’s pampas cat".

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De Jong, Ingrid. "Prácticas de la Diplomacia Fronteriza en las Pampas, Siglo XIX." Habitus 14, no. 2 (February 7, 2017): 175. http://dx.doi.org/10.18224/hab.v14.2.2016.175-197.

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Resumo: até finais da década de 1870, as elites políticas governantes da Argentina iniciavam a ocupação militar do Pampa e da Patagônia, concretizando assim o projeto de incorporar os territórios indígenas à produção agropecuária extensiva. Com isso se poderia por fim à diplomacia fronteiriça - um espaço de relações entre indígenas e crioulos que havia se desenvolvido junto às relações militares e comerciais por mais de um século. Neste trabalho nos interessa reconstruir as instituições diplomáticas na Fronteira Sul durante as décadas centrais do século XIX, a partir de uma abordagem que busca contextualizar estas práticas de longa duração das fronteiras coloniais e, em seguida, republicanas. Isso não somente nos permite reconstruir uma dimensão pouco conhecida das políticas estatais, sem perguntarmos pelo agenciamento indígena, suas estratégias e expectativas em relação ao Estado durante a última etapa de existência da fronteira. Palavras-chave: Fronteiras. Diplomacia. Pampas. Indígenas. Estado Nação.

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Politis, Gustavo G., Pablo G. Messineo, Thomas W. Stafford, and Emily L. Lindsey. "Campo Laborde: A Late Pleistocene giant ground sloth kill and butchering site in the Pampas." Science Advances 5, no. 3 (March 2019): eaau4546. http://dx.doi.org/10.1126/sciadv.aau4546.

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The extinction of Pleistocene megafauna and the role played by humans have been subjects of constant debate in American archeology. Previous evidence from the Pampas region of Argentina suggested that this environment might have provided a refugium for the Holocene survival of several megamammals. However, recent excavations and more advanced accelerator mass spectrometry radiocarbon dating at Campo Laborde site in the Argentinian Pampas challenge the Holocene survival of Pleistocene megamammals and provide original and high-quality information documenting direct human impact on the Pleistocene fauna. The new data offer definitive evidence for hunting and butchering of Megatherium americanum (giant ground sloth) at 12,600 cal years BP and dispute previous interpretations that Pleistocene megamammals survived into the Holocene in the Pampas.

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Rocha, Daniel G., Alexandre Vogliotti, Diogo M. Gräbin, Wilhan R. C. Assunção, Bruno Contursi Cambraia, Ana Rafaela D'Amico, Antonio Elson Portela, and Rahel Sollmann. "New populations of pampas deer Ozotoceros bezoarticus discovered in threatened Amazonian savannah enclaves." Oryx 53, no. 4 (August 13, 2019): 748–51. http://dx.doi.org/10.1017/s0030605318001539.

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AbstractThe savannah enclaves (i.e. patches) in the southern Brazilian Amazonia are among the most threatened and poorly surveyed sites in Amazonia. As part of an extensive mammal survey, we set camera traps in three of these savannah enclaves. We obtained 23 independent records of pampas deer Ozotoceros bezoarticus, a medium sized Neotropical cervid that is strongly associated with open habitats and categorized as Vulnerable on the Brazilian Red List of threatened species. These savannah enclaves with confirmed populations of pampas deer lie outside the species’ previously presumed historical range and are at least 350 km from any known extant population. Together, these savannah enclaves add c. 4,000 km2 to the pampas deer's currently known range. The small pampas deer populations in these enclaves are probably isolated by a matrix of Amazon forest, raising questions about spatial genetic structure and meta-population dynamics, and making them vulnerable to local extinction. We highlight the need for further studies, particularly genetic, to assess the conservation status of these populations, the results of which could potentially inform management decisions in other areas of the heavily fragmented range of this species.

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Cosse, Mariana, Susana González, and Mariano Gimenez-Dixon. "Feeding ecology of Ozotoceros bezoarticus: conservation implicationsin Uruguay." Iheringia. Série Zoologia 99, no. 2 (June 2009): 158–64. http://dx.doi.org/10.1590/s0073-47212009000200007.

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The pampas deer (Ozotoceros bezoarticus Linnaeus, 1758) was in the recent past one of the most characteristic species in the Uruguayan grasslands. However, today the species is very rare, with small relict populations inhabiting in few ranches. To improve our understanding of pampas deer habitat use in modified ecosystems and propose management guidelines we analyzed the pampas deer feeding ecology at Los Ajos ranch. We performed an annual vegetation survey with the purpose to identify the main components of pampas's deer diet and the spatial overlap with livestock. Vegetation offer was characterized by predominance of monocotyledon plants; in three of the four sample periods. The preference values for the crops were positive for ryegrass in winter (0.24) and spring (0.54), the moments of greatest productivity of this pasture; while the rice crops values were negative all year round. The spatial overlap indexes with sheep show a complete exclusion, whereas with cattle the indexes gave values of 0.95 in spring to 0.14 in summer. The niche amplitude was significantly correlated with the spatial overlap levels with cattle. Pampas deer foraging behaviour is opportunistic, typical of mixed feeders. Conservation efforts should focus on implementation of management guidelines of agriculture and cattle breeding activities.

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Mota, Raquel Alves. "Pampas argentinos: a percepção da monotonia." Cadernos Benjaminianos, no. 6 (December 31, 2012): 86. http://dx.doi.org/10.17851/2179-8478.0.6.86-95.

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No percurso da caravana do Dr. Real pelos pampas argentinos, em Las Nubes (2000), o médico narrador busca retratar o espaço em que deambula. A fugidia realidade que acompanha as personagens enfatiza a discussão promovida por Saer, nos seus escritos teóricos, a respeito, da possibilidade de apreensão da realidade ou da delimitação dos lugares do real e da ficção.

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Harper, Marjory. "Stewart, From Caledonia to the Pampas." Scottish Historical Review 82, no. 1 (April 2003): 160–61. http://dx.doi.org/10.3366/shr.2003.82.1.160.

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Viglizzo, E. "Agroecosystems stability in the argentine pampas." Agriculture, Ecosystems & Environment 16, no. 1 (May 1986): 1–12. http://dx.doi.org/10.1016/0167-8809(86)90071-x.

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García-Olaechea, Alvaro, and Cindy M. Hurtado. "Assessment of the current distribution and human perceptions of the Pampas cat Leopardus colocolo in northern Peru and southern Ecuador." Oryx 52, no. 3 (December 11, 2017): 587–90. http://dx.doi.org/10.1017/s003060531700151x.

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AbstractThe Pampas cat Leopardus colocolo occurs in a variety of habitats from northern Ecuador to southern Argentina, yet the species has been poorly studied. There is scant information about its northern distribution or about populations in desert and dry forest. We aimed to determine the presence of the Pampas cat in the Sechura Desert and seasonally dry forest of north-western Peru and south-western Ecuador, identify threats to the species, and describe people's perceptions of it. Using 32 camera traps and compiling confirmed and unpublished records, we mapped the species’ distribution and identified 12 new localities, three in the Sechura Desert and nine in the dry forest. The first records of the Pampas cat in the Ecuadorian dry forest are reported from La Ceiba Natural Reserve and Jorupe Reserve; the northernmost record in the dry forest is from Cerros de Amotape National Park, Peru. In 56 semi-structured interviews with local people we found that most of them (76.8%) did not know the species; 61.5% of those who knew the species had a neutral perception and did not think the cat affected their personal activities. Here we update the northern distribution of the Pampas cat, describe threats to the species in arid ecosystems, and highlight the need for further studies to identify other possible threats and mitigation methods.

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Amaral, Samuel. "Rural Production and Labour in Late Colonial Buenos Aires." Journal of Latin American Studies 19, no. 2 (November 1987): 235–78. http://dx.doi.org/10.1017/s0022216x00020071.

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The Old World had known of the fabulous riches of Mexican and Peruvian mines for well over a century when reports began to come in of the wealth of the Buenos Aires pampas. Acarete du Biscay and Antonio de Ulloa were among those astounded by the abundant herds of wild cattle to be found on those endless plains and the latter's writings provided Adam Smith with examples of a primitive economy.1 By the time The Wealth of Nations was published, however, that early primitiveness was changing. According to Cosme Bueno, the increasing demand for hides for export had brought about a decline in the number of cattle around Buenos Aires with the result that simple hunting had become cattle raising.2 The supply of meat to the city had always necessitated cattle raising, but the ever-erratic demand for export hides had to be met by hunting expeditions - the vaquerías. No new hunting licences were granted after 1720 and the first surprise attacks a few years later by Pampa indians looking for domestic cattle signalled the end of the wild herds.3 The intensification of foreign demand for hides led in the first place to the spread of the vaquerías into Entre Ríos and the Banda Oriental and, later on, particularly after the adoption of free-trade policies by post-revolutionary governments, to the proliferation of estancias on the Buenos Aires pampas.

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Silva, Marcelo Dutra da. "OS CULTIVOS FLORESTAIS DO PAMPA, NO SUL DO RIO GRANDE DO SUL: DESAFIOS, PERDAS E PERSPECTIVAS FRENTE AO AVANÇO DE NOVAS FRONTEIRAS AGRÍCOLAS." FLORESTA 42, no. 1 (March 28, 2012): 215. http://dx.doi.org/10.5380/rf.v42i1.26319.

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O avanço da silvicultura sobre o ambiente campestre vem transformando a região dos Pampas. Os plantios florestais nesta região, que na atualidade ocupam uma área de um milhão de hectares, tiveram início na década de 1980 no Uruguai, e se expandiram para a Argentina e, logo depois, para o Brasil. A partir do crescimento da área plantada, esses países começaram a competir para atrair corporações mundiais da indústria de celulose, transformando a região dos Pampas em um novo centro de alta produtividade florestal.

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Otarola Torres, Gabriela Ruth, Susana Salomon Macha, and Rosario Eleana Cuadros Rios. "Grado de cumplimiento de la guía de fototerapia en el neonato con ictericia en enfermeras del Servicio de Neonatologia del Hospital de Pampas - Huancavelica 2019." Visionarios en ciencia y tecnología 5, no. 2 (August 10, 2020): 62–70. http://dx.doi.org/10.47186/visct.v5i2.32.

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Objetivo: Identificar el grado cumplimiento de la guía de fototerapia en el neonato con ictericia en enfermeras del servicio de neonatología Hospital de Pampas - Huancavelica 2019. Material y métodos: La variable de estudio fue el grado de cumplimiento de la guía de fototerapia en el neonato con ictericia, con sus cinco dimensiones; termorregulación, higiene y confort, alimentación, seguridad y apego.La metodología empleada fue descriptiva, utilizándose el diseño no experimental tipo descriptivo simple y de forma transversal. Se consideró como área de estudio; 15 enfermeras del servicio de neonatología del Hospital de Pampas, el muestreo fue no probabilístico de tipo intencional.El método utilizado fue científico y descriptivo, el instrumento fue guía de observación Resultados: El 74% de las enfermeras observadas, si cumplen con la guía de fototerapia en el neonato con ictericia del servicio de neonatología. Conclusiónes: Se identificó que el grado cumplimiento de la guía de fototerapia en el neonato con ictericia en enfermeras del servicio de neonatología Hospital de Pampas - Huancavelica 2019.

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Martínez, Gustavo, and María A. Gutiérrez. "Early Holocene water well in the Pampas of Argentina: Human responses to water shortage events." Holocene 29, no. 1 (October 24, 2018): 145–57. http://dx.doi.org/10.1177/0959683618804643.

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Water wells are ethnographically and archaeologically described in Australia and the plains of North America. Recently, a prehistoric water well from the early Holocene was recorded in the Pampas of Argentina. The aim of this paper is to present the main characteristics of the water well, considering its form, dimension, sediment analyses (texture and chemical parameters), and material culture content. This is the first water well recorded in the Pampas of Argentina. Consequently, a discussion about natural or cultural origins of this kind of features is provided. An evaluation of similarities and differences with well-described water wells from the United States and Australia is included in order to highlight the cultural origin of the pit. Also, the meaning of the cultural response to water availability in terms of early-Holocene hunter–gatherer adaptations as well as the implications of this strategy for understanding paleoenvironmental scenarios of the Pampas of Argentina are discussed. The well seems to have mitigated an exceptional lack of surface water in the eastern Pampas or offered an alternative for the non-drinkable quality of the available surface water. The strategy of digging water wells was available in the behavioral repertoire of the Pampean hunter–gatherer populations as early as c. 8700–8000 14C yr BP ( c. 9700–8800 cal. yr BP), as these groups were fairly flexible and resilient in dealing with short-term shortages of water.

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Cosentino, Nicolás J., Diego M. Gaiero, Gabriela Torre, Andrea I. Pasquini, Renata Coppo, Juan M. Arce, and Georgina Vélez. "Atmospheric dust dynamics in southern South America: A 14-year modern dust record in the loessic Pampean region." Holocene 30, no. 4 (September 18, 2019): 575–88. http://dx.doi.org/10.1177/0959683619875198.

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Mineral aerosols profoundly impact global climate. Modeling of the dust cycle is the main tool used to gauge this effect. However, the scarcity of in situ modern dust flux measurements is the main reason why validation of existing models is hampered. We present the first long-term (14-year) record of dust flux in the Pampas, southern South America, home to the largest loess deposit in the Southern Hemisphere. Measured 14-year mean deposition (40 g m−2 year−1) and horizontal (362 g m−2 year−1) fluxes imply that current models underestimate the power of the central Pampas as a dust sink. Based on cross-spectral analysis, both wet and, to a lesser extent, dry deposition are found to play significant roles in atmospheric dust extraction. Dust is sourced regionally from the South American Arid Diagonal and from the shores of Mar Chiquita lake (~260 km), which we find to be the main contributor of dust particles >30 µm. Cross-spectral and satellite image analyses show that surface wind speed and precipitation at the Puna-Altiplano Plateau are controlling factors for horizontal dust flux in the Pampas. El Niño Southern Oscillation probably plays a role in controlling interannual horizontal dust flux periodicities. Finally, preliminary comparisons between modern vertical dust fluxes and loess accumulation rates point to the Pampas as a more powerful dust sink during the last deglaciation and Antarctic Cold Reversal (18–12.5 ka).

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Zamboni, Talía, Alicia Delgado, Ignacio Jiménez-Pérez, and Carlos De Angelo. "How many are there? Multiple-covariate distance sampling for monitoring pampas deer in Corrientes, Argentina." Wildlife Research 42, no. 4 (2015): 291. http://dx.doi.org/10.1071/wr14222.

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Context The pampas deer (Ozotoceros bezoarticus) is an endangered species in Argentina. Scarce information exists about one of the four last populations that survive in Corrientes province, where direct counts estimated a population of <500 individuals. Aims To evaluate the status of the pampas deer population in Corrientes by applying a standardised methodology and to develop methodological recommendations for future deer monitoring. Methods We conducted six population censuses between 2007 and 2010, using line transects placed on roads throughout 1200 km2 of grasslands in the Aguapey region, Corrientes, Argentina. From a moving vehicle, we counted every pampas deer group observed along transects. We used Distance 6.0 and its multiple-covariate distance sampling engine to estimate deer density, while exploring the potential effect of roads, habitat type, hour, season, observer experience and survey effort on deer occurrence and density estimation. Key results The occurrence of pampas deer was irrespective of transect location (minor or major road) but a greater number of animals was detected over transects in minor roads and in areas covered by grasslands with young pine plantations. We estimated a density of 1.17 individuals km–2 (s.e. = 0.52), and habitat type was the most important covariate for density estimation. We estimated a total population of 1495 deer (95% CI = 951–2351, CV = 23.27%) for the Aguapey region in Argentina. Conclusions Corrientes hosts one of the largest populations of pampas deer in Argentina, with ~1000 individuals. The fact that we estimated a larger population than did previous studies could be explained either by actual population growth during the past 10 years, or by the use of more exhaustive and sophisticated sampling design and data analysis. Implications Population surveys using covariate distance sampling on ground line transects can provide more realistic population estimates than do other simpler methods. Our population estimates and methods can be used as a baseline for future monitoring of this population, as long as factors such as sampling effort, type of roads for locating transects, and habitat type are considered in future analysis.

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Gullo Rodríguez, Salvatore. "DESARROLLO DE LAS HABILIDADES SOCIALES EN NIÑOS Y NIÑAS DE LA COMUNIDAD PAMPA BLANCA, PAMPAS –TAYACAJA – HUANCAVELICA." Prohominum 4, no. 1 (March 19, 2022): 9–37. http://dx.doi.org/10.47606/acven/ph0092.

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Las habilidades sociales de un individuo comprenden un conjunto de destrezas y capacidades diversas y específicas; que conllevan a unas relaciones interpersonales y socioemocionales saludables y armónicas a lo largo de su vida, encaminándolo de esa manera a una buena convivencia y su desempeño en la sociedad. El estudio tuvo como fin determinar el desarrollo de las habilidades sociales en los niños y niñas de la comunidad Pampa Blanca-Pampas-Tayacaja-Huancavelica. La metodología empleada se basó en el enfoque cuantitativo, siendo un proyecto factible no experimental con un nivel descriptivo. La muestra estuvo integrada por 48 infantes, con una distribución demográfica de 22 niños y 26 niñas entre 10 y 12 años, de una población de 126 niños aproximadamente. La técnica de recolección de datos fue la encuesta y su instrumento el cuestionario. Los resultados determinaron que la muestra alcanza niveles moderados y altos en las dimensiones seleccionadas para el estudio. Concluyendo, la necesidad de reforzar conductas positivas y fomentar actividades que favorezcan las buenas relaciones en los niños, niñas y adolescentes. ABSTRACTAn individual's social skills comprise a set of skills and diverse and specific capacities; that lead to relationships healthy and harmonious interpersonal and socio-emotional relationships throughout their life, directing it in this way to a good coexistence and its performance in society. The purpose of the study was to determine the development of the social skills in the boys and girls of the Pampa Blanca community Pampas-Tayacaja-Huancavelica. The methodology used was based on the quantitative approach, being a feasible non-experimental project with a descriptive. The sample consisted of 48 infants, with a distribution demographic of 22 boys and 26 girls between 10 and 12 years old, from a population of 126 children approximately. The data collection technique was survey and its instrument the questionnaire. The results determined that the sample reaches moderate and high levels in the selected dimensions for the study. In conclusion, the need to reinforce positive behaviors and promote activities that promote good relationships in children and teenagers.

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Martel-Zevallos, David J., Niker J. Salinas-Alejandro, Rocío V. Rasmuzzen-Santamaría, and Sarita Maylle-Montalvo. "Propuesta de valor y el impacto del turismo: Un estudio en el centro poblado Las Pampas de Tomayquichua- Huánuco, Perú." Investigación Valdizana 13, no. 3 (July 25, 2019): 128–34. http://dx.doi.org/10.33554/riv.13.3.341.

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El objetivo de la investigación demostró cómo la propuesta de valor se relaciona con el impacto del turismo en el centro poblado Las Pampas de Tomayquichua, con base en una investigación aplicada, con un enfoque cuantitativo, de alcance descriptivo-correlacional-explicativo, y de tipo experimental. Para la aplicación del cuestionario a la población se tomó una muestra aleatoria simple de tipo probabilística obteniendo 295 y para el grupo experimental se tomó una submuestra aleatoria simple de tipo no probabilística intencional legando a 15 pobladores. De los resultados obtuvimos que el 38.64% manifestó que el motivo de visita a Las Pampas sería por sus zonas turísticas, seguido de un 34.92% que indican que es por sus capillas, mientras que el 22.37% dijo por el clima saludable, y solo un 4.07% indicaron que es por los recreos y esparcimiento. Concluyendo que la propuesta de valor se relaciona con el impacto del turismo en el centro poblado Las Pampas de Tomayquichua con una correlación de 0.70665582, por lo que es una relación positiva ya que se acerca al valor de 1.

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Rubione, Claudio, and Sarah M. Ward. "A New Approach to Weed Management to Mitigate Herbicide Resistance in Argentina." Weed Science 64, SP1 (September 2016): 641–48. http://dx.doi.org/10.1614/ws-d-16-00016.1.

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The evolution of herbicide-resistant weeds is a major concern in the corn- and soybean-producing Pampas region of Argentina, where growers predominantly plant glyphosate-resistant crop varieties and depend heavily on glyphosate for weed control. Currently, 16 weed species in Argentina are resistant to one or more of three different herbicide mechanisms of action, and resistant weed populations continue to increase, posing a serious threat to agricultural production. Implementation of integrated weed management to address herbicide resistance faces significant barriers in Argentina, especially current land ownership and rental patterns in the Pampas. More than 60% of Pampas cropland is rented to tenants for periods that rarely exceed 1 yr, resulting in crop rotation being largely abandoned, and crop export taxes and quotas have further discouraged wheat and corn production in favor of continuous soybean production. In this paper we discuss ways to facilitate new approaches to weed management in Argentina, including legal and economic reforms and the formation of a national committee of stakeholders from public and private agricultural sectors.

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Carranza Orbegoso, Jorge. "RELECTURA DE FUENTES PRIMARIAS PARA LA DOCUMENTACIÓN DE GEOGLIFOS EN EL VALLE BAJO DEL RÍO CHILLÓN, COSTA CENTRAL DEL PERÚ." Arqueología y Sociedad, no. 22 (December 31, 2010): 177–92. http://dx.doi.org/10.15381/arqueolsoc.2010n22.e12298.

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Recientes investigaciones han evidenciado la presencia de geoglifos en pampas y quebradas que rodean las cuencas inferiores de los valles de la costa central del Perú. El propósito de este documento es evaluar la información reunida hasta el momento y añadir nuevos datos sobre tres sitios arqueológicos con presencia de geoglifos, ubicados en la margen izquierda del valle bajo del río Chillón, inexistentes en la actualidad, destruidos por el avance urbano de la ciudad capital, localizados mediante la revisión de antiguas fotografías aéreas y la cartografía histórica existente del área. Se describen los geoglifos en relación a sitios arqueológicos y rutas que conectan el valle bajo del río Chillón y Pampa Canto Grande, lugar donde se ha ubicado uno de los mayores centros de Arte Rupestre de la zona.

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Dowd, Shannon. "Interregnum and Pharmacology: Hernán Ronsino's Pampas Trilogy." Revista Hispánica Moderna 74, no. 2 (2021): 169–83. http://dx.doi.org/10.1353/rhm.2021.0019.

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Usunoff, Eduardo J. "Hydrogeological problems of Argentina’s pampas: Editor’s message." Hydrogeology Journal 4, no. 3 (March 1996): 2. http://dx.doi.org/10.1007/s10040-996-0003-x.

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Monzon, J. P., J. L. Mercau, J. F. Andrade, O. P. Caviglia, A. G. Cerrudo, A. G. Cirilo, C. R. C. Vega, F. H. Andrade, and P. A. Calviño. "Maize–soybean intensification alternatives for the Pampas." Field Crops Research 162 (June 2014): 48–59. http://dx.doi.org/10.1016/j.fcr.2014.03.012.

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Džakula, Željko. "Phase Angle Measurement from Peak Areas (PAMPAS)." Journal of Magnetic Resonance 146, no. 1 (September 2000): 20–32. http://dx.doi.org/10.1006/jmre.2000.2123.

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Aliaga, Vanina S., Federico Ferrelli, and María Cintia Piccolo. "Regionalization of climate over the Argentine Pampas." International Journal of Climatology 37 (April 12, 2017): 1237–47. http://dx.doi.org/10.1002/joc.5079.

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Aliaga, V. S., F. Ferrelli, V. Y. Bohn, and M. C. Piccolo. "Utilización de imágenes satelitales para comprender la dinámica lagunar en la Región Pampeana." Revista de Teledetección, no. 46 (June 27, 2016): 133. http://dx.doi.org/10.4995/raet.2016.5196.

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<p>The aim of this study was to analyze satellite images of different spatial resolutions to interpret the morphometric behavior of six shallow lakes of the Pampas, Argentina. These are characterized by having different rainfall regimes. Morphometric response considering each location, site conditions and dry and wet extreme events is analyzed. Standardized Precipitation Index (IEP) for determination of wet, dry and normal years was used. This analysis showed that the Pampas shallow lakes do not behave in the same way to the rainfall events. Its origin, socio-economic use and rainfall patterns affect their spatiotemporal variation and morphometric.</p>

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Laguarda, Paula Inés. "Selling the pampas. The imaginary of modernization and propagandistic photography in the National Territory of La Pampa." Quinto Sol 14 (January 1, 2010): 1–26. http://dx.doi.org/10.19137/qs.v14i0.14.

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Marquez Camarena, Javier F., Hipólito Carbajal, Marco A. Rosario, and Carlos A. Galván. "APLICACIÓN DE SISTEMAS BLANDOS EN ANÁLISIS DE LA VIOLENCIA FAMILIAR Y SEXUAL, DISTRITO DE PAMPAS." Revista Científica Siglo XXI 1, no. 1 (June 17, 2021): 18–29. http://dx.doi.org/10.54943/rcsxxi.v1i1.7.

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Se hizo un análisis de la violencia familiar y sexual en el distrito de Pampas mediante la aplicación de Sistemas Blandos, metodología que comprende a sistemas duros, los cuales eran netamente aplicados a la tecnología, (Checkland, 2000) siendo muy inadecuados para investigar los sistemas organizacionales grandes y complejos. La zona de estudio comprendió el distrito de Pampas, donde se efectuó encuestas y entrevistas a 360 personas tomadas al azar, se realizó el diseño del problema estructurado sobre la violencia familiar y sexual considerando los modelos conceptuales del alcalde y la población, seconstruyó el modelo de tarea primaria confirmada y validada en función a dichos modelos obtenidos, donde se aprecia que empleando un plan estratégico y la buena educación disminuye la violencia. Ensíntesis, la aplicación de los Sistemas Blandos influye positivamente en la identificación de alternativas para contrarrestar la violencia familiar y sexual. Con esta metodología se identificaron las actividades y procesos en la solución del problema; podemos apreciar la educación, seguridad, charlas y el desarrollo tecnológico las cuales se involucraron en la disminución de la violencia. El punto de partida para la estructuración del problema mencionado fue la coordinación con autoridades del distrito de Pampas.

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Álvarez, María Clara. "EVIDENCIAS TECNOLÓGICAS EN ASTAS DE VENADO DE LAS PAMPAS EN EL CENTRO DE LA PAMPA HÚMEDA, ARGENTINA." Chungará (Arica), ahead (2018): 0. http://dx.doi.org/10.4067/s0717-73562018005001801.

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Soares da Silva Giacomolli, Dóris Helena. "Centauros e gaúchos - o surgimento da figura mítica “Centauro dos pampas”." Letras Escreve 9, no. 2 (March 2, 2020): 173. http://dx.doi.org/10.18468/letras.2019v9n2.p173-186.

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O processo de formação da imagem do gaúcho sul-rio-grandense está estreitamente relacionado com o cavalo, o que culminará na aproximação definitiva de sua imagem à figura desse animal. O homem do pampa, inseparável dos cavalos, se cristaliza na cultura popular. Esse trabalho ressalta a importância da literatura na consolidação dessa relação entre a figura do gaúcho e o mito do centauro, pois ainda que o surgimento dessa concepção não se dê na literatura e sim no processo de formação da imagem do gaúcho, o que antecede à literatura gauchesca, a literatura imortaliza essa percepção. Dessa aproximação entre os centauros e gaúchos surgirá, então, uma criatura mitificada, estilizada e cultuada na literatura fazendo surgir expressões como “Rio Grande a cavalo” e “centauro dos pampas”. Este trabalho estabelecerá esta e outras relações entre o personagem Capitão Rodrigo de “Um certo Capitão Rodrigo” de O continente primeiro volume da trilogia O tempo e o vento, texto épico regional do escritor Erico Verissimo e a figura mitológica, o centauro. O artigo pretende deter-se especialmente nas relações de sexualidade, luxúria, violência, embriaguez, instinto bestial e ações irracionais do Rodrigo Cambará que o fazem aproximar-se irremediavelmente do centauro, criatura resultante do estupro da nuvem Nephele, na antiga Grécia.

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Lara, B., M. Gandini, P. Gantes, and S. D. Matteucci. "Trends and land surface phenological responses to climate variability in the Argentina Pampas." Cuadernos de Investigación Geográfica 46, no. 2 (September 15, 2020): 581–602. http://dx.doi.org/10.18172/cig.4310.

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Understanding the interaction between land surface and atmosphere processes is fundamental for predicting the effects of future climate change on ecosystem functioning and carbon dynamics. The objectives of this work were to analyze the trends in land surface phenology (LSP) metrics from remote sensing data, and to reveal their relationship with precipitation and ENSO phenomenon in the Argentina Pampas. Using a time series of MODIS Normalized Difference Vegetation Index (NDVI) data from 2000 to 2014, the start of the growing season (SOS), the annual integral of NDVI (i-NDVI, linear estimator of annual productivity), the timing of the annual maximum NDVI (t-MAX) and the annual relative range of NDVI (RREL, estimator of seasonality) were obtained for the Argentina Pampas. Then, spatial and temporal relationships with the Multivariate ENSO Index (MEI) and precipitation were analyzed. Results showed a negative trend in annual productivity over a 53.6% of the study area associated to natural and semi-natural grassland under cattle grazing, whereas a 40.3% of Argentina Pampas showed a significant positive trend in seasonality of carbon gains. The study also reveals that climate variability has a significant impact on land surface phenology in Argentina Pampas, although the impact is heterogeneous. SOS and t-MAX showed a significant negative correlation with the precipitation indicating an earlier occurrence. 23.6% and 28.4% of the study area showed a positive correlation of the annual productivity with MEI and precipitation, respectively, associated to rangelands (in the first case) and to both rangeland and croplands, in the second case. Climate variability did not explain the seasonal variability of phenology. The relationships found between LSP metrics and climate variability could be important for implementation of strategies for natural resource management.

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Chatellenaz, Mario Luis, and Elba Marlene Zaracho. "RECORD OF A LEUCISTIC PAMPAS FOX LYCALOPEX GYMNOCERCUS (CARNIVORA: CANIDAE) IN NORTHEASTERN OF ARGENTINA." Oecologia australis 25, no. 04 (December 15, 2021): 889–93. http://dx.doi.org/10.4257/oeco.2021.2504.10.

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Leucism is a frequent chromatic mutation in mammals that causes partial or complete fur depigmentation. This type of mutation is interesting because they have physiological and ecological implications. We report here the first record of leucism in a pampas fox Lycalopex gymnocercus (Carnivora: Canidae), photographed using a camera trap in the northeast of the province of Corrientes, Argentina. Although cases of hypopigmentation are apparently very rare among pampas foxes, they could actually be more frequent than previously assumed. Given the ecological and physiological importance of these anomalies, researchers should report all records of this type in order to understand the degree to which these genetic variants are present in wild populations of different species of vertebrates.

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Porto, Lucas, and Ana Maria Rui. "Diet and habitat use by two sympatric canids in the Pampas of South America." Neotropical Biology and Conservation 14, no. 1 (April 11, 2019): 1–12. http://dx.doi.org/10.3897/neotropical.14.e34828.

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The crab-eating fox (Cerdocyon thous) and the Pampas fox (Lycalopex gymnocercus) are two canids with very similar food and habitat requirements, which live in sympatry across parts of their distributions. Here we describe the diet and habitat use of both canids in the Pampas biome. The study took place in southern Brazil from December 2012 to December 2013. Diet and habitat use analyses were based on fecal samples, footprints and direct visualizations. Diet overlap was measured using Pianka’s index, while habitat use was measured using presence records from three different environments; forests, edges and open areas. Both canids feed on invertebrates and vertebrates but have preferences for fruits, especially Syagrus romanzoffiana. Pianka’s index showed a high overlap of their diets throughout the year, with the exception of autumn. Regarding habitat use, C. thous preferred to inhabit forested areas while L. gymnocercus was more active in open areas. Our results showed that fruits were the most consumed food item in the Pampas biome. Our findings suggest that habitat use by these two canids is affected by seasonal variation in fruit abundance, but other factors, such as parental care, should be taken into account when explaining how they behave throughout the year.

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Baladrón, Alejandro V., and Matías G. Pretelli. "Agonistic interactions in raptors of the Pampas region." Wilson Journal of Ornithology 125, no. 3 (September 2013): 650–55. http://dx.doi.org/10.1676/12-183.1.

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Jagoe, Eva-Lynn Alicia. "Pace and the Pampas in Argentine Travel Narratives." Bulletin of Hispanic Studies 81, no. 3 (September 2004): 361–78. http://dx.doi.org/10.3828/bhs.81.3.6.

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Landgraf, Julia. "ETNICIDADE NOS PAMPAS: A IDENTIDADE SOCIAL DO GAÚCHO." Espaço Ameríndio 15, no. 3 (December 23, 2021): 296. http://dx.doi.org/10.22456/1982-6524.120380.

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Journal articles on the topic 'Pampas'

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